Carrier 33WIFISTAT43 Wi-Fi Thermostat Installation Guide
Table 2 — Parameters (cont)
PARAMETER NAME/DESCRIPTION
DEFAULT AND RANGE
ID TEMP FLT INHIBIT — Allows a time delay applied to the ID TEMP fault. The range is adjustable from 10 to 240
minutes (60 default).
NOTE: Allow for recovery time when transitioning from unoccupied to occupied periods.
D: 60 mins
R: 10 to 240 mins
(10 min increments)
COOL LOCKOUT — Delays the cooling equipment demands if the outdoor air temperature is below the selected
D: 55° F
value. There is a SYSTEM EVENT warning if the mode and space temperature dictate that there should be a cooling R: Off
demand and the outdoor temperature is preventing this demand.
0° to 80° F
(5° increments)
LOW COOL LOCKOUT — (Heat pump operation only) Enables the thermostat to start all cooling stages on a demand D: Off
for cooling based on the configured value. Normal cooling always starts with first stage compressor (Y1) and stages up R: Off
to the second (Y2), when the demand is sufficient and staging and cycle timer constraints are satisfied.
If the outdoor temperature is equal to or greater than the configured value of 80 to 110°F, all stages of cooling are
energized. If set to ON, all stages are energized on a call for cooling. The outdoor temperature must also be greater
than the COOL LOCKOUT value. When a cooling cycle starts under a high cool latch, it finishes the cooling cycle on
HIGH STAGE. If the cooling equipment is energized to satisfy a dehumidify demand only (no cooling demand), the
latch is not applied.
80° to 110° F
(5° Increments)
On
LOW HEAT LOCKOUT — (Heat Pump operation only) Enables the thermostat to start all compressor heating stages D: Off
on a demand for heating, based on the configured value. When the COMPRESSOR TYPE is set to HP and
compressor heat is requested, it always starts with the first compressor stage (Y1) and stages up to second stage (Y1
and Y2) when the demand is sufficient and staging and cycle timer constraints have been satisfied.
If the outdoor temperature is equal to or less than the configured value of 20 to 50°F, both the first and second stages
of the compressor are energized to satisfy all heat pump heating demands. If set to ON, both compressors are
energized on a call for heating. The outdoor temperature must also be greater than the HP LOCKOUT value. When a
cycle starts under a high heat latch, it finishes the heating cycle on HIGH STAGE.
R: 20° to 50° F
(5° Increments)
On
TIME BETWEEN FUEL TYPES — The minimum time limit between switching from one fuel type to another (other
staging rules may also be in effect). Use only if the COMPRESSOR TYPE is set for HP.
D: 15 min
R: 10, 15, 20, 25 min
CYCLE TIMER — The maximum number of heat cycles per hour.
D:
4
R: 2, 4, 6, 8
HUMIDIFIER — The output relay enables a field-installed humidifier. The humidifier is on if there is humidity demand D: No
and any heating equipment is on. If set to YES, the thermostat cannot be configured for Humid-MiZer™/Perfect
Humidity™/Hot Gas Reheat or Dehumidification. See HUM/DEHUM OUTPUT in this table for output relay details.
R: Yes/No
D: No
R: No
Yes
DEHUMIDIFIER — Sets the output relay to enable a factory-installed Humid-MiZer™/Perfect Humidity™/Hot Gas
Reheat for dehumidification or to use the first stage of cooling.
•
•
If HUMDIMIZER, the output relay energizes the Humid-MiZer™/Perfect Humidity™/Hot Gas Reheat on the unit.
If YES, the Y1 relay is energized. A new space temp setpoint is calculated to force cooling operation.
NOTE: For details about this calculation, see HUMIDITY.
If OVRCL(2), it uses the first stage of cooling to satisfy a dehumidification demand, but will not overcool the space
by more than 2°F.
OVRCL(2)
Humdimizer
•
•
If dehumidification is configured, the thermostat cannot also be configured for a humidifier. Additional optional
functions may be limited, based on the flex outputs available.
MAX HEAT SETPOINT — The maximum heating setpoint available on the Heat Setpoint Wheel and the maximum
heating setpoint that can be used during the occupied program schedule.
D: 88° F
R: 50° to 88° F
MIN COOL SETPOINT — The minimum cooling setpoint that is available on the Cool Setpoint Wheel and the minimum D: 52° F
cooling setpoint that can be used during the occupied program schedule.
R: 52° to 90° F
AUX HEAT LOCKOUT — The outdoor temperature value that lockouts the auxiliary heat. If the AUX HEAT LOCKOUT D: Off
temperature setting is not OFF, and the outdoor air temperature is greater than AUX HEAT LOCKOUT value, then the R: Off
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.
5° to 55° F
(5° Increments)
HP LOCKOUT — If you select OFF, the heating equipment cycle always starts with the heat pump, regardless of the D: Off
outdoor air temperature.
R: Off
5° to 55° F
(5° Increments)
•
•
•
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.
D: 10 min
R: 2 to 15 min
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.
D: 30 min
R: Off
10 to 120 min
(10 min increments)
DIFFERENTIAL — The required difference between the current space temperature and the setpoint, before demand is D: 1.0° F
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.
R: 0.3° to 2.0° F
(0.1° increments)
AIR FILTER REMINDER — The number of hours before a SYSTEM EVENT reminds the occupant to change the
D: 3000 hours
R: Off
500 hrs to 15,000 hrs
(500 hour increments)
indoor air filter.
•
•
•
•
If set to OFF, a SYSTEM EVENT will not occur to remind the homeowner to change the indoor air filter.
Decrements to the timer happen each hour of total equipment runtime.
Minutes are not stored in non-volatile memory, so a power reset clears out the minutes within each hour of run time.
Once the number of hours is initially set or later changed, the filter timer must be reset on the SETTINGS screen.
7
| General | Details |
|---|---|
| Name | Carrier 33WIFISTAT43 Wi-Fi Thermostat Installation Guide |
| Make | Carrier |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.39 MB |
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