Carrier PERFORMANCETSERIES EDGER THERMIDISTATT CONTROL TP-PRH-A - Manual (Page 48)

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When changing Vacation settings, the soft keys are used to choose the selection
to be adjusted and the UP/DOWN buttons are used to change the setting.
Humidify setting may only be changed when heat mode is selected and
Dehumidify setting may only be changed when cool mode is selected.
Humidity Control Features
The various humidity control features of the Thermidistat Control are explained
below. They are grouped into 2 sections, humidification and dehumidification.
Instructions on how to select each feature are given at the end of each section.
Humidification
The Thermidistat Control directly connects to a standard 24VAC humidifier to
control humidification in the home. A humidify setpoint between 10 and 44% in
2% increments relative humidity is selected by the homeowner, or all
humidification can be turned off. When humidity in home drops below setpoint,
humidifier will be turned on to raise humidity level. Humidification can only
occur while in heating mode. See Table 2 for reference.
Table 2 – Humidification Selections
SELECTION FAN DISPLAY
HUMIDIFY SETPOINT
DISPLAY
Normal Humidify Blank 10-44
Auto Humidify AUTO 1
Humidify Off Blank OF (Off)
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.