Manual controlador mquay

7/25/2019 Manual controlador mquay

1/64

Service Guide Book

Contents

1. Model name ...................................................................

2. Conversion Table ............................................................

3. Product Mainboard vs. Handset Matrix ............................

4. Controller History ............................................................

5. Handset Operating Guide

a. G6 ...................................................................

b. G7 ...................................................................

c. SLM3 ................................................................

d. Netware 1 and 2 ..............................................

e. Sequential Controller .......................................

f. PAC-204RC Controller ......................................

6. Self Diagnosis Table .......................................................

7. Troubleshooting Guide ...................................................

8. Modification to Auto Restart ............................................

9. Auto Random Restart & Hot Keep Selection

a. Auto Random Restart .......................................

b. Hot Keep ..........................................................

10. Controller Configuration

a. Sequential Controller .......................................

b. W1V2 for Water Fan Coil Unit ..........................

c. W1V3 for Water Fan Coil Unit ..........................

d. Netware 1 ........................................................

e. MCH01 for Mini Chiller ....................................

f. Conversion of C3 Board (wireless to wired) ......


2/64

f. Conversion of C3 Board (wireless to wired) ......

1. OYL Product Model Name Descripti

Description Generic

Model Name

Wall Mounted Fan Coil Unit WM

Wall Mounted Inverter Fan Coil Unit WMV

Ceiling Exposed Fan Coil Unit CE

Ceiling Cassette Fan Coil Unit CK

Ceiling Concealed Fan Coil Unit CC

Ducted Split Blower unit SB

Chilled Water Fan Coil Unit CW

Air Cooled Mini Chiller AC / 4AC

Single Split Condensing Unit SL / 4SL

Single Split Inverter Condensing Unit SLV / 5SLX

Modular Split Condensing Split MSS / 4MSS

Multi Split Series MSD / 4MSD

MST / 4MST

MSH

Horizontal Condensing Unit HDC

Vertical Condensing Unit VCU

Air Cooled Roof Top

Packaged Air Conditioner RT / 4RT


3/64

Product Nomenclature

e.g.

X 4 WM V 10 F R N - XXXX

1 2 3 4 5 6 7 8 9

1. Brand name; e.g. M = McQuay

2. Type of refrigerant; 4=R407C; 5=R410A; Omitted if R22

3. Range of product

4. System; V=Inverter; S=Multi Split; Omitted if normal system

5. Capacity; e.g. 10 = 9,000 Btu/hr

6. Generation or Series7. R for heatpump model;

W for Chilled water model ;

Omitted if for cooling model only.

8. Type of application for chilled water fan coil unit;

N=Valveless application, Omitted if valve application

9. Product nomenclature

Ceiling Cassette Front Panel

e.g.

X PL CK A R - XXX

1 2 3 4 5 6

1. Brand name; e.g. M = McQuay

2. PL = front panel

3. CK = ceiling cassette unit

4. Series; A = A series; B = B series

5. Model; R = heatpump; W=chilled water; Omitted if cooling m

6. Type of handset / specification


4/64

(1) COOLING CAPACITY

Btu/Hr MBH kCal/Hr1 0.001 0.252

1000 1 252

3.968 0.004 1

3412 3.412 860.04

(3) FLOW RATE

L/s m3/hr m3/sU.S

GPM

1 3.6 0.001 15.8

(2) PRESSURE

psi kg/cm2

W.G.

(in.) (ft.)1 0.07 27.7 2.309

14.22 1 394.08 32.84

3.61 x 10 -2 2.538 x 10-3 1 0.083

1.45 x 10-4

0.1 x 10-4

0.004 3.349 x 10

2. Conversion Table


5/64

(4) TEMPERATURE

F = (1.8 x C) + 32 C =

(5) VELOCITY

fps m/s fpm

1 0.305 60

3.281 1 196.9

0.017 0.005 1

(7) AREA

in2 ft2 m2

(6) VOLUME

L m3U.S.

G.P.M.

1 0.001 0.2641000 1 264

3.785 3.785 x 10-3 1

28.315 0.028 7.48


6/64

inboard

vs.

Hands

etMatrix

Board(IC)D2.0

U1.4

Mechanical

U1_

SB125

SQCH

VA1.0

*MS10.0

H

andset

(PAC204RC)

(S

Q1.0)

Standard

Optional

G7

-

G7

SLM3+AC5300/Ne

tware2

G7

-

G7

-

G7Turbo

-

G7

SLM3+AC5300/Ne

tware2

G7

SLM3+AC5300/Ne

tware2

G7

SLM3+AC5300/Ne

tware2

G7

SLM3+AC5300/Ne

tware2

G7

SLM3/AC5300

G7

SLM3/AC5300

SLM3

-

SLM3

-

mp

B/BR,125B

SLM3

-

0C/CR

SLM3

-

00B4/BR4

SequentialLCD

-


7/64

oard(IC)

W1V2

W1V3

SZMC01

MCH03

Handset

Standard

Optional

-

-

-

-

SmartManager

-

SmartManager

-

G6

SLM/Netware2

G6

SLM/Netware2

G6

SLM/Netware2

SLM/Netware2

-

Withoutco

ntroller

-


8/64

OARDDEVELOPM

ENT

HIST

ORY

HAN

DSET

MODEL

REMA

RKS

WIRELESS

WIRED

COOLING

HEATPUMP

G3

-

WM10/15D

WM10/15DR

Coppersensor

WM20/25C

WM20/25CR

G3

-

WM07/10E

-

Coppersensor

G3&G6

-

WM10/15D

WM10/15DR

WM20/25C

WM20/25CR

G3&G6

-

-

WM07/10ER

WM10/15FR

G3

-

WM07/10E

-

G6

-

WM10/15F

G3&G6

SLM2(10corewire)

