Manuale tecnico inglese PROVA 1 - Atmopomiar Sp. z o.o.

3

Indice 1 Outdoor Unit (mod. 8 – 10 – 13 HP) ................ .............................................................................................. 5

1.1 Technical specifications ...................................................................................................................... 6

1.2 External dimensions ........................................................................................................................... 7

1.3 Allowed temperature range ................................................................................................................ 8

1.4 Noise level charateristics.................................................................................................................... 9

1.5 Space required for installation .......................................................................................................... 12

1.6 Outline diagram of refrigerant piping ................................................................................................ 14

1.7 Refrigerant piping installation specifications .................................................................................... 14

1.8 Refrigerant piping – Selecting branches and permissible lengths ................................................... 15

1.9 Refrigerant charging ......................................................................................................................... 20

1.10 Note for branch piping ...................................................................................................................... 21

1.11 How to extend exhaust pipe ............................................................................................................. 22

1.12 Summary of electric wiring installation ............................................................................................. 24

1.12.1 Opening for power supply wires / signal wires ........................................................................ 24

1.12.2 Wiring example (AC 230 V single phase) ................................................................................ 25

1.13 Power supply wiring procedure ........................................................................................................ 26

1.13.1 Wiring instruction ..................................................................................................................... 26

1.13.2 Wiring lenght ............................................................................................................................ 27

1.13.3 Branch wiring ........................................................................................................................... 28

1.14 Various function settings .................................................................................................................. 29

2 Outdoor unit (mod. 16 – 20 – 25 HP) ............... ............................................................................................ 30

2.1 Specifiche tecniche ........................................................................................................................... 31

2.2 External dimensions ......................................................................................................................... 32

2.3 Allowed temperature range .............................................................................................................. 33

2.4 Noise level charateristics.................................................................................................................. 34

2.5 Space required for installation .......................................................................................................... 37

2.6 Combinations and capacities of the outdoor units and indoor units ................................................. 39

2.6.1 Stand-alone installation ........................................................................................................... 39

2.6.2 Combined installation .............................................................................................................. 39

2.7 Outline diagram of refrigerant piping ................................................................................................ 40



2.8 Refrigerant piping installation specifications .................................................................................... 42



2.8.3 Reducer selection for combined installation ............................................................................ 43

2.9 Refrigerant piping – Selecting branch pipes and permissible lengths ............................................. 46


2.9.2 Stand alone installation ............................................................................................................ 50

2.10 Refrigerant charging ......................................................................................................................... 55

2.10.1 Refrigerant charging amount ................................................................................................... 55

2.10.2 Refrigerant charging method ................................................................................................... 55

2.11 Notes for branching piping ............................................................................................................... 56

2.12 How to extend exhaust pipe ............................................................................................................. 57

2.13 Power supply wiring procedure ........................................................................................................ 59

2.13.1 Wiring instruction combined installation .................................................................................. 59

2.13.2 Wiring instruction stand-alone installation ............................................................................... 60

2.14 Summary of electric wiring installation ............................................................................................. 61

2.14.1 Opening for power supply wires / signal wires ........................................................................ 61

2.14.2 Wiring example (AC 230V single phase) ................................................................................. 62

2.14.3 Direct expansion indoor unit system wiring (AC 230V single phase) ...................................... 63

2.14.4 Air water system wiring (AC 230V single phase) ................................................................... 63

2.15 Wiring length .................................................................................................................................... 64

2.16 Branch wiring .................................................................................................................................... 65

2.17 Various function setting .................................................................................................................... 66

Specifications, drawings and general information within this manual are subject to change without notice.

5

1 Outdoor Unit (mod. 8 – 10 – 13 HP)

8 HP – AXGP224E1 [N – P] [NATURAL GAS – LPG]



6

1.1 Technical specifications

Model AXGP224E1 AXGP280E1 AXGP355E1

8 HP 10 HP 13 HP

Performace

Rated cooling capacity* 100%

kW

22,4 28,0 35,5

50% 11,2 14,0 17,8

Rated heating capacity** 100% 25,0 31,5 40,0

50% 12,4 15,5 20,2

Maximum heating capacity*** 26,5 33,5 42,5

Fuel gas

Type Natural gas G20 Natural gas G25

LPG

Rated cooling consumption* 100%

kW

15,0 19,2 26,4

50% 7,4 8,0 9,9

Rated heating consumption** 100% 15,9 20,3 27,0

50% 8,3 9,6 11,7

Maximum heating consumption*** 21.7 27.5 36,6

Electricity

Power supply V AC 230 single phase

Starting current A 20

Rated consumption / Current Cooling

kW/[A] 0,34 / [1,4] 0,42 / [1,8]

0,44 / [1,9] 0,58 / [2,5]

0,57 / [2,4] 0,74 / [3,2] Heating

Engine

Type Water cooled vertical type, 3 cylinders, 4 strokes

Displacement cm3 952

Rated mechanical output kW 5,0 6,2 7,9

Revolution range Cooling

rpm 800~1.250 800~2.450

800~1.550 800~2.900

800~2.000 800~2.900 Heating

Compressor Type x numbers of units Variable capacity scroll x 2

Transmission Poli V belt

Refrigerant Type R410A

Factory charge Kg 11,0

Fans

Type x numbers of units Variable speed propeller type x 2

Rated total flow rate m3 / h 10.020 11.640 12.780

Static pressure: standard – [silent mode] Pa 5 – [30]

Noise level Sound pressure : standard – [silent mode] dB(A) 54 – [52] 56 – [52] 59 – [57]

Piping

Refrigerant Gas line

mm Ø 19,1 Ø 9.5

Ø 22,2 Ø 9.5

Ø 25,4 Ø 12.7 Liquid line

Fuel gas inch R 3 / 4

Exhaust gas mm

Ø 80

Exhaust drain: standard – [cold district] Ø 15 – [Ø 30]

Piping permissible length: actual / equivalent – [AWS]

m

165 / 190 – [70 / 60]

Max. distance after the first branch 60

Max. height difference between indoor units 15

Max. height difference between indoor and outdoor units – [AWS] + 50 / - 40 – [+25 / - 20]

External dimensions

Height

mm

2.077

Width 1.400

Depth 880

Weight: standard – [cold district] Kg 565 – [570]

Connectable indoor units Number: standard – [cold district] 20 – [13] 25 – [16] 32 – [20]

Capacity: standard – [cold district] % 50 – 200 / [50 – 130]

Maintenance Scheduled maintenance interval

h 10.000

Engine oil replacement 30.000

Special models: Cold district (F): outdoor temp lower than – 10°C /AWS (A): outdoor unit connectable with AWS / W-kit (K): built-in domestic hot water version

*Outdoor temp. 35°C (DB) – indoor temp. 27°C (DB) / ** Outdoor temp 7°C (DB) – indoor temp. 20°C (DB) / ***Outdoor temp. 2°C (DB) – indoor temp. 20°C (DB)

7

1.2 External dimensions

8

1.3 Allowed temperature range

Cooling

Heating

30

16

-20 21

Temperatura aria esterna [°C]

Tem

pera

tura

aria

inte

rna

[°C

]

Campo di applicazione in riscaldamento

Kit zone fredde

-20 -10 0 10 20

10

20

3030

16

-20 21


Tem

pera

tura

aria

inte

rna

[°C

]


Kit zone fredde

-20 -10 0 10 20

10

20

30

� All measurements are expressed as dry bulb

Note Scale temperature setting on the remote control

Limite

superiore Limite

inferiore

Cooling. 35°C 20°C

Heating 30°C 15°C

Indo

or te

mpe

ratu

re (

°C)

Indo

or te

mpe

ratu

re (

°C)

Outdoor t emperature (°C)

Outdoor temperature (°C)

Allowed cooling mode temperature range

Allowed heating mod e temperature range

Cold district

9

1.4 Noise level charateristics

Global values (dB(A)/m)

Model Front Rear Right Left

AXGP224E1 N-P 54 53 49 50

Detection status:

� Semi-anechoic room � Distance 1 m � Height 1 m

Front

10

Noise level charateristics



AXGP280E1 N-P 56 56 52 53

Detection status:


Front

11




AXGP355E1 N-P 59 59 54 55

Detection status:


Front

12

1.5 Space required for installation

1) Provide sufficient distance from flammable materials

Install the outdoor unit in the proper distance fro m flammable items as required by the relevant local and national regulations, and technical standards. (See the reference below.) If the distance does not meet the requirements, it could result in a fire.

WARNING D

ISTA

NC

E F

RO

M F

LAM

MA

BLE

MA

TE

RIA

LS (

MM

)

FR

ON

T

FR

ON

T

13

2) Installation space

Provide ample space for inspection and maintenance taking into account the refrigerant and fuel gas piping.

� The following drawings show the minimum installatio n space for providing room for intake air and inspection and maintenance operation s. Insufficient space could result in injury to the maintenance personnel or damage to the equipment

CAUTION

FR

ON

T

* F

RO

NT

MU

LTIP

LE U

NIT

INS

TALL

AT

ION

* F

RO

NT

* T

HIS

SP

AC

E M

US

T B

E 8

00 M

M O

R M

OR

E W

HE

N T

HE

SN

OW

HO

OD

IS M

OU

NT

ED

MIN

IMU

M D

ISTA

NC

E F

RO

M S

OR

RO

UN

DIN

G O

BJE

CT

S (

MM

)

14

1.6 Outline diagram of refrigerant piping

1.7 Refrigerant piping installation specifications

Outdoor Unit

Item

Refrigerant main piping diameter (mm)

Permissible piping length (m)

Equivalent length/ Actual length

Permissible height difference (m)

Refrigerant oil

Vapor line

Liquid line Outdoor unit is

higher

Outdoor

unit is lower

P224 ø19.1

*1(ø22.2) ø9.5

*1(ø12.7)

190 /165

*2 50 40 NL10

P280

ø22.2 *1(ø25.4)

ø9.5 *1(ø12.7)

P355

ø25.4 *1(ø28.6)

ø12.7 *1(ø15.9)

ATTENTION

∗ If the piping length exceeds 100 m, install pipes larger by one rank specified in ( ).

∗∗ When total capacity of connected indoor unit exceeds 130 % of rated capacity, restrict the permissible piping length (actual length) to 100 m or less.

Refrigerant liquid pipe (brazing)

Brazing connections

Indoor unit Indoor unit

Branch pipes or helders (sold separatly)

Outdoor unit

Fuel gas pipe R ¾’’

Refrigerant capor line (brazing)

Condensation water drain port Exhaust gas water drain port

Flare connections

15

1.8 Refrigerant piping – Selecting branches and per missible lengths

� Piping specifications (Use the following pipes)

• Piping material: Phosphate deoxidized copper seamless air-conditioning pipe JIS H3300, C1220T (Japanese technical standard) or equivalent.

• Refrigerant pipe specifications: Outer diameter × thickness (mm) ø 6.4 × 0.8 ø 9.5 × 0.8 ø 12.7 × 0.8 ø 15.9 × 1.0 ø 19.1 × 1.0 ø 22.2 × 1.0 ø 25.4 × 1.0 ø 28.6 × 1.0 ø 31.8 × 1.1 ø 38.1 × 1.35

(1) 【Main piping 】Between outdoor unit and first branch (A on the fig ure)

Outdoor unit P224 P280 P355 Vapor line (mm) Ø 19.1 Ø 22.2 Ø 25.4 Liquid line (mm) Ø 9.5 Ø 12.7

(2) Main piping 】Between outdoor unit and first branch (A on the fig ure)

Total capacity of downstream indoor units (kW)

fino a 22.4kW

da 22.4kW a 33.0kW

da 33.0kW a 47.0kW

da 47.0kW a 71.0kW

da 71.0kW o più

Vapor line (mm) Ø 15.9 Ø 22.2 Ø 28.6 Ø 31.8 Liquid line (mm) Ø 9.5 Ø 12.7 Ø 15.9 Ø 19.1

(3) Piping between branch and indoor unit (a, b, c, d, e and f on the figure)

Indoor unit P22, 28, 36, 45, 56 P71, 80, 90, 112, 140 P224 P280 Vapor line (mm) Ø 12.7 Ø 15.9 Ø 19.1 Ø 22.2 Liquid line (mm) Ø 6.4 Ø 9.5

• Make sure that total extension refrigerant piping l enght is 520 m. or less. • If the refrigerant piping equivalent length exceeds 100 m, use pipes with diameters larger by

one rank indicated in “4-3. Refrigerant piping installation specifications“ on the previous page for the main liquid and vapor piping. Example: ø 12.7 → ø 15.9.

• This unit uses R410A. Limit pressure of O material pipe with ø 19.1 diameter or larger is insufficient. Be sure to use 1/2H or H material pipes with minimum thickness or thicker. For ø 19.1 pipe only, however, as long as the thickness is 1.05 mm or greater, O materials can be used.

• Method of refrigerant piping can be selected from line branching, header branching, and line-header combined branching. Select the proper method according to the layout of indoor units.

• Refrigerant piping length and the height difference between indoor units should be arranged as short as possible.

• Re-branching after the header branching is not allowed.

CAUTION

Outdoor unit

First branch

Indoor Unit 1

Indoor Unit 2

Indoor Unit 3

Indoor Unit 4

Indoor Unit 5

Indoor Unit 6

16

� Selecting branch piping and permissible piping leng th

Line branching

Layout example

(When 6 indoor units are connected)

Note: If there is a height difference between the locations of

indoor and outdoor units, apply a small “trap pipes” only on the vapor line at least every 10 m as

illustrated.

10 m10 m

Permissible piping length

Maximum piping length (L)* (Equivalent length / Actual length) A + B + C + D + E + f 190/165m or less

Maximum piping length after the first branch B + C + D + E + f 60 m or less

Piping length difference after the first branch (when A is shortest length after the first branch) l – a 40 m or less

Permissible height

difference

Height difference between indoor and outdoor unit (H)

When outdoor unit is higher than indoor unit

50 m or less

When outdoor unit is lower than indoor unit

40 m or less

Height difference between indoor units (h) 15 m or less

Bra

nch

pipi

ng

How to select the branch piping kit

* When total capacity of connected indoor unit exceeds 130% of rated capacity, restrict the permissible piping length (actual length) to 100 m.

CAUTION

In the c ase of h eader b ranching or lin e-header combined b ranching, ind oor units with c apacity of P280 or larger cannot be connected after the header branching (c, d, e or f in the right figure). Connect the indoor units with capacity of P280 or la rger to line branching (a or b in the right figure) .

Important remider

� Be sure to use the indoor unit piping and indoor branch piping that correspond to the indoor unit connecting piping size.

� Always install the branch piping joint (both for vapor and liquid) so that the joint branches either horizontally or vertically.

� Refer to the following table to select the branch piping kit because the size of branching pipe varies depending on the total capacity of connected indoor units (total capacity of the downstream indoor units).

17

Header branching

Layout example


Note: If there is a height difference between the locations of indoor and outdoor units, apply a small

“trap pipes” only on the vapor line at least every 10 m as illustrated.

10 m10 m


Maximum piping length (L)* (Equivalent length / Actual length) A + f 190/165m or less

Maximum piping length after the first branch f 60 m or less


Permissible height

difference


When outdoor unit is higher than indoor unit 50 m or less

When outdoor unit is lower than indoor unit 40 m or less

Height difference between indoor units (h)

15 m or less

Bra

nch

pipi

ng



Important remider



� Re-branching after the header branching is not allowed. Besides, the indoor unit with capacity of P280 or larger can not be connected after the header branching

� Connect crimp piping (locally procured) to the branching points (on the indoor unit connection side) in accordance with the number of connection indoor units.

� Refer to the header branching kit (sold separately) for the crimp piping size.

18

Line – Header combined branching

Layout example


Note: If there is a height difference between the locations of indoor and outdoor units, apply a small

“trap pipes” only on the vapor line at least every 10 m as illustrated.

10 m10 m


Maximum piping length (L)* (Equivalent length / Actual length) A + B + C + f 190/165m or less

Maximum piping length after the first branch f 60 m or less


Permissible height

difference


When outdoor unit is higher than indoor unit 50 m or less

When outdoor unit is lower than indoor unit 40 m or less

Height difference between indoor units (h)

15 m or less

Bra

nch

pipi

ng



Important remider



� Refer to the following table to select the branch piping kit because the size of branching pipe varies depending on the total capacity of connected indoor units (total capacity of the downstream indoor units).

