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Using installer settings
Carrier Connect™ Wi
-Fi Thermostat 33CONNECTSTAT43FX
CARRIER CORPORATION ©2021
Installation Guide
All rights reserved
39
Setting
Default/Range
DEHUMIDIFIER
—
Enable the dehumidification functionality.
Range:
•
NO
–
Dehumidification is disabled
•
YES
–
When the humidity is above the dehumidify target, the cooling setpoint is
adjusted downward, increasing the cooling demand according to the following
equations. The system uses the first stage of cooling to satisfy the dehumidify
demand.
Cooling setpoint
Algorithm
<= 70°F
Use the cooling setpoint only
70.1°F
–
74.9°F
Cooling setpoint = Cooling Setpoint
–
(Cooling Setpoint -
70°F) x (Dehumidify Error / 10) with maximum
dehumidify Error of 6% (i.e. use 6% if >6%)
>= 75°F
Cooling setpoint = Cooling Setpoint
–
(Dehumidify Error
/ 2) with maximum dehumidify Error of 6%
•
OVCL
- Commands the system to operate the compressor, within limits, when there is
a dehumidification demand, even if there is no cooling demand. The system uses
first stage of cooling to overcool up to 2°F and no more, when satisfying a
dehumidification demand.
•
HMZR
-
When configured as a HumidiMiZer™ output, and the humidity level is above
the dehumidify target, 24V is output at the selected terminal. When the humidity
level is below the dehumidify target, 0 Vac is output on the selected terminal. There
is a +1/-4% hysteresis around the dehumidify target to prevent rapid on/off cycling
of the selected output.
This output may be connected to compressor outputs on commercial equipment. If the
selected output is energized without any compressors being energized, the 5-minute time
guard must be enforced.
NOTE If the
COMPRESSOR TYPE
is set to
NONE
, dehumidification is not available.
D:
R:
NO
NO
YES
OVCL
HMZR
DEHUM OUTPUT
—
Select which output relay to use for the HumidiMiZer™ function of the
dehumidifier. The choices
only include outputs that aren’t already assigned to another
function and is only available if the dehumidifier selection is set to HumidiMiZer™.
When dehumidi
fier setting is HumidiMiZer™, the selected relay controls the
HumidiMiZer™ equipment.
This setting is not available if the configurable outputs (
Y3
,
O/B
, and
W2
) are already
assigned to other functions.
Any configurable output that is already assigned to another function is not shown in the
DEHUM OUTPUT
selections.
D:
R:
OFF
OFF
Y3
O/B
W2
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