Install Instructions
21
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 1 DIFFERENTIAL
Select when the first stage cooling turns on. Turn on point is
the Cool To setting plus the differential.
0.9 to 2.0°F
0.5 to 1.05°C
1.4
°
F
0.75
°
C
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.
1.0 to 10.0°F
0.6 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
Setup - Relays (2 of 3)










