48
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 i n g a n d C o o l i n g S y s t e m s
C L I M AT E M A S T E R W AT E R - S O U R C E H E AT P U M P S
P a c k a g e d U n i t s
R e v. : 1 / 0 6 / 0 9 B
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 Figures 25a
through 25c to the low voltage terminal strip on the CXM,
DXM or ECM control board. Practically any heat pump
thermostat will work with ClimateMaster units, provided it
has the correct number of heating and cooling stages.
Figure 25b: Units With Optional ECM Fan.
(
A Two Stage Thermostat Is Required)
Figure 25a: Units With PSC Fan And CXM
Figure 25c: GC/GS/TT/TS Series With ClimaDry™
Reheat Option (DXM Board Required) And ATP32U02
Thermostat
$7387KHUPRVWDW
&RQQHFWLRQWR';0&RQWURO36&0RGH
&RPSUHVVRU
'HKXPLGLILFDWLRQ
5HYHUVLQJ9DOYH
)DQ
9DF+RW
9DF&RPPRQ
)DXOW/('
<
'+
2
*
5
&
/
<
+
2:
*
5
&
$/
';0
6LQJOHVWDJHXQLWZLWK&OLPD'U\0RGXODWLQJ5HKHDW2SWLRQDQG
';0ERDUG36&RUEHOWGULYHIDQPRWRU
Electrical - Thermostat Wiring
ATM11C01 Thermostat
Connection to CXM Control
Compressor
Reversing Valve
Fan
24Vac Hot
Y
W
O
G
R
Y
O
G
R
CXM
ATA22U01 Thermostat
Connection to ECM Control
Compressor
Heating Stage 2
Reversing Valve
Fan
24Vac Hot
24Vac Common
Fault LED
Y1
Y2
O
G
R
C
L
Y
Y2
O
G
R
C
AL1
ECM
Interface
Board
$7387KHUPRVWDW
&RQQHFWLRQWR(&0 ';0&RQWURO
&RPSUHVVRU
&RPSUHVVRU6WDJH
5HYHUVLQJ9DOYH
)DQ
9DF+RW
9DF&RPPRQ
)DXOW/('
(&0
<
5
&
$/
<
<
'+
2
*
5
&
/
'HKXPLGLILFDWLRQ
';0
<
+
2:
*
6LQJOHRUWZRVWDJHXQLWZLWK&OLPD'U\0RGXODWLQJ5HKHDW
2SWLRQDQG';0ERDUG(&0IDQPRWRU
7HUPLQDO
%ORFN
:
:
Units with ClimaDry™ Reheat & ECM Fan
Field Wiring
Factory Wiring
Summary of Contents for Genesis Compact (GC) Series
Page 2: ......
