Venstar T7900 - Manual (Page 34)

26
Main Menu Buttons -
Humidity
The Humidity feature allows the thermostat to
control a humidifier or use your air conditioner
to dehumidify the space
See: AUX Output Settings on page 39.
Humidification Settings
Humidify with heat - OFF
Adjust Humidify setpoint. (0% - 60%)
When this step is ON, Humidify will only run with a demand for heat.
Run fan - OFF
When this step is ON, the fan will run with a call for Humidification.
Humidify setpoint
Dehumidification Settings
Run A/C to dehumidify - OFF
Adjust Dehumidify setpoint. (25% - 99%)
When this step is ON, the A/C system will be used for Dehumidification.
Maximum Overcool
This specifies how many degrees the A/C system will run past the cool
setpoint to satisfy a demand for Dehumidification. (0-20 degrees F)
Dehumidify setpoint
Humidity
IMPORTANT: Aux Output Usage must be set for Hum or
Dehum for these settings to take effect.
(0%)
(0%)
Reheat - OFF
This turns on electric strip heat during an A/C to dehumidify demand to help
maintain desired room temperatures. (Run A/C to dehumidify must be set to ON
and the GAS ELEC Dip Switch must be set to ELEC - page 52 - to access this feature.
Dehumidify only when cooling - ON
Run dehumidification only when HVAC calls for A/C