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Configuring the system
Parameter Name/Description
MIN COOL SETPOINT — The minimum cooling setpoint that is available on the Cool
Setpoint Wheel and the minimum cooling setpoint that can be used during the occupied
program schedule
AUX HEAT LOCKOUT — The outdoor temperature value that lockouts the auxiliary heat. If
the AUX HEAT LOCKOUT temperature setting is not OFF, and the outdoor air temperature
is greater than AUX HEAT LOCKOUT value, then the Aux Heat (W1 and W2) outputs are
not energized. Once the output is energized, it remains energized until the demand
algorithm no longer requires the capacity of the auxiliary heat, regardless of the value of
the outdoor air temperature.
NOTE If the MODE is emergency heat (E-HEAT), the auxiliary heat is allowed to be
energized regardless of the outdoor temperature.
HP LOCKOUT — If you select OFF, the heating equipment cycle always starts with the heat
pump, regardless of the outdoor air temperature.
•
If you select a lockout temperature and the outdoor air temperature is less than the
selected temperature, the heating cycle is started with the AUX HEAT source.
•
If the outdoor air temperature is equal to or greater than the selected temperature,
the heating cycle is started with the heat pump.
•
If the outdoor temperature is not available, all heating cycles start with compressor
heat. Once the heat pump is energized, it remains energized until the heating
demand no longer requires heat pump heating, regardless of the outdoor air
temperature.
•
When the heat pump is not energized, but there is sufficient demand to request heat
pump heating, the heat pump lockout temperature is checked against the outdoor
air temperature, and if the outdoor air temperature is greater than the heat pump
lockout temperature, the heat pump is energized.
STAGE DELAY — The minimum amount of time the current stage must be energized
before staging up to the next stage of capacity.
NOTE If the system demand is greater than 3°F, then this configuration is ignored for
the current heating or cooling cycle because the staging timers are canceled to allow full
equipment capacity to meet the large demand.
FORCED STAGE UP — The amount of time another stage of heat or cool is enabled if the
space temperature conditions are not improving. If the time in a current demanded stage
reaches the selected forced stage-up time, the thermostat stages up to the next
available stage of capacity, even if DIFFERENTIAL demand is not met.
DIFFERENTIAL — The required difference between the current space temperature and
the setpoint, before demand is initiated. This value is additive for each new stage of
equipment being demanded.
EXAMPLE A chosen DIFFERENTIAL value of 0.5°F requires 0.5°F difference between
setpoint and space temperature before first stage is turned on. Then, 1°F of difference
between setpoint and space temperature is necessary before the second stage is turned
on.
33CONNECTSTAT43
Installation Guide
18
Default and Range
D:
52°F
R:
52 to 90°F
D:
OFF
R:
OFF
5 to 55°F
(5°F increments)
D:
OFF
R:
OFF
5 to 55°F
(5°F increments)
D:
10 MIN
R:
2 MIN to 15 MIN
D:
30 MIN
R:
OFF
10 MIN to 120 MIN
(10 minute increments)
D:
1.0°F
R:
0.3 to 2.0°F
(0.1°F increments)
©2022 Carrier.
All rights reserved.
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