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NOTES:
1. Jumper between W2 and E is required.
2. C &W2 to be connected to electric heat.
R O
NOTE 1
C
W2
O
R
Y
OUTDOOR
SECTION
SINGLE STAGE
HEAT PUMP THERMOSTAT
R O
W2
E
C
G Y
B
NOTE 1
C
W2
O
R
Y
OUTDOOR
SECTION
SINGLE STAGE
HEAT PUMP THERMOSTAT
W2
E
C
G Y
B
TYPICAL HEAT PUMP THERMOSTAT CONNECTION (NO ECONOMIZER)
TO FIELD
SUPPLIED DISCONNECT
GND
BLOWER
NOTE 5
FREEZESTAT
B
BLACK
BROWN
NOTE 3
GREEN
G
BLACK
C
W2
O
NOTE 2
R
Y
NOTE 4
Y2
W1
TERMINAL
BOARD
C7150
AIR HANDLER
M.A.S.
SECTION
TYPICAL HEAT PUMP THERMOSTAT CONNECTION (WITH ECONOMIZER)
Figure 8. Typical Heat Pump Thermostat Connections
TO FIELD
SUPPLIED DISCONNECT
GND
FREEZESTAT
BROWN
GREEN
G
BLACK
C
W2
O
NOTE 2
R
BLACK
Y
W1
TERMINAL
BOARD
AIR HANDLER
1. Jumper between W2 and E is required.
2. C & W2 to be connected to electric heat.
3. Remove BLACK wire from air handler low voltage terminal board
Y terminal and connect to YELLOW wire from economizer.
4. 2nd Stage refrigerant cooling with optional economizer installed. A 2
stage thermostat is required for simultaneous operation of the economizer
and refrigerant system. Connect Y2 from 2 stage thermostat to BLUE
wire from economizer. If installing an economizer in this unit, refer to the
Economizer installation instructions for proper set up and operation.
5. Heat Pump Economizer Relay. Connect B from thermostat to GREY
L1
wire from Economizer. Required for proper operation of an economizer
(optional) in the heat pump Heating mode. If installing an economizer in
L2
this unit, refer to the Economizer installation instructions for proper set
L3
up and operation.
GRY-90"
MOTER
A
B
7
9
GREY
Y1
YELLOW
4
6
1
3
GREEN
BLACK
WHITE
ORANGE
BLUE
RED
RED
OPTIONAL
ECONOMIZER
L1
L2
L3
BLOWER
MOTER
SECTION
NOTES:
W7459A
GRN-18"
TR
TR 1
GRN-18"
VIO-14"
S
o
s
BLU-14"
JUMPER
C7400A
S
r
WIRE
5
YEL-18"
1
2
1S
2K
3
4
1S
T
T1
P
P1
TB-11
M7415A
TR
BLK-12"
TR1
T
RED-12"
T1 MA
GRY-12"
P1
BLK-12"
MIN.
P
POT.
BLU-12"
15
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