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Setting
Range
Default
HEAT 4 DELAY
Select the time delay when the fourth stage heating
turns on. The time delay starts counting after the
third stage heating is turned on. This setting is
available when a heat pump is selected and there
are at least 4 heating stages.
0 to 180
minutes
1 minute
COOL 2 DIFFERENTIAL
Select when the second stage cooling turns on. Turn
on point is the Cool To setting plus the differential.
This setting is available when there are two cooling
stages.
2.0 to 10.0°F
1.0 to 5.6°C
2.0°F
1.2°C
COOL 2 DELAY
Select the time delay when the second stage cooling
turns on. The delay time starts counting after the first
stage cooling is turned on. This setting is available
when there are two cooling stages.
0 to 180
minutes
1 minute
Y MIN RUN TIME
Select the minimum time the cooling compressor
must run before shutting off. This helps prevent
compressor failure.
0:30 to 10:00
minutes
2:00
minutes
Y MIN OFF TIME
Select the minimum time the cooling compressor
must be off before turning back on. This helps
prevent compressor failure.
0:30 to 10:00
minutes
5:00
minutes
DUAL FUEL
Select dual fuel on if the heat pump has 100%
backup using a furnace or hydronic fan coil. The
setting is available for heat pump systems with
auxiliary heat.
Off or On
Off
ACCESSORY RELAY 1
Select the type of equipment that the accessory
relay 1 operates.
Off,
Humidifier,
Dehumidifier,
Ventilation,
HP Loop Valve
Off
ACCESSORY RELAY 2
Select the type of equipment that the accessory
relay 2 operates. This setting is only available for
conventional heating systems.
Off,
Humidifier,
Dehumidifier
Off
HEAT PUMP REVERSING VALVE
Select O for heat pumps designed for normally
heating operation. Select B for heat pumps designed
for normally cooling operation. This setting is only
available for heat pump systems.
O (Orange),
B (Blue)
O
Setup - Relays (2 of 3)
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