15 33-00462—05
Fig. 31. Wired to fresh air damper powered by furnace
transformer
Fig. 32. Wired to humidifier, ventilator, or damper
powered by external transformer
Fig. 33. Wired to low speed fan terminal on HVAC for
dehumidification
Damper
C from furnace
or air-handler
M37824
Humidifier,
dehumidifier,
or ventilator
R from 24 volt
transformer
C (common) from
24 volt transformer
M37825
Dehumidifier*
Furnace or
air-handler
* Label for this terminal
varies by equipment
M37826