How to select the header piping kit

� Connect crimp piping (locally procured) to the branching points (on the indoor unit connection side) in accordance with the number of connecting indoor units.

� Refer to the header branching kit (sold separately) for the crimp piping size.

Important remider



� Re-branching after the header branching is not allowed. Besides, the indoor unit with capacity of P280 or larger can not be connected after the header branching

19

AWS line connection

Layout example

(When AWS is connected)

Note: If there is a height difference between the locations of indoor and outdoor units, apply a small “trap pipes” only on the vapor line at least

every 10 m as illustrated.

10 m


Maximum piping length (L) (Equivalent length / Actual length) L = A 70/60m or less

Permissible height

difference

Height difference between AWS unit and outdoor unit (H)

When outdoor unit is higher than indoor unit

50 m or less

When outdoor unit is lower than indoor unit

40 m or less

ATTENTION

Never exceed the maximum allowed distance between A WS and GHP. Failure in doing so can result in malfunctioning of the units and invalidat es the warranty.

WARNING

• Always refer to AWS installation manual for maintena nce clearence and position of the unit.

• Always connect the AWS to the designed outdoor unit for AWS.

20

1.9 Refrigerant charging

ATTENTION

• When charging the refrigerant, accurately measure t he length of the piping and charge

the proper amount of refrigerant. If the amount of refrigerant is not proper, performance will decline or a breakdown could occur.

• After completion of refrigerant charging, write dow n the installation record on the plate “POINTS FOR INSTALLATION” inside the outdoor unit con trol box panel. Besides, calculate the refrigerant amount for the whole syst em and write down the amount on the plate. Calculation formula is shown on the plate. ( Write with a permanent marker so that the record does not disappear easily.)

1) Refrigerant charging amount. Always check the refrigerant gas factory charge on the unit label before calculating the amount to be added. Calculate the amount of refrigerant to be charged according to the following formula and liquid piping length for each size of the piping.

When the GHP is connected to YOSHI AWS E1:

Charge amount (kg) = (L1 × 0.353) + (L2 × 0.250) + (L3 × 0.170) + (L4 × 0.110) + (L5 × 0.054)

+ (L6 x 0.022) + Q AWS

When the GHP is connected to direct expansion indoor units:

Charge amount (kg) = (L1 × 0.353) + (L2 × 0.250) + ( L3 × 0.170) + (L4 × 0.110) + ( L5 × 0.054)

+ (L6 x 0.022) + Q de

Type or indoor system Qde [kg] Qaws [kg]

Direct expansion single unit 0,0 -

Direct expansion multiple indoor unit 1,0 -

Direct expansion air handling unit AHU Refer to manufacturer specification -

Air water system YOSHI AWS E1 - 0,0

2) Refrigerant charging method

• Always charge the refrigerant as a liquid in the tank. Charging as

a vapor may cause a compositional change of the refrigerant, and could result in a performance decline or a breakdown.

• Always use a refrigerant scale when charging the refrigerant. using a charging cylinder may cause a compositional change of the refrigerant, and could result in a performance decline or a breakdown.

• To avoid cross-contamination with other oils types, make sure to separate maintenance tools according to the type of refrigerant used. In particular, never use the gauge manifold and charging hose with other refrigerants (R22, R407C etc.)

CAUTION

When charging the refrigerant, be sure to wear a pa ir of leather gloves. If the refrigerant touches your skin directly, it may cause a frostbite.

L1: Liquid pipe Ø 22.2 total length (m) L2: Liquid pipe Ø 19.1 total length (m) L3: Liquid pipe Ø 15.9 total length (m)


21

1.10 Note for branch piping

• Always install line branch pipes to make either “vertical branching” or “horizontal branching” for both vapor and liquid lines.

Horizontal Vertical

• Always install header branch pipes to make “horizontal branching” for both vapor and liquid lines.

REMIND

When connecting the branch pipe, do not bend the main pipe near the connection. If such bending is unavoidable, provide a minimum of 150 mm of straight portion. However, do not use a bent pipe with an external diameter of Ø 28.6 or larger.

Orizzontale

Vapor line

Liquid line

• Do not perform another braching after header branching.

• When performing header branching, connect the crimpt pipe (locally procured) in accordance with the number of indoor units

22

1.11 How to extend exhaust pipe • Use stainless steel or polymer section pipes with a diameter of 80 mm for exhaust pipe extension. • Make sure the pipes for extension can withstand temperatures up to 120° and acid condensed water.

ATTENTION

• Do not extend the exhaust pipe to a location where the exhaust gas could potentially enter the indoors. If the exhaust pipe is extended to near the intake/exhaust port to the room, window or ventilation port, the exhaust gas could flow into the room and cause gas poisoning or an accident due to lack of oxygen.

• Do not extend the exhaust pipe to an area where fla mmable gas can be produced, flow into, accumulate or leak, or where volatile flammab le materials can be treated. Extension to such locations could result in a fire or an explosion.

• Be sure to discharge the exhaust gas directly to an outdoor area open to the atmosphere. Accumulated exhaust gas could cause gas poisoning or an accident due to lack of oxygen. Install the outdoor unit where adequate ventilation is provided.

• Be sure to discharge the exhaust gas to the atmosph ere where the gas causes no adverse effect to the surroundings. If the exhaust gas is exhausted into the catch basin or ditch, it could be drawn into the room and cause gas poisoning or an accident due to lack of oxygen.

• Be sure to discharge the exhaust gas to a location where the exhaust gas is not directed toward animals or plants. Exposure to the exhaust gas or discharge air could have harmful influence on animals or plants.

• Be sure to maintain the appropriate clearance from the flammable or flame resistant material covering building in accordance with the f ollowing figure. Inadequate clearance could cause a fire.

Distance from the exhaust pipe must be as follows:

Distance from the top end opening of the exhaust pipe must be as follows:

Try to avoid extending the exhaust pipe in areas where the outside temperature falls to 0 Cº or less because the inside of the exhaust pipe may freeze.

23

Extended the exhaust pipe according to the following procedure by referring to the figure below.

1. Remove the exhaust top from the outdoor unit exhaust port.

2. Connect the extra sections sequentially from the outdoor unit side, and extend the exhaust pipe to the desired position following the restriction below.

• Total length of the exhaust pipe extension shall not exceed 15 m. • Total number of exhaust pipe bends (bending angle = 90 °) shall not exceed 5 (each equivalent

length 1m). • The extended pipe shall be anchored to the building or similar structure with fixing brackets every

1.5 to 2 m. • The exhaust pipe shall not be gathered or connected with the other exhaust pipe.

2. Attach the exhaust top at th outlet of the extended exhaust pipe paying attention to the following:

• The angle of the exhaust vent plane shall be vertical to the ground by adjusting the elbow pipes so

that rainwater may not enter the exhaust pipe directly. • Apply silicone caulking material at the lower part of the metal mesh in accordance with the following

figure so that the drain water may not drip from the exhaust top. (Refer to the figure below.)

24

1.12 Summary of electric wiring installation

ATTENTION

• Use a dedicated branch circuit. Never use the outdo or unit with other appliances on the

same circuit. If the outdoor unit and other appliances are used on the same circuit, secondary damage could occur due to breaker tripping.

• All electrical installation work must be performed by a certified electrician in accordance with the relevant local and national reg ulations, technical standards, and instructions provided in this manual.

Improper installation could result in electrical shock, fire or other hazards. • Provide an electric leakage breaker with the specifi ed capacity for each outdoor unit (sensitivity amperage is 30 mA). If the electric leakage breaker is not installed, electrical shock could occur. • Provide an over-current breaker with the specified c apacity for each outdoor unit.

If the proper over-current breaker is not installed, overheating, fire or secondary damage due to the breaker tripping could occur.

• Always use the designated cable for wiring. Make su re that the cable is properly connected and fixed so that the outside forces may not be transferred to the terminal connection. Improper connecting or fixing can result in overheating, fire or other hazards.

• Always ground the unit in accordance with the relev ant technical standards. Improper grounding can result in electrical shock.

• Select an “inverter type” electric leakage breaker t hat will not be affected by high-frequency leakage currents.

1.12.1 Opening for power supply wires / signal wires

Enlarged

Opening for signal wires

Opening for power supply wires

Bundle power supply wires and signal wires to avoid contact with the pipes

25

1.12.2 Wiring example (AC 230 V single phase)

26

1.13 Power supply wiring procedure

1.13.1 Wiring instruction

27

1.13.2 Wiring lenght

The wiring length of indoor-outdoor and outdoor-outdoor signal wires except the wiring of the remote controller must not exceed the following restriction:

• Longest wiring length: 1000 meters

• Total wiring length: 2000 meters

(When using shielded wires, the total wire length is restricted up to 1500 meters.)

SYSTEM EXAMPLE

• In the above system, the longest wiring distance is 900 m between Ⓐ and Ⓒ, which satisfiea the longest wiring length limit of 1000 m. and total length, which is the total 900 m between Ⓐ and Ⓒ, and 200 m between Ⓑ and Ⓓ is 1100 m. this also satisfies the total wiring limit of 2000 m. the system functions properly only when both the longest wiring length and the total wiring length are within the limit as shown above.

CAUTION

• Be sure to check the longest wiring length and the total wiring length at the time of

designing. When the length exceeds the acceptable r estriction range, consider dividing the system or installing a D Ⅲ -NET extension adapter (sold separately) additionally .

28

1.13.3 Branch wiring The following 3 wiring methods are acceptable. • SERIES WIRING

• BUS WIRING (up to 10 branches, re-branching after the branch is not possible)

• STAR WIRING (up to 10 branches, re-branching after the branch is not possible)

Note) Although the above figures show the examples using the centralized controller, the same wiring system can be used with other centralized control devices.

29

1.14 Various function settings

Address setting method of the indoor and outdoor un its

� The address setting of the indoor and outdoor units is performed automatically.

� When the centralised remote control is added, set the group address to the indoor units with the standard remote controller. If the remote controller is not installed provide that the service centre brings a spare one to set the group address on each unit.

30

2 Outdoor unit (mod. 16 – 20 – 25 HP)

16 HP – AWGP450E1 [N – P] [NATURAL GAS – LPG]

20 HP – AWGP560E1 [N – P] [NATURAL GAS - LPG]

25 HP – AWGP710E1 [N – P] [NATURAL GAS - LPG]

31

2.1 Specifiche tecniche

Model AWGP450E1 AWGP560E1 AWGP710E1

16 HP 20 HP 25 HP

Performance

Rated cooling capacity* 100%

kW

45,0 56,0 71,0

50% 22,5 28,0 35,5

Rated heated capacity** 100% 50,0 63,0 80,0

50% 24,7 30,9 40,0

Maximum heating capacity*** 53,0 67,0 84,0

Fuel gas

Type Natural gas G20 Natural gas G25

LPG

Rated cooling consumption* 100%

kW

31,0 40.7 55,1

50% 12.4 16,0 19,6

Rated heating consumption** 100% 31.7 42,0 53,6

50% 13,5 17,0 22,1

Maximum heating consumption*** 41.4 54 68.9

Electricity

Power supply V AC 230 single phase

Starting current A 20

Rated consumption / Current Cooling

kW/[A] 1,06 / [4,6] 1,02 / [4,4]

1,10 / [4,8] 1,02 / [4,4]

1,37 / [5,9] 1,18 / [5,1] Heating

Engine

Type Water cooled vertical type, 4 cylinders, 4 stroke

Displacement cm3 1.998

Rated mechanical output kW 10,0 12,4 15,7

Revolution range Cooling

rpm 600~1.800 600~2.500

600~1.950 600~2.800

600~2.275 600~3.000 Heating

Compressor Type x numebers of units Variable capacity scroll x 2

Transmission Poli V belt

Refrigerant Type R410A

Factory charge kg 11,5

Fans

Type x numbers of units Variable speed propeller type x 2

Rated total flow rate m3 / h 20.760 23.280

Static pressure: standard – [silent mode] Pa 5 – [30]

Noise level Sound pressure: standard – [silent mode] dB(A) 56 – [54] 59 – [57] 62 – [60]

Piping

Refrigerant Gas line

mm Ø 28,6 Ø 15,9

Ø 28,6 Ø 15,9

Ø 31,8 Ø 15,9 Liquid line

Fuel gas inch R 3 / 4

Exhaust gas mm

Ø 100

Exhaust drain: standard – [cold district] Ø 15 – [Ø 30]

Piping permissible length: actual / equivalent [AWS]

m

165 / 190 – [70 / 60]

Max. distance after the first branch 60

Max. distance between combination multi units: horizontal/vertical 10 / 4

Max. heigth difference between indoor units 15

Max. heigth difference between indoor and outdoor units – [AWS] + 50 / - 40 – [+25 / - 20]

External dimensions

Height

mm

2.077

Width 1.660

Depth 880

Weight: standard – [cold district] Kg 735 – [740] 755 – [760]

Connectable indoor units Number: standard – [cold district] 40 – [26] 50 – [33] 63 – [41]

Capacity: standard – [cold district] % 50 – 200 / [50 – 130]

Maintenance Scheduled manitenance interval

h 10.000

Engine oil replacement 30.000

Special models: Cold district (F): outdoor temp lower than – 10°C /AWS (A): outdoor unit connectable with AWS / W-kit (K): built-in domestic hot water version

*Outdoor temp. 35°C (DB) – indoor temp. 27°C (DB) / ** Outdoor temp 7°C (DB) – indoor temp. 20°C (DB) / ***Outdoor temp. 2°C (DB) – indoor temp. 20°C (DB)

32

2.2 External dimensions

33

2.3 Allowed temperature range

Cooling

Heating

30

16

-20 21


Tem

pera

tura

aria

inte

rna

[°C

]


Kit zone fredde

-20 -10 0 10 20

10

20

3030

16

-20 21


Tem

pera

tura

aria

inte

rna

[°C

]


Kit zone fredde

-20 -10 0 10 20

10

20

30

� All measurements are expressed as dry bulb

Note Scale temperature setting on the remote control

Limite

superiore Limite

inferiore

Cooling. 35°C 20°C

Heating 30°C 15°C

Indo

or te

mpe

ratu

re (

°C)

Indo

or te

mpe

ratu

re (

°C)

Outdoor temperature (°C)

Outdoor temperature ( °C)

Allowed cooling mode temperature range

Allowed heating mod e temperature range

Cold district

34

2.4 Noise level charateristics



AWGP450E1 N-P 56 58 55 56

Detection status:


35




AWGP560E1 N-P 59 60 56 59

Detection status:


36




AWGP710E1 N-P 62 63 59 62

Detection status:


37

2.5 Space required for installation

Provide sufficient distance from flammable materials

Install the outdoor unit in the proper distance fro m flammable item sas required by the relevant local and national regulations, and techni cal standards. (see the reference below) . If the distance does not meet the requirements, it could be result in fire.

WARNING D

ISTA

NC

E F

RO

M F

LAM

MA

BLE

MA

TE

RIA

LS (

MM

)

FR

ON

T

FR

ON

T

38

Installation space

Provide ample space for inspection and maintenance taking into account the refrigerant and fuel gas piping.

The following drawings show the minimum installatio n space for providing room for intake air and inspection and maintenance operation s.

Insufficient space could result in injury to the maintenance personnel or damage to the equipment.

CAUTION

FR

ON

T

* F

RO

NT

MU

LTIP

LE U

NIT

INS

TALL

AT

ION

* F

RO

NT

39

2.6 Combinations and capacities of the outdoor unit s and indoor units

CAUTION

Install the indoor units that correspond to indoor air conditioning load. Otherwise, the units frequently repeat start and st op. That could result in breakdown of the units. The number and total capacity of the connected indo or units must be within the range shown below. Connecting indoor units out of this range could res ult in breakdown.

• In a combination in which the total capacity of the connected indoor units exceeds the capacity of the

outdoor unit, the performance of each indoor unit will be lower than its rated capacity when all indoor units are operated simultaneously. Always strive to keep the total capacity of the indoor units within the outdoor unit capacity.

• Permissible piping length is restricted up to 100 m. (actual length), and total piping length is restricted up to 350 m. when the total capacityof the connected outdoor unit exceeds 130% of rated capacity.

• Connectable indoor units are P22 to P280. • ( ) shows the maximum value for cold district specification.

