SERVICING
73
COOLING EMERGENCY MODE WIRING FOR TXV
APPLICABLE 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 thermostat input
terminals are to be wired when selecting a cooling
airflow. Note: the blower will run continuously 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.
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