Installation Manual

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In normal humidify, the humidifier will be turned on if there is humidity demand and any
heating equipment is on. This will include furnace, heat pump, or auxiliary heat. The
humidifier will only operate when the heating equipment is operating.
2. Auto Humidify
The Thermostat will automatically adjust the humidity setpoint according to the outdoor
temperature. As the outdoor temperature decreases, 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. 18 for outdoor temperature/indoor humidity relationship in auto
humidify mode. Outdoor Air Temperature Sensor must be connected or Wi-Fi internet
weather setup.
3. Humidify with Fan
The humidity output and the fan will energize anytime humidification is needed during
heating mode regardless of the state of the heating equipment.
4. Hum Off
This turns off the humidifier operation.
Additional Humidify Comments
The humidifier is actually turned on when humidity is 1% below setpoint and
turned off when it reaches 1% above setpoint. This built--in hysteresis prevents
humidify output from toggling on and off when humidity level is near setpoint.
Dehumidification
Dehumidification is done only during cooling. Depending on type of equipment used,
compressor speed, blower speed, setpoint adjustment, and equipment cycling are modified to
provide added dehumidification. A dehumidification setpoint (separate from humidification
setpoint) is available to the homeowner. It can range from 46% to 66% relative humidity. When
actual humidity is higher than setpoint, a dehumidification demand exists. The Côr 7 Thermostat
responds by activating the dry contact (when enabled in SW19). It may also control the
compressor and blower, depending on equipment type and dehumidify selection choice. The 3
available selections are described below. A mandatory 5 minute blower off delay will be
enforced if there has been a call for dehumidification during a cooling call. The amount of extra
dehumidification available is very dependent on the type of equipment in the home. Without a
variable--speed blower, the system’s ability to adjust dehumidification is very limited.
1. Normal Dehumidify Operation
When normal dehumidify is selected, the compressor will not turn on without a
cooling demand. If dehumidify demand exists while cooling, dry contact will also be
active (24VAC removed). This output commands variable-- speed blowers to reduce
their airflow, which improves water removal from the cooled air.
2. Cool to Dehumidify
The cool to dehumidify selection tells the system to operate the compressor, within
limits, when there is a dehumidify demand even if there is no cooling demand. The