W8710A EQUIPMENT MONITORING SYSTEM
5
68-0256
Fig. 4. Conventional wiring diagram.
Fig. 5. Heat pump wiring diagram.
Wiring External Air Temperature Sensor (Use
with Heat Pump Systems)
Connect the external air temperature sensor to the W8710A
terminals. For instructions on mounting the sensor, see
instructions packaged with the sensor.
NOTE: The W8710A has a factory default outside air tem-
perature setting of 46°F (8°C) that can be used
instead of an external air temperature sensor in mod-
erate climates. But when maximum accuracy is
desired, install the 32005321-001 External Air Tem-
perature Sensor to override the 46°F (8°C) default
setting.
M14923
FURNACE/AIR HANDLER
W8710 WIRING TERMINALS
THERMOSTAT
F2
F2
RED
YEL
EXT.
TEMP.
GRN
W2
G
C
R
W
/Y
Y
/O
G
Y
W
C
R
F1
F1
THERMOSTAT
AUXILIARY
SENSOR
AUXILIARY
SENSOR
G
Y
W
C
R
M14924
FURNACE/AIR
HANDLER
W8710 WIRING TERMINALS
THERMOSTAT
F2
F2
RED
YEL
EXT.
TEMP.
GRN
W2
G
C
R
W
/Y
Y
/O
G
W2
W2
O
W1
C/X
R
F1
F1
THERMOSTAT
OUTDOOR
TEMPERATURE
SENSOR
AUXILIARY
SENSOR
AUXILIARY
SENSOR
G
O
Y
C
R