2.6.1 Stand-alone installation

Outdoor unit Number of connectable indoor units

Total capacity of connectable indoor units (kW)

Multi type

P450 (16HP) 40 (26) 90,0 (58,5)

P560 (20HP) 50 (33) 112,0 (72,8)

P710 (25HP) 63 (41) 142,0 (92,3)

2.6.2 Combined installation

Outdoor units “combination multi”

Number of connectable Indoor units

Total capacity of connectable indoor units (kW)

Multi type

P450 (16HP)+P450 (16 HP) 63 (53) 144,0 (117,0)

P450 (16HP)+P560 (20 HP) 63 (59) 161,6 (131,3)

P450 (16HP)+P710 (25 HP) 63 (63) 185,6 (150,8)

P560 (20HP)+P560 (20 HP) 63 (63) 179,2 (145,6)

P560 (20HP)+P710 (25 HP) 63 (63) 203,2 (165,1)

P710 (25HP)+P710 (25 HP) 63 (63) 227,2 (184,5)

40

2.7 Outline diagram of refrigerant piping


41


42

2.8 Refrigerant piping installation specifications


Outdoor unit

Item Refrigerant piping diameter

(mm)* Permissible piping

length (m)

Equivalent length/Actual length

Permissible height difference (m) Refrigerant

oil Vapor line Liquid line Outdoor

unit is higer Outdoor unit

is lower

Combination multi type

P450 [16HP] ø 28,6

ø 15,9 190/165∗∗ 50 40 NL10 P560 [20 HP] P710

[25 HP] ø 31,8

ATTENTION

∗ Refrigerant piping diameter: from outdoor unit to the Combined Multi connection kit. ∗∗ When total capacity of connected indoor units exceeds 130% of rated capacity, restrict the

permissible piping length (actual length) to 100 m. or less.


Outdoor unit

Item Refrigerant piping diameter

(mm)* Permissible piping

length (m)

Equivalent length/Actual length

Permissible height difference (m) Refrigerant

oil Vapor line Liquid line Outdoor

unit is higer Outdoor unit

is lower

Multi type

P450 [16HP] ø 28,6

(ø 31,8)∗ ø 15,9 (ø 19,1)∗

190/165∗∗ 50 40 NL10 P560

[20 HP] P710

[25 HP] ø 31,8

(ø 38,1)∗

ATTENTION

∗ Refrigerant piping diameter: from outdoor unit to the Combined Multi connection kit. ∗∗ When total capacity of connected indoor units exceeds 130% of rated capacity, restrict the

permissible piping length (actual length) to 100 m. or less.

43

2.8.3 Reducer selection for combined installation

Item Mark Name Specification Remark 16 HP 20 HP 25 HP

Vapor line

A Reducer D.E. 28,6 – D.I. 31,8 Provided with the

outdoor unit

- - ■

B D.I. 31,8 – D.E. 28,6 - - ■

Copper

pipe ø 28,6

Locally procured ■ ■ -

ø 31,8 - - ■

Liquid line C Reducer D.I 15,7 – D.E.12,7

Provided with the outdoor unit

■ ■ ■

Copper

pipe ø 15,9 Localy procured ■ ■ ■

Connection kit

Branches couple

- Optional ■ ■ ■

[Note: ■ means this part is used for the above-mentionedoutdoor unit.] <Precautions for combined installation> • Arrange the refrigerant piping for both liquid and vapor between the outdoor units so that the piping is

level or has upward gradient to prevent the refrigerant oil from accumulating in the piping.

44

• Connect the refrigerant piping between the outdoor units to the stop valve as shown in the following figure A or B. otherwise, the refrigerant oil can accumulate in the piping.

• Be sure to install the Combinetion Multi connection kit “horizontally” for both vapor and liquid line. Assicurarsi di installare il kit combination multi in posizione orizzontale per entrambe le tubazioni del liquido e del gas.

• In case of difference between the GHP, refer to the figures below for the correct positioning of the pipes.

45

• Make strait portion of 660 mm. or more before branching of the Combination Multi connection kit.

• When the piping length from the Combination Multi connection kit to the outdoor uniti s 2 m. or more, make a rising of 200 mm. or more on vapor piping only at location 2 m. or less the Combination Multi connction kit.

46

2.9 Refrigerant piping – Selecting branch pipes and permissible lengths

2.9.1 Combined installation Follow the piping specification shown below when installingnew refrigerant piping. When reusing existing piping, confirm that existing piping meets the pipe specification shown in this manual.

� Piping specifications

• Piping material: Phosphate deoxidized copper seamless air-conditioning pipe JIS H3300, C1220T (Japanese technical standard) or equivalent.

• Refrigerant pipe specifications: Outer diameters x thickness (mm.) • ø 6,4 x 0,8 (O material or OL material) ø 9.5 x 0,8 (O material or OL material)

ø 12,7 x 0,8 (O material or OL material) ø 15,9 x 1,0 (O material or OL material) ø 19,1 x 1,0 (1/2 H or H material)* ø 22,2 x 1,0 (1/2 H or H material)

ø 25,4 x 1,0 (1/2 H or H material) ø 28,6 x 1,0 (1/2 H or H material) ø 31,8 x 1,1 (1/2 H or H material) ø 38,1 x 1,35 (1/2 H or H material)

*For ø 19,1 pipe only, as long as the thickness is 1,05 mm. or greater, O materials can be used.

NOTE) Refrigerant piping diamenter must not exceed the outdoor unit main piping diamenter.

(1) Piping between outdoor unit and kit combination multi (segments X, Y) Outdoor unit P450 P560 P710 Vapor line (mm.) Ø 28,6 Ø 31,8 Liquid line (mm.) Ø 15,9

(2) Piping between kit combination multi and first branc h (segment A) [*L > 100 m] Total capacity of outdoor units (kW) 90,0 – 142,0 Vapor line (mm.) Ø 31,8 Liquid line (mm.) Ø 19,1 (Ø 22,2)*

(3) Piping between branches (segments B, C, D, E)

Total capacity indoor units

Up to 22.4kW

from 22.4kW to 33.0kW



from 71.0kW to 104kW over 104kW

Vapor line (mm.) Ø 15,9 Ø 22,2 Ø 28,6 Ø 31,8 Ø 38,1 Liquid line (mm.) Ø 9,5 Ø 12,7 Ø 15,9 Ø 19,1

(4) Piping between branch and indoor unit (segments a, b , c, d, e, f) Indoor units P22, 28, 36, 45, 56 P71, 80, 90, 112, 140, 160 P224 P280

Vapor line (mm.) Ø 12,7 Ø 15,9 Ø 19,1 Ø 22,2 Liquid line (mm.) Ø 6,4 Ø 9,5

CAUTION

• Make sure that total extension refrigerant piping l ength is 520 m. or less. • If the refrigerant piping equivalent length exceeds 100 m. use pipes with diameters larger by one rank for

liquid piping only. Example: ø 19.1 � ø 22.2

• This unit uses R410A. Limit pressure of O material pipe with ø 19.1 diameter or larger is insufficient. Be sure to use ½ H or H material pipes with minimum thickness or thicker. For ø 19.1 pipe only, however, as long as the thickness is 1.05 mm. or greater, O materials can be used.

• Do not use a bent pipe with an external diameter of ø 28.6 or larger. • Method of refrigerant piping can be selected from line branching, header branching, and line-header

combined branching. Select the proper method according to the layout of indoor units. • Refrigerant piping length and the height difference between indoor units should be arranged as short as

possible.

• Re-branching after the header branching is not allowed.

47


Line branching

* When total capacity of connected indoor unit exceed 130% of rated capacity, restrict the permissible piping length (actual length) to 100 m.

48

Header branching


49

Line – header combined branching


50

2.9.2 Stand alone installation

Follow the piping specification shown below when installingnew refrigerant piping. When reusing existing piping, confirm that existing piping meets the pipe specification shown in this manual.

� Piping specifications (use the following pipes)

• Piping material: Phosphate deoxidized copper seamless air-conditioning pipe compliant with local technical standard or equivalent.

• Refrigerant pipe specifications: Outer diameter x thickness (mm.) ø 6,4 × 0,8 (O material or OL material) ø 9,5 × 0,8 (O material or OL material) ø 12,7 × 0,8 (O material or OL material) ø 15,9 × 1,0 (O material or OL material) ø 19,1 × 1,0 (1/2 H material or H material)* ø 22,2 × 1,0 (O material or OL material) ø 25,4 × 1,0 (1/2 H material or H material) ø 28,6 × 1,0 (1/2 H material or H material) ø 31,8 x 1,1 (1/2 H material or H material) ø 38,1 x 1,35 (O material or OL material) * For ø 19,1 pipe only, as long as the thickness is 1.05 mm. or greater, O materials can be used. NOTE) refrigerant piping diameter must not exceed the outdoor unit main piping diameter. (1) Piping between outdoor unit and kit combination multi [*L > 100 m]

Outdoor unit P450 P560 P710 Vapor line (mm.) Ø 28,6 (31,8)* Ø 31,8 (38,1)* Liquid line (mm.) Ø 15,9 (19,1)

(2) Piping between branches (segmentesi B, C, D, E) Total capacity indoor units

Up to 22.4kW




from 71.0kW to 104kW

over 104kW

Vapor line (mm.) Ø 15,9 Ø 22,2 Ø 28,6 Ø 31,8 Ø 38,1 Liquid line (mm.) Ø 9,5 Ø 12,7 Ø 15,9 Ø 19,1

(3) Piping between branch and indoor unit (segments a, b, c, d, e, f) Indoor unit P22, 28, 36, 45, 56 P71, 80, 90, 112, 140, 160 P224 P280

Vapor line (mm.) Ø 12,7 Ø 15,9 Ø 19,1 Ø 22,2 Liquid line (mm.) Ø 6,4 Ø 9,5

(4) Piping between outdoor unit and A.H.U.(air handling unit ) Outdoor unit P355 P450 P560 P710

Vapor line (mm.) Ø 28,6 Ø 38,1 Liquid line (mm.) Ø 12,7 Ø 15,9 Ø 19,1

AVVERTENZA

• Make sure that the total extension refrigerant pipi ng legth is 520 m. or less. • If the refrigerant piping length exceeds 100 m., uses diameters larger by one rank indicated in this

manual. Refrigerant piping installation specifications on page 44 for the main liquid and vapor piping. • This unit uses R410A. limit pressure of O material pipe with ø 19.1 diameteror larger is insufficient. Be

sure to use ½ H or H material pipes with minimum thickness or thicker. For ø 19.1 pipe only, however, as long as the thickness is 1.05 or greater, O materials can be used.

• Do not use bent pipe with an external diameter of ø 28,6 or larger. • Method of refrigerant piping can be selected from line branching, header branching, and line-header

combined branching. Select the proper method according to the layout od indoor units. • Refrigerant piping length and the height difference between indoors units should be arranged as short as

possible. • Re-branching after the header branching is not allowed.

51


Line branching


52

Header branching


53

Line – header combined branching


54

AWS line connection

WARNING

• Always refer to AWS installation manual for maintena nce clearance and position of the unit. • Always connect AWS to the designed outdoor unit for AWS. • Never exceed the maximum allowed distance between A WS and GHP. Failure in doing so can

result in malfunctioning of the units and invalidat es the warranty.

55

2.10 Refrigerant charging

ATTENTION

• When charging the refrigerant, accurately measurame nt the length of the piping and

charge the proper amount of refrigerant. If the amo unt of refrigerant is not proper, performace will decline or a breakdown could occur.

• After completion of refrigerant charging, write do wn the installation record on the plate “POINTS FOR INSTALLATION” inside the outdoor unit cont rol box panel. Besides, calculate the refrigerant amount for the whole syst em and write down the oamount on the plate. Calculation formula is shown on the plate. ( write with a permanent marker so that the record does not disappear easily).

2.10.1 Refrigerant charging amount Always check the refrigerant gas factory charge on the unit label before calculating the amount to be added. Calculate the amount of refrigerant to be charged according to the following formula and liquid piping length for aech size of piping.

When the GHP is connected to AWS YOSHI E1:

Charge amount (kg) = (L1 × 0.353)+(L2 × 0.250)+( L3 × 0.170)+(L4 × 0.110)+( L5 × 0.054)+(L6 x 0.022)+QAWS

When the GHP is connected to direct expansion indoor units:

Quantità in kg = (L1 × 0.353)+(L2 × 0.250)+( L3 × 0 .170)+(L4 × 0.110)+( L5 × 0.054)+(L6 x 0.022)+Q de

Where Qde depends on the number of connected indoor units or the size of the AHU according to the table below

Type of indoor units Qde [kg] Qaws [kg]

Direct expansion single inddor unit 5,5 -

Direct expansion multiple indoor unit 6,5 -

Direct expansion air handling unit AHU Riferirsi alle specifiche del costruttore -

Air water system YOSHI AWS E1 - 1,5

2.10.2 Refrigerant charging method

• Place the tank (with the siphon pipe attached) on the refrigerant

scale. • Remove the charging hose from the vacuum pump and

connect it to the tank. • Perform an air purge of the inside of the charging hose from the

tank to the gauge manifold. • Open the valves V1 and V3 and charge the required amount of

refrigerant in the liquid phase. After the charging is completed, close the valves V1 and V3.

CAUTION

When charging the refrigerant, be sure to wear a pa ir of leather gloves. If the refrigerant touches your skin directly, it may cause a frostbite.

L1: liquid piping Ø 22.2 total length (m.) L2: liquid piping Ø 19.1 total length (m.) L3: liquid piping Ø 15.9 total length (m.)

L4: liquid piping Ø 12.7 total length (m.) L5: liquid piping Ø 9.5 total length (m.) L6: liquid piping Ø 6.4 total length (m.)

56

2.11 Notes for branching piping

• Always install line branch pipes to make either “vertical branching” or “horizontal branching” for both vapor and liquid lines.

• Always install header branch pipes to make “horizontal branching” for both vapor and liquid lines.

CAUTION

when connecting the branch pipe, do not bend the main pipe near the connection. If such bending is unavoidable, provide a minimum fo 150 mm. Of straight portion. However, do not use a bent pipe with external diameter of ø 28.6 or larger.

• Do not perform another branching after the header branching.

• When performing header branching, connect the crimp pipe (max 100 mm. from the port) in accordance with the number of indoor units connected.

57

2.12 How to extend exhaust pipe For the correct positioning of the exhaust gas line extension kit refer to national regulations or Local regulations. ALWAYS install a reduction (not supplied with the kit exhaust gas line extension) on the end of the exhaust pipe AISIN GHP outdoor unit before installing the kit itself.

ATTENTION

• Do not extend the exhaust pipe to a location ehere the exhaust gas could potentially enter indoors. If the exhaust pipe is extended to near the intake/exhaust port to the room, window or ventilation port, the exhaust gas could flow in to the room and causes gas poisoning or an accident due to lack oxygen..

• Do not extend the exhaust pipe to an area where fla mmable gas can be produced, flow into, accumulate or leak, or where volatile flammab le materials can be treated. Extension to such locations could result in a fire or an explosion

• Be sure to discharge gas directly to an outdoor are a open to the atmoshere. Accumulated exhaust gas could cause gas poisoning or an accident due lack of oxygen. Install the outdoor unit where adequate ventilation is provided.

• Be sure to discharge the exhaust gas to the atmosph ere where the gas causes no adverse effect to the surroundings. If the exhaust gas is exhausted into the catch basin or ditch, it could be drawn into the room and cause gas poisoning or an accident due to lack of oxygen.

• Be sure to discharge the exhaust gas to a location where the exhaust gas is not directed toward animals or plants. Exposure to the exhaust gas or discharge air could have harmful influence on animals or plants.

• Be sure to maintain the appropriate clearance from the flammable or flame resistant material covering building in accordance with follo wing figure. Inadequate clearance could cause fire.

Distance from the exhaust pipe must be as follows:

Distance from the top end opening of the exhaust pipe muste be as follows:

Try to avoid extending the exhaust pipe in areas where the outside temperature falls to 0°C or less because the inside of the exhaust pipe may freeze.

58

Extended the exhaust pipe according to the following procedure by referring to the figure below.

