McQuay MWM User manual

SERVICE
GUIDE BOOK

MCQUAY Service Guide Book Table of Contents
1
Table of Contents
1.0 MODEL NAME
1.1 Product Name Description ............................... 2
2.0 CONVERSION TABLE
2.1 Conversion Table ............................... 3
3.0 PRODUCT MAINBOARD VS HANDSET MATRIX
3.1 Product Mainboard vs. Handset Matrix ............................... 4
4.0 HANDSET OPERATING GUIDE
4.1 G6 ............................... 6
4.2 G7 ............................... 7
4.3 G11 ............................... 8
4.4 G17 ............................... 9
4.5 GS01 ............................... 10
4.6 APJ1 ............................... 12
4.7 SLM3 ............................... 14
4.8 SLM8 ............................... 15
4.9 Sequential LCD ............................... 17
4.10 Netware 3/3C ............................... 18
4.11 Rooftop Panel ............................... 19
4.12 Chiller Panel ............................... 20
4.13 MC301 ............................... 21
4.14 MC303 ............................... 24
5.0 CONTROLLER SETTING
5.1 Auto Random Restart ............................... 26
5.2 Hot Keep Selection ............................... 26
5.3 Sequential Board (SQ2.0) ............................... 28
5.4 Chilled Water Fan Coil Unit – W1V3 ............................... 30
5.5 Chilled Water Fan Coil Unit – W2.0
5.6 Hardware Setting – SLM8
...............................
...............................
31
32
6.0 CONVERSION CONFIGURATION
6.1 Auxiliary Heater Conversion 33
6.2 Multi Split Conversion ............................... 36
6.3 U1.5 ÆL208A Conversion ............................... 37
6.4 WMF U1.4 to L2EF Conversion ............................... 38
6.5 SQ Board for Wiring up to 1000m Conversion ............................... 39
6.6 Room Sensor On Netware 3 ............................... 41
7.0 SERVICE DIAGNOSIS
7.1 LED Lights Diagnosis Table ............................... 42
7.2 Error Codes Diagnosis By Handset ............................... 62
7.3 MDS Diagnosis ............................... 72
7.4 General Check ............................... 75
7.5 General Troubleshooting Guide ............................... 76
APPENDIX
A. Resistance – Temperature Characteristic ............................... 77
B. MDS Compatibility ............................... 80
C. MDS Outdoor Capacity Dip Switch Setting ............................... 81
D. Cable Length Of Wired Handset ............................... 82
“Mcquay” is a registered trademark of Mcquay International. All rights reserved.
© 2012 Mcquay International. All rights reserved throughout the world.
Bulletin illustrations cover the general appearance of Mcquay International products at the time of publication.
We reserve the right to change design and construction specification at any time without notice

MCQUAY Service Guide Book Model Name
2
1.0 MODEL NAME
1.1 Product Name Description
No. Description Generic Model Name MCQUAY Brand
1 Wall Mounted Fan Coil Unit WM / 5WM MWM / M5WM
2 Wall Mounted AC Inverter Fan Coil Unit WMV MWMV
3 Wall Mounted DC Inverter Fan Coil Unit 5WMX M5WMX
4 Wall Mounted DC Inverter-Y Fan Coil Unit 5WMY M5WMY
5 Ceiling Exposed Fan Coil Unit CE / 5CE MCM / M5CM
6 Ceiling Exposed Inverter-Y Fan Coil Unit 5CEY M5CMY
7 Ceiling Cassette Fan Coil Unit CK / 5CK MCK / M5CK
8 Ceiling Cassette Inverter-Y Fan Coil Unit 5CKY M5CKY
9 Ceiling Concealed Fan Coil Unit CC / 5CC MCC / M5CC
10 Ceiling Concealed Inverter-Y Fan Coil Unit 5CCY M5CCY
11 Ducted Split Blower Unit SB MDB
12 Chilled Water Fan Coil Unit CW MCW
13 Water Source Heatpump Split Unit WSS / 5WSS MWSS / M5WSS
14 Horizontal Water Source Heatpump Unit WH MWH
15 Air Cooled Mini Chiller AC / 4AC / 5AC MAC / M4MAC /
M5MAC
16 Single Split Condensing Unit SL / 4SL / 5SL MLC / M4LC / M5LC
17 Single Split AC Inverter Condensing Unit SLV MLCV
18 Single Split DC Inverter Condensing Unit 5SLX M5LCX
19 Single Split DC Inverter Condensing Unit 5SLY M5LCY
20 Modular Split Condensing Unit MSS / 4MSS MMC / M4MC
21 Multi Split Series MSD / 4MSD MMSD / M4MSD
MST / 4MST MMST / M4MST
MSH MMSH
22 Multi Split AC Inverter Condensing Unit MSV MMSV
23 Multi Split DC Inverter Condensing Unit 5MSX M5MSX
24 Multi Split DC Inverter Condensing Unit 5MSY M5MSY
25 Multi Digital Scroll Units MDS/ 5MDS MDS/ 5MDS
26 Horizontal Condensing Unit HDC / 5HDC AHDC / A5HDC
27 Vertical Condensing Unit VCU MVCU
28 Air Cooled Roof Top Packaged Air
Conditioner
RT / 4RT / 5RT MRT / M4RT / M5RT
29 Air Cooled Inverter Mini Chiller 5ACV M5ACV

