c l i m a t e m a s t e r.c o m
49
Tranquility
®
Compact High Capacity (TC_L) Series
R e v. : O c t o b e r 5 , 2 0 2 1
T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
Electrical – Thermostat Wiring
Figure 21: Thermostat Connection
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
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
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” (5 mm) 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 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
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