• Remove the exhaust top from the outdoor unit exhaust port. • Connect the extra sections from the outdoor unit side, and extend the exhaust pipe to the desidered

position following the restriction below:

Total length 15 m Total number of exhaust bends 5

Equivalent bends length 1 m. each

Tilt horizontal section >3%

(inclination towards the drain) Distance between the supports 1,5-2 m

• Attach the exhaust top at the outlet of the extended exhaust pipe paying attention to:

- The angle of the exhaust vent plane shall be vertical to the ground by adjusting the elbow pipes so

that rainwater may not enter the exhaust pipe directly. - Apply silicone caulking material at the lower part of the metal mesh in accordance with the following

figure so that the drain water may not drip from the exhaust (refer to the figure below).

59

2.13 Power supply wiring procedure

2.13.1 Wiring instruction combined installation

60

2.13.2 Wiring instruction stand-alone installation

61

2.14 Summary of electric wiring installation

ATTENZIONE

• Use a dedicated branch circuit. Never use the outdo or unit with other appliances on the

same circuit. If the outdoor unit and other appliances are used on the same circuit, secondary damage could occur due to breaker tripping.

• All electrical installation work must be performed by a certified electrician in accordance with the relevant local and nationa regulations, te chnical standards, and instructions provided in this manual. Improper installation could result in electrical shock, fire or other hazards.

• Provide an electrical leakage breaker with the speci fied capacity for each outdoor unit (sensitivity amperage is 30 mA). If the electrical leakage breaker is not installed, electrical shock could occur.

• Provide an over-current breaker with the specified c apacity for each outdoor unit. If the proper over-current breaker is not installed, overheating, fire or secondary damage due to the breaker tripping could occur.

• Always use the designed cable for wiring. Make sure that the cable is properly connected and fixed so that the outside forces may not be tra nsferred to the terminal connection. Improper connecting or fixing can result in overheating, fire or other hazards.

• Always ground the unit in accordance with the relev ant technical standards. Improper grounding can result in electrical shock.

• Select an “inverter type electric leakage breaker th at will not be affected by high-frequency leakage currents.

2.14.1 Opening for power supply wires / signal wires

62

2.14.2 Wiring example (AC 230V single phase)

63

2.14.3 Direct expansion indoor unit system wiring (AC 230V single phase)

2.14.4 Air water system wiring (AC 230V single phase)

The type of power is always indicated on the nameplate. Always check what kind of power is needed for the proper functioning of the AISIN GHP. Never feed with three-phase current.

64

2.15 Wiring length The wiring length of indoor-outdoor signal wires except the wiring of the remote controller must not exceed the following restriction:

• Longest wiring length: 1.000 m.

• Total wiring length: 2.000 m.

(when using shielded wires, the total wire length is restricted up to 1.500 m.)

SYSTEM EXEMPLE

• In the above system, the longest wiring distance is 900 m. between Ⓐ and Ⓒ, which satisfies the longest wiring length limit of 1.000 m. And the total length, which is the total of 900 m. between Ⓐ and Ⓒ, and 2.000 m. between Ⓑand Ⓓis 1.100 m. This also satisfies the total wiring limit of 2.000 m. The system functions properly only when both the longest wiring length and the total wiring length are within the limit as shown above.

CAUTION

• Be sure to check the longest wiring length and the total wiring length at the time of designing. When the length exceeds the acceptable r estriction range, consider dividing the system or installing DIII – NET extension adapte r (sold separately) additionally.

65

2.16 Branch wiring The following 3 wiring methods are acceptable. • SERIES WIRING

• BUS WIRING (up to 10 branches, re-branching after the branchi s not possible)

• STAR WIRING (up to 10 branches, re-branching after the branchi s not possible)

66

2.17 Various function setting

Address setting method of the indoor and outdoor un its

� The address settind of the outdoor and indoor units is performed automatically.

� When the centralised remote controller is added, set the group address to the indoor units with the standard remote controller. If the standard remote controller is not installed provide that the service center brings a spare one to set the group address on each one unit.

1

Models

AWS Rated Capacity (kW)

COOLING HEATING

E1/E1J Series

8 HP 21,0 23,5

10 HP 26,5 30,0

13 HP 33,5 37,5

16 HP 41,0 47,5

20 HP 52,0 60,0

25 HP 63,5 75,0

� Safety prescriptions

The following symbols are used to indicate important instructions. Always read, understand and follow these instructions carefully.

WARNING

Failure to observe the prescriptions indicated with this symbol could result in serious injury or death.

CAUTION

Failure to observe the prescriptions indicated with this symbol could result in damage to the unit.

This symbol indicates a forbidden action.

This symbol indicates a necessary action.

� Notice for the installer

WARNING

This unit has to be installed by specialised technical personnel. The installation must be performed in accordance with the contents of this manual. If this unit is not properly installed, it will not realize its full performance potential and could cause injury or damage.

This manual contains technical prescriptions, precautions and procedures to install the YOSHI AWS unit properly. It addresses to specialised technical personnel with a basic knowledge of gas heat pumps installation methods. Failure to observe the procedures herein indicated, could result in malfunction and damage to the unit. Before beginning the installation of the YOSHI AWS unit, read and fully under stand the contents of this manual.

After the installation, always call the local AISIN Authorised Service Centre to perform the outdoor and indoor units commission ing.

YOSHI®AWS E1/E1J

Yoshi Air Water System AWS INSTALLATION MANUAL 8 HP-10 HP-13 HP-16 HP-20 HP-25 HP

2

INDEX

Specifications

1 AWS unit specifications ........................... ............................................................................. 3

1.1 Installation prescriptions ................................................................................................... 3

1.2 Parts provided................................................................................................................... 4

2 Before installation ............................... ................................................................................... 4

2.1 Locally procured parts ....................................................................................................... 4

3 Use of water and glycol mixture ................... ........................................................................ 5

4 Installation ...................................... ........................................................................................ 5

4.1 Selecting the location for installation ................................................................................. 5

4.2 External dimensions, hydraulic and refrigerant gas connections ....................................... 6

4.3 Installation space .............................................................................................................. 7

5 Refrigerant pipes ................................. .................................................................................. 8

5.1 Outline drawing of refrigerant piping. ................................................................................ 8

5.2 Piping specifications ......................................................................................................... 9

5.3 Refrigerant gas extra charge ........................................................................................... 10

5.4 Cooling mode ................................................................................................................. 11

5.5 Heating mode ................................................................................................................. 11

6 Electric wire installation ........................ .............................................................................. 11

7 Refrigerant circuit and hydraulic circuit ......... ................................................................... 12

7.1 Wiring with GHP outdoor unit .......................................................................................... 12

7.2 Detailed wiring diagram .................................................................................................. 13

8 AWS Accessories ................................... ............................................................................. 14

8.1 Controller Plus: Control Panel and Probe Temperature Buffer Tank ............................... 14

8.1.1 Control panel ............................................................................................................................................... 14

8.1.2 Probe temperature buffer tank ................................................................................................................... 14

8.2 External probe temperature ............................................................................................ 14

9 Control panel ..................................... ................................................................................... 15

10 AWS Set Point Adjustment .......................... ....................................................................... 16

10.1 Control panel .................................................................................................................. 16

10.2 Setting the offset ............................................................................................................. 17

11 Installation layouts .............................. ................................................................................ 18

11.1 Central storage tank installation ...................................................................................... 18

11.2 Hydraulic separator installation ....................................................................................... 18

11.3 Single pump installation .................................................................................................. 18

11.4 HVAC installation layout AWS E1 ................................................................................... 19

11.5 HVAC installation E1 with proportional distribution of consumption ................................. 20

11.6 HVAC installation AWS E1J variable flow rate no hydraulic separator (AHU) ................. 21

11.7 HVAC installation AWS E1J variable flow rate with hydraulic separator (fan coil) ........... 22

12 Troubleshooting (reference) ....................... ........................................................................ 23

Tecnocasa S.p.A. declines any responsibility for any damage whatever caused by improper use of the unit and/or non compliance with the information contained in this manual. Specifications, drawings and technical information in this manual are subject to change without notice.

Deu

tsch

3

All versions AWS

8HP-E1 (E1J)

AWS 10HP-E1

(E1J)

AWS 13HP-E1

(E1J)

AWS 16HP-E1

(E1J)

AWS 20HP-E1

(E1J)

AWS 25HP-E1

(E1J) Capacity code of the connected GHP outdoor unit P224 P280 P355 P450 P560 P710

Rated cooling capacity∗ kW 21,0 26,5 33,5 41,0 52,0 63,5 Water temperature out - [in] °C 7 – [11] 7 – [12] 7 – [12] 7 – [12] 7 – [12] 7 – [12] Rated heating capacity ∗∗ kW 23,5 30,0 37,5 47,5 60,0 75,0

Water temperature out - [in] °C 45,5 – [41] 45,5 – [40] 45,5 – [40] 45,5 – [40] 45,5 – [40] 45,5 – [40] Flow rate m3/h 4,5 4,5 6,0 7,5 9,5 12,0

Capacity modulation rate cooling (min-max) kW 10,0-21,0 10,0-26,5 10,0-33,5 17,0-41,0 17,0-52,0 17,0-63,5 Capacity modulation rate heating (min-max) kW 13,0-23,5 12,0-30,0 12,0-37,5 19,8-47,5 19,8-60,0 19,8-75,0

19.8-75.0

Power supply∗∗∗ V/Ph/Hz 230/1/50 Power consumption kW 0,84 1,1

Starting current A 10 Available static pressure kPa 80 80 60 100 80 60

Version without Pump (AWS E1J)

Power supply V/Ph/Hz 230/1/50 Starting current A 1,5

Drop pressure plate heat exchanger kPa 33 33 46 22 33 46

Water circuit Water pipes connection Inch 2

(Each AWS unit is delivered with 2” nipless fittings to be installed if necessary) Primary circuit pipes diameter Inch 2 or higher

(Each AWS unit is fitted with a 2” Y-shape filter to be installed on the primary circuit)

Refrigerant circuit

Refrigerant gas connection (gas – liquid) mm 28,6 –12,7 28,6 – 18,0

GHP – AWS pipes diameter (gas – liquid)

mm 19,1 – 9,5 ∗∗∗∗ (12,7)

22,2 – 9,5 ∗∗∗∗ (12,7)

25,4 – 12,7 ∗∗∗∗ (15,9)

28,6 – 12,7 ∗∗∗∗ (15,9)

28,6 – 15,88 ∗∗∗∗ (19,05)

35 – 15,88 ∗∗∗∗ (19,05)

External dimensions and

weight

Height mm 915 Width mm 1020 Depth mm 710

With Pump/Without Pump kg 164/153 204/177 Connectable GHP outdoor units Each AWS unit can be connected with a single AISIN GHP outdoor unit

∗ Rated cooling capacity is measured according to the following conditions: water outlet temperature 7°C; outdoor temperature 35°C DB ∗∗ Rated heating capacity is measured according to the following conditions: water outlet temperature 47°C; outdoor temperature 7°C DB / 6°C WB ∗∗∗ A version fitted with 230V, single phase, 60 Hz is available upon order. ∗∗∗∗ If the distance between GHP and AWS exceeds 40 meters, install a pipe with the diameter indicated in brackets.

1.1 Installation prescriptions

CAUTION

Always foresee the installation of an emergency rel ief valve and a properly dimensioned expansion vessel. These devices are not built in the AWS unit. Where the storage tank should be installed lower th an the AWS unit, foresee the installation of a jolly valve at the higher point o f the water piping. Failure to observe these prescriptions could result in malfunction and/or damage to the unit.

Always foresee the installation of a buffer tank, f itted with anti stratification pipes, which size should be adequate to the AWS unit capacity. Failure to observe these prescription could result in malfunction and/or damage to the unit.

Always check that the Y-shape water filter (supplie d with the unit) is installed on the primary circuit return pipe. In case of multi u nits plants, install one filter each AWS unit. Install the filter to not less than 50 cm from suction of the pump. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

WARNING

Welding, refrigerant gas and water piping installat ion should be always performed by specialised technical personnel in acc ordance with instructions and prescriptions mentioned in the present manual. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the YOSHI AWS unit.

1 AWS unit specifications

4

1.2 Parts provided The following parts are provided with the YOSHI AWS unit. Name

Installation

manual Control box

wiring diagram 2” Y-shape filter

For water pipe [gaskets] 2” brass nipless

[gaskets] where provided Quantity 1 1 1 - [2] 2 - [2]

Location Inside the control panel

Inside the unit near the water connections

Note Always store the manuals in a dry and safe place

Refer to the prescriptions of this manual for the installation of the accessories

2.1 Locally procured parts The following items are required for installing the YOSHI AWS unit.

Part Application

Anchor bolt For installing the AWS unit on the ground (M8X4)

Washer, Nuts For installing the AWS unit on the ground (φ8X4)

Ant vibrant carpet For installing the unit on metal bars or on the roof.

Copper pipe and fittings for refrigerant gas

Refrigerant gas piping (materials and procedures are described in the GHP outdoor unit installation manual)

Steel pipe and fittings for water

Water piping (materials and procedures are described in the present manual)

Insulation For refrigerant gas and water pipe insulation

Electrical wires AWS unit power supply, ground wiring, communication and accessories wiring (proper size and wire specifications are described in the GHP outdoor unit installation manual)

R410a refrigerant gas, precision scale and gauge manifolds

Refrigerant circuit extra charge (refrigerant extra charge is described in the present manual)

Oxy acetylene welding kit Gas bottles, nozzle and copper bars to weld refrigerant pipes

Nitrogen Bottle Refrigerant gas leakage test

(the procedure is described in the GHP outdoor unit installation manual)

Vacuum pump Vacuum suction

(the procedure is described in the GHP outdoor unit installation manual)

Pipe cutter Refrigerant gas piping installation

WARNING

Never use parts which are not compliant with those listed in the present manual. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

The installation of the unit must comply with natio nal and local codes. Failure to observe this prescription could result in illegal act. The manufacturer specifically disclaims any liabili ty whatsoever for any claims by any party if any of the procedures in this Installation Manual h ave not been followed. Failure to observe this prescription makes the warranty no longer valid.

2 Before installation

5

Use mixtures of water and antifreeze fluid to lower the freezing point of water. The liquid most commonly used as antifreeze is ethylene glycol. The table shows the reduction factors of the cooling capacity and the capacity of the pump of the AWS as a function of the water temperature and percentage by weight of glycol in the mixture.

Water Glycol Reduction factor of the cooling capacity

Reduction factor of the pump flowrate

°C % kg - - -2 5 0,995 0,99 -4 10 0,990 0,98 -6 15 0,985 0,96 -9 20 0,980 0,94 -12 25 0,975 0,92 -15 30 0,970 0,90 -19 35 0,965 0,88 -23 40 0,960 0,86 -29 45 0,955 0,83 -35 50 0,950 0,80

4.1 Selecting the location for installation

WARNING

• The unit MUST NOT be installed where flammable gas i s generated, accumulated or handled. Failure to observe this prescription could result in damage of the unit, injury, fire or explosion.

• The AWS unit is for outdoor and indoor installation. Read the present manual carefully to select a proper installation location. Make sure ma intenance space is provided around the unit.

• If the unit is installed at high location, provide a safe access by installing ladders or railings for the operator.

• Always install the AWS unit in an area where its smooth operating noise and small vibration won’t be a disturb for the neighbours, particularly in residential areas. Comply to local standards where prescribed.

• Always install the AWS unit in a level location where rainwater cannot accumulate. Provide proper drain routes.

• Always install the AWS unit in a location where it won’t be exposed to strong winds. Provide proper anchor bolts.

• The AWS unit might cause slight interference with other electrical equipment, such as televisions, radios, computers and telephones. Provide proper clearances.

• If the AWS unit is installed in a region with heavy snowfall, install a snow protection hood. The base for the unit is high enough to avoid accumulation of snow in front of the body panels.

• Allocate the route for loading/unloading the unit, materials and parts for maintenance at the installation site.

3 Use of water and glycol mixture

4 Installation

6

4.2 External dimensions, hydraulic and refrigerant gas connections The table below shows the diameters of the water connections, refrigerant, piping diameters and their position in the various models of AWS.

TECHNICAL DATA

Water connections Inch 2

Water pipe connections Inch

2 or higher Anti vibration joints should be foreseen at the water connections in some kind of installation layouts.

