Tcai Thai 150 Katalog PDF 648 Kb Angl. Jaz.

7/31/2019 Tcai Thai 150 Katalog PDF 648 Kb Angl. Jaz.

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K11937EN ed. 1

TC A I-T H A I 1 5 0

Mich rangeMicrosystem

48,1kW46,452,9 kW

Air cooled water chillers and heat pumps with axial fans.Units equipped with Scroll Inverter hermetic compressors.STANDARD version.PUMP version, with single pump or double pump.TANK&PUMP version, with integrated storage tank and singlepump or double pump.


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TCAI-THAI 150 construction features

3

contents

General features ...................................................3Intended use............................................................3Construction features .........................................4

compatible microprocessorelectronic control.....................................................4STANDARD version ( models TCAI - THAI) .......4PUMP version .........................................................4TANK & PUMP version..........................................4Accessories ...........................................................4Factory fitted accessories .....................................4Accessories supplied l oose...................................4

Technical dat a ......................................................5Energy efficiency with parti al loads E.S.E.E.R. i ndex ....................................................6Microprocessor electronic control..................7Electronic contr ol....................................................7KTR - Remote keyboard .......................................7Serial communication .........................................8KRS485 Serial interface........................................8Supervision .............................................................8KSC - Clock card ....................................................8Performance dat a ................................................9

Pressure drops and r esidual staticpressures .............................................................12Operating limits ..................................................13Use of antifreeze solutions .............................13Standard and P,D,T,U dim ensions and

footprints..............................................................14 Clearances and positio ning ................................14Installation .............................................................14Handling ................................................................14W ater connections ............................................15Electri cal connections ......................................16

General features

Intended use

The TCAI- units are monobloc air cooledwater chillers with air-cooled condensation. TheTCAI P,D,T,U units are monobloc air cooledwater chillers with air-cooled condensation

complete with pump, doubl e pump, deli verystorage with si ngle pump or double pump. The THAI units are monobloc heat pumpsfeaturing air- cooled evaporation / c ondensation.The THAI P,D,T,U units are monobl oc heat

pumps featuring air-cooled evaporation /condensation, complete with pump, doubl epump, deli very storage with sing le pump ordouble pump.

All ranges are equipped with axial fans. They ar e intended for use in conditioningplants or in dustrial processes where a supply ofchilled water (TCAI) or chilled and hot water

(THAI), is required. Not suitable for drin kingwater.The machine is designed for outdoorinstallation.

The units comply with the following directives: Machinery Directi ve 89/392/EEC (MD);

Low volt age Directive 73/23/EEC (LVD); Electromagnetic compatibility Directive

89/336/EEC (EMC); Pressure equipment Directive 97/23/EEC

(PED).

Code guide

SERIES" code MODEL" code

CCooling only

TWater production

unit

HHeat pump

AAir-cooled

with axial fans

IScroll hermetic

compressor

activated byinverter

1No. compressors

50Approximate

cooling capacity

(in kW)

Example: TCAI 150 Unit for pr oduction of cold water onl y;

Air-cooled with axial fans; 1 Scroll hermetic compressor acti vated by inverter; Cooling capacit y approximately 50 kW.


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TCAI-THAI 150 construction features

4

Construction features

Self bearing structure and panels inPeraluman, gal vanized steel bed; soundinsulated compressor room. Scroll-type rotary hermetic compress or withinverter activation for variable capacity contr ol

from 39 to 100% of the nominal power withreduction of the starting current during the start-up phase (there are no current pea ks at start upand the starting current never exceeds the

maximum current) and re-phasing of automaticuse to the mai ns, complete with internal thermalprotection and crankcase heating element. Air-side copper-pipe and aluminium-finnedcoil heat exchangers, compl ete with pr otectiongrille.

Water-side pl ate type heat-exchanger inbrazed stai nless steel complete with antifreezeheater, insulation in expanded synthetic rubber,air bleed val ve and water drain. Differential pressur e switch that protects the

units from any i nterruptions to the water flow. Male threaded hydraulic co nnections. Axial electric fans with external rotor,equipped with internal ther mal protection andcomplete with in ternal and external protection

grille. Refrigerant circuit realized with mild c oppertube (EN 12735-1-2) and welded with silveralloy, complete with: drier filter, loadconnections, manual reset high pressure safet y

pressure switch (in keeping with Directive97/23/EC (PED)) , automatic reset low pressurecontrol s witch, l iquid-humidity indicator,ductable safety val ve on high pressure side,electronic thermostatic expansion valve, cycle

reversing valve (for THAI), non-return valves(for THAI), fluid recei ver with safety valve (forTHAI), gas separator, liquid accumulator,pressure transducer to control fan speed,control of condensation/evaporation and

defrosting) .

