Single Stage Heat Pump - AMX ENV-VST-C Instruction Manual

Installation and Wiring

Single Stage Heat Pump

See note below
Single Stage Heat Pump wiring
FIG. 8
NOTE: Either the B or O relay will be connected to the reversing valve based on the type of reversing valve used (B is energized for
heating, O is energized for cooling). Connect one or the other. DO NOT CONNECT BOTH.
See the Changing the Type of HVAC System section on page 38 for information on indicating the thermostat is connected to a Single
Stage Heat Pump system.
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ENV-VST-C - Instruction Manual