The supplied Y strainer must always be installed with a minimum distance of 50 cm from the AWS intake connection

Refrigerant gas connections mm

(8 – 10 – 13) HP (16 – 20 – 25) HP Liquid Gas Liquid Gas 12,7 28,6 18,0 28,6

Refrigerant pipes diameter mm 8 HP 10 HP 13 HP 16 HP 20 HP 25 HP

Liq. Gas Liq. Gas Liq. Gas Liq. Gas Liq. Gas Liq. Gas 9,5 19,1 9,5 22,2 12,7 25,4 15,9 28,6 15,9 28,6 15,9 35,0

Hydraulic and refrigerant gas connection positions

Liquid (16-20-25) HP (8-10-13) HP Gas (16-20-25) HP (8-10-13) HP

Water (8-10-13-16-20-25) HP

A B C D E

mm 130 210 290 375 525

Dimensions (W -H - D) mm 710 -915 - 1020

A

B

C

D

E

915

710

1020

940

YOSHI

450

710

450

FRONT VIEWSIDE VIEWREAR VIEW

Liq.Gas Water

7

4.3 Installation space

Clearances for maintenance and inspection operations are described in the tables below.

Always provide ample space for inspecting and maintaining the piping for the refrigerant gas and for the water.

Front view Top view

YOSHI

1 m or more

Always provide 1 m or more above the AWS unit

<Single unit installation >

Always leave at least 500 mm on the right side (viewed from coupling tubes AWS)

<Overlapped multiple units installation>

YOSHI

YOSHI

Water

Water

When the units are overlapped, route the pipes of the upper unit so that all the body

panels of the lower unit can be disassembled.

<Multiple units installation>

Always leave at least 500 mm on the right side

(viewed from coupling tubes AWS)

CAUTION

• The minimum installation spaces are necessary to pr ovide room for air circulation, inspection and maintenance of the AWS unit. Failure to observe this prescription could result in injury to the maintenance personnel and damage to the unit.

• When more units are installed in the same location, make sure that nearby walls, pipes or other objects, are not obstructions for maintenance operations. Maintenance space is described in the table below.

8

5.1 Outline drawing of refrigerant piping.

WARNING

All the welding operations on the AWS – GHP refrigera nt gas piping must be always performed in accordance with instructions and prescriptions ment ioned in the AISIN GHP installation manual (brazing with nitrogen flow). Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the YOSHI AWS unit.

5 Refrigerant pipes

9

5.2 Piping specifications

WARNING

YOSHI AWS refrigerant gas connections diameter differs from the ones prescribed for the refrigerant gas line to the AISIN GHP outdoor unit. T herefore, install proper adapters (not supplied).

Select the proper AWS – GHP pipe diameter according to the table below.

YOSHI AWS AISIN GHP

Unit

Installation item Diameter x Thickness (mm) Acceptable piping

length (m)

(relative/actual)

Max. height difference(m)

Gas Liquid Liquid (*) GHP

ground GHP roof

Compressor oil

GHP Multi Type AWS E1/E1J

[8 HP] 19,1x1,0 9,5x1,0 12,7x1,0

70/60 20 25 NL10

[10 HP] 22,2x1,0 9,5x 1,0 12,7x1,0 [13 HP] 25,4x1,0 12,7x1,0 15,9x1,0 [16 HP] 28,6x1,5 15,9x1,0 19,05x1,0 [20 HP] 28,6x1,5 15,9x1,0 19,05x1,0 [25 HP] 35,0x1,5 15,9x1,0 19,05x1,0

(*) If the distance between GHP and AWS exceeds 40 meters use a liquid tube of bigger diameter as indicated in the table. The refrigerant gas line for the YOSHI AWS unit must be designed and installed in accordance with the prescriptions here under listed.

Layout example (in case of AWS connection) If there is a height difference

between the locations of indoor and outdoor units, be sure to apply “trap

piping” on the vapour line within every 10 m as illustrated.

10 m

A

L

Outdoor unit

f

AWS

H

Piping length

Maximum piping length (L) (Relative/Actual)

L = A 70/60m or less

Height difference

Height difference between indoor unit and outdoor unit (H)

When GHP outdoor unit is higher than AWS unit

25 m or less

When GHP outdoor unit is lower than AWS unit

20 m or less

CAUTION

It is forbidden to connect direct expansion indoor units and YOSHI AWS to a single AISIN GHP outdoor unit simultaneously. The YOSHI AWS can be only connected to a specific AISIN GHP outdoor unit for AWS with the same capacity.

WARNING

• Never exceed the maximum accepted distances when co nnecting the YOSHI AWS to the

AISIN GHP outdoor unit. Failure to observe this prescription makes the warranty no longer valid and could result in malfunctioning of the YOSHI AWS unit.

10

5.3 Refrigerant gas extra charge

WARNING

Accurately measure the length of the piping and cha rge with the proper amount of refrigerant gas. Failure to observe this prescription could result in malfunctioning of the YOSHI AWS unit. When charging the refrigerant gas, make sure to wea r proper protective gloves. Refrigerant gas leakages can cause frost bites.

• Always charge the refrigerant as a liquid in the tank. In case of charging as a gas may cause a

compositional change of the refrigerant, and could result in a performance decline or a breakdown.

• Always use a refrigerant scale when charging the refrigerant. Using a charging cylinder may cause a compositional change of the refrigerant, could result in a performance decline or a breakdown.

• To avoid cross-contamination with other oil types, make sure to separate maintenance tools according to the type of refrigerant used. In particular, never use the gauge manifold and charging hose with other refrigerants than R410a.

After confirming the factory charge on the AISIN GHP label, use the following equation to determine the necessary extra amount of refrigerant gas. Always refer to the liquid pipe lengths and diameters only.

Extra chrg (kg) = (L0 x 0.250) + (L1 × 0.170) + (L2 × 0.110) + (L3 × 0.054) + QAWS

The value of the variable parameter Q depends on the capacity of the AISIN GHP outdoor unit connected to the YOSHI AWS. Use the table below as reference.

Outd oor unit Installation type Q (kg)

8 – 10 – 13 HP QAWS 0

16 – 20 – 25 HP QAWS + 1,5

CAUTION

The refrigerant extra charge must be done in accord ance with the procedures described in the AISIN GHP installation manual. Failure to observe this prescription makes the warranty no longer no longer valid and could result in malfunctioning of the YOSHI AWS unit.

L0: Liquid pipe Ø 19.0 total length (m) L1: Liquid pipe Ø 15.9 total length (m) L2: Liquid pipe Ø 12.7 total length (m) L3: Liquid pipe Ø 9.52 total length (m)

11

5.4 Cooling mode The refrigerant (R410A) processed by the GHP flows through electronic expansion valve and enters the lower part of the AWS unit heat exchanger at low pressure. The gas evaporates in the plate heat exchanger by taking heat from the counter current water flow. It goes back to the GHP as overheated steam. The outdoor unit fans create an air flow through the heat exchanger and thus the refrigerant can condense. At the same time, the water coming from the buffer tank is cooled and pumped again into the primary circuit by the AWS built in pump. Flow switch, pressure switch and anti freeze thermo sensor overlook the water temperature never to drop inside the heat exchanger. In fact, water may freeze and the heat exchanger can be damaged.

5.5 Heating mode The refrigerant (R410A) processed by the GHP enters the upper part of the AWS unit heat exchanger as high pressure overheated steam. The gas condenses in the plate heat exchanger by ceasing heat to the co current water flow. It goes back to the GHP as high pressure liquid, through the bypass pipe. The two outdoor unit expansion valves divide the return flow, reducing its pressure. The GHP manages the evaporation through the heat exchanger and the heat recovery. At the same time, the water coming from the buffer tank is heated and pumped again into the primary circuit by the AWS built in pump.

6 Electric wire installation

1) Driver expansion valve 2) Check valve 3) Electronic expansion valve 4) Water inlet temperature probe 5) Water outlet temperature probe 6) Plate heat exchanger 0)

7) Water pressure difference switch 8) Air vent valve 9) Flow switch 10) Pump (not included in the version E1J) 11) Pressure switch expansion valve

12

7.1 Wiring with GHP outdoor unit Power supply specifications are always mentioned on the YOSHI AWS product label. Always check the power supply before installing the unit. Always perform the wiring in accordance with the prescriptions listed in the paragraph 0 of the present manual.

WARNING

• NEVER connect the YOSHI AWS unit to a common circuit with other appliances. Use a

dedicated branch circuit protected by an earth leak age breaker. Failure to observe this prescription could result in malfunctioning of the unit and hazards for people and/or things.

• NEVER ground the unit by connecting the wires to water or gas piping or to a lightning rod.

• NEVER switch on the power supply before the final comm issioning is performed by the AISIN Authorised Service Centre. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the YOSHI AWS unit.

• All electrical installation work must be performed by specialised technical personnel in accordance with the local and national installation standards. A declaration of conformity must be provided by the installer. Failure to observe this prescription could result in electrical shock, fire or other hazards.

• Switch off the main circuit breaker or power meter during the electrical installation work of the YOSHI AWS unit.

• Always use the designated cable for wiring, includi ng the ground wiring, according to the national standards.

• Always check the power supply specifications on the YOSHI AWS unit. Failure to observe this prescription could result in malfunction and/or damage to the YOSHI AWS unit.

I – I: communication line outdoor unit – AWS. O – O : communication line outdoor unit – outdoor unit (NOT AVAILABLE WITH AWS). Q1 – Q2: electrical terminals present only on GHP (16-20-25) HP. Terminals can be used only for direct expansion.

NEVER SUPPLY THE UNIT WITH THREE PHASE POWER

7 Refrigerant circuit and hydraulic circuit

13

7.2 D

etailed wiring diagram

POWER SUPPLY 230 VL

N

GROUNDING

GHPCHK: General alarm signal outdoor unit GHP

ALOUT: General alarm signal outdoor unit (dry contact)

PT3: Outside temperature probe

CAP-/CAP+: Current signal power control 4-20 mA DC

0-12-12: Power supply control panel "controller plus" (12V)

CANH/CANL/CANG: Communication line panel "controller plus"

SIGNAL CABLE2 X 0.75-1.25mm ²

GHP-AWS CONNECTION CABLE2 X 0.75-1.25mm ²

GHP POWER WIRE2 X 2.5 mm ² (min section)

ELECTRICAL LEAKAGEBREAKER (20A)(not supplied) ELECTRICAL LEAKAGE

BREAKER (16A)(not supplied)

AWS POWER WIRE2 X 2.5 mm ² (min section)

GHP TERMINAL BLOCK

(It is located in the rear side of the GHP)

AWS TERMINAL BLOCK

(It is located in the AWS electric box)

GROUNDING

L-N: Power supply

CHECK: General alarm dry contact

CONTACT H/C: Heat/Cool selection signal

F1-F2: GHP AISIN - AWS YOSHI communication

P. Kit: WKIT pump switch (optional)

Q1-Q2: Outdoor units communication. "Installation

combined" Exp. direct. Only on GHP (16-20-25) HP

MP: Power supply external pump or zone valve(only for AWS E1J version). Max 10 A contacts

REM: AWS remote ON/OFF selection

REM1: Heat/Cool remote selection

POWER SUPPLY 230 VLN

SET-/SET+:Segnale in corrente 4-20 mA DCper regolazione temperatura set point

485+/485-: Modbus

MP

14

8.1 Controller Plus: Control Panel and Probe Temperature Buffer Tank

8.1.1 Control panel Control panel for the remote management of the AWS with which is possible to control and management of a single module from a remote location. The shielded cable connecting the panel to the module has a maximum length of 60 meters. The panel allows you to control and modify the operating parameters of the module (for details regarding the management of the module with the remote control panel, refer to the AWS "service manual").

8.1.2 Probe temperature buffer tank The probe is used to stop the pump when the AWS reaches the set point temperature. It must be installed on the tank and connected to the AWS as shown in the drawing.

8.2 External probe temperature The probe allows adjustment of the flow temperature of the water according to the temperature of the outside air by means of a 4-20 mA current signal.

8 AWS Accessories

15

WARNING

• NEVER change the factory settings (cooling and heating set point) of the water

thermostat. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

• NEVER disconnect or bypass the YOSHI AWS built in safety devices for a forced operation of the unit. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

• NEVER change the factory settings of the remote contro ller fitted in the control panel. Failure to observe this prescription could result in malfunction and/or damage to the unit.


• Some operation parameters of the YOSHI AWS can be chang ed under request to the AISIN Authorised Service Centre. Failure to observe this prescription makes the warranty no longer valid.

• In case of multiple units installations it is possi ble to manage a proportional distribution of the capacity by an external optional device.

• The built in water thermostat always indicates the return temperature of the primary circuit. NEVER SET THE VALUE BELOW 8°C.

The YOSHI AWS control panel is represented below. In case of AISIN GHP outdoor unit malfunction, the error code will be displayed on the remote controller fitted in the YOSHI AWS control panel. Check the failure type on the AISIN GHP installation manual.

The water thermostat factory settings are: - COOL mode: T set cool = 8°C - HEAT mode: T set heat = 44°C

The YOSHI AWS has the following safety built in devices: - Pressure difference switch: the AISIN GHP outdoor unit stops in case of missing pressure

difference between inlet and outlet of the pump. - Flow switch: the AISIN GHP outdoor unit stops in case of insufficient water flow in the primary

circuit. - Antifreeze thermostat: In the summer the AISIN GHP outdoor unit stops in case of water

temperature in the primary circuit below +5°C. In the winter the pump is started when the water temperature is below +5 °C and, if necessary, also the GHP is started.

- Pump overload switch: the YOSHI AWS pump stops in case of overheating of the pump itself.

9 Control panel

16

10.1 Control panel

The unit AWS YOSHI has the possibility to vary the capacity delivered, in a range between 25% and 100% of rated power, as a function of the return water temperature on the primary circuit. The modulation of the capacity is adjusted according to a proportional band. Just adjust the temperature set point on the user menu on the control panel, that is the parameters "Tset" and the proportional band width (Range modulation parameter). As the return water temperature on the primary approaches the set point, the AWS capacity is reduced of 25%. Once the set point is reached and exceed, the system makes 6 consecutive temperature checks, one every each 10 seconds. If, during these controls, the temperature never goes below the set point the AWS stops. If the optional "Plus Controller" has been installed, once the set point has been reached and the AWS stops, the primary circulation pump halts. Otherwise, the primary circulation pump continues to run, nevertheless the AWS system is in stand-by. Example of modulation in heating: The set point temperature in heating, ie the parameter "Tset heat", may vary in a range between 30°C and 48°C. The factory settings are: Tset heat = 44°C; Modulation Range = 5°C The table below shows the method of variation of the capacity and a numerical example.

AWS Capacity [%]

Tset heat [°C] Modulation Range [°C]

Low Temperature Modulation [°C]

Outlet Temperature [°C]

100

A ∆T

A - ∆T

A + 1 75 (A - ∆T) + (∆T•0,25) 50 (A - ∆T) + (∆T • 0,5) 25 (A - ∆T) + (∆T•0,75)

Numerical example on the minimum temperature set po int 100

30 5

25

31 75 26,25 50 27,5 25 28,75

Numerical example on the maximum temperature set point 100

48 7

41

49 75 42,75 50 44,5 25 46,25

10 AWS Set Point Adjustment

17

Example modulation in cooling: The set point temperature in cooling, ie the parameter "Tset cool", may vary in a range between 6°C and 15°C. The factory settings are: Tset cool= 8°C; Modulation Range = 5°C

AWS Capacity [%]

Tset cool [°C] Modulation Range [°C]

Max. Temperature Modulation [°C]


100

A ∆T

A + ∆T

A - 1 75 (A + ∆T) - (∆T•0,25) 50 (A + ∆T) - (∆T • 0,5) 25 (A + ∆T) - (∆T•0,75)


6 5

11

5 75 9,75 50 8,5 25 7,25


15 7

22

14 75 20,25 50 18,5 25 16,75

10.2 Setting the offset The unit YOSHI AWS allows you to adjust the offset of the set point temperature, that is the return water temperature on the primary circuit. The parameters "Tset Offset " can be changed in the user menu, (please refer to the AWS service manual). If the optional "Controller Plus" has been installed, of the offset measurement will be made by its active probe, installed on the buffer tank. The factory settings are: Heat Tset Offset = 2°C Cool Tset Offset = 2°C

18

CAUTION

The installation layouts below are just representat ive of suggested possibilities. Always refer to technical qualified personnel for d esigning. Further information is available under request by AISIN technical department or on the website www.aisin.it .