Unit with IP24 level of protection Unit complete with: R407C refrigerant charge.

ductable condensate drain (for THA I).

compatible

microprocessor electronic control

Electric panel accessible by r emoving theupper front cover, which can be opened andclosed with a suitable tool, in compliance with

current IEC norms, complete with: electrical wiring for 400V-3ph+N-50Hz

power supply; auxiliary power suppl y 230V-1ph-50Hz

drawn from the main power s upply; general isola tor with door interlocki ngisolator;

automatic compressor pro tecti on switch; automatic switch for fan and pump

protection (PUMP and TANK&PUMP versio n); fuses for the auxiliary circuit;

power contactor for fans and pumps

(PUMP and TANK&PUMP version); remote unit control.

Programmable electronic board withmicroprocessor, provided with an advancedmanagement algorithm, managed by an LCDpanel in the machine. T his electronic boardperforms the following functions:

control and management of the deliver ytempera ture by means of an control logic type

PID (proportional integral derivati ve; of cyclereversal (for THAI); of the safety ti mer delays;of the circula ting pump(s); of the compressorand pump hour-run meter; of defrost cycles (forTHAI) at pr essure; of the elec tronic anti-freeze

protection which cuts in auto matically when themachine is switched of f; of the functions thatcontrol the working interventions of t he unitdevices; complete protection of t he unit, a utomatic

emergency shutdown and display of the alarmswhich have been activated; compressor protection phase sequence

monitor; unit protec tion against l ow or high three-

phase po wer suppl y voltage; LCD display of the programmed operating

parameters; of inlet/outlet water temperatures;of al arms; of chiller or heat pump operatingmode (for THAI); of the el ectrical volt age val ues

present in the phases of the power cir cuit thatpowers the unit; self-diagnosis with continuous monitoring of

the functioning of the unit; automatic pump operating hour balancing (D

and U versions); automatic stand-by pump ac tivation in the

event of an alarm. Alarm histor y management. The following ismemorized for each alarm: date and time ofinter vention (if the KSC accessory is present); alarm code and descripti on;

the water inl et/outlet temperature values

when the alar m intervened; condensation/evaporation pressure values

at the time of the alarm; alarm delay time from the switch-on of the

connected device; compressor and fan status when the alarm

inter vened the analogue output status isdisplayed). Modulating control of fan speed based oncondensation/evaporation pressure and thermal

load of the unit down to an outdoor temperatureof -10C in c ooling mode, and up to an externalair tempera ture of 30C in heatpump mode. Advanced functions: configured for s erial connec tion (KR S485,

KFTT10, KISI, KRS232 and KUSB accessor y);

configured for management of time bandsand operation parameters with the possibility ofdaily/weekly working programs (KSCaccessories);

monitoring of ser vice schedule and records; self-diagnosis with continuous monitoring of

the functioning of the unit. display of adjustment frequency of

compressor.

STANDARD version

(models TCAI - THAI)

Without tank and pump unit

PUMP version

The P version is complete with circulationpump, expansion tank with a capacity of 14l

with membrane, gauge , safet y valve, 3 Bargmanual air vent, water disc harge.

Version D same as P but with double pump,one on stand-by with automatic activation on atime or alarm basis for equal distr ibution of

operating hours, non-return valves and taps.

TANK & PUMP version

The T version is complete with inertial

storage tank with a ntifreeze heater, circula tionpump, expansion tank with a capacity of 14land membrane, gauge, manual air vent, 3 Bargsafety valve and water discharge. Version U same as T but with double pump,

one on stand-by with automatic acti vation on atime or alarm basis for equal distr ibution ofoperating hours, non-return valves and taps.

Accessories

Factory fitted accessories

DSP Double set-point via digi tal consensus(incompatible with the CS accessor y).

CS Scrolling se t point via analogue signal 4-20 mA (incompatible with the DSP acc essor y).

Accessories supplied loose

KSA - Rubber anti-vibration mountingsKTR - Remote keyboard with rear illuminatedLCD display.KSC - Clock board to displa y date/time and toregulate the machine with dail y/weekly

start/stop time bands, with the possi bility tochange the set-points .KRS485 RS 485 serial i nterf ace card tocreate i nterconnection networ ks between cards(maximum of 200 units at a maximum distance

of 1,000) and buildi ng automation, externalsuper vision systems orRHOSSsupervisionsystems (protocols supported: proprietaryprotocol;Modbus RTU).KFTT10 FTT 10 serial interface card for

connection to super vision s ystems (LonWor kssystem compliant with Lonmar k 8090-10protocol with c hiller profile).KISI CAN-bus serial interface (Controller AreaNetwork compatible with evol ved hydronic

system for integrated comfort

management (protocol s upported CanOpen).KRS232 RS485/RS232 serial convert er forinterconnection between RS485 serial networkand supervision systems with serial connec tion

to PC via RS232 serial port (RS232 cableprovided).KUSB RS485/USB serial c onverter f orinterconnection between RS485 serial networkand supervision systems with serial connec tion

to PC via USB port (USB cable pro vided).


