Installation guide

Figure12 1 Typical Thermostat (Control Circuit) Connections
NOTE: WHEN USING OUTDOOR THERMOSTATS, W 2 MUST BE ENERGIZED WHEN REQUESTING SUPPLEMENTAL HEAT.
SYSTEMS WITH ONE OUTDOOR THERMOSTAT SYSTEMS WITH TWO OUTDOOR THERMOSTATS
THERMOSTAT DEFROST THERMOSTAT INDOOR OUTDOOR
SUBBASE BOARD SUBBASE SPLICE SPLICE
CONNECTION CONNECTION
_<
[_ ......
[]
[]
D-
I
INDOOR
SPLICE
CONNECTION
I
_,__
I
OUTDOOR
SPLICE
CONNECTION
_ _ _ __"
.... _ -0
.... _ -0
.... _ _
.... _/_ _
ODT
D-
[]
D-
D-
D _
D-
D-
I
/wo\
i
..... i- •
I
J
h
2
z_
-0
-0
-0
Z
DEFROST
BOARD
/
ODT
ODT
REMOVE WIRES FROM CRIMP NUT IN INDOOR FAN COILWHEN INSTALLING OUTDOOR THERMOSTATS,
SYSTEMS WITHOUT OUTDOOR THERMOSTATS
INDOOR OUTDOOR
THERMOSTAT
SUBBASE
D _ .
_]--.
[]
[_--.
[_--.
[]
[_--.
[_--.
I
SPLICE SPLICE
CONNECTION CONNECTION
/W_\
/Ft \
_ J \ _-
DEFROST
BOARD
-O
-o
41
-o
-o
@
@
LEGEND
24-v FACTORY WIRING
24-V FIELD WIRING
FIELD SPLICE CONNECTION
OUTDOOR THERMOSTAT
EMERGENCY HEAT RELAY
SUPPLEMENTAL HEAT RELAY
DEFROST SYSTEM
A. DEFROST THERMOSTAT
The defrost thermostat is factory installed on a short tube
stub extending from the coil end plate. Refer to Figure 13
and confirm that the thermostat is securely fastened in
place on the tube stub,
10 428 01 5100 01