SERVICING
59
COOLING EMERGENCY MODE WIRING FOR TXV APPLI-
CABLE INDOOR UNIT
Cooling emergency mode is available when using a
TXV applicable indoor unit. To energize the blower at
the appropriate speed, standard Legacy wiring is
required. The image below shows how the thermo-
stat input terminals are to be wired when selecting a
cooling airflow. Note: the blower will run continu-
ously with this wiring which is required. The outdoor
unit will cycle as described in the Cooling Emergency
Mode section when appropriate dip switch modes are
set.
1
2R
C
G
W1 W2
Y1 Y2
0
DEHUM
Indoor Unit Integrated Control Module
Note: Emergency heating mode is not available with
TXV applicable indoor units. If communications still
exist between the indoor unit and thermostat, the
thermostat should be used to provide heating calls.