CK-A

CK-AR

CE-C/CE-D

CE-CR/CE-DR

CC-B/MSB/HSB

CC-R/MSB-R/

HSB-R

-

-

AC(40-125)B

AC(40-125)

BR

Cooling&H

eatpump

G6

Netware-1

WM-FW/CE-DW

/CC-CW/CK-AW/HSB-BW

Convertib

lePCB

-

SequentialController

SB(150-500)B

SB(150-500)BR

Mutiplecompressor

G6

-

WM(10-25)F

-

Cooling

only

G6

-

-

WM(10-25)

FR

Heatpum

ponly

G6

SLM3(4corewire)

CE-D/CK-A/

CE-DR/CC-

CR/

Cooling&heatpump

CC-C

CK-AR

G6/G7

-

WM(10-25)F

-

Cooling

only

-

-

AC/4AC(40~58)A,

AC/4AC(40~5

8)AR,

Cooling&h

eatpump

AC/4AC75~125B

AC/4AC75~12

5BR

G7Turbo

-

WMV10FR

Insetfornonly

SLV10BR

-

Sequentialcontroller

SB(150-500)D

SB(150-500)DR

Multiplecompressor


9/64

RVSPCBOARDCONFIGUR

ATION

MainBoard

mmunicatew

ith

OMC-03S

ongJiaJiaLihC

2C3C5D1.0U1.3U1.4W1V

2W1V3

=

X

X

X

=

X

X

X

=

X

X

X

X

X

=

X

X

X

=

X

X

X

=

X

X

X

X

X

=

X

X

=

X

X

X

X

X

X

X

X

=

X

X

X

X

X

X

X

X

=

X


10/64

G6 Remote Control

1 - ON / OFF SWITCH

Press to start the air conditioner unit

Press again to stop the unit

Blue color - Cooling only

Pink color - Heatpump

Red color - Chilled Water Heatpump (No auto mode)

2 - TEMPERATURE SETTING

Set the desire room temperature.

Press button to increase or decrease the set temperature. Setting range a

setting (60F to 80F)(Optional setting from 20C to 30C).

Pressorbutton simultaneously will toggle the temperature setting be

3 - AUTOMATIC AIR SWING

Press the button to activate the automatic air swing function. The swing a

horizontal to 25 to bottom.

5.5.5.5.5.Handset OperHandset OperHandset OperHandset OperHandset Operaaaaating Guideting Guideting Guideting Guideting Guide


11/64

5 - TIMER SETTINGl Press set button to activate the timer setting (from 1 hour to 15 hour) of

will be in"On" or "Off" condition after the set time depending to the curre

"On" to Off" or vise-versa)

l To cancel the timer setting, press the button continuously until the timer

6 - OPERATING MODESl Press the "mode" button for select the type of operating mode.

l Cooling only unit:

CoolDryFan.

l Heatpump unit :

CoolDryFan Heat.

7 - FAN SPEED AND VENTILATION MODE SELECTIONl Press the button until the desired fan speed is achieved.

8 - SIGNAL TRANSMISSION INDICATIONl Blink to confirm the last setting has been send to the unit.


12/64

G7 Controller1

2

34

5

6

7

8

9

10

11

12

1. Transmission sourcel The source where the signal will be transmitted.

2. Signal Transmission indicationl Blink to confirm the last setting has been send to the unit.

3. On/Off Buttonl Press once to start the air conditioner.

l Press again to stop the unit.

4. Temperature settingl To set the desired room temperature, press the button to increase or dtemperature.

l The temperature setting range is from 16C to 30C (Optional setting

l Press both buttons simultaneously to toggle the temperature setting b


13/64

7. ON timer settingl Press the SET button will activate the on timer function.

l Set the desired on time by pressing the SET button continuously. If the

the air conditioner will turn on at 7.30am sharp.

l Press the CLR button to cancel the on timer setting.

8. OFF timer settingl Press the SET button will activate the off timer function.

l Set the desired off time by pressing the SET button continuously.

l Press the CLR button to cancel the off timer setting.

9. Automatic air swingl Press the SWING button to activate the automatic air swing function.

l To distribute the air to a specific direction, press the SWING button an

move to the desired direction and press the button once again.

10. Sleep mode settingl Press the button to activate sleep mode. This function is available und

AUTO mode.l When it is activated in COOL mode, the set temperature will be increa

1C after 1 hour and 2C after 2 hours.

l When it is activated in HEAT mode, the set temperature will be decrea

2C after 1 hour and 3C after 2 hours.

11. Clock time settingl

Press button + or to increase or decrease the clock time.

12. Turbo function (optional only applicable to inverter ul Press button for fast cooling or heating operation.

l The temperature will be increased internally if it is in the HEAT mode,

DRY mode. Fan speed will be increased if it is not at maximum speed

l The temperature & fan speed will resume to user setting if the button i

20mins.

l Available under HEAT, COOL & DRY modes only.


14/64

SLM3 Controller

SLM AC-53

1 - "ON/OFF" switch Press to start the air conditioner unit.

Press again to stop the unit.

2 - Temperature setting

Set the desired room temperature. Press button to increase or decrease the

set temperature. Setting range are between

16C to 30C (60F to 80F).