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TCAI-THAI 150 technical data

5

Technical data

Table A: Te chnical data

Technical Data Model TCAI 150 150 P -D 150 T - U

Nominal cooling capacity (*) kW 48,1

Sound pressure (***) dB(A) 58

Scroll compressor controlled by inverter No. 1

Fans no. x kW 2x0,615

Exchanger water contents l 6,3

Water side exchanger nominal water fl ow (*) l/h 8273Nominal pressure drops, water side exchanger (*) kPa 12 - -

Pump external static pressure kPa - 198 196Water tank contents l - - 150

R 407C re frigerant charge See serial no. plate

Pol yester oil charge Check the compressor plate

TCAI electrical data 150 150 P -D 150 T - U

Total absorb ed power (*) kW 18,3 19,62 19,62

Power supply V-ph-Hz 400-3+N-50

Nominal current () A 29 31,5 31,5Max. current A 32,2 34,7 34,7

Starting current (see gener al featur es) A 32,2 34,7 34,7

MODEL THAI 150 150 P -D 150 T - U

Nominal cooling capacity (*) kW 46,4Nominal heating capacity (**) kW 52,9

C.O.P. 3,05

Sound pressure (***) dB(A) 58

Scroll compressor controlled by inverter No. 1Fans no. x kW 2x0,615

Exchanger water contents l 6,3

Water side exchanger nominal water fl ow (*) l/h 7980Nominal pressure drops, water side exchanger (*) 11,5 - -

Pump external static pressure (*) kPa - 199 197

Water tank contents l - - 150R 407C re frigerant charge See serial no. plate

THAI electrical data 150 150 P -D 150 T - U

Total absorbed power (summer operation) (*) kW 18,3 19,62 19,62

Total absorbed power (winter operation) (**) kW 17,35 18,67 18,67Power supply V-ph-Hz 400-3+N-50

Nominal current (summer operation) A 29 31,5 31,5

Nominal current (winter opera tion) A 29,3 31,8 31,8

Max. current A 32,2 34,7 34,7Starting current (see gener al featur es) A 32,2 34,7 34,7

Dimensions 150 150 P -D 150 T - U

L mm 2270

H mm 1650P mm 968

Water connections 2 GM

Drain connecti on - - G M

(*) In the followi ng conditions : with compressorat max RPM, with condenser air inlettemperature 35C; chilled output water

temperature 7C; temperature differential atevaporator 5C.

(**) In the followi ng conditions : with compressorat max RPM, evaporator inlet air t emperature

7C D.B., 6C W.B.; temperature of hot waterproduce 45C, at the same flow rate as insummer oper ation.

(***) Level of sound pressure in dB(A) refers to

a measurement taken at a distance of 5m fromthe unit with a directionality factor of 2 (to obtainthe value in open space, subtract 3 dB(A).

() The C.O.P. calculation in the P, D, T and U

versions does not take the electr ical powerabsorbed b y the pump into consideration.

N.B.:he values for external static pressure of thepumps and the pressure drops of the heat

exchangers are obtained from the graphs onpage 12 in versions P,D,T,U.The values of electrical power consumptionalready take into account the pimps in versionsP,D,T,U.


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TCAI-THAI 150 technical data

6

Energy efficiency with partial loads E.S.E.E.R. index

The E.E.R. represents an esti mate of the energy effic iency of thecooling unit at nominal design conditions. Actually, the operating time ofa cooling unit at nominal conditions is generally less than the operatingtime at partial load. The E.S.E.E.R. (European Seasonal E.E.R.) index estimates the

average seasonal energy efficiency of the cooling unit in four load andoutdoor air temperatur e conditions. In general, two cooling units withthe same E.E.R. value can have different E.S.E.E.R. values. In fact, f oran air cooled cooling unit, the a verage energy efficiency depends both

on design choices as well as on the temperature of the inlet air at thecondensing coil. The E.S.E.E.R. energy index, introduced by the EuropeanCommunit y (E.E.C.C.A.C. project - Energy Efficiency and Certifica tionof Central Air Conditioners), is characterized by the outdoor airtemperatures ( see table I) and for the weighted energ y values that

are assigned to the four l oad conditions considered for calcul ation:100%, 75%, 50% e 25%,

ESEER =3xEER 100% +33xEER75%+41xEER 50% +23xEER 25%

100

where EER100%, EER75%, EER50%, EER25% ,represent the efficiency of

the cooling unit in the four load and temperature conditions set forth i ntable B. Data is also calculated using the Eurovent method. In versions P,D,T,U, the power consumption of the pump is not

considered.

Table B: load and temperature conditions

Outdoor air temperature

Load E.S.E.E.R.

100% 35C

75% 30C

50% 25C

25% 20C

Tables C and "D" show the E.E.R. and E.S.E.E.R. values for eachmodel.The high values of energy efficienc y at partial loads were obtainedthanks to the optimization of the heat exchangers and the variable flowrate compressor.

Table C:E.E.R. - E.S.E.E.R. for TC AI

Model E.E.R. E.S.E.E.R.

150 2,63 4,10

Table D: E.E.R. - E .S.E.E.R. for TH AI

Model E.E.R. E.S.E.E.R.

150 2,54 4,00


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TCAI-THAI 150 electronic controls

7

Microprocessor electronic control

Electronic control

The keyboard allows the user to view the operation temperature and all

the process variables of the unit, and als o allows the viewing andmodification of the set points; it also allows, by means of a password,access to all unit control par ameters for t echnical purposes (accessallowed to authorized personnel only).

