McQuay MWM User manual

Service
Guide
Book

1
Table of Contents
Model Name
Product Name Description 2
Nomenclature 3
Conversion Table
Conversion Table 6
Product Mainboard vs. Handset Matrix
Product Mainboard vs. Handset Matrix 7
Controller Development History
Controller Development History 9
Handset Operating Guide
G6 11
G7 13
G11 15
G17 17
SLM3 19
Sequential LCD 21
Netware 3 23
Controller Configuration
Auto Random Restart 25
Hot Keep Selection 26
Auxiliary Heater Conversion 27
Multi Split Conversion 28
Sequential Controller 29
Chilled Water Fan Coil Unit – W1V3 34
Chilled Water Fan Coil Unit – W2.0 35
Service Diagnosis
Self Diagnosis Table 36
General Check 56
General Troubleshooting Guide 57
Appendix
Resistance – Temperature Characteristic Appendix-1

2
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 Ceiling Exposed Fan Coil Unit CE / 5CE MCM / M5CM 5 Ceiling Cassette Fan Coil Unit CK / 5CK MCK / M5CK 6 Ceiling Concealed Fan Coil Unit CC / 5CC MCC / M5CC 7 Ducted Split Blower Unit SB MDB 8 Chilled Water Fan Coil Unit CW MCW 9 Water Source Heatpump Split Unit WSS / 5WSS MWSS / M5WSS
10 Horizontal Water Source Heatpump Unit WH MWH 11 Air Cooled Mini Chiller AC / 4AC / 5AC MAC / M4MAC / M5MAC 12 Single Split Condensing Unit SL / 4SL / 5SL MLC / M4LC / M5LC 13 Single Split AC Inverter Condensing Unit SLV MLCV 14 Single Split DC Inverter Condensing Unit 5SLX M5LCX 15 Modular Split Condensing Unit MSS / 4MSS MMC / M4MC 16 Multi Split Series MSD / 4MSD MMSD / M4MSD
MST / 4MST MMST / M4MST
MSH MMSH
17 Multi Split AC Inverter Condensing Unit MSV MMSV 18 Multi Split DC Inverter Condensing Unit 5MSX M5MSX 19 Horizontal Condensing Unit HDC / 5HDC MHDC / M5HDC 20 Vertical Condensing Unit VCU MVCU 21 Air Cooled Roof Top Packaged Air
Conditioner
RT / 4RT MRT / M4RT
22 Air Cooled Inverter Mini Chiller 5ACV M5ACV
Model Name

3
Nomenclature
Indoor Unit
M
WM
010
G
R
-
A
C
I
A
A
Electrical
A : 220-240V/1Ph/50Hz
F : 380-415V/3Ph/50Hz
Market Region
C : Export with CE mark
Air Treatment Devices & Control
I : Negative Ion
L : Bare Unit
Grille Type
A : Grille A
Others
A : First Issue
Model Name
WM : Wall Mounted
CK : Ceiling Cassette
Capacity
010 : 10,000 Btu/h
Model Type
R : Heat Pump
Omitted if Cooling Only
Series
G : G Series
Brand
M : McQuay
Refrigerant
5 : R410A
Omitted if R22

4
M
WM
010
G
W
-
A
X
A
A
Electrical
A : 220-240V/1Ph/50Hz
F : 380-415V/3Ph/50Hz
Product Specifications Variation
AA : Revision
Connection Type
F : Flare
X : Not Applicable
Model Name
WM : Wall Mounted
CK : Ceiling Cassette
Series
G : G Series
Piping
H : 4 Pipes System
Omitted if 2 pipes system
Capacity
010 : 10,000 Btu/h
Brand
M : McQuay
Model Type
R : Heat Pump
W : Chilled Water Fan Coil
Omitted if DX Cooling Only
Refrigerant
5 : R410A
Omitted if R22
Indoor Unit

5
Indoor Unit
M
LC
010
C
R
-
A
C
P
O
A
Electrical
A : 220-240V/1Ph/50Hz
F : 380-415V/3Ph/50Hz
Market Region
C : Export with CE mark
Compressor
P : Panasonic
M : Mitsubishi
Specifications Variation
O : Standard Unit
I : Gold Fins
G : Low Ambient Unit
H : High Ambient Unit
Others
A : First Issue
Model Name
LC : Single Split Condensing Unit
MC : Modular Split Condensing Unit
Capacity
010 : 10,000 Btu/h
Model Type
R : Heat Pump
Omitted if Cooling Only
Series
C : C Series
Brand
M : McQuay
Refrigerant
5 : R410A
Omitted if R22

6
Conversion Table
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
W.G. Pascal
PSI kg/cm2
(in.) (ft.) (Pa)
1 0.07 27.7 2.309 0.69 x 104
14.22 1 394.08 32.84 9.81 x 104
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 m3/hr m3/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 m3U.S. G.P.M. ft3
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
in2ft2m2cm2
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 104
0.155 1.076 x 10-3 1 x 10-4 1
°F = (18 x °C) + 32
8.1
32
o
o F C

