Service manual

27
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
®
Compact (TC) Series
Rev.: 02/06/15
Thermostat
Thermostat
Connection to CXM Control
Connection to DXM Control
Compressor
Reversing Valve
Fan
24Vac Hot
Y
W
O
G
R
Y
O
G
R
CXM
Compressor
Reversing Valve
Fan
24Vac Hot
DXM
Y1
O/W2
G
R
Y
W
O
G
R
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. Representative
thermostat wiring is shown in Figures 22 however, actual
wiring connections should be determined from the
thermostat IOM and or unit wiring diagram. Practically
any heat pump thermostat will work with ClimateMaster
units, provided it has the correct number of heating and
cooling stages.
Figure 22: Units with PSC Fan
Electrical - Thermostat Wiring
Field Wiring
Factory Wiring
Units With ECM Fan
Thermostat
Connection to ECM Control
Compressor
Reversing Valve
Fan
24Vac Hot
24Vac Common
Fault LED
Y1
O
G
R
C
L
Y
O
G
R
C
AL1
ECM
Interface
Board