ALARM

!

Prg MODE

ONOFF

DISPLAY:displays the numbers and values of all t heparameters (e.g. output water temperature

etc.), the codes of an y alarms and the statusof all the r esources, using strings.

ALARM

!

ALARM key:used to display the code and reset possiblealarms.

Prg

PRG key:used to programme the parametersfundamental to machine operation.

ONOFF

ON/OFF key:allows the unit to be switched on or off.

UP key:used to scroll through the list of parameters,

states and alarms; can be used to changethe set-points.

MODE

MODE - ENTER key:allows c hangeover from cooling to heatpump operation.DOWN key:

used to scroll through the list of parameters,states and alarms; can be used to changethe set-points.

KTR - Remote keyboard

The remote keyboard with displ ay (KTR), allows the r emote control and

display of all the process variables, dig ital and analogue, of the unit. It istherefore possibl e have all the unit functi ons directly under your c ontrolfrom anywhere in the room. It makes it possibl e to set and control the timebands (if the KSC accessor y is present).

ALARM

!

Prg MODE

ONOFF

DISPLAY:displays the numbers and values of all t heparameters (e.g. output water t emper ature

etc.), the codes of any alarms and the statusof all the resourc es, using strings.

ALARM

!

ALARM key:used to display the code and reset possiblealarms.

Prg

PRG key:used to programme the parametersfundamental to machine operation.

ONOFF

ON/OFF key:allows the unit to be switched on or off.

UP key:used to scroll through the list of parameters,

states and alarms; can be used to changethe set-points.

MODE

MODE - ENTER key:allows changeover from cooling to heatpump operation.DOWN key:

used to scroll through the list of parameters,states and alarms; can be used to changethe set-points.

N.B.:The temporary presence of two devices, keyboard built into machine andremote keyboard, will cause the terminal built i nto the machine to bedisabled in favour of the KTR user in terface.


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TCAI-THAI 150 serial connection

8

Serial communication

KRS485 Serial interface Supervision

The electronic controller, provided with all the units, is c onfigured for

dialogue with an external BMS through a serial communication lineusing the KRS485 serial interface accessor y (proprietary protocol orModBus RTU) and the following c onverters:

KRS232 RS485/RS232 serial converter for interconnection betweenRS485 serial network and super vision s ystems with serial connectionto PC via RS232 serial port (RS232 cable provided).KUSB RS485/USB serial converter for interconnection betweenRS485 serial network and super vision s ystems with serial connectionto PC via USB port (USB cable pro vided).

Generally speaking, a super vision sys tem allows access to all the unit

functions, s uch as: setting all the values accessible b y the keyboard; reading all t he digital and analogue inlet and outlet processvariables;

read the various alar m codes and if necessar y reset them; reading all t he programming p arameters and adjusting them.

KRS485 KRS485 KRS485

KRS232

KUSB

KSC - Clock cardDisplay example

The insertion of the clock card (KSC) enables flexible, efficient useof the unit, displayi ng the date/time and making it possible to set a

selection of daily/weekl y start/stop time bands on the unit, with thepossibilit y to vary the set-point.

ALARM

!

Prg MODE

ONOFF


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TCAI-THAI 150 performance

9

Performance data

Table E: cooling capacit y TC AI 90Hz

Ta (C)

25 30 35 40 45

QF P QF P QF P QF P QF PModel

Tue(C)

kW kW kW kW kW kW kW kW kW kW-10 26,82 14,93 25,00 15,97 23,19 17,14 21,57 18,63 - -

-6 31,94 15,12 29,90 16,18 27,80 17,36 25,82 18,85 - -

-5 33,33 15,17 31,21 16,23 29,04 17,41 26,96 18,90 24,87 20,40

-3 36,25 15,26 34,00 16,32 31,66 17,51 29,36 19,00 27,07 20,510 41,06 15,39 38,57 16,46 35,95 17,65 33,31 19,15 30,67 20,66

3 46,46 15,52 43,69 16,59 40,76 17,80 37,74 19,29 34,72 20,79

5 50,82 15,57 47,28 16,67 44,40 17,89 41,18 19,38 38,18 20,946 53,01 15,64 49,74 16,90 46,25 18,10 42,99 19,56 39,70 21,20

7 55,20 15,71 52,19 17,11 48,10 18,30 44,80 19,74 41,21 21,40

8 57,04 15,98 53,85 17,27 49,88 18,49 46,67 19,92 42,70 21,63

9 58,89 16,25 55,51 17,43 51,66 18,68 48,55 20,10 44,19 21,9010 60,73 16,52 57,17 17,60 53,43 18,87 50,42 20,28 45,68 22,13

12 66,96 16,69 63,17 17,73 59,10 18,98 54,76 20,60 50,42 22,21

15 75,50 16,81 71,32 17,85 66,81 19,11 61,96 20,72 - -

150

18 85,04 16,93 80,43 17,97 75,44 19,23 70,05 20,84 - -

Tue = Evaporator water outlet temperature(T inlet/outlet = 5 C) .Ta= Dry bulb ambient temperatureQF = Cooling capacity (evaporator foulingfactor equivalent to 0.35 x 10

-4m C/W)

P = Absorbed electrical power

% variation of cooling capacity with reference to nominal condition: Condenser i nlet air temperatur e 35C, chille d output water te mper ature7C, with temperature difference of 5C for different values of frequency

of adjustment upon variation of the condenser inlet air temperature(2545C).