MCQUAY Service Guide Book Conversion Table
3
2.0 CONVERSION TABLE
2.1 Conversion Table
Capacity
Btu/hr MBH kCal/Hr kW
1 0.001 0.252 0.293 x 10-
3
1000 1 252 0.293
3.968 0.004 1 1.162 x 10-
3
3412 3.412 860.04 1
Pressure
PSI kg/cm2W.G. Pascal
(in.) (ft.) (Pa)
1 0.07 27.7 2.309 0.69 x 10
4
14.22 1 394.08 32.84 9.81 x 10
4
3.61 x 10-
2
2.538 x 10-
3
1 0.083 248.84
1.45 x 10-
4
0.1 x 10-
4
0.004 3.349 x 10-
4
1
Flow Rate
L/s m
3
/hr m
3
/s U.S. GPM CFM
1 3.6 0.001 15.85 2.119
0.278 1 0.278 x 10-
3
4.403 0.588
1000 3600 1 15850 2119
0.063 0.227 0.063 x 10-
3
1 0.1337
0.472 1.7 0.472 x 10-
3
7.481 1
Temperature Velocity
fps m/s fpm
1 0.305 60
3.281 1 196.9
0.017 0.005 1
Volume
L m
3
U.S. G.P.M. ft
3
1 0.001 0.264 0.0353
1000 1 264 35.3
3.785 3.785 x 10-
3
1 0.134
28.315 0.028 7.48 1
Area
in
2
ft
2
m
2
cm
2
1 6.94 x 10-
3
6.452 x 10-
4
6.452
144 1 0.093 929.03
1550.06 10.764 1 1 x 10
4
0.155 1.076 x 10-
3
1 x 10-
4
1
°F = (1.8 x °C) + 32
8.1 32−°
=° F C

MCQUAY Service Guide Book Product Mainboard vs. Handset Matrix
4
3.0 PRODUCT MAINBOARD VS. HANDSET MATRIX
3.1 Product Mainboard vs. Handset Matrix
Type No. Main Board
Model L2.0 L2
GSN
L2
08A
R_1_
01A
W_2_
03A
C_2_
01A
2P2065
69-4
U1
SB125
SQ
2.0 VA2.0 VA3.0 Handset
Standard Optional
DX
1 WM - F Series 9G17 SLM3+AC5300/Netware 3/SLM8
2 WM - G Series 9G17SLM3+AC5300/Netware 3/SLM8
3 WMS - G Series 9G17SLM3+AC5300/Netware 3/SLM8
4 WM – J Series 9GS01 -
5 CK - A/B/C/E Series 9G17/GS01 SLM3+AC5300/Netware 3/SLM8
6 CE - D Series 9G17SLM3+AC5300/Netware 3/SLM8
7 CE - E Series 9G17SLM3+AC5300/Netware 3/SLM8
8 CC - C Series 9SLM3 Netware 3 / SLM8
9 CC - D Series 9Netware 3 SLM3
10 SB - B/C Series
SB 75 – 100B/BR 9SLM3 Netware 3 / SLM8
SB 125 – 150B/BR 9SLM3 -
SB 125CR 9SLM3 -
SB 150B2/BR2 –
600B4/BR4
9SQ-LCD -
11 SB – D/ER Series
SB 75 – 100D/ER 9SLM3 Netware 3 / SLM8
SB 125 – 150D/ER 9SLM3 -
SB 125D2 – 500D4 9SQ-LCD -
SB 125ER2 –
600ER4
9SQ-LCD -
12 RT Series
RT 55 – 120A/AR 9SLM3 -
RT 150 – 420A/AR 9SQ-LCD -
5RT 90 – 250BR 9RT Panel -
13 WMX – F/G Series 9G17 SLM3 + AC5300
CKX – A/C Series 9G17 SLM3 + AC5300
CEX – E Series 9G17 SLM3 + AC5300
CCX – C Series
9SLM3 Netware 3 / SLM8
14 WMY – J Series 9G17/GS01 -
15 WMY – K Series 9APJ1 -
16 CKY – E Series
CEY – E Series
CCY – C Series
9
9
9
GS01
GS01
Netware 3C
Netware 3C
4