3 - Operation Modes Press the "mode" button for select the type

of operating mode.

- Cooling Only :

COOL, DRY, FAN

- Heat Pump :

AUTO, COOL, DRY, HEAT, FAN

(AUTO mode is represented by both

COOL d HEAT LED li ht )

6 - "Sleep" mode Press button to act

This function can o

"cool" or heating m

activated under "co

set temperature wil

minutes, 1C after

hours. If it is activa

operation, the set te

decreased 0.5C a

1 hour and 2C afte

7 - Air Swing Press button to act

swing function.

8 - Sensor Infra red sensor to

i l t ll


15/64

Netware 1 and Netware 2 Controller

A - [Current time, Start / Stop Time] DisplayDisplay the current time as well the start & stop time progra

B - [Key Lock] Display

Display indicates when the key lock function is activated

C - [Fan Speed] Display

Display the fan speed setting. [Auto/High/Medium/Low]

D - [Operation Mode] DisplayDisplay the current mode of operation

E - [Sleep] Display

Display the sleep/energy saving status

F - [Swing] Display


16/64

1. ON / OFF

1 ON/OFF button

Starting operation

When the unit is turned off, press the [ON/OFF] button. The op

and the unit is turned on.

Stopping operationWhen the unit is turned on, press the [ON/OFF] button. The op

extinguished and control are turned off.

2 Fan

l Press FAN button to select Auto, High, Medium or Low fan

3 Sleep

l Press SLEEP button to activate the sleep mode or energy s

2

3

4

O


17/64

2. Operation selection and Room temperature adjustment

1 Press the temperature button and set the temperatureof yo

the or once, temperature changes by 1C [ or 1F]

Temperature can be set within the range 16C ~ 30C or 61F ~

During fan mode, temperature can not be set.

Normally the panel will show room temperature.

1 Press and together, the unit of temperature wil

and vice-versa.

2 Mode button

2


18/64

3. Time setting

Time Setting

1 Clock Key

l Press the key once to set the clock mode. Press the key again to disable

6 7-day Timer Key

l The timer can be turned on or off by pressing the timer on or off keys.

2 Day Key

l When the control is in set clock or set timer modes, pressing the day key

3 Hour Key

l When the control is in set clock or set timer modes, pressing the hour ke

4 Minute Keyl When the control is in the set clock or set timer modes, pressing the min

minute.

Other functions

Key Lock

1 2 3 45

Current Time

Display

Timer Hold /Resume Display


19/64

Sequential Controller(Standard for cooling and heatpump)

Sequential Controller LCD Display

A : Time display

B : Error indication

C : Compressor running display (up to 4 compressors)

D : Key lock display

E : Heater display (up to 2 heaters)

F : Energy saving mode display

G : Compressor defrost cycle display (up to 4 compressors)

H : Operation mode display

I : Temperature set display

1. ON/OFF keyPress once to start the air conditioning unit.

Press again to stop the unit.

The operation lamp next to the key lights up and goes off respect

running or not running.


20/64

4. Auxiliary Electric HeaterIf the "HEAT" mode provides insufficient heating to a room even a

temperature setting (30C), press the HEATERkey to activate the

heater. For models with two heaters, consecutive press of the keyone or both heaters active.

5. Temperature Setting

To set the desired room temperature, press or t

the set temperature in the range of 16C to 30C.

Press both and simultaneously to toggle between

6. Time Setting

Real time Clock

Press the CLOCKkey once to activate set clock mode.

Press again to disable set clock mode.

Under set clock mode, the time of the present day can be set by p

MINUTE, HOURand DAYkey.

7-days timer

Press the ON TIMERkey to activate auto-ON timer mode. Under

respective MINUTE, HOURand DAYkey to select the time of the

conditioning unit is to automatically start running. Press the ON T

save the setting.

Press the OFF TIMERkey to activate auto-OFF timer mode. Und

respective MINUTE, HOURand DAYkey to select the time of the

conditioning unit is to automatically stop running. Press the ON T

save the setting.

Then to activate the 7-days timer, press and hold the TIMER ACT"TIMER ACTIVE" appears on the LCD screen. Repeat the same

days timer.

7 Other Function


21/64


22/64


23/64

1- 3 Room temperature adjustment

To change room temperature

Press the room temperature button and set the roomtemperature of your choice.

Press or once changes the setting by

1C .

If the pressing is continued, the setting continues to

change by 1C.

* Indoor temperature can be set within the following

range. Cooling 19 ~ 30C

* It is impossible to set the room temperature by the air-

blow operation.

Press and together, the unit of

temperature change "C " (degree-centigrade) and "F"(degree-Fahrenheit)

Set temperature display and

room temperature display

A

1- 4 Time setting

Clock key

Press the key one time will activate set clock mode.

Press the key again will disable set clock mode.

~Under set clock mode, the real time clock and

present day setting can be changed by pressing Day key,

Hour key or Minute key.

7-Days timer key

There are two keys for timer. One is ON Timer,another is Off Timer.

Press the key one time will activate set timer mode.

Press the key again will disable set timer mode.

~Under set timer mode, the 7-days timer settingcan be changed by pressing Day key, Hour key or Minute

key.

A

B

Current time display

Timer Hold/Resume display

Day key

During set clock mode or set timer mode, press the key will change the day setting.

Hour key

During set clock mode or set timer mode, press the key will change the hour setting.

Minute keyDuring set clock mode or set timer mode, press the key will change the minute setting.

