C L I M A T E M A S T E R W A T E R - S O U R C E H E A T P U M P S
Tranquility
®
Compact Belt Drive (TCH/V) Series
Rev.: July 25, 2017
44
C l i m a t e M a s t e r Wa t e r - S o u rc e H e a t P u m p s
Figure 20: Thermostat Connection
Electrical - Thermostat Wiring
ATP32U03 Thermostat
Connection to CXM Control
Compressor-Stage 1
Reversing Valve
Fan
24Vac Hot
Y1
Y2
O
G
R
Y
O
G
R
CXM1
Y
O
G
R
CXM2
24Vac Com
C
C
Compressor-Stage 2
C
AL
AL
AL
Field Wiring
Factory Wiring
Thermostat Installation
- The thermostat should be
located on an interior wall in a larger room, away from
supply duct drafts. DO NOT locate the thermostat in
areas subject to sunlight, drafts or on external walls.
The wire access hole behind the thermostat may in
certain cases need to be sealed to prevent erroneous
temperature measurement. Position the thermostat
back plate against the wall so that it appears level and
so the thermostat wires protrude through the middle
of the back plate. Mark the position of the back plate
mounting holes and drill holes with a 3/16” (5mm)
bit. Install supplied anchors and secure plate to the
wall. Thermostat wire must be 18 AWG wire. Wire
the appropriate thermostat as shown in Figure 20 to
the low voltage terminal strip on the CXM or DXM
control board. Practically any heat pump thermostat
will work with ClimateMaster units, provided it has
the correct number of heating and cooling stages.
ATP32U03 Thermostat
Connection to DXM Control
Compressor-Stage 1
Reversing Valve
Fan
24Vac Hot
Y1
Y2
O
G
R
O
G
R
DXM1
Y
O
G
R
DXM2
24Vac Com
C
C
Compressor-Stage 2
C
AL1
AL1
AL
Y1
Y2
COM 2
COM 2