7
Product Mainboard vs.
Handset Matrix
Handset
Type No.
Main Board (IC)
Model
L2.0 L208A U1SB125 SQ2.0 VA2.0 Standard Optional
1 WM - F Series X G7 SLM3 + AC5300 / Netware 3 2 WM - G Series X G11 SLM3 + AC5300 / Netware 3 3 WMS - G Series X G11 SLM3 + AC5300 / Netware 3 4 CK - A/B/C Series X G7 SLM3 + AC5300 / Netware 3 5 CE - D Series X G7 SLM3 + AC5300 / Netware 3 6 CE - E Series X G11 SLM3 + AC5300 / Netware 3 7 CC - C Series X SLM3 Netware 3 8 CC - D Series X Netware 3 SLM3
SB - B/C Series SB 75 – 100B/BR X SLM3 Netware 3 SB 125 – 150B/BR X SLM3 - SB 125CR X SLM3 -
9
SB 150B2/BR2 – 600B4/BR4 X SQ-LCD -
SB – D/ER Series SB 75 – 100D/ER X SLM3 Netware 3 SB 125 – 150D/ER X SLM3 - SB 125D2 – 500D4 X SQ-LCD -
10
SB 125ER2 – 600ER4 X SQ-LCD -
RT Series RT 55 – 120A/AR X SLM3 -
11
RT 150 – 420A/AR X SQ-LCD -
WMX – G Series X SLM3 + AC5300 CKX – A/C Series X SLM3 + AC5300 CEX – E Series X SLM3 + AC5300
DX
12
CCX – C Series X SLM3 Netware 3
G11
G7
G11

8
Handset
Type No.
Main Board (IC)
Model
W2 MCH1 MC1.0 LWS2.0 APM01CB APM02D Standard Optional
13 WM – GW Series X SLM3 + AC5300 /
Netware 3
14 CK – AW/AWH/CW
Series XSLM3 + AC5300 /
Netware 3
15 CE – DW Series X SLM3 + AC5300 /
Netware 3
16 CE – EW Series X SLM3 + AC5300 /
Netware 3
17 CC – CW Series X SLM3 Netware 3
CW
FCU
18 SB – BW Series N/A -
AC – C Series AC 20 – 60C/CR X C. Panel - AC 80 – 150C/CR X C. Panel - 5AC 20 – 25C/CR X C. Panel -
Mini
Chiller
19
5AC 30 – 55C/CR X C. Panel -
20 5WMWS – GR X SLM3 + AC5300 /
Netware 3
21 5CKWS – AR/CR X SLM3 + AC5300 /
Netware 3
22 5CCWS – CR X SLM3 Netware 3
WH – B Series WH 11 – 20B/BR X SLM15A -
WSHP
23
WH 25 – 70B/BR X APW04A -
G11
G7 G7
G11
G7 G7

9
Controller Development History
Handset Model
Year Main Board Wireless Wired Cooling Heating Remarks
WM 10/15D WM 10/15DR Copper sensor
1996 Challenger 2.1 & 2.2 G3 - WM 20/25C WM 20/25CR 1996 Challenger 2.2 G3 - WM 07/10E - Copper sensor 1997 Challenger 2.4 G3 & G6 - WM 10/15D
WM 20/25C
WM10/15DR
WM 20/25CR
1998 Challenger 2.4 G3 & G6 - - WM 07/10ER
WM 10/15FR
1998 Challenger 5 G3
G6
- -
WM 07/10E
WM 10/15F -
1999
Challenger C3A Challenger C3B Challenger C3B
G3 & G6 SLM2 (10 core wire)
CK-A
CE-C/D
CC-B/MSB/HSB
CK-AR
CE-CR/DR
CC-R/MSB-R/HSB-R
2000 Mini Chiller MCH01 - - AC (40-125)B AC (40-125)BR Cooling & Heatpump 2001 Chilled Water W1V2 G6 Netware 1 WM-FW / CE-DW / CC-CW / CK-AW / HSB-
BW Convertible PCB
2001 Sequential Controller - Sequential Controller SB (150-500)B SB (150-500)BR Multiple compressor
Universal Board D1.0 G6 - WM (10-25)F - Cooling only U1.3 G6 - - WM (10-25)FR Heatpump only
2001
U1.4 G6 SLM3 (4 core wire) CE-D / CK-A / CC-C CE-DR / CK-AR /
CC-CR Cooling & Heatpump
2001 D2.0 - WM (10-25)F - Cooling only 2001 Mini Chiller SZMC01 - - AC/4AC (40-58)A,
AC/4AC75-125B
AC/4AC (40-58)AR,
AC/4AC75-125BR Cooling & Heatpump
Inverter VA1.9 (Indoor) - - WMV10FR In set form only
2001
VB1.0 (Outdoor) SLV10BR
2002 Sequencer Controller - SQ-LCD SB (150-500)D SB (150-500)DR Multiple compressor
D2.0 - WM30F - Cooling only
2002 U1.4 SLM3 /
Netware 2 (optional) CK (15/20/25/30)B
WM (10-25)FR,
WM30FR
CK (15/20/25/30)BR
Heatpump only Cooling & heatpump
G6 / G7
G7 Turbo
G7 G7