22


24/64

Timer Hold/Resume key

If 7-days timer is set, then the word "Timer Active" is displayed.

To clear all the timers setting, Press and hold the hold key until the word "Timer Active" is notdisplayed.

To resume the timer setting after timers have been held, press and hold the key until the word "

Timer Active" is displayed.

23

1- 5 Other function

Key lock

Press the "MINUTE" key three times consecutively,

"KEY LOCK" symbol will appear on LCD screen.

At this time, only "ON-OFF" key is valid.

This function purpose is protect from mischief of child

etc.

To cancel the key lock function, Please press "MINUTE"

key three times consecutively again.

Test run

Press the "TEST" key two times consecutively.The unit will run and finished automatically after two

hours.

6. Self Diagnosis Table


25/64

A. WALL MOUNTED COOLING SERIES

Model Board Handset WM 10/15/20/25 F C5 G8

LED Indicator Light Display

Timer Power

Sleep Dry

Self Diagnosis Table

POWER SLEEP TIMER DRYOperation / Faulty I

Timer on

Sleep mode on

Dry mode

Continuosly/ Frost prevention m

Once every 2 secRoom air sensor co

Twice every 2 secIndoor coil sensor c

3 time every 2 sec Outdoor abnormal

ON / ON or OFF BLINKING

6. Self Diagnosis Table


26/64

B. WALL MOUNTED HEATPUMP SERIES

Model Board Handset

WM 10/15/20/25 FR C2.4 G8


Cooling Mode Dry Mode

(Green) (Orange)

Heat / Fan Mode Sleep Mode(Red/Green) (red)


COOL DRY FAN HEAT SLEEP

Operation / Faulty

/ Cooling mode

Dry mode

Fan mode

/ Heat mode

/ Auto mode in heating o

/ Auto mode in cooling o

Defrost operation

Controller overload pro

Indoor coil sensor cont

Outdoor coil sensor coRoom air sensor conta

If the system is in auto

heat or cool mode and

function turn off the po


27/64

C. CEILING EXPOSED COOLING /

HEATPUMP SERIES - WIRELESS CONTR

Model Board Handset CE 20/25/30/40/50 D/DR C3.0B G8

Cooling : LED Indicator Light Display

COOL DRY FAN

Heatpump : LED Indicator Light Display

COOL DRY TIMER FAN POWER


COOL DRY/ FAN/ HEAT Operation / Faulty

TIMER POWER

/ / / Power on

Room sensor conta

Outdoor coil senso

Gas leak

Compressor overloOutdoor defrost



28/64

D. CEILING CASSETTE COOLING /

HEATPUMP SERIES - WIRELESS CONTR

Model Board Handset

CK 20/25/30/40/50 A/AR C3.0A G8


POWER TIMER SLEEP


POWER TIMER HEAT


COOL HEAT Operation /

POWER TIMER SLEEP POWER TIMER HEAT

/ / / / Power on

Room / Indoheatpump) c

loose / short

Gas leak fau

Compressor

Condensate

Pump error

Outdoor defr

(for heatpum



29/64

E. C3 CONTROLLER WITH SLM WIRED HANModel Board Handset

CK 20 - 50 A/AR C3A SLM2 - 10 WIRE

CE 20 - 50 D/DR C3B SLM2 - 10 WIRE

CC 10 - 60 C/CR C3B SLM2 - 10 WIRE

COOLING ONLY MODEL

Operation / Faulty Indicat

Room sensor contact loose

Indoor coil sensor contact lo

Outdoor coil sensor contact

Gas leak

Compressor overload

Candensate water overflow

* For CK model only

HEATPUMP MODEL

Operation / Faulty Indicat

Room sensor contact loose

Indoor coil sensor contact lo

Outdoor coil sensor contact

Gas leak

Compressor overload

HIGHFAN

SLEEP

LOWF

AN

COOL

MED.FAN

TIMER

HEAT

HIGHFAN

SLEEP

LOW

FAN

COOL

MED.

FAN

TIMER



30/64

F. WALL MOUNTED COOLING SERIES

- AUTO RANDOM RESTART

Model Board Handset

WM 10/15/20/25 F D2.0 G8


Timer Power

Sleep Dry


POWER SLEEP TIMER DRY

Operation / Faulty

/ Timer on

Sleep mode on

Dry mode

/ Frost prevention m

Once every 2 secRoom air sensor co

Twice every 2 secIndoor coil sensor

3 time every 2 sec

Gas leak



31/64

G. WALL MOUNTED HEATPUMP SERIES

- AUTO RANDOM RESTART

Model Board Handset

WM 10/15/20/25 FR U1.4 G8


Cooling Mode Dry Mode

(Green) (Orange)

Heat / Fan Mode Sleep Mode

(Red/Green) (red)


COOL DRY FAN HEAT SLEEP

Operation / Faulty

/ Cooling mode

Dry mode

Fan mode/ Heat mode



Defrost operation

Compressor overload


Outdoor coil sensor co

Room air sensor conta

Gas leak


32/64

H. WALL MOUNTED INVERTER HEATPUMP

Model Board

WMV 10FR/SLV10BR VA1.0


Cooling / Dry Standby / Fan

(Green / Red) (Red)

Heat Time

(Red) (Green)

