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Quest 185 Cool
Installation, Operation and Maintenance Instructions
20
www.QuestHydro.com
CONTROLS
A low voltage control must be used with the Quest 185 Cool.
Basic Control Wiring
Control
Dehumidifier
Yellow
Yellow
Blue
Blue
Low Voltage
Wiring
Green (or brown)
Fan control
Blue
Dehumidification (fan and compressor) control
Red
24 VAC power transformer neutral side (common with white)
White
24 VAC power transformer neutral side (common with red)
Yellow
Transformer high side
Five Color Coded Wires Control Operation
Unit ON & Fan ON
Make contact between yellow and blue wires
Unit OFF / Fan On
Make contact between yellow and green (or brown) wires
Power HVAC Accessory
Connect the accessory to the white (or red) wire and the yellow wire
Between the red/white lead and the yellow lead is a 40VA transformer. This low voltage power source powers the relay
coils which control the fan and compressors. This 24 VAC transformer can also be used to power HVAC accessories
external to the dehumidifier.
