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Heat Pump Diagram 1: 1 or 2 Stage Heat Pump w/TAM7 Model Variable Speed Air Handler
G
W1
YI (In)
R
B/C
Y2
BK
W2
Y1
R
B
Y2
Notes:
1. Cut/remove the factory installed “BK” jumper at the indoor unit
2. Jumper “W2” to “W3” if three stages of indoor heat is available
3. “YI” and “YO” connections must be made as shown for freeze
protection and internally mounted condensate overflow circuits to
work properly
4. If 3rd party condensate overflow switches are installed, they
should be wired between “Y1” of the thermostat and “YI” of the
airflow control board
Sensor Options in the Installer Settings/Sensor Settings menu
Remote Sensor (connect to the RS terminals)
- None
- Replaces internal sensor
- Average with internal sensor
Outdoor Temp Sensor (connect to the ODT terminals)
- None
- Outdoor
Caution: Do not run sensor wires in the same bundle with HVAC
wires. Keep away from high voltage wiring to avoid interference.
Remote Tempurature Sensor Connections and Operation:
Aux relay
outputs
RS
C
RS
R
ODT
W1
W2
BK
ODT
NO
C
Y1
NC
Y2
O/B
G
Thermostat Connection
Outdoor
Sensor
Remote
Sensor
O
W3
X2
O
YO
Variable Speed Air
Handler & Electric Heat
One or Two stage
Heat Pump
(Note 2)
(Note 3)
(Note 4)
(Note 1)
Variable Speed Air
Handler & Electric Heat
Heat Pump Diagram 2: 1 Stage Heat Pump w/”GAM5A” & “TAM4” Model Air Handler
G
W1
YI
R
B/C
Y
W2
One stage
Heat Pump
Y
R
B
Notes:
1. Jumper “W2” to “W3” if three stages of indoor heat is available
2. “YI” and “YO” connections must be made as shown for freeze
protection and internally mounted condensate overflow circuits to
work properly.
3. If 3rd party condensate overflow switches are installed, they
should be wired between “Y” of the thermostat and “YI” of the
airflow control board.
Sensor Options in the Installer Settings/Sensor Settings menu
Remote Sensor (connect to the RS terminals)
- None
- Replaces internal sensor
- Average with internal sensor
Outdoor Temp Sensor (connect to the ODT terminals)
- None
- Outdoor
Caution: Do not run sensor wires in the same bundle with HVAC
wires. Keep away from high voltage wiring to avoid interference.
Remote Tempurature Sensor Connections and Operation:
Aux relay
outputs
RS
C
RS
R
ODT
W1
W2
BK
ODT
NO
C
Y1
NC
Y2
O/B
G
Thermostat Connection
Outdoor
Sensor
Remote
Sensor
O
W3
X2
O
(Note 1)
(Note 2)
(Note 3)
O
Heat Pump Wiring Diagrams
Installer’s Guide