Self Diagnosis Table - Indoor LED Display

COOL DRY HEAT STANDBY TIMER

Operation / Faulty In

/ Cooling mode

Dry mode

Fan mode

/ Heat mode

/ Auto mode

Defrost operation

Compressor overloaIndoor coil sensor co

Outdoor coil sensor

Gas leak / compress


33/64

Outdoor Inverter Display Panel

Error Code Display as LED blinking

Code Error

01 Current transformer error

02 Communication with indoor error

03 Indoor coil sensor error

04 Oudoor coil sensor error

05 Gas leak

06 Coil overload07 Outdoor air sensor error

08 Compressor discharge sensor error

09 Room sensor error

10 Communication with inverter error

11 PFC error

12 Compressor discharge temperature error 13 Total current overload

14 Inverter DC peak trip (overcurrent)

24 Inverter overvoltage trip

25 Inverter overload trip

26 Inverter overheat trip

27 Inverter CPU error 1

28 Inverter CPU error 2

29 Inverter illegal command in the Master trip

2A Inverter illegal command in the Inverter trip

2C Inverter abnormal in the master trip

2E Inverter external signal trip

Outdoor Board LED

Condition LED


34/64

I. CEILING EXPOSED COOLING /

HEATPUMP SERIES - AUTO RANDOM RES

Model Board Handset

CE 20/25/30/40/50 D/DR U1.4 G8


COOL DRY FAN


COOL DRY FAN HEAT


COOL DRY FAN HEAT SLEEPOperation / Faulty

/ Cooling modeDry mode

Fan mode

/ Heat mode



Defrost operation

Compressor overload p


Outdoor coil sensor co


35/64

J. CEILING CASSETTE COOLING /

HEATPUMP SERIES - AUTO RANDOM RE

Model Board Handset

CK 20/25/30/40/50 A/AR U1.4 G6


POWER TIMER SLEEP


POWER TIMER HEAT


POWER TIMER SLEEP DRY

Operation / Faulty

Timer on

Sleep mode on

Heat mode

Continuously/ Frost prevention m

Once every 3 sec Compressor overlo

Twice every 3 secPump fault

3 time every 3 secGas leak


36/64

K. AUTO RANDOM RESTART CONTROLLER

WITH SLM WIRED HANDSETModel Board Handset

CK 20 - 50 A/AR U1.4 SLM 3 - 4 WIRECE 20 - 50 D/DR U1.4 SLM 3 - 4 WIRE

CC 10 - 60 C/CR U1.4 SLM 3 - 4 WIRE

SB75 - 150 B/BR U1SB125 SLM 3 - 4 WIRE

SB75 - 150 D/DR U1SB125 SLM 3 - 4 WIRE

Cooling / Heatpump Model

Error Code at 7 Segment Display Operation / Faulty Indic

E1Blinking Room Sensor Contact

E2Blinking Indoor Coil Sensor Con

E3Blinking Outdoor Coil Sensor Co

E4Blinking Compressor Overload

E5Blinking Gas Leak

E6Blinking Pump Faulty

Heat LED Blinking Outdoor Defrost (For H


37/64

L. STATIC DUCTED BLOWER FAN COIL UNIT

HEATPUMP SERIES

Model Board Ha

SB 150B2/BR2 - 600B4/BR4 SQCH SQ

SB150D2/DR2 - 500D4/DR4 SQCH SQ

When the system is on and an error occurs, the ON/OFF LED o

blink and an error code is shown. When the system is off and th

error, the ON/OFF LED is off but the error code is still displaye

represents different message as below:

Error Code Operation / Faulty Indication

E01 Require manual reset

E02 Compressor 1 high temperature (overlo




E06 Compressor 1 high pressure trip / conta




E10 Compressor 1 trip / low R-22 / outdoor a

E11 Compressor 2 trip / low R-22 / outdoor a

E12 Compressor 3 trip / low R-22 / outdoor aE13 Compressor 4 trip / low R-22 / outdoor a

E14 Room sensor short

E15 Room sensor open

E16 Indoor coil sensor 1 short




E20 Indoor coil sensor 1 open




E24 Outdoor coil sensor 1 short


38/64

M. CHILLED WATER FAN COIL SERIES

Model Board Handset

CK 20 - 50 AW W1V2 G6 Wireless Controlle

CE 20 - 50 DW W1V3 Netware-1 Wired ContrCC 10 - 60 CW


Wireless Wired Operation / F

Power LED Other LEDs 7 Segment Display

Blinks 4 times Fan blinks E1 Blinking Room sensor Co

Blinks 4 times Sleep blinks E2 Blinking Indoor coil senso

Blinks 1 time Cool blinks E4 Blinking Pipe water temp

Blinks 2 times Cool & Fan blink E6 Blinking Pump faulty

Mainboard: W1V3

Wireless Wired Operation / Fau

Power LED Other LEDs 7 Segment Display

Blinks 4 times Fan blinks E1 blinking Room sensor coBlinks 4 times Sleep blinks E2 blinking Indoor coil sens