% variation of power consumption with reference to nominal condition:Condenser i nlet air temperatur e 35C, chille d output water te mper ature7C, with temperature difference of 5C for different values of frequenc y

of adjustment upon variation of the condenser inlet air temperature(2545C).

0%

20 %

40 %

60 %

80 %

100%

120%

V(%)

25 30 35 40 45

Ta (C)

90 Hz

70 Hz

50 Hz

35 Hz

0%

20 %

40 %

60 %

80 %

100%

120%

V(%)

25 30 35 40 45

Ta (C)

90 Hz

70 Hz

50 Hz

35 Hz

V= % variation in yieldTa= Dry bulb ambient temperature

N.B.:

For P,D,T,U versions add the electrical powerabsorbed b y the pump (see Electricalconnections).With evaporator outlet waterinclusive between -10C and 3C the

calculation was perf ormed considering 30%glycol water.


10/20


10

Performance data

Table F: cooling capacit y THAI 90Hz

Ta (C)

25 30 35 40 45

QF P QF P QF P QF P QF PModel

Tue(C)

kW kW kW kW kW kW kW kW kW kW

-10 25,88 14,93 24,11 15,97 22,37 17,14 20,81 18,63 - --6 30,81 15,12 28,83 16,18 26,82 17,36 24,90 18,85 - -

-5 32,15 15,17 30,11 16,23 28,02 17,41 26,00 18,90 24,00 20,40

-3 34,97 15,26 32,79 16,32 30,54 17,50 28,32 19,00 26,11 20,500 39,61 15,39 37,20 16,46 34,68 17,65 32,13 19,15 29,58 20,65

3 44,81 15,52 42,14 16,59 39,32 17,78 36,40 19,29 33,49 20,79

5 49,02 15,57 45,61 16,70 42,83 17,89 39,73 19,38 36,83 20,946 51,14 15,64 47,98 16,90 44,62 18,10 41,47 19,56 38,29 21,17

7 53,25 15,71 50,35 17,11 46,40 18,30 43,22 19,74 39,76 21,39

8 55,03 15,98 51,95 17,27 48,12 18,49 45,03 19,92 41,19 21,63

9 56,80 16,25 53,55 17,43 49,83 18,68 46,83 20,10 42,63 21,8910 58,58 16,52 55,15 17,60 51,55 18,87 48,64 20,28 44,06 22,13

12 64,59 16,69 60,94 17,73 57,02 18,98 52,83 20,60 48,64 22,21

15 72,84 16,81 68,80 17,85 64,45 19,11 59,77 20,72 - -

150

18 82,04 16,93 77,59 17,97 72,77 19,23 67,57 20,84 - -

Tue = Evaporator water outlet temperature(T inlet/outlet = 5 C) .Ta = Dry bulb outdoor air t emperatureQF = Cooling capacity (evaporator foulingfactor equivalent to 0.35 x 10

-4m C/W)


% variation of cooling capacity with reference to nominal condition:Condenser i nlet air temperatur e 35C, chille d output water te mper ature

7C, with temperature difference of 5C for different values of frequencyof adjustment upon variation of the condenser inlet air temperature

(2545C).

% variation of power consumption with reference to nominal condition:Condenser i nlet air temperatur e 35C, chille d output water te mper ature

7C, with temperature difference of 5C for different values of frequenc yof adjustment upon variation of the condenser inlet air temperature

(2545C).

0%

20 %

40 %

60 %

80 %

100%

120%

V

(%)

25 30 35 40 45

Ta (C)

90Hz

70Hz

50Hz

35Hz

0%

20%

40%

60%

80%

100%

120%

V(%)

25 30 35 40 45Ta (C)

90 Hz

70 Hz

50 Hz

35 Hz

V= % variation in yieldTa = Dry bulb outdoor air t emperature

N.B.:For P,D,T,U versions add the elec trical powerabsorbed b y the pump (see Electrical

connections).With evaporator outlet water incl usive between-10C and 3C the calculati on was performedconsidering 30% gl ycol water.


11/20


11

Performance data

Table G: heating capacity TH AI 90Hz

Tuc (C)

35 40 45 50 53

QT P QT P QT P QT P QT PModel

Ta(C)

UR(%)

kW kW kW kW kW kW kW kW kW kW

-15 85 27,58 13,82 - - - - - - - --10 85 32,83 14,13 32,47 15,35 32,47 16,73 - - - -

-7 85 36,12 14,30 35,58 15,53 35,58 16,92 35,52 18,50 - -

-5 85 38,43 14,38 37,72 15,23 37,72 16,81 37,53 18,56 - -0 85 44,82 14,58 43,80 15,71 43,80 17,07 43,35 18,68 43,16 19,75

5 85 52,41 14,78 50,89 16,19 50,90 17,33 50,10 19,00 49,67 20,09

7 85 54,50 15,01 52,90 16,21 52,90 17,35 52,33 18,89 51,39 19,9610 85 58,91 15,14 56,83 16,13 56,82 17,64 55,80 19,17 55,19 20,26

15 85 69,24 15,36 66,22 16,00 66,22 18,12 64,61 19,65 63,61 20,76

150

20 85 81,70 15,55 77,58 16,52 77,58 18,33 75,30 19,86 73,86 20,98

Tuc = Condenser water outlet temperature(T inlet/outlet = 5 C) .

