Humidification and Dehumidification (4235 only) cont.
If the Auto Humidity Setpoint Limit was enabled, the humidification
set point may be limited based on the current outdoor temperature.
This helps prevent over humidification in extremely cold weather.
When there is a call for humidification or dehumidification, the
thermostat will indicate HUMIDIFY or DEHUMIDIFY in the lower
left side of the display screen (Figure 4).
Figure 4
Additional Commercial Features
These features are only available if configured as
a Commercial Thermostat.
Pre-Occupancy Purge
If enabled, Pre-Occupancy Purge will turn on the system fan
for up to 3 hours before the start of the occupied (OCC) program
event. The fan mode will not change, but the fan icon will turn
on to indicate the fan is running.
33 User Manual