11.1 Central storage tank installation This layout is recommended by the manufacturer for fan-coil installations. to optimise the operation of the AISIN GHP. When choosing this layout always make sure that the water flow of the primary and the secondary circuits are balanced. Moreover, the storage tank must be provided with anti stratification pipes.

11.2 Hydraulic separator installation When choosing this layout, make sure that the static pressure of the water pump fitted in the YOSHI AWS unit is enough to win the total pressure drop of the primary circuit. In this case it is possible to install horizontal storage tanks.

11.3 Single pump installation This layout is recommended by the manufacturer for Air Handling Unit (AHU) installations. Make sure that the static pressure of the water pump fitted in the YOSHI AWS unit is enough to win the total pressure drop of the whole circuit.

11 Installation layouts

19

11.4 HVAC installation layout AWS E1

20

11.5 HVAC installation E1 with proportional distribution of consumption

21

11.6 HVAC installation AWS E1J variable flow rate no hydraulic separator (AHU)

22

11.7 HVAC installation AWS E1J variable flow rate with hydraulic separator (fan coil)

23

WARNING

• NEVER stop the GHP – AWS system by switching off the pow er supply during the

operation. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

• NEVER switch on the YOSHI AWS power supply after switchin g on the GHP outdoor unit. Failure to observe this prescription could result in malfunction and/or damage to the unit.

The table below shows all the possible failures indicated directly by the YOSHI AWS control panel.

ALARM TYPE ALARM CODE POSSIBLE CAUSES SOLUTIONS

Flow switch alarm A1S1 • Y-filter clogged • Capacity insufficient

• Clean the Y-filter

• Check the pressure in the hydraulic circuit

• Check the flow switch

Pressure difference switch alarm

A2S1 • Air in the system • Pump malfunction

• Remove the air

• Replace the pump • Check the pressure differential switch

(compare the state with the flow switch)

GHP Alarm A3S1

• Check the code displayed on the GHP. Press UP for the current alarms and DOWN for those in STAN-BY

Flowswitch tamper alarm A4S1

• Check the wiring of the flowswitch.

• Check the operation of the flowswitch. • Check the layout of plant (other

pumps make circulate water when not expected

Antifreeze alarm A5S1

• Check the operation of the pump, the flow switch and pressure differential switch

• Verify that the offset values in summer operation are not excessive

• Check the temperature probes and their wiring

Return temperature probe alarm

A6S1 • Check the probe and the wiring

Antifreeze temperature probe alarm


Expansion valve driver alarm

A8S1 • Use the Carel display. Press "help"

and check which component is in alarm

Maintenance period warning

A13S1

The heat pump is about to reach the 10.000 hours of operation. Need for routine maintenance.

• Contact the service centre Aisin

Maintenance period alarm

A14S1

The heat pump has reached 10.000 hours of operation. Need for routine maintenance.

• Reset the hours of operation (See page 82, service manual paragraph 13.3 "Reset hours of operation").

12 Troubleshooting (reference)

24

Winter antifreeze protection

A15S1

the water temperature inside the AWS dropped below the minimum threshold

• Check water circulation and make sure the unit is not exposed to severe outdoor conditions.

GHP starting failure A18S1 • Check T1T2 setting • Check wiring 15 - 16 • Check C7 – NO7 relay

25

The table below shows all the error codes displayed on the remote controller fitted in the AWS control panel. In case of malfunction contact the AISIN Authorised Service Centre that usually maintains the GHP outdoor unit.

R/C AWS

Blinking indication (ON doesn’t blink)

(OFF led off)

GHP outdoor

unit display

Type of failure Possible cause Error code

Led ON/OFF

TEST Disp.

Unit No.

A0 X X X 63-n External input • External protection input signal stops the unit • Remote controller local setting failure

A1 X X X 20-n Indoor unit PC board

• PC board defective • EEPROM setting error

A3 X X X 95-n Drain lines

- AWS flow switch

• Direct Expansion version – indoor unit drain pump malfunction .

• AWS version – flow switch or antifreeze thermostat switched off.

A6 X X X 15-n Indoor unit fan motor

• Fan motor blocked • Harness disconnection

A7 ON X X 35-n Indoor unit swing

flap motor • Swing flap motor malfunction • Cam mechanism failure


• LEV malfunction • Harness disconnection

AF ON OFF X 30-n Drain pipe • Improper drain piping installation (inverse draft) • Pipe clogged

AH ON OFF X 31-n Air cleaning device

• Indoor unit circuit boar malfunction • Air cleaning device failure (optional)

AJ X X X 22-n Capacity setting • Capacity setting failure • Missing capacity setting adapter (replacement of PCB)

C4 X X X 18-n

Indoor unit temperature

sensors

• Heat exchanger temperature sensor failure • Improper harness connection

C5 X X X 19-n • Gas pipe temperature sensor failure • Improper harness connection

C9 X X X 97-n

• Direct Expansion version - Intake air temperature sensor failure

• AWS version – Resistors group failure • Improper harness connection

CA X X X 98-n • Exhaust air temperature sensor failure • Improper harness connection

CJ ON OFF X 17-n R/C temperature

sensor • R/C temperature sensor failure • Improper harness connection

U3 X X X - Test run • Test run operation

U4 X X X - Communication • Outdoor unit power supply OFF • Outdoor unit – indoor unit transmission error

U5 X X X 1-n Communication • Duplicating main remote controller connection

• Transmission error

OFF ON OFF - Remote controller PC board

• Remote controller PC board failure • Remote controller setting failure

U8 X X OFF - • Transmission error between main and sub remote controller

U9 X X X - Communication • Transmission error between two indoor units • Transmission error between outdoor and indoor unit

UC ON ON ON 36-n Central remote

controller

• Address duplication of central remote controller • Air-net address duplication of indoor units

UE X X X 23-n • Transmission error between indoor unit and central remote controller

UF X X X 24-n Communication

• Communication error between indoor and outdoor unit • Improper wiring

UH X X X - • Indoor unit address setting failure

E1 X X X 40-0∼2

Outdoor unit PC board

• EEPROM failure or program failure

X X X 84-3,4 • Outdoor unit PC board malfunction • Transmission error between microcomputer

E3 X X X 86-0 Operation failure

• Refrigerant High pressure alarm

E4 X X X 88-0 • Refrigerant Low pressure alarm

E7 X OFF X 86-10∼23 Outdoor unit fan • Heat exchanger fan (1,2,3) failure • DCBL board failure

EA X X X 57-0 4-way valve • 4-way valve failure • Harness disconnection

EC X X X 80-0 Operation failure • Engine coolant overheating (temperature >105°C)

EH X X X 80-10∼30 Engine coolant

pump • Engine coolant pump failure • DCBL board failure

26

R/C AWS


(OFF led off)

GHP outdoor

unit display

Type of failure Error code Possible cause

Error code

Led ON/OFF

TEST Disp.

Unit No.

F3 X X X 91-0 Operation failure

• Compressor discharge temperature too high (>120°C)

F4 X X X 87-0,2 • Compressor intake temperature too high (> 40°C)

FE X X X 81-0 Engine oil • Abnormal engine oil pressure • Engine oil level insufficient

FF X X X 58-0 Compressor oil • Refrigerant oil supply valve failure • Improper harness connection

FJ X X X 47-0 Catalyser • Catalyser overheating (where provided)

H3 X X X 76-0 High pressure

switch • High pressure switch malfunction • Improper harness connection

H4 X X X 88-2 Low pressure switch

• Low pressure switch malfunction • Improper harness connection

H9 X X X 61-0

Outdoor unit temperature

sensors

• Outdoor temperature sensor malfunction • Improper harness connection

H9 X X X 61-1 • Outdoor temperature sensor short circuit

HC X X X 70-0 • Engine coolant temperature sensor malfunction • Improper harness connection

HC X X X 80-1 • Engine coolant temperature sensor short circuit

HJ X X X 80-2 Engine coolant • Engine coolant level insufficient

HF X OFF X EE-0 Maintenance • Periodic maintenance alert

J3 X X X 78-1∼5


sensors

• Compressor discharge temp sensor disconnected

X X X 91-2∼7 • Compressor discharge temp sensor short circuit

J4

X X X 54-0 • Super cooling heat ex. temp. sensor disconnected

X X X 54-1 • Super cooling heat ex. temp. sensor short circuit

X X X 55-0,1 • Accumulator outlet temp. sensor disconnected

X X X 55-2,3 • Accumulator outlet temp. sensor short circuit

J5 X X X 53-0,1 • Compressor intake temp. sensor disconnected

X X X 53-2,3 • Compressor intake temp. sensor short circuit

J6 X X X 65-0 • Heat exchanger liquid pipe temp. sensor disconnected

• Improper harness connection X X X 65-2 • Heat exchanger liquid pipe temp. sensor short circuit

J7

X X X 66-0 • Sub heat exchanger liquid pipe temp. sensor disconnected

X X X 66-1 • Sub heat exchanger liquid pipe temp. sensor short circuit

J8 X X X 67-0 Outdoor unit

temperature sensors

• Outdoor liquid pipe temp. sensor disconnected

X X X 67-2 • Outdoor liquid pipe temp. sensor short circuit

JA X X X 73-0,1 Outdoor unit pressure sensors

• High pressure sensor malfunction

JC X X X 88-4 • Low pressure sensor malfunction

JE X X X 71-0 Oil pressure sw. • Oil pressure switch disconnected

JJ

X X X 72-0 Outdoor unit temperature

sensors

• Engine room temp. sensor disconnected

X X X 72-1 • Engine room temp. sensor short circuit

X X X 72-6 • Catalyser temp. sensor disconnected

LE X X X 75-1∼3 Igniter voltage • Igniter voltage too low or too high

LF X X X 84-0 Operation failure

• Engine start failure – missing supply gas

LJ X X X 75-0 • Unwanted engine stop

P8 X X X 74-1∼4 74-6

82-0∼1 Engine • Insufficient starting engine speed (starter failure)

• Abnormal engine speed (gas mixer failure)

PE X X X 74-7 Gas valves • Supply electro magnetic gas valves failure

PF X X X 60-0 Starter • Starter failure

U0 X X X 88-5 Ref. Piping • Refrigerant gas empty

U7 X X X 4-0∼6 Communication • master / slave outdoor unit communication failure

UA X X X 43-0,1 44-n

Indoor unit number

• Over connection of capacity units • Too many indoor units connected

27

NOTE ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. …………………………………………………………………………………………..

28

………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. ………………………………………………………………………………………….. …………………………………………………………………………………………..

1

Models

AWS Rated Capacity (kW)

COOLING HEATING

E1J Series

16 HP + 16HP 82,0 95,0

16 HP + 20 HP 93,0 107,5

20 HP + 20 HP 104,0 120,0

16 HP + 25 HP 104,0 122,5

20 HP + 25 HP 115,0 135,0

25 HP + 25 HP 126,0 150,0

� Safety prescriptions

The following symbols are used to indicate important instructions. Always read, understand and follow these instructions carefully.

WARNING

Failure to observe the prescriptions indicated with this symbol could result in serious injury or death.

CAUTION

Failure to observe the prescriptions indicated with this symbol could result in damage to the unit.

This symbol indicates a forbidden action.

This symbol indicates a necessary action.

� Notice for the installer

WARNING

This unit has to be installed by specialised technical personnel. The installation must be performed in accordance with the contents of this manual. If this unit is not properly installed, it will not realize its full performance potential and could cause injury or damage.

This manual contains technical prescriptions, precautions and procedures to installa the YOSHI AWS unit properly. It addresses to specialised technical personnel with a basic knowledge of gas heat pumps installation methods. Failure to observe the procedures herein indicated, could result in malfunction and damage to the unit. Before beginning the installation of the YOSHI AWS unit, read and fully under stand the contents of this manual.

After the installation, always call the local AISIN Authorised Service Centre to perform the outdoor and indoor units commission ing.

YOSHI®AWS E1J - TWIN

Yoshi Air Water System AWS INSTALLATION MANUAL

40 HP – 50 HP

2

INDEX

Specifications 1 AWS unit specifications ........................... ........................................................................... 3

1.1 Installation prescriptions ................................................................................................... 3

2 Before installation................................ ................................................................................ 4

2.1 Parts provided................................................................................................................... 4

2.2 Locally procured parts ....................................................................................................... 4

3 Use of water and glycol mixture ................... ...................................................................... 5

4 Installation ...................................... ...................................................................................... 5

4.1 Selecting the location for installation ................................................................................. 5

4.2 External dimensions, hydraulic and refrigerant gas connections ....................................... 6

4.3 Installation space .............................................................................................................. 7

5 Refrigerant piping ................................ ................................................................................ 8

5.1 Outline drawing of refrigerant piping. ................................................................................ 8

5.2 Piping specifications ......................................................................................................... 9

5.3 Refrigerant gas extra charge ........................................................................................... 10

6 Refrigerant circuit and hydraulic circuit ......... ................................................................. 11

6.1 Cooling mode ................................................................................................................. 11

6.2 Heating mode ................................................................................................................. 11

7 Electric wire installation ........................ ............................................................................ 12

7.1 Wiring with GHP outdoor unit .......................................................................................... 12

7.2 Detailed wiring diagram .................................................................................................. 13

8 AWS Accessories ................................... ........................................................................... 14

8.1 Controller Plus: Control Panel and Probe Temperature Buffer Tank ............................... 14

8.1.1 Control panel ............................................................................................................... 14

8.1.2 Probe temperature buffer tank ..................................................................................... 14

8.2 External probe temperature ............................................................................................ 14

9 Control panel ..................................... ................................................................................. 15

10.1 Control panel .................................................................................................................. 16

10 AWS Set Point Adjustment .......................... ..................................................................... 16

10.1 ........................................................................................................................................... 17

10.2 Setting the offset ............................................................................................................. 17

11 Installation layouts .............................. .............................................................................. 18

11.1 Central storage tank installation ...................................................................................... 18

11.2 Hydraulic separator installation ....................................................................................... 18

11.3 Single pump installation .................................................................................................. 18

11.4 HVAC installation AWS E1J TWIN .................................................................................. 19

11.5 HVAC installation E1J TWIN proportional distribution of consumption ............................ 20

11.6 HVAC installation AWS E1J TWIN variable flow rate no hydraulic separator (AHU) ....... 21

11.7 HVAC installation AWS E1J TWIN variable flow rate with hydraulic separator (fan coil) . 22

12 Troubleshooting (reference) ....................... ...................................................................... 23

Tecnocasa S.p.A. declines any responsibility for any damage whatever caused by improper use of the unit and/or non compliance with the information contained in this manual. Specifications, drawings and technical information in this manual are subject to change without notice.

Deu

tsch

3

TWIN unit AWS 40 HP – E1J AWS 50 HP – E1J

16+16 HP 16+20 HP 20+20 HP 16+25 HP 20+25 HP 25+25 HP

Capacity code of the connected GHP outdoor unit P900 P1010 P1120 P1160 P1270 P1420 Rated cooling capacity∗ kW 82,0 93,0 104,0 104,0 115,0 126,0

Water temperature (out – in)] °C 7 – 11 7 – 11,5 7 – 12 7 – 11 7 – 11,5 7 – 12 Min. supply water temperature °C 6

Rated heating capacity ∗∗ kW 95,0 107,5 120,0 122,5 135,0 150,0 Water temperature (out – in) °C 45,5 – 41 45,5 – 40,5 45,5 – 40 45,5 – 41 45,5 – 40,5 45,5 – 40

Max. supply water temperature °C 47 Flow rate m3/h 19,0 24,0

Capacity modulation range cooling. (min-max) kW 17,0 – 82,0 17,0 – 93,0 17,0–104,0 17,0–104,0 17,0–115,0 17,0–126,0 Capacity modulation range heating (min-max) kW 19,8 – 95,0 19,8–107,5 19,8–120,0 19,8–122,5 19,8–135,0 19,8–150,0

Unit without pump

(AWS E1J)

Power supply V/Ph/Hz 230/1/50

Power consumption W 250

Starting current A 1,5

Plate heat exchanger pressure drop kPa 33 33 33 46 46 46

Water circuit

Water connections Inch 2,5 (flange connection DN 65 – EN 1092 1/13)

Primary circuit pipe size Inch 2,5 or higher (Each AWS unit is fitted with a 2,5” Y strainer to be installed on the primary circuit)

Refrigerant circuit

Refrigerant gas connection (gas – liquid) mm 2 x 28,6 – 2 x 18,0

GHP 1 – AWS pipe size

(gas – liquido) mm 28,6–15,88

***(19,05) 28,6–15,88 ***(19,05)

28,6–15,88 ***(19,05)

28,6–15,88 ***(19,05)

28,6–15,88 ***(19,05)

35,0–15,88 ***(19,05)

GHP 2 – AWS pipe size

(gas – liquido) mm 28,6–15,88

***(19,05) 28,6–15,88 ***(19,05)

28,6–15,88 ***(19,05)

35,0–15,88 ***(19,05)

35,0–15,88 ***(19,05)

35,0–15,88 ***(19,05)

Dimensions and weight

Height mm 915 Width mm 710 Depth mm 1.020 Weight kg 230

Conectable GHP outdoor units 2 ∗ Rated cooling capacity is measured according to the following conditions: water outlet temperature 7°C; outdoor temperature 35°C DB ∗∗ Rated heating capacity is measured according to the following conditions: water outlet temperature 47°C; outdoor temperature 7°C DB / 6°C WB ∗∗∗ If the distance between GHP and AWS exceeds 40 meters, install a pipe with the diameter indicated in brackets.