Ta= Dry bulb ambient temperatureQT = Heating ca pacity (evaporator foulingfactor equivalent to 0.35 x 10

-4m C/W)


% variation of heating capacity referred to nominal condition:

Evaporator i nlet air temperature 7C (D.B.) 6C (W.B.), output hot watertemperature 45C at water fl ow rate as in summer opera tion, fordifferent values of frequency of adjustment upon varia tion of theevaporator inlet air temperature (-1520C).

% variation of power consumption referred to nominal condition:

Evaporator i nlet air temperatur e 7C (D.B.) 6C (W.B.), output h ot watertemperature 45C at water fl ow rate as in summer operation, fordifferent values of frequency of adjustment upon varia tion of theevaporator inlet air temperature (-1520C).

HZ 90

HZ 70

HZ 50

HZ 35

V(%)

0%

20%

40%

60%

80%

100%

120%

-15 -10 -5 0 5 10 15 20 25Ta (C)

140%

160%

0%

20%

40%

60%

80%

100%

120%

-15 -10 -5 0 5 10 15 20 25

HZ 90

HZ 70

HZ 50

HZ 35

Ta (C)

V(%)

V= % variation in yi eldTa= Dry bulb ambient temperature

N.B.:

For P,D,T,U versions add the elec trical powerabsorbed b y the pump (see Electricalconnections).


12/20


12

Pressure drops and residual static pressures

Graph 1: Heat exchang er pressure drops TCAI-THAI 150

P(kPa)

1,00

10,00

100,00

3

000

4

000

5

000

6

000

7

000

8

000

9

000

1

0000

2

0000

3

0000

4

0000

6

0000

7

0000

8

0000

9

0000

5

0000

1

00000

G (l/h)

Graph 2: Re sidual static pressure TCAI-TH AI 150 P,D,T,U

P D

T U

2000 40000 6000 8000 10000 12000 14000 16000 18000

0,00

50,00

100,00

150,00

200,00

250,00

G (l/h)

P

(kPa)

Pressure drop calculation

The water flow to the exchanger iscalculated with the following formula:

G = (Q x 0,86) : T

Where:G (l/h) = water fl ow at the heat exchanger;

Q (kw) = exchanged po wer, which may be QF(for the evaporator) orQT (f or the condenser),depending on the heat exchanger in questi on;

T (C) = temperature differential;

The pressure drops can be seen in the graph

alongside or calcul ated using the followingformul ae

pw= pwnomx (G:Gno m)2

Where:

pwnom (kPa) = nomi nal pressure drop inthe heat exchanger in question (Technical data

table):G (l/h) = water fl ow at the heat exchanger in

question;Gnom (l/h) = nomi nal water flow at the heatexchanger in question (Technical data).

P = Pressure drop kPa

G = Water flow rate l/hP D = Residual static pressure P,DT U = Residual s tatic pressure T,U

N.B.:for all machi nes, always refer to the oper atinglimits and the permitted T temperaturedifferences.


13/20

TCAI-THAI 150 operating limits

13

Operating limits

Cooling mode(summer operation) TCAI-THAI 15 0

Te

(C)

Tu (C)

200 255-15 10-10 15-5 12

50

45

40

3530

25

20

15

10

5

0

-5

-10

Te (C) = outdoor air temperature D.B. coil inletTu (C) = outlet water temperature Temperature differential at the evaporator: t=38C.

Minimum water pressur e = 0,5 barg

Maxi mum water press ure = 3 barg

N.B.:Maxi mum inlet water temperature 25C

Heating mode

(winter op eration)THAI 150

Tu(C)

Te (C)

10 15 20 25-15 -10 -5 0 5 30 35

55

50

45

40

35

30

25

53

-7

Te (C)= outdoor air temperature W.B. coil inletTu (C) = outlet water te mperature Temperature dif ference at the condenser: t=38C.

Minimum water pressur e = 0,5 barg Maxi mum water pressure = 3 barg

N.B.:

Maxi mum inlet water temperature 48C

Use of antifreeze solutions

Use of ethylene glycol is a must whenhydraulic circuit water drainage is not foreseenduring winter. T he addition of gl ycol changesthe physical properties of the water andconsequently the performance of the unit. The

proper gl ycol percentage to be put into thesystem to protect it from frost can be obtainedfrom the har dest operation c onditions chosenamong those detailed below.

