McQuay MWM-G2W

10
System Configuration
The standard controller board (W2) comes with a VALVE jumper and a HEAT jumper. The system can be
configured as the jumper selection listed below:
HEAT Jumper VALVE Jumper
Heatpump Mode & Valve Application
√√
Heatpump Mode & Valveless Application
√ X
Cooling Mode & Valve Application
X √
Cooling Mode & Valveless Application
XX
CACA
CACA
CA
UTION !UTION !
UTION !UTION !
UTION !
Disconnect the power supply to the unit before attempting to connect the wiring
VALVE & HEAT Jumper Location
Model: MWM - G2W / 301W
1. VALVE jumper is plugged into JVLV connector on the emergency switch board.
2. HEAT jumper is plugged into JMODE connector on the emergency switch board.
Model: MCK-AW/AWH/CW, MCM-DW/CBW/EW and MCC-CW
1. VALVE jumper is plugged into JVLV connector on the main board.
2. HEAT jumper is plugged into OD connector on the main board.
Model : MWM 007 / 010 / 015G2W (IONIZER)
√
Jumper Remained X Jumper Removed
AA
AA
A
pplicapplica
pplicapplica
pplica
tion Inftion Inf
tion Inftion Inf
tion Inf
oror
oror
or
mama
mama
ma
tiontion
tiontion
tion
General Installation Guide