MCQUAY Service Guide Book Product Mainboard vs. Handset Matrix
5
Type
No.
Main Board (IC)
Model
W2 MC1.0 LWS2 APM01CB APM02D
Handset
Standard Optional
CW FCU
13 WM – GW Series 9G17 SLM3+AC5300/Netware 3/SLM8
14 CK – AW/MWH/CW Series 9G17 SLM3+AC5300/Netware 3/SLM8
15 CE – DW Series 9G17 SLM3+AC5300/Netware 3/SLM8
16 CE – EW Series 9G17 SLM3+AC5300/Netware 3/SLM8
17 CC – CW Series 9SLM3 Netware 3 / SLM8
18 SB – BW Series 9N/A -
Mini Chiller
19 AC – C Series
AC 20 – 60C/CR 9C. Panel -
AC 80 – 150C/CR 9C. Panel -
5AC 20 – 25C/CR 9C. Panel -
5AC 30 – 55C/CR 9C. Panel -
WSHP
20 5WMWS – GR 9G17
SLM3+AC5300/Netware 3/SLM8
21 5CKWS – AR/CR 9G17
SLM3+AC5300/Netware 3/SLM8
22 5CCWS – CR 9SLM3
Netware 3 / SLM8
23 WH – B Series
WH 11 – 20B/BR 9SLM15A -
WH 25 – 70B/BR 9APW04A -
5

MCQUAY Service Guide Book Handset Operating Guide
6
4.0 HANDSET OPERATING GUIDE
4.1 G6
Operation Guide
1. “ON/OFF” Switch
2. Temperature Setting
•Press button to increase or decrease
the set temperature. Setting range are
between 16°C to 30°C setting (60°F to
80°F) (Optional setting from 20°C to
30°C).
•Press ▲or ▼button simultaneously will
toggle the temperature setting between
°C and °F.
3. Automatic Air Swing
•The swing angle ranging from
horizontal to 25° to bottom.
4. “SLEEP” MODE
•This function can be activated in COOL,
HEAT & AUTO mode operation. If it is
activated in “COOL” mode, the set
temperature will be increase 0.5°C after
30 minutes, 1°C after 1 hour and 2°C
after 2 hours. Whereas in “HEAT” mode,
the set temperature will decrease by
1°C after 30mins, 2°C after 1 hour and
3°C after 2 hours.
5. Timer Setting
Press button to activate the timer setting
(from 1 hour to 15 hour) of the air
conditioning unit. To cancel the timer
setting, press the button continuously
until the timer display goes off.
6. Operation Modes
•Cooling only unit : Cool →Dry
→ Fan
•Heatpump unit : Auto →Cool
→Dry →Fan →Heat
7. Fan Speed and Ventilation Mode Selection
8. Signal Transmission Indication
•Blink to confirm the last setting has been
send to the unit.

MCQUAY Service Guide Book Handset Operating Guide
7
4.2 G7
Operation Guide
1. Transmission Source
2. Signal Transmission Indication
•Blink to confirm the last setting has
been send to the unit.
3. On/Off Button
4. Temperature Setting
•The temperature setting range is from
16°C to 30°C (Optional setting 18°C to
30°C).
•Press both buttons simultaneously to
toggle the temperature setting between
°C and °F.
5. Operation Mode
•Cooling only unit: COOL, DRY & FAN.
•Heatpump unit: AUTO, COOL, DRY,
FAN & HEAT.
6. Fan Speed Selection
7. On Timer Setting
8. Off Timer Setting
9. Automatic Air Swing (Optional)
•Press button to activate the automatic
air swing function. Press again to stop
the louver at the desired direction.
10. Sleep Mode Setting
•This function is available under COOL,
HEAT & AUTO mode.
•When it is activated in COOL mode,
the set temperature will be increased
0.5°C after 30mins, 1°C after 1 hour
and 2°C after 2 hours.
•When it is activated in HEAT mode, the
set temperature will be decreased 1°C
after 30mins, 2°C after 1 hour and 3°C
after 2 hours.
11. Clock Time Setting
•Press button + or - to increase or
decrease the clock time.
12. Turbo Function (Optional-Only Applicable
To Inverter Unit)
•Press button for fast cooling or heating
operation.
•The temperature will be increased
internally if it is in the HEAT mode,
decreased if in COOL or DRY mode.
Fan speed will be increased if it is not
at maximum speed.
•The temperature & fan speed will
resume to user setting if the button is
pressed again or after 20mins.
•Available under HEAT, COOL & DRY
modes only.