Anti-f reeze protection during seasonal stop

Table H shows the multipliers to obtain thechanges of the unit performances according t othe necessary percentages of ethylene glycol. The multi pliers refer to the followingconditions: condenser input air temperature35C; chil led water tempera ture 7C;

tempera ture differential at evaporator 5C. For different operating c onditions the samemultipliers can be used sinc e the amount oftheir change is negl igible.

Table "H"

Min. outdoor air temperature C 2 0 -3 -6 -10

% glycol in weight 10% 15% 20% 25% 30%

Freezing temperature C -5 -7 -10 -13 -16

fc G 1,008 1,028 1,051 1,074 1,100fc pw 1,053 1,105 1,184 1,237 1,316

fc QF 0,991 0,987 0,982 0,978 0,974

fc P 0,996 0,995 0,993 0,991 0,989

fc G = Correction factor of the glycol water flowto the evaporatorfc pw = multiplier of the pressure drops

through the evaporatorfc QF = Cooling capacity correction factor.fc P = correction factor of the total absorbedelectric power


14/20

TCAI-THAI 150 dimensions and footprints

14

Standard and P,D,T,U dimensions and footprints

3

21

8 9

a

d e fb

4

5

6

7 7n

m ul

3

11

10

18

12

12

p o

hg i

q

c

13

14

15

16

17

1. Control board2. Main switch3. Fan4. Wire inlet5. Water inlet

6. Water outlet7. Anti vibration feet (KSA)8. Compress or9. Plate heat exchanger10. Tank (T/U)11. Expansion vessel12. Pump/Pumps (P,D,T,U)13. Protection gr ille14. Finned coil15. Condensation drain (models THAI) e 29

16. Gauge (only P,D,T,U.)17. Water drain (onl y T.U.)18. Inverter

Model 150

a mm 1650

b mm 968

c mm 2270

d mm 55e mm 855

f mm 75g mm 193

h mm 835

i mm 730

l mm 331m mm 231

n mm 48

o mm 480p mm 25

q mm 850

Clearances and positioning

L1

L3 L2

L1

H

Model 150

L1 mm 800L2 mm 800

L3 mm 1.600

H mm with open outlet

Installation The unit is designed for outdoor installation. Segregate the unit if installed i n areas accessible to persons under14 years of age. It should be placed in compliance with the minimum recommended

clearances, bearing in mind access to water and electrical connectionslocated on the right-hand side . Whatever way it is installed, the coil inlet air temperature (ambientair) must remain within the set limits. The unit cannot be i nstalled on brac kets or shel ves.

W eightsEmpt y weight of the packagedunit (the weight of the unit whenfully loaded can be obtained by

adding the water c ontent

indicated in the Hydraulicconnectionschapter).

Model TCAI THAI

150 kg 550 566

150 P kg 594 616150 D kg 632 649

150 T kg 732 749150U kg 752 769

N.B.:

The unit is fit ted with condensate drai n pan with 2 ductabl e drains THAI.

Handling

Movement of the unit shoul d be performed with car e, in order to avoiddamage to the e xter nal struc ture and to the internal mechanical andelectrical components. In order to ensure that the unit is handled correctl y,bear the centre of gravity indicated on the packaging in mind. The unit should be correctly levelled and positi oned on a supporting

surface capable of sustaining i ts full weight.

Do not stack the units. The unit cannot be i nstalled on brackets or shel ves. The temperature limits for s torage are -945C.


15/20

TCAI-THAI 150 water connections

15

Water connections

The unit is equipped with male-thr eadedwater connections and a manual air bleedvalve located inside the casing near thewater co nnections. It is advisable to install interception

valves to isolate the unit from the rest of theunit and the el astic connection joints.

It is obligatory to install a networ k filt eron the machine's water inl et. The water flow through the heat-exchanger should not fall below a val uecorresponding t o a temperature dif ferential

of 8C. During long periods of i nacti vity, it isadvisable to drai n the system of water.

Alternatively, it is possible to addethylene glycol to the water circuit (see "useof antifreeze solutions")

Version - STAND ARD

AP1

ECH

RE

ST1

VSM

PD

ST2

CF

S

Version D - DOUBLE PUMP

AP1

ECHST1

ST2

S

PDRE

VSM

VSVE

M

SVR

VR

R PU

R PU

R

R

VSM

S

CF

Version U TANK and PUMP with DOUBLE PUMP

AP1

ECH

RE

S

PD

ST2

ST1

S

VSM

VSM

VR

VR

R

R

PU

PU

R

R

VSM

VSM

S

M

SA

RAA

VE VS

CF

S

Version P SINGLE PUMP

ST1

ST2

S

RE

ECH VSM

VSVE

M

PU

SPD

AP1

CF

Version T TANK&PUMP

AP1

ECH

RE PD

ST2

S

ST1

VSM

S

VE

RAA

M

VS

SA

VSM

PU

CF

S

CF = Refrigerant circuitRE = Evaporator antifreeze heater;ECH = Plate heat exchangerPD = Water differential pressure switch;ST1 = Summer-winter inl et temperature sensor;

ST2 = Summer-winter outlet temperature sensorAP1 = Microprocessor electronic controlVSM = Manual air bleed val veVS = Safety valveSA= Storage tank

