Carrier TP -PRH Installation Instructions Manual page 44

Table 2 – Humidification Selections
SELECTION FAN DISPLAY
Normal Humidify Blank
Auto Humidify AUTO
Humidify Off Blank
1. Humidify
In normal humidify, humidifier will be on if there is humidity demand
and any heating equipment is on. This will include furnace, heat pump, or
auxiliary heat.
2. Auto Humidify
Thermidistat Control will automatically adjust the humidity setpoint ac-
cording to the outdoor temperature. As the outdoor temperature de-
creases, the humidity setpoint also decreases. Settings ranging from 1 to
9, 1 being the lowest and 9 the highest, will be visible to the homeowner.
See Fig. 16 for outdoor temperature/indoor humidity relationship in auto
humidify mode.
3. Humidify Off
The humidify function can be turned off completely. This does not re-
quire changing existing setpoints.
To Select Humidification (programmable)
Press the soft key below the humidify icon to bring up humidity select screen.
Humidify options are only available when in Heating mode. When system is in
AUTO mode, humidify options are available if the last system operation was a
call for heat.
HUMIDIFY SETPOINT
DISPLAY
10 ---46
1 ---9
OF (Off)
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