Blinks 3 times Cool & dry blink E4 blinking Pipe water temp

Blinks 1 times Cool blinks E5 blinking Pipe water temp

Blinks 2 times Cool & fan blink E6 blinking Pump faulty

Mainboard : W1V2


39/64

N. ROOFTOP PACKAGED AIR CONDITIONER

Model Board Handset

A) RT 80/100/150/200 MECHANICAL PAC-204R


7 Segment Display Operation / Faulty Indication

E01 Blinking Thermistor Open CircuitE02 Blinking Thermistor Open Short

E03 Blinking External Switch Is Closed

B) RT 150/250/300 SQCH SQ-LCD


Please refer to Page 34

C) RT 60/80/100/120 U1SB125 SLM-3

Self Diagnosis TablePlease refer to Page 33


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O. AIR COOLED MINI CHILLER

Model Board

AC40/50/58A/AR SZMC01

AC75/100/125B/BR

System Failure Mode

No Description Error Code Compressor Condenser

Display Fan

1 Compressor overload CO X X2 Condenser fan overload CO X X

3 Water pump overload PO X X

4 Flow switch FL X X

5 High pressure cut-off HP X X

6 Low pressure cut-off LP X X

X = Stop; O = Run; B = Blink

Error Code

Display Possible Causes

CO Compressor thermal relay trip

Terminal loose

PO Pump thermal relay trip

Terminal looseFL Flow switch connection fault

Water flow wrong connection

Flow switch fault

HP Discharge pressure high

Overcharged

Coil dirty

Condenser fan faultLP Suction pressure low

Undercharged/leak

Water flow rate too low

E3 Antifreeze protection activated


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7. General Troubleshooting Guide

By means of pressure readings

PRESSURE PROBAB

Data

Circuit

HIGH SIDE 1. Overcharged with refri

LOW SIDE 2. Non-condensable gase

(eg.oil)

3. Obstructed air-intake /

4. Short circuiting of hot a

HIGH SIDE 1. Poor compression / no

LOW SIDE ( compressor defective

2. Check valve stick in op

3. Reversing valve leakin

HIGH SIDE 1. Undercharged with ref

LOW SIDE 2. Refrigerant leakage.

3. Air filter clogged / dirty4. Indoor fan locked (coo

5. Defective defrost contr

up (heating)

6. Outdoor fan locked (he

HIGH SIDE 1. Outdoor fan blocked (c

LOW SIDE 2. Outdoor coil dirty (coo

3. Indoor fan lock (heatin

4. Indoor filter clogged di

HIGH SIDE 1. Air intake temperature

TOOLOW

TOOHIGH

NORMAL

ALITTLE

LOW

ALITTLE

HIGH

High Suction Pressure


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High Suction

Pressure

Excessive Fresh Air Intake

Evaporator Air

Inlet

TemperatureInsufficient Duct Insulation

Defective Compressor Valve

R

Re

Change

Low

Overcharged Refrigerant

Low Suction

Pressure

Clogged Air Filter

Evaporator

Air Inlet

Temperature

EvaporatorAir Flow

Restricted Duct

Low Fan Speed

Short Cycling

Faulty Thermostat

Restricted Liquid LIne And

Suction Line

Low Discharge Pressure

Remove o

Repa

Restricted

Low

Low Refrigerant Charge

See "L

Low Suction Pressure

High Discharge

Pressure

Clogged Condenser Coil

Condenser

Air Inlet

Temperature

Condenser

Air Flow

Low Fan Speed

Malfunction Of Fan Cycling

System

Circulating Air Flow


Non-Condensable Gas

C

Secure s

Restricted

High

Restricted Liquid Line

High Discharge Pressure

Diagnosis by flow chart (Cooling only)


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Diagnosis by flow chart (Cooling only)The following charts are efficient checking procedures for troubleshooting wh

are combined with condensing units with the unit standard wiring. For dual c

the procedures for each circuit.

No Cooling

No Cooling ( Compressor Does Not Start )

No Voltage or Low Voltage

Unit PowerSupply

Evaporator

Fan Motor

Fuse For

Operation

Circuit

Single-Phase

Components Shorted

Connections Loose

Overcurrent

Relay For

Evaporator Fan

High Volage or Low Voltage

Single-Phase

Evaporator Fan

Contactor

Coil Burned

Contact Faulty

Repair or

Check

motor

Faulty Fan Motor

Defective Operation Switch

Re

Rep

CondenserFan Motor

Overcurrent

Relay For

Condenser Fan

Condenser Fan

Contactor

High Voltage or Low Voltage

Single-Phase

Coil Burnt

Contact Faulty

Fan Motor Faulty

Other Electrical ComponentFaulty

Re

Repa

Running

Stop

Tripped

Faulty

Faulty

Tripped

Blown

Running

Faulty

Stop

: Faulty : Check : Cause

Check

motor


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Insufficient Cooling

High Discharge Pressure or Low

Suction PressureDual Pressure

Switch

Compressor

Cycling

Overcurrent

Relay ForCompressor

Clogged Capillary or Pressure

Switch

Switch Faulty

High Voltage or Low Voltage

Discharge Gas

Thermostat or

Internal

Thermostat

Single-Phase

High Discharge Pressure AndHigh Suction Pressure

High Discharge Pressure And


Refrigerant Short Charge or

Refrigerant Leakage

See "High

Repair c

Repai

Che

compressor

High Suction Pressure

High Discharge Pressure or Low

Suction Pressure

See

Running

Tripping

Cycling On

Tripping

Tripping

Loose Connections

See "Hor

See "H

or

See "H

or

Noisy Operation

Unremoved Shipping Bolt(s)

Evaporator

Fan

Compressor



Worn Compressor Parts

Knocking Runner

Worn Bearing

Refrigerant Short Charge

See

Replace o

Fix the r

Noisy

Partially CloggedLiquid Line

ShippingBolt(s)

Liquid

Refrigerant

Backing Up

Noisy

Noisy

Noisy

Strainer

Whistling

Insufficient Cooling

Noisy Operation


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General Trouble Shooting Guide - 1

When any air conditioner malfunction is noted, immediately swi

ply to the unit, and contact the local dealer, if necessary. Some s

tips are given below:

Fault Cau

1. Compressor does not work * Protection agains

3 minutes after starting. Wait for 3 to 4 min

2. The unit does not work. * Power failure or n fuse

* The power plug is

* It is possible that

been set incorrect

* If the fault persist

contact your instal

3. The air flow is too low * The air filter is dir

* The door and wind

* The air intake and

clogged.

