3
WIRING DIAGRAM
ACRDJ – Air Conditioning Relay Disable
Jumper (Adaptive Cooling)
The control can operate a two-speed A/C unit with a single-
stage thermostat using an adaptive algorithm which selects
between low-cooling or high-cooling operation. Operation is
based on the length of the previous cooling period. For single
stage thermostat applications with a two-stage outdoor unit,
ensure the
ACRDJ jumper
is present.
NOTE: For adaptive cooling operation, connect
thermostat cool input to Y1 terminal (yellow wire of “A”
harness).
LHT – Low Heat Only (Adaptive Heating)
The control can operate a two-speed furnace with a single-
stage thermostat using an adaptive algorithm which selects
between low-heating or high-heating operation. Operation
is based on the length of the previous heating period. For
single stage thermostat applications with a two-stage furnace,
ensure the
LHT dipswitch
is set to ON.
NOTE: For adaptive heating operation, connect
thermostat heat input to W/W1 terminal (white wire of “A”
harness).
