9
QUEST 506
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
QUESTCLIMATE.COM
(877) 420-1330
6.1 STANDARD AIR FILTER
The Quest 506 Dehumidifier ships with a standard MERV 13 efficient pleated fabric filter. This filter
should be checked every six months. Operating the unit with a dirty filter will reduce dehumidifier
capacity and efficiency and may cause the compressor to cycle off and on unnecessarily on the
defrost control.
To access the air filter, the filter should be readily visible and can be removed by pulling it straight
out of the Quest 506 Dehumidifier.
We recommend changing the filter at least with every grow cycle.
7. SERVICE
WARNING!
Servicing the Quest 506 with its high pressure refrigerant
system and high voltage circuitry presents a health hazard which could result in
death, serious bodily injury, and/or property damage. Only qualified service people
should service this unit.
7.1 WARRANTY
A warranty certificate has been enclosed with this unit; read it before any repair is initiated. If a
warranty repair is required, call the factory first at 1-877-420-1330 for warranty claim authorization
and technical assistance.
7.2 TECHNICAL DESCRIPTION (NON STANDARD PATENTED)
The Quest 506 Dehumidifier uses a refrigeration system similar to an air conditioner’s to remove
heat and moisture from incoming air, and add heat to the air that is discharged.
Hot, high-pressure refrigerant gas is routed from the compressor to the condenser coil. The
refrigerant is cooled and condensed by giving up its heat to the air that is about to be discharged
from the unit. The refrigerant liquid then passes through a filter/drier and expansion drier which
causes the refrigerant pressure and temperature to drop. It next enters the evaporator coil where the
cool refrigerant absorbs heat from the incoming air and evaporates.
The compressor evacuates the cool refrigerant vapor from the evaporator and compresses it to a
high pressure and temperature to repeat the process.
7.3 TROUBLESHOOTING
Neither fan nor compressor running. Dehumidification is being called for. No fan call.
1. Unit unplugged or no power to outlet.
2. Humidity control set too high.
3. Loose connection in internal or control wiring.
4. Defective Compressor relay.
5. Defective control transformer.
Compressor is not running. Dehumidification is being called for. No fan call.
1. Defective compressor run capacitor.
2. Loose connection in compressor circuit.
3. Defective compressor overload.
4. Defective compressor.
5. Defrost thermostat open.