MCQUAY Service Guide Book Handset Operating Guide
8
4.3 G11
Operation Guide
1. “ON/OFF” Button
2. Temperature Setting
•The temperature setting range is from
16°C to 30°C.
•Press both buttons simultaneously to
toggle and from ▲°C to▼°F setting.
3. Operation Mode
•Cooling only unit: COOL ( ), DRY ( )
and FAN ( ).
•Heat pump unit: AUTO, COOL ( ), DRY
(), FAN ( ) and HEAT ( ).
4. Fan speed selection
•Press the button continuously will toggle
the fan speed in the following order: Low
() –––: Med ( ) –––: High ( )
–––: Auto
5. ON Timer Setting
6. OFF Timer Setting
7. Automatic Air Swing
•Press the SWING ( ) button to activate
the automatic air swing function. Press
again to stop the louver at the desired
direction.
8. Sleep Mode Setting
•This function is available under COOL,
HEAT and AUTO mode.
•When the unit is operating under cooling
mode, the set temperature is increased
by 0.5°C after 30 minutes, 1°C after an
hour, and 2°C after 2 hours.
•When the unit is operating under heating
mode, the set temperature is decreased
by 1°C after 30 minutes, 2°C after an
hour and 3°C after 2 hours.
9. Clock Time Setting
•Press + button to increase the clock time.
•Press – button to decrease the clock
time.
10. Turbo Mode
•Press the TURBO ( ) button to achieve
the required set temperature in a short
time.
11. Ionizer
•Press the Ionizer ( ) button to activate
the negative Ion function, which will
refresh the indoor air effectively.
12. Personalize Setting
•Press button and hold for 3s to
initiate personalized setting
•Set the individual setting e.g. MODE,
SET TEMP or FAN SPEED and leave for
4s to save the setting into the program.
•2 groups of settings are allowed to store
in the handset. Press once to activate the
P1 setting, press again to cycle between
P1 and P2.
•Press any key to deactivate the
personalize setting.

MCQUAY Service Guide Book Handset Operating Guide
9
4.4 G17
Operation Guide
1. Transmission Source
2. Signal Transmission Indication
•Blink to confirm that the last setting
has been transmitted to the unit.
3. Temperature Setting
•Temperature setting range is from
16°C to 30°C (optional setting 20°C to
30°C).
4. Personalize Setting
•Press and hold for 3s, then will
blink. Press again to cycle between
and .
•Set the desire setting, then leave the
handset for 4s without pressing any key
and it will save the setting into the
program.
•Press once to activate the P1 setting,
press again to cycle between P1 and P2.
•Press any key to deactivate the
personalize setting.
5. Automatic Air Swing (optional)
•Press the SWING button to activate
the automatic air swing function. Press
again to stop the louver at the desired
direction.
6a. Silent Function (For WM – J Series only)
•Press
for quiet operation.
•Fan speed turn to minimum speed.
•Press again to deactivate the function.
6b. Ionizer Function (For WM - G series only)
•Press button to activate the negative
ion function, which will refresh the indoor
air effectively.
7. Sleep Mode Setting
•This function is available under COOL,
HEAT and AUTO mode.
•When under cooling mode, the set
temperature is increased by 0.5°C after
30 minutes, 1°C after an hour, and 2°C
after 2 hours.
•When under heating mode, the set
temperature is decreased by 1°C after 30
minutes, 2°C after an hour, and 3°C after
2 hours.
8. Operating Mode
•Press the MODE button to select the type
of operating mode.
•For cooling only unit, the available modes
are: COOL, DRY and FAN.
9. Fan Speed Selection
•Press the button continuously will
toggle the fan speed in the following
order:
Low Med High Auto
•Stop pressing when the desired fan speed
appears on the display screen.
10. “ON/OFF” Button
11. Timer Cancel
12. OFF Timer Setting
13. ON Timer Setting
14. Turbo Function
•Press for fast cooling.
•Fan speed turn to maximum speed.
•Press again to deactivate the function.
15. Clock Time Setting
•Press and hold to set the clock time.