1.1 Installation prescriptions

CAUTION

Always foresee the installation of an emergency rel ief valve and a properly dimensioned expansion vessel. These devices are not built in the AWS unit. Where the storage tank should be installed lower th an the AWS unit, foresee the installation of a jolly valve at the higher point o f the water piping. Failure to observe these prescriptions could result in malfunction and/or damage to the unit.

Always foresee the installation of a buffer tank, f itted with anti stratification pipes, which size should be adequate to the AWS unit capacity. Failure to observe these prescription could result in malfunction and/or damage to the unit.

Always check that the Y-shape water filter (supplie d with the unit) is installed on the primary circuit return pipe. In case of multi u nits plants, install one filter each AWS unit. Install the filter to not less than 50 cm from suction of the pump. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

WARNING

Welding, refrigerant gas and water piping installat ion should be always performed by specialised technical personnel in acc ordance with instructions and prescriptions mentioned in the present manual. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the YOSHI AWS unit.

1 AWS unit specifications

4

2.1 Parts provided The following parts are provided with the YOSHI AWS unit. Name

Installation

manual Control box

wiring diagram 2” Y-shape filter for water

pipe [gaskets] DN 65 flanges EN 1092

[gaskests] where provided Quantity 1 1 1 - [2] 2 – [2]

Location Inside the control panel

Inside the unit near the water connections

Note Always store the manuals in a dry and safe place

Refer to the prescriptions of this manual for the installation of the accessories

2.2 Locally procured parts The following items are required for installing the YOSHI AWS unit.

Part Application

Anchor bolt For installing the AWS unit on the ground (M8X4)

Washer, Nuts For installing the AWS unit on the ground (φ8X4)

Ant vibrant carpet For installing the unit on metal bars or on the roof.

Copper pipe and fittings for refrigerant gas

Refrigerant gas piping (materials and procedures are described in the GHP outdoor unit installation manual)

Steel pipe and fittings for water

Water piping (materials and procedures are described in the present manual)

Insulation For refrigerant gas and water pipe insulation

Electrical wires AWS unit power supply, ground wiring, communication and accessories wiring (proper size and wire specifications are described in the GHP outdoor unit installation manual)

R410a refrigerant gas, precision scale and gauge manifolds

Refrigerant circuit extra charge (refrigerant extra charge is described in the present manual)

Oxy acetylene welding kit Gas bottles, nozzle and copper bars to weld refrigerant pipes

Nitrogen Bottle Refrigerant gas leakage test (the procedure is described in the GHP outdoor unit installation manual)

Vacuum pump Vacuum suction (the procedure is described in the GHP outdoor unit installation manual)

Pipe cutter Refrigerant gas piping installation

Fixing bolts Installation of the DN 65 flanges (Screws M16X50 – Nut M16)

WARNING

Never use parts which are not compliant with those listed in the present manual. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

The installation of the unit must comply with natio nal and local codes. Failure to observe this prescription could result in illegal act. The manufacturer specifically disclaims any liabili ty whatsoever for any claims by any party if any of the procedures in this Installation Manual h ave not been followed. Failure to observe this prescription makes the warranty no longer valid.

2 Before installation

5

Use mixtures of water and antifreeze fluid to lower the freezing point of water. The liquid most commonly used as antifreeze is ethylene glycol. The table shows the reduction factors of the cooling capacity and the capacity of the pump of the AWS as a function of the water temperature and percentage by weight of glycol in the mixture.

Water Glycol Reduction factor of the cooling capacity

Reduction factor of the pump flowrate

°C % kg - - -2 5 0,995 0,99 -4 10 0,990 0,98 -6 15 0,985 0,96 -9 20 0,980 0,94 -12 25 0,975 0,92 -15 30 0,970 0,90 -19 35 0,965 0,88 -23 40 0,960 0,86 -29 45 0,955 0,83 -35 50 0,950 0,80

4.1 Selecting the location for installation

WARNING

• The unit MUST NOT be installed where flammable gas i s generated, accumulated or handled. Failure to observe this prescription could result in damage of the unit, injury, fire or explosion.

• The AWS unit is for outdoor and indoor installation. Read the present manual carefully to select a proper installation location. Make sure ma intenance space is provided around the unit.

• If the unit is installed at high location, provide a safe access by installing ladders or railings for the operator.

• Always install the AWS unit in an area where its smooth operating noise and small vibration won’t be a disturb for the neighbours, particularly in residential areas. Comply to local standards where prescribed.

• Always install the AWS unit in a level location where rainwater cannot accumulate. Provide proper drain routes.

• Always install the AWS unit in a location where it won’t be exposed to strong winds. Provide proper anchor bolts.

• The AWS unit might cause slight interference with other electrical equipment, such as televisions, radios, computers and telephones. Provide proper clearances.

• If the AWS unit is installed in a region with heavy snowfall, install a snow protection hood. The base for the unit is high enough to avoid accumulation of snow in front of the body panels.

• Allocate the route for loading/unloading the unit, materials and parts for maintenance at the installation site.

3 Use of water and glycol mixture

4 Installation

6

4.2 External dimensions, hydraulic and refrigerant gas connections The table below shows the diameters of the water connections, refrigerant, piping diameters and their position in the various models of AWS.

TWIN UNIT REFRIGERANT WATER AND REFRIGERANT GAS CON NECTIONS

Water connections Inch 2,5 The uniti s supplied with DN 65 (EN 1092 1/13) flanges

Primary circuit water pipes diameter Inch

2,5 or higher Anti vibration joints should be foreseen at the water connections in some kind of installation layouts.

The supplied Y strainer must always be installed with a minimum distance of 50 cm from the AWS intake connection.

Refrigerant gas connections mm

40 HP 50 HP Liquid Gas Liquid Gas 2 x 18 2 x 28,6 2 x 18,0 2 x 28,6

GHP – AWS Refrigerant pipes

diameter (distance up to 40 m)

mm

16 + 16 HP 16 + 20 HP 20 + 20 HP 16 + 25 HP 20 + 25 HP 25 + 25 HP Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1

15,88 28,6 15,88 28,6 15,88 28,6 15,88 28,6 15,88 28,6 15,88 35,0

Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2

15,88 28,6 15,88 28,6 15,88 28,6 15,88 35,0 15,88 35,0 15,88 35,0

GHP – AWS Refrigerant pies diameter

(distance over 40 m) mm

16 + 16 HP 16 + 20 HP 20 + 20 HP 16 + 25 HP 20 + 25 HP 25 + 25 HP Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1 Liq.1 Gas1

19,05 28,6 19,05 28,6 19,05 28,6 19,05 28,6 19,05 28,6 19,05 35,0

Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2 Liq.2 Gas2

19,05 28,6 19,05 28,6 19,05 28,6 19,05 35,0 19,05 35,0 19,05 35,0

Refrigerant gas and water connections

location mm

Gas Liquid Water A B C D E F G

311 426 576 656 151 370 450

Dimensions (W - H - D) mm 710 – 915 – 1.020

FRONT VIEWSIDE VIEW

Water In

G2 L1

915

710

1020

REAR VIEW

940

L2G1

Water Out

A

B

C

D

YOSHI

FG

450

E

7

4.3 Installation space

Clearances for maintenance and inspection operations are described in the tables below.

Always provide ample space for inspecting and maintaining the piping for the refrigerant gas and for the water.

Front view Top view

YOSHI

1 m or more

Always provide 1 m or more above the AWS unit

<Single unit installation >

Always leave at least 500 mm on the right side (viewed from coupling tubes AWS)

<Overlapped multiple units installation>

YOSHI

YOSHI

Water In

G2 L1 L2G1

Water Out

Water In

G2 L1 L2G1

Water Out

When the units are overlapped, route the pipes of the upper unit so that all the body

panels of the lower unit can be disassembled.

<Multiple units installation>

Always leave at least 500 mm on the right side

(viewed from coupling tubes AWS)

CAUTION

• The minimum installation spaces are necessary to pr ovide room for air circulation, inspection and maintenance of the AWS unit. Failure to observe this prescription could result in injury to the maintenance personnel and damage to the unit.

• When more units are installed in the same location, make sure that nearby walls, pipes or other objects, are not obstructions for maintenance operations. Maintenance space is described in the table below.

8

5.1 Outline drawing of refrigerant piping.

WARNING

All the welding operations on the AWS – GHP refrigera nt gas piping must be always performed in accordance with instructions and prescriptions ment ioned in the AISIN GHP installation manual (brazing with nitrogen flow). Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the YOSHI AWS unit.

5 Refrigerant piping

9

5.2 Piping specifications

WARNING

YOSHI AWS refrigerant gas connections diameter differs from the ones prescribed for the refrigerant gas line to the AISIN GHP outdoor unit. T herefore, install proper adapters (not supplied).

Select the proper AWS – GHP pipe diameter according to the table below.

YOSHI AWS GHP AISIN

units

Installation item Diameter x Thickness (mm) Acceptable piping

length. (m)

(relative/actual)

Max height difference. (m)

Gas Liquid Liquid (*) GHP

ground GHP roof

Compressor oil

GHP Multi Type

AWS E1J TWIN

[16HP] 28,6x1,5 15,9x1,0 19,05x1,0

70/60 20 25 NL10 [20HP] 28,6x1,5 15,9x1,0 19,05x1,0

[25HP] 35,0x1,5 15,9x1,0 19,05x1,0

(*) If the distance between GHP and AWS exceeds 40 meters use a liquid tube of bigger diameter as indicated in the table. The refrigerant gas line for the YOSHI AWS unit must be designed and installed in accordance with the prescriptions here under listed.

Layout example (in case of AWS connection) If there is a height difference

between the locations of indoor and outdoor units, be sure to apply “trap

piping” on the vapour line within every 10 m as illustrated.

10 m

A

L

Outdoor unit

f

AWS

H

Piping length

Maximum piping length (L) (Relative/Actual)

L = A 70/60m or less

Height difference

Height difference between indoor unit and outdoor unit (H)

When GHP outdoor unit is higher than AWS unit

25 m or less

When GHP outdoor unit is lower than AWS unit

20 m or less

CAUTION

It is forbidden to connect direct expansion indoor units and YOSHI AWS to a single AISIN GHP outdoor unit simultaneously. The YOSHI AWS can be only connected to a specific AISIN GHP outdoor unit for AWS with the same capacity.

WARNING

• Never exceed the maximum accepted distances when co nnecting the YOSHI AWS to the

AISIN GHP outdoor unit. Failure to observe this prescription makes the warranty no longer valid and could result in malfunctioning of the YOSHI AWS unit.

10

5.3 Refrigerant gas extra charge

WARNING

Accurately measure the length of the piping and cha rge with the proper amount of refrigerant gas. Failure to observe this prescription could result in malfunctioning of the YOSHI AWS unit. When charging the refrigerant gas, make sure to wea r proper protective gloves. Refrigerant gas leakages can cause frost bites.

• Each of the GHP connected to the YOSHI AWS unit must be considered as an independent

refrigerant circuit. Quantities mentioned below are referred to one single GHP.

• Always charge the refrigerant as a liquid in the tank. In case of charging as a gas may cause a compositional change of the refrigerant, and could result in a performance decline or a breakdown.

• Always use a refrigerant scale when charging the refrigerant. Using a charging cylinder may cause a compositional change of the refrigerant, could result in a performance decline or a breakdown.

• To avoid cross-contamination with other oil types, make sure to separate maintenance tools according to the type of refrigerant used. In particular, never use the gauge manifold and charging hose with other refrigerants than R410a.

After confirming the factory charge on the AISIN GHP label, use the following equation to determine the necessary extra amount of refrigerant gas. Always refer to the liquid pipe lengths and diameters only.

Extra charge (kg) = ( L1 × 0.250) + (L2 × 0.170) + (L3 x 0.110) + 1.5

CAUTION

The refrigerant extra charge must be done in accord ance with the procedures described in the AISIN GHP installation manual. Failure to observe this prescription makes the warranty no longer no longer valid and could result in malfunctioning of the YOSHI AWS unit.


11

6.1 Cooling mode The refrigerant (R410A) processed by the GHP flows through electronic expansion valve and enters the lower part of the AWS unit heat exchanger at low pressure. The gas evaporates in the plate heat exchanger by taking heat from the counter current water flow. It goes back to the GHP as overheated steam. The outdoor unit fans create an air flow through the heat exchanger and thus the refrigerant can condense. At the same time, the water coming from the buffer tank is cooled and pumped again into the primary circuit by the AWS built in pump. Flow switch, pressure switch and anti freeze thermo sensor overlook the water temperature never to drop inside the heat exchanger. In fact, water may freeze and the heat exchanger can be damaged.

6.2 Heating mode The refrigerant (R410A) processed by the GHP enters the upper part of the AWS unit heat exchanger as high pressure overheated steam. The gas condenses in the plate heat exchanger by ceasing heat to the co current water flow. It goes back to the GHP as high pressure liquid, through the bypass pipe. The two outdoor unit expansion valves divide the return flow, reducing its pressure. The GHP manages the evaporation through the heat exchanger and the heat recovery. At the same time, the water coming from the buffer tank is heated and pumped again into the primary circuit by the AWS built in pump.

4

6

TO GHP 1

FROM GHP 1

3

52

9

F

7

1

8

AWS REFRIGERANT CIRCUIT AND HYDRAULIC CIRCUITCOOLILNG MODE

4

6

5

3

2

1

TO GHP 2

FROM GHP 2

10

10

6 Refrigerant circuit and hydraulic circuit

1) Expansion valve driver 2) Check valve 3) Electronic expansion valve 4) Water inlet temperature probe 5) Water outlet temperature probe 6) Plate heat exchanger 0)

7) Water pressure difference switch 8) Air vent valve 9) Flow switch 10) Pump (not included in the version E1J) 11) Expansion valve pressure sensor

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7.1 Wiring with GHP outdoor unit Power supply specifications are always mentioned on the YOSHI AWS product label. Always check the power supply before installing the unit. Always perform the wiring in accordance with the prescriptions listed in the paragraph 0 of the present manual.

WARNING

• NEVER connect the YOSHI AWS unit to a common circuit with other appliances. Use a

dedicated branch circuit protected by an earth leak age breaker. Failure to observe this prescription could result in malfunctioning of the unit and hazards for people and/or things.

• NEVER ground the unit by connecting the wires to water or gas piping or to a lightning rod.


• All electrical installation work must be performed by specialised technical personnel in accordance with the local and national installation standards. A declaration of conformity must be provided by the installer. Failure to observe this prescription could result in electrical shock, fire or other hazards.

• Switch off the main circuit breaker or power meter during the electrical installation work of the YOSHI AWS unit.

• Always use the designated cable for wiring, includi ng the ground wiring, according to the national standards.

• Always check the power supply specifications on the YOSHI AWS unit. Failure to observe this prescription could result in malfunction and/or damage to the YOSHI AWS unit.

I – I: communication line outdoor unit – AWS. O – O : communication line outdoor unit – outdoor unit (NOT AVAILABLE WITH AWS). Q1 – Q2: electrical terminals present only on GHP (16-20-25) HP. Terminals can be used only for direct expansion.