4. The remote control light is dim. * Battery flat.* Batteries are inco

misplaced.

5. Air discharge flow has bad odour * Odours may be ca

smoke particles, p

adhere to the coil.* Check if there is a

wall, garment, and

* Check the drain p


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hootingforoptionalGlobalRemoteContro

ller

service,chec

kthefollowingp

oints

oteController

Cause

Troubleshoo

ting

cialOrder)

OFFdisplayisnot

Powerfailure

Presstheswitch(ON)buttonafter

power

up.Nodisplay

restoration

arsevenwhen

the

Thepowersu

pplyisturnedOFF

TurnthepowersupplyON

OFF)buttonis

Thefuseinth

epowersupplyisgone

Replacefuse

sed

Theearthlea

kagebreakerisgone

Putintheearthleakagebreaker.

Thewiringph

aseofpowersupply

is

Modifythewiringphaseofpowersupply

mistaken

quidcrystal

Impropertem

peratureadjustment

Afterchecking

thesettemperatureandinlet

ayshowsthatitis

temperaturea

djustthermostat(23

WA)

stateofopera

tion

Thefilterisfilledwithdustanddirt.

Cleanupthefilter

Therearesomeobstaclesattheair

Removetheo

bstacle

inletandoutletoftheunits

Windowsand

doorsareopen

Closethewindowsanddoors

quidcrystal

Therestart-p

reventingcircuitisin

Waitforawhile

ayshowsthat

operationfor

3minutes

(Toprotectthecompressor,a3-m

inuterestart-

noperation

preventingcir

cuitisbuiltintotheu

nit.

Therefore,the

reareoccasionssometimes

whenthecom

pressordoesnotsta

rtrunning

immediately.Therearecaseswhe

nitdoesnot

runforaslongas3minutes.)

t

T h

t t

t

f t h

t

t i

F

t

t

t l d

t h

t

8 M difi ti t A t R t t


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8. Modification to Auto Restart

Auto Restart Feature

Modification on controller board to have unit restart after power

setting:

Indoor Temp. Set Temp. Fan Speed Mode

Cooling All Temp. 24C High Cool

model

Heatpump > 20C 24C High Cool

model < 20C 20C High Heat

I) WM 10/15DR & WM 20/25CR :

a) For challenger C2.2 PCB,

To add a 10k Ohm 5% Carbon, 1/4 W or higher resistor diagona

Switch Board CHAL2F1

Front View Reverse V

b) For challenger C2.4 PCB,

To solder a 10k Ohm 5% Carbon, 1/4 W or higher resistor diago

Switch Board C2D03F1

II) WM 10ER :


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51

For Challenger C2.4 PCB

To add a 10k Ohm 5% Carbon, 1/4 W or higher resistor diagonally at S1 On/Off

Switch Board C2E02S1

R

III) WM 10/15/20/25 FR :

For Challenger C2.4 PCB

To solder a 10k Ohm resistor at R_CON located at the WMF02D2

IV) C3A & C3B Board Wireless Controller:


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52

To solder a 10kOhm resistor across RCON located on the On/Off switch board

CKS2XXX for C3A board and 03DCEDX for C3B board

RCON

V) SLM Wired Controller for C3A & C3B Board :

To solder a jumper wire across JDO on the main board of the SLM wired controller.

JDO jumper

9.9.9.9.9.AAAAAuto Ruto Ruto Ruto Ruto Random Random Random Random Random Restarestarestarestarestart Contrt Contrt Contrt Contrt Controllerollerollerolleroller


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I) Auto Random Restart SelectionAuto restart at the last state memory setting:

Shorted at JH/JP1 jumper at main board for auto restart (supplied);

Remove the jumper to have non-auto restart.

WM-F Series WM-FR Series Other Model

(D1.7 Board) (U1.3 Board) (U1.4 Board)

II) Hot Keep Selection

Three selection available:a. Fan stop if indoor coil temperature < 30C (OFF);b. Fan runs at low speed if indoor coil temperature < 30C and stop if indoor coil

temperature < 18C (ON);

c. Cycle of low fan running for 30 seconds and fan off for 120 seconds and repeat(INTERVAL).

WM-F/FR (U1.3 Board)3 selection available at the slide switch on the On/Off Switch board; Preset at OFF.


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54

Other models (U1.4 Board)

At CN3 location on the PCB,i. Remove the connector to have (b)-Fan ON and

ii. Cut off the big resistor (12k Ohm) to have (c)-Fan INTERVAL

Non-ducted Model-Standard setting is (a)-Fan OFF

Ducted Model - Standard setting is (c)-Fan INTERVAL

10 Controller Configuration


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10. Controller Configuration

A) Sequential ControllerIt is allowed to configure the controller to suit individual's need w

Model Select ion

1. Number of Compressor

The control can be configured into 4 main types base on numbe

By changing "R42" values :

Item Type R value1 Single Compressor 3k

2 2 compressors 7.5k

3 3 compressors 22k

4 4 compressors OPEN

2. ModelsFor each type, there are 3 models for the control to configure in

Dip switch 1 Dip switc

a. Cooling (SQCn) off off

b. Heatpump + no heater (SQHn0) on off

c. Heatpump + 1 heater (SQHn1) off ond. Heatpump + 2 heater (SQHn2) on on

e. Auto heatpump + no heater (SQHn0) on off

f. Auto heatpump + 1 heater (SQHn1) off on

g. Auto heatpump + 2 heater (SQHn2) on on

n denotes number of compressor(s).where the postfix number indicates number of compressor(s).

