Carrier Connect 33CONNECTSTAT43FX - Page 42

Using installer settings
Carrier Connect™ Wi-Fi Thermostat 33CONNECTSTAT43FX CARRIER CORPORATION ©2021
Installation Guide All rights reserved
38
Setting
Default/Range
HUMIDIFIER—Enables humidifier control functionality. When humidifier control is
enabled, the humidifier is energized if there is humidity demand and any heating
equipment is energized.
The output (Y3, O/B or W2) is a 24 Vac output only (sourced from R) and must be
isolated with a relay at the indoor equipment if 120 Vac is needed to interface to a
humidifier unit.
NOTE Humidifier functionality is not available if HEATING STAGES is set to NONE.
D:
R:
NO
NO
YES
HUM OUTPUT—Select which output relay to use for the humidifier. The choices only
include outputs that are not already assigned to another function.
The output that is selected (Y3, O/B or W2) is used to control the humidifier equipment.
NOTE HUM OUTPUT is only available if the HUMIDIFIER setting is YES.
The HUM OUTPUT option is not available if the Y3, O/B and W2 relays are already being
used for other functions.
• The Y3 output is used for 3 stages of cooling, the humidifier, and the dehumidifier
setting of HumidiMiZer™.
• The O/B output is used for heat pump equipment, the humidifier, and the
dehumidifier setting of the HumidiMiZer™.
• The W2 output is used for 2 stages of heating, the humidifier, and the dehumidifier
setting of HumidiMiZer™.
D:
R:
OFF
OFF
Y3
O/B
W2