NEVER SUPPLY THE UNIT WITH THREE PHASE POWER

7 Electric wire installation

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7.2 Detailed wiring diagram

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8.1 Controller Plus: Control Panel and Probe Temperature Buffer Tank

8.1.1 Control panel Control panel for the remote management of the AWS with which is possible to control and management of a single module from a remote location. The shielded cable connecting the panel to the module has a maximum length of 60 meters. The panel allows you to control and modify the operating parameters of the module (for details regarding the management of the module with the remote control panel, refer to the AWS "service manual").

8.1.2 Probe temperature buffer tank The probe is used to stop the pump when the AWS reaches the set point temperature. It must be installed on the tank and connected to the AWS as shown in the drawing.

8.2 External probe temperature The probe allows adjustment of the flow temperature of the water according to the temperature of the outside air by means of a 4-20 mA current signal.

AWS TERMINAL BLOCK

ASIT ACTIVE PROBE(BUFFER TANK)

BUILDING MANAGER(THERMO MANAGER OR EQUIVALENT)

OUTSIDE TEMP.ACTIVE PROBE

OPTIONALCONTROL PANEL

POWER SUPPLY 12 V AC

POWEER SUPPLY 12 V AC

AWS – CONTROL PANELCOMMUNICATION

Jumper position on terminal blockfor 4..20 mA current output

8 AWS Accessories

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The YOSHI AWS control panel is represented below. In case of AISIN GHP outdoor unit malfunction, the error code will be displayed on the remote controller fitted in the YOSHI AWS control panel. Check the failure type on the AISIN GHP installation manual.

The water thermostat factory settings are: - COOL mode: T set cool = 8°C - HEAT mode: T set heat = 44°C

The YOSHI AWS has the following safety built in devices: - Pressure difference switch: the AISIN GHP outdoor unit stops in case of missing pressure

difference between inlet and outlet of the pump. - Flow switch: the AISIN GHP outdoor unit stops in case of insufficient water flow in the primary

circuit. - Antifreeze thermostat: In the summer the AISIN GHP outdoor unit stops in case of water

temperature in the primary circuit below +5°C. In the winter the pump is started when the water temperature is below +5 °C and, if necessary, also the GHP is started.

WARNING

• NEVER change the safety factory settings. Failure to observe this prescription makes the

warranty no longer valid and could result in malfunction and/or damage to the unit. • NEVER disconnect or bypass the YOSHI AWS built in safety devices for a forced

operation of the unit. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

• NEVER change the factory settings of the AISIN remote c ontroller fitted in the control panel. Failure to observe this prescription could result in malfunction and/or damage to the unit.


• Some operation parameters of the YOSHI AWS can be chang ed under request to the AISIN Authorised Service Centre. Failure to observe this prescription makes the warranty no longer valid.

• In case of multiple units installations it is possi ble to manage a proportional distribution of the capacity by an external optional device.

• The main screen of the YOSHI control panel always dis plays the primary circuit return temperature. Supply temperature can be displayed in the service menu under analogue inputs folder.

9 Control panel

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10.1 Control panel

The unit AWS YOSHI has the possibility to vary the capacity delivered, in a range between 13% and 100% of rated power, as a function of the return water temperature on the primary circuit. The modulation of the capacity is adjusted according to a proportional band. Just adjust the temperature set point on the user menu on the control panel, that is the parameters "Tset" and the proportional band width (Range modulation parameter). As the return water temperature on the primary approaches the set point, the AWS capacity is reduced to 13%. Once the set point is reached and exceed, the system makes 6 consecutive temperature checks, one every each 10 seconds. If, during these controls, the temperature never goes below the set point the AWS stops. If the optional "Plus Controller" has been installed, once the set point has been reached and the AWS stops, the primary circulation pump halts. Otherwise, the primary circulation pump continues to run, nevertheless the AWS system is in stand-by. Example of modulation in heating: The set point temperature in heating, ie the parameter "Tset heat", may vary in a range between 30°C and 48°C. The factory settings are: Tset heat = 44°C; Modulation Range = 5°C The table below shows the method of variation of the capacity and a numerical example. Capacità AWS

[%] Tset heating [°C] Range [°C] Modulation limit temperature [°C]

Outlet temperature [°C]

100

A ∆T

(A+1) - ∆T

A + 1 75 (A+1) - ∆T(4/5) 50 (A+1) - ∆T(3/5) 25 (A+1) - ∆T(2/5) 13 (A+1) - ∆T(1/5)

100

30 5

26

31 75 27 50 28 25 29 13 30

100

48 5

44

49 75 45 50 46 25 47 13 48

10 AWS Set Point Adjustment

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Example modulation in cooling: The set point temperature in cooling, ie the parameter "Tset cool", may vary in a range between 6°C and 15°C. The factory settings are: Tset cool= 8°C; Modulation Range = 5°C

AWS Capacity [%]

Tset cool [°C] Modulation Range [°C]

Max. Temperature Modulation [°C]


100

A ∆T

A + ∆T

A - 1 75 (A + ∆T) - (∆T•0,25) 50 (A + ∆T) - (∆T • 0,5) 25 (A + ∆T) - (∆T•0,75)


6 5

11

5 75 9,75 50 8,5 25 7,25


15 7

22

14 75 20,25 50 18,5 25 16,75

The YOHSI AWS TWIN unit proper operation foresees the following capacity modulation method of

the two GHP units:

■ Two GHP units at 100% of their load;



■ One GHP unit at 50% of its load;

■ One GHP unit at 25 % of its load.

10.2 Setting the offset The unit YOSHI AWS allows you to adjust the offset of the set point temperature, that is the return water temperature on the primary circuit. The parameters "Tset Offset " can be changed in the user menu, (please refer to the AWS service manual). If the optional "Controller Plus" has been installed, of the offset measurement will be made by its active probe, installed on the buffer tank. The factory settings are: Heat Tset Offset = 2°C Cool Tset Offset = 2°C

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CAUTION

The installation layouts below are just representat ive of suggested possibilities. Always refer to technical qualified personnel for d esigning. Further information is available under request by AISIN technical department or on the website www.aisin.it .

11.1 Central storage tank installation This layout is recommended by the manufacturer for fan-coil installations. to optimise the operation of the AISIN GHP. When choosing this layout always make sure that the water flow of the primary and the secondary circuits are balanced. Moreover, the storage tank must be provided with anti stratification pipes.

11.2 Hydraulic separator installation When choosing this layout, make sure that the static pressure of the water pump fitted in the YOSHI AWS unit is enough to win the total pressure drop of the primary circuit. In this case it is possible to install horizontal storage tanks.

11.3 Single pump installation This layout is recommended by the manufacturer for Air Handling Unit (AHU) installations. Make sure that the static pressure of the water pump fitted in the YOSHI AWS unit is enough to win the total pressure drop of the whole circuit.

11 Installation layouts

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11.4 HVAC installation AWS E1J TWIN

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11.5 HVAC installation E1J TWIN proportional distribution of consumption

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11.6 HVAC installation AWS E1J TWIN variable flow rate no hydraulic separator (AHU)

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11.7 HVAC installation AWS E1J TWIN variable flow rate with hydraulic separator (fan coil)

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WARNING

• NEVER stop the GHP – AWS system by switching off the pow er supply during the

operation. Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and/or damage to the unit.

• NEVER switch on the YOSHI AWS power supply after switchin g on the GHP outdoor unit. Failure to observe this prescription could result in malfunction and/or damage to the unit.

The table below shows all the possible failures indicated directly by the YOSHI AWS control panel.

ALARM TYPE ALARM CODE POSSIBLE CAUSES SOLUTIONS

Flow switch alarm A1S1 • Y-filter clogged • Capacity insufficient

• Clean the Y-filter

• Check the pressure in the hydraulic circuit

• Check the flow switch

Pressure difference switch alarm

A2S1 • Air in the system • Pump malfunction

• Remove the air

• Replace the pump • Check the pressure differential switch

(compare the state with the flow switch)

GHP1 Alarm A3S1


Flowswitch tamper alarm A4S1

• Check the wiring of the flowswitch.

• Check the operation of the flowswitch. • Check the layout of plant (other

pumps make circulate water when not expected

Antifreeze alarm A5S1

• Check the operation of the pump, the flow switch and pressure differential switch

• Verify that the offset values in summer operation are not excessive

• Check the temperature probes and their wiring

Return temperature probe alarm 1


Antifreeze temperature probe alarm 1


Expansion valve driver alarm 1

A8S1 • Use the Carel display. Press "help"

and check which component is in alarm

Maintenance period warning

A13S1

The heat pump is about to reach the 10.000 hours of operation. Need for routine maintenance.

• Contact the service centre Aisin

12 Troubleshooting (reference)

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Maintenance period alarm

A14S1

The heat pump has reached 10.000 hours of operation. Need for routine maintenance.

• Reset the hours of operation (See page 82, service manual paragraph 13.3 "Reset hours of operation").

GHP2 Alarm A15S1


Return temperature probe alarm 2


Antifreeze temperature probe alarm 2


GHP 1 starting failure A18S1 • Check T1T2 setting • Check wiring 15.1 16.1 • Check C1NO1 relay

GHP 2 starting failure A19S1 • Check T1T2 setting • Check wiring 15.2 16.2 • Check C2NO2 relay

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The table below shows all the error codes displayed on the remote controller fitted in the AWS control panel. In case of malfunction contact the AISIN Authorised Service Centre that usually maintains the GHP outdoor unit.

R/C AWS


(OFF led off)

GHP outdoor

unit display

Type of failure Possible cause Error code

Led ON/OFF

TEST Disp.

Unit No.

A0 X X X 63-n External input • External protection input signal stops the unit • Remote controller local setting failure


• PC board defective • EEPROM setting error

A3 X X X 95-n Drain lines

- AWS flow switch

• Direct Expansion version – indoor unit drain pump malfunction .

• AWS version – flow switch or antifreeze thermostat switched off.

A6 X X X 15-n Indoor unit fan motor

• Fan motor blocked • Harness disconnection

A7 ON X X 35-n Indoor unit swing

flap motor • Swing flap motor malfunction • Cam mechanism failure


• LEV malfunction • Harness disconnection

AF ON OFF X 30-n Drain pipe • Improper drain piping installation (inverse draft) • Pipe clogged

AH ON OFF X 31-n Air cleaning device

• Indoor unit circuit boar malfunction • Air cleaning device failure (optional)

AJ X X X 22-n Capacity setting • Capacity setting failure • Missing capacity setting adapter (replacement of PCB)

C4 X X X 18-n

Indoor unit temperature

sensors

• Heat exchanger temperature sensor failure • Improper harness connection

C5 X X X 19-n • Gas pipe temperature sensor failure • Improper harness connection

C9 X X X 97-n

• Direct Expansion version - Intake air temperature sensor failure

• AWS version – Resistors group failure • Improper harness connection

CA X X X 98-n • Exhaust air temperature sensor failure • Improper harness connection

CJ ON OFF X 17-n R/C temperature

sensor • R/C temperature sensor failure • Improper harness connection

U3 X X X - Test run • Test run operation

U4 X X X - Communication • Outdoor unit power supply OFF • Outdoor unit – indoor unit transmission error

U5 X X X 1-n Communication • Duplicating main remote controller connection

• Transmission error

OFF ON OFF - Remote controller PC board

• Remote controller PC board failure • Remote controller setting failure

U8 X X OFF - • Transmission error between main and sub remote controller

U9 X X X - Communication • Transmission error between two indoor units • Transmission error between outdoor and indoor unit

UC ON ON ON 36-n Central remote

controller

• Address duplication of central remote controller • Air-net address duplication of indoor units

UE X X X 23-n • Transmission error between indoor unit and central remote controller

UF X X X 24-n Communication

• Communication error between indoor and outdoor unit • Improper wiring

UH X X X - • Indoor unit address setting failure

E1 X X X 40-0∼2

Outdoor unit PC board

• EEPROM failure or program failure

X X X 84-3,4 • Outdoor unit PC board malfunction • Transmission error between microcomputer

E3 X X X 86-0 Operation failure

• Refrigerant High pressure alarm

E4 X X X 88-0 • Refrigerant Low pressure alarm

E7 X OFF X 86-10∼23 Outdoor unit fan • Heat exchanger fan (1,2,3) failure • DCBL board failure

EA X X X 57-0 4-way valve • 4-way valve failure • Harness disconnection

EC X X X 80-0 Operation failure • Engine coolant overheating (temperature >105°C)

EH X X X 80-10∼30 Engine coolant

pump • Engine coolant pump failure • DCBL board failure

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R/C AWS


(OFF led off)

GHP outdoor

unit display

Type of failure Error code Possible cause

Error code

Led ON/OFF

TEST Disp.

Unit No.

F3 X X X 91-0 Operation failure

• Compressor discharge temperature too high (>120°C)

F4 X X X 87-0,2 • Compressor intake temperature too high (> 40°C)

FE X X X 81-0 Engine oil • Abnormal engine oil pressure • Engine oil level insufficient

FF X X X 58-0 Compressor oil • Refrigerant oil supply valve failure • Improper harness connection

FJ X X X 47-0 Catalyser • Catalyser overheating (where provided)

H3 X X X 76-0 High pressure

switch • High pressure switch malfunction • Improper harness connection

H4 X X X 88-2 Low pressure switch

• Low pressure switch malfunction • Improper harness connection

H9 X X X 61-0


sensors

• Outdoor temperature sensor malfunction • Improper harness connection

H9 X X X 61-1 • Outdoor temperature sensor short circuit

HC X X X 70-0 • Engine coolant temperature sensor malfunction • Improper harness connection

HC X X X 80-1 • Engine coolant temperature sensor short circuit

HJ X X X 80-2 Engine coolant • Engine coolant level insufficient

HF X OFF X EE-0 Maintenance • Periodic maintenance alert

J3 X X X 78-1∼5


sensors

• Compressor discharge temp sensor disconnected

X X X 91-2∼7 • Compressor discharge temp sensor short circuit

J4

X X X 54-0 • Super cooling heat ex. temp. sensor disconnected

X X X 54-1 • Super cooling heat ex. temp. sensor short circuit

X X X 55-0,1 • Accumulator outlet temp. sensor disconnected

X X X 55-2,3 • Accumulator outlet temp. sensor short circuit

J5 X X X 53-0,1 • Compressor intake temp. sensor disconnected

X X X 53-2,3 • Compressor intake temp. sensor short circuit

J6 X X X 65-0 • Heat exchanger liquid pipe temp. sensor disconnected

• Improper harness connection X X X 65-2 • Heat exchanger liquid pipe temp. sensor short circuit

J7

X X X 66-0 • Sub heat exchanger liquid pipe temp. sensor disconnected

X X X 66-1 • Sub heat exchanger liquid pipe temp. sensor short circuit

J8 X X X 67-0 Outdoor unit

temperature sensors

• Outdoor liquid pipe temp. sensor disconnected

X X X 67-2 • Outdoor liquid pipe temp. sensor short circuit

JA X X X 73-0,1 Outdoor unit pressure sensors

• High pressure sensor malfunction

JC X X X 88-4 • Low pressure sensor malfunction

JE X X X 71-0 Oil pressure sw. • Oil pressure switch disconnected

JJ

X X X 72-0 Outdoor unit temperature

sensors

• Engine room temp. sensor disconnected

X X X 72-1 • Engine room temp. sensor short circuit

X X X 72-6 • Catalyser temp. sensor disconnected

LE X X X 75-1∼3 Igniter voltage • Igniter voltage too low or too high

LF X X X 84-0 Operation failure

• Engine start failure – missing supply gas

LJ X X X 75-0 • Unwanted engine stop

P8 X X X 74-1∼4 74-6

82-0∼1 Engine • Insufficient starting engine speed (starter failure)

• Abnormal engine speed (gas mixer failure)

PE X X X 74-7 Gas valves • Supply electro magnetic gas valves failure

PF X X X 60-0 Starter • Starter failure

U0 X X X 88-5 Ref. Piping • Refrigerant gas empty

U7 X X X 4-0∼6 Communication • master / slave outdoor unit communication failure

UA X X X 43-0,1 44-n

Indoor unit number

• Over connection of capacity units • Too many indoor units connected

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Manuale tecnico inglese PROVA 1 - Atmopomiar Sp. z o.o.

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Transcript of Manuale tecnico inglese PROVA 1 - Atmopomiar Sp. z o.o.