3. Stage Differential Temperature


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note that 1.5C only valid for 2 and 3 compressors model. For 4

maximum allowed is 1.0C.

The default differential temperature is base on number of compsetting is as below :

Model Diff. Temperature

1 compressor Not applicable

2 compressor 0.5C

3 compressor 1.0C

4 compressors 1.5C

4. Hot Keep Option

Dip switch 6

a. Fan off off

b. Fan on on

5. Operating Modes

The system has 4 operating modes to select with respect to eac

Model Auto Cool Heat Fan

SQCn - X - XSQHnh - X X X (Di

SQHnh X X X X (Dip

Where x denotes modes available

n = number of compressor(s)

h = number of heater(s)

6. Last Memory Functions

The power up settings for either with or without the last memory

the JH1 setting

7 Sequential Control For Cool Mode


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7. Sequential Control For Cool Mode

The starting sequence for indoor fan, outdoor fan and compress

below:

2 secondsStart Indoor fan

15 seconds 2 seconds

outdoor fan 1 compressor 1*







* if available and applicable

The compressors will be turned on one by one depending on th

shown in the above

8. Sequential control for heat mode

The starting sequence for indoor fan, outdoor fan and compress

below :

2 seconds 2 secondsStart Indoor fan all 4 way valves





15 seconds 2 secondsoutdoor fan 3 compressor 3*




9. Conversion from Old Sequential Board to New Sequential Board


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(For wiring up to 1000 metres)

9.1 Sequential Main Board SQMB01(Old Version)

9.2 Sequential Main Board SQMB01 (New Version)

58

U8

J1 & J2

Rework instruction:

SQMB01 (Main Board) from old

version to new version

Step 1: Remove Jumper J1 and J2.

Step 2: Add Part: 2051-MAX1483

IC :MAX1483 to U8

9.3 Sequential Main Board SQMB01 (New Version)


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9.4 Sequential LCD Panel SQLCD (New Version)

Part : 2051- MAX1483

IC : MAX1483

Jumper J1 and

J2 removed

J2

J1

U8

SQLCD (LCD Panel) from old to new

Step 1: Remove Jumper: J1, J2

Step 2:Add Chip Resistor. 1/10W 5%

200K to R8, R9, R10

Step 3:Add Part: 1000000030

IC: SMD MAX1483CSA to U4

R9

R8U4

R10

B) W1V2 - Chilled Water Fan Coil Unit


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Mode Selection

Modes Cool Dry Heat Fan OD

Heatpump, AP X X X X Shorted

Cooling, EC X X - X Open

Last Setting Memory Backup

By removing the jumper at JH on the main board.

Wiring Connection

CN4 : To connect to Netware-1 controller (Wired-3 way wire)

CN6 : To connect to LED display (Wireless G6 application)

CN2 : To connect to twin motor board (if required)T_FULL : To connect to level switch (for Ceiling Cassette only)

T_FULL

CN2

Note :

Only one application either wired or wireless control at one time.

C) W1V3 - Chilled Water Fan Coil Unit

The Standard Board (W1V3) comes with a VALVE jumper. The system can be


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The Standard Board (W1V3) comes with a VALVE jumper. The system can be

configured as the jumper selection listed below:

VALVE Jumper HEAT Jumper

Heatpump Mode & Valve Application

Heatpump Mode & Valveless Application

Cooling Mode & Valve Application

Cooling Mode & Valveless Application

: Jumper Remained : Jumper Removed

VALVE & HEAT Jumper Location

Model: WM 05-25FW

1. VALVE jumper is plugged into JVLV connector on the emergency switchboard.

2. Heat jumper is plugged into JMODE connector on the emergency switchboard.

Model: CK 20-50AW, CK 15-30BW, CE 20-50DW and CC 10-60CW

1. VALVE jumper is plugged into JVLV connector on the main board.

2. HEAT jumper is plugged into OD connector on the main board.

61

VALVE Jumper

D) Netware-1 Controller


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)

Feature : Dip Switch Setting for Model Selection

Pin Function Remarks

JH & JD COOL, DRY, FAN JH - OFF; JD - ON

COOL, DRY, FAN, HEAT JH - ON; JD - ON

RTC No real time clock RTC-OFF

Real time clock RTC-ON

NO DRY With Dry function NO DRY - ON

Dry function NO DRY - OFF

E) Air Cooled Mini Chiller

Entering Water Temperature

Mode Factory SettingCOOL 12C

HEAT 40C

SW2 Factory Setting (for COOL mode)

Set Temp. SW2

C SW2-3 SW2-2 SW2-1

Set by VR3 0 0 0

3 0 0 1

4 0 1 0

5 0 1 1

6 1 0 0

7 1 0 1

8 1 1 0

F) Work Instructions


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Conversion of C3 Board from LCD Wireless Control to SLM Wired Control

Step 1 & 2

Step 3

Step 1: Remove the LED Display hardness wire from the connector CN3;

Step 2 : Connect the SLM handset wire connector to CN3

(Ensure the wire is 10 core wire);

Step 3: Cut off a capacitor at C6 as highlighted.

Step 4: Reset the unit.

Manual controlador mquay

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