PU = Circulation pumpVE = Expansi on tankS = Water drain;M = Pressure gaugeRAA = Stor age heater anti-freeze heating element

RI = Interc ept valveVR = Non-return valve

ModelPUMP and TANK & PUMP versions water data

150

Storage tank water content l 150

Total water contents l 180

Safet y valve (also PUMP) kPa 300Expansion tank (also PUMP) l 14


16/20

TCAI-THAI 150 electrical connections

16

MIQE = Electrical board internal termi nal board;MEU = External user t erminal board;IG = Door interlocking isolator;CP = Pump control (onl y for version with

STANDARD hydraulics)LFC = Compressor operation indicator l ight

( power input 24 V AC)LBG = General lock lampJ16 = 6-way telephone connector (RJ12);J19 = Connector for fitting

KSC accessory;J20 = Connector for fitting access ory

KRS485, KFTT10 o KISI;KSC = Clock card (accessor y);KRS485 = RS485 serial interf ace

(accessor y);KRS232 = RS 485/RS232 converter

(accessor y)KUSB = RS485/USB converter (accessory);KTR = Remote keypad (access ory);

L1 = Line 1L1 = Line 2L1 = Line 3N = NeutralPC = Personal computer

PE = Earthing cla mp;SCR = Remote control s elector

(dry contact control)SDS = Dual set point selector

(Control with clean contac t)

- - - - = Connections provided by the ins taller-------- = 6-way telephone wire

(ma ximum distance 50 m, for greaterdistances contac tRHOSScustomerservice)

Electrical connections

TCAI-THAI 150Power supply 230V/5A (AC1)

L1

L2

L3

N

400V-3ph+N-50Hz

MEUMIQE

SEI

PE

IG

SCR

LFC

LBG

CP

KRS232/ KUSB

+

GND

KRS485

KSC

+

GND

J20

SERIAL

CARD

J16

INTERFACE

PLAN

J19

CLOCKCARD

PC

7.8

7.9

7.3

7.4

7.1

7.2

7.5

N

7.6

7.7

SDS

J8

N8

F8

KTR

ALARM!

Prg MODE

ONOFF

The electrical board can be accessed fromthe front panel of the unit.

The connections should be made by skilledpersonnel, in compliance with currentregulations and following the electrical wiringdiagram incl uded. Always install a general isolator in a

protected area near the appliance with adelayed characteristic curve of a suitabl ecapacity and breaking c apacity. Make sure thegeneral isola tor includes a 3mm mini mumopening dist ance between contacts.

Earth connection is compulsory by law andsafeguar ds the user while the machine is inuse.

W ARNING!

The diagrams onl y show connections to bemade by the installer.

Cable section

Line section mm 10

PE sec tion mm 10

Remote control section mm 1,5


17/20

notes

17

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18/20

notes

18

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19/20


20/20

RHOSS S.P.A. declines all responsabilities forpossible mistakes in the catalogue and reserves theright to alter the features of their products withoutnotice in the interests of continuous improvement.

TC A I-T H A I 1 5 0

Mich range

RHOSS s.p.a.Via Oltre Ferrovia, 32 - 33033 Codroipo (UD) - Italytel. +39 0432 911611 - fax +39 0432 [email protected] - www.rhoss.it - www.rhoss.com

IRSAP-RHOSS Clima Integral S.L.C/ Leonardo da Vinci, 4 - Pol. Ind. Cam Ral08850 Gav (Barcelona) - Spaintelf. +34 93 6334733 - fax +34 93 [email protected] - www.rhoss.es

Ir Group S.A.S.

7 rue du Pont Lunettes - 69390 Vourles - Francetl. +33 (0)4 72318631 - fax +33 (0)4 [email protected]

RHOSS Deutschland GmbHHlzlestrae 23, D-72336 Balingen, OT Engstlatt - Germanytel. +49 (0)7433 260270 - fax +49 (0)7433 [email protected] - www.rhoss.de

Sedi commerciali Italia: / Italy branch offices:

Area Nord-Est: 33033 Codroipo (UD) - Via Oltre Ferrovia, 32tel. +39 0432 911611 - fax +39 0432 911600

Area Nord-Ovest: 20041 Agrate Brianza (MI)Centro Colleoni - Palazzo Taurus, 1

tel. +39 039 6898394 - fax +39 039 6898395

Area Nord-Ovest - Uffici di Firenze:50127 Firenze - Via F. Baracca, 148/Rtel. +39 055 4360492 - fax +39 055 413035

Area Centro-Sud: 00199 Roma - Viale Somalia, 148tel. +39 06 8600699-707 - fax +39 06 8600747

Area Sud - Filiale di Napoli:80143 Napoli - Via G. Porzio - Centro Direzionale - Isola G8tel. +39 081 7879121 - fax +39 081 7879135

Area Sud - Uffici di Bari:70124 Bari - Via Lucarelli, 60/Ntel. +39 080 5013644 - fax +39 080 5021159

Tcai Thai 150 Katalog PDF 648 Kb Angl. Jaz.

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