8
QUEST 746
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
QUESTCLIMATE.COM
(877) 420-1330
6. MAINTENANCE
WARNING!
Do not operate the unit without the filter or with a less effective
filter. Filter non-compliance invalidates the product warranty.
6.1 STANDARD AIR FILTER
The Quest 746 Dehumidifier ships with two standard MERV 13 efficient pleated fabric filters. This filter
should be checked every six months. Operating the unit with a dirty filter will reduce dehumidifier
capacity and efficiency.
To access the air filter, the filter should be readily visible and can be removed by pulling it straight out of
the Quest 746 Dehumidifier.
For agriculture, we recommend changing the filter with every grow cycle.
7. SERVICE
WARNING!
Servicing the Quest 746 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
personnel 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 746 Dehumidifier uses a refrigeration system to remove 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.
