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Quest CDG 74
Quest Dry
Installation, Operation and Maintenance Instructions
Installation, Operation and Maintenance Instructions
– Read and Save These Instructions –
This manual is provided to acquaint you with the dehumidifier so that installation, operation and maintenance can
proceed successfully. Ultimate satisfaction depends on the quality of installation and a thorough understanding of
this equipment. The dehumidifier is built around tested engineering principles and has passed a thorough inspection
for quality of workmanship and function.
Specifications subject to change without notice.
4201 Lien Rd
Madison, WI 53704
www.QuestHydro.com
1
Toll-Free 1-877-420-1330
info@QuestHydro.com
TS-975
11/16 Rev. A
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Summary of Contents for Quest Engineering CDG 74
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Page 1: Introduction
Quest CDG 74 Quest Dry Installation, Operation and Maintenance Instructions Installation, Operation and Maintenance Instructions – Read and Save These Instructions – This manual is provided to acquaint you with the dehumidifier so that installation, operation and maintenance can proceed successfully. Ultimate satisfaction depends on the quality of installation and a thorough understanding of this equipment. -
Page 2: Table Of Contents
Quest CDG 74 Installation, Operation and Maintenance Instructions Table of Contents Introduction ..............1 Safety ................3 1. Specifications ............4 2. Operation ..............4 2.1 Transporting ............4 2.2 Location ..............4 2.3 Electrical Requirements ........5 2.4 Condensate Removal ..........5 2.5 Ducting ..............5 2.6 Defrost Cycle ............5... -
Page 3: Safety
Quest CDG 74 Installation, Operation and Maintenance Instructions Safety Precautions Read the installation, operation and maintenance instructions carefully before installing and operating this device. Proper adherence to these instructions is essential to obtain maximum benefit from your Quest CDG 74. -
Page 4: Specifications
The Quest CDG 74 features a high-impact roto-molded housing which protects the unit airways, and while loading into vehicles. It is recommended the units are properly secured for transport. The Quest CDG 74 must always be upright when transported by vehicle. It may be tipped onto its handle and back for loading and moving by hand. -
Page 5: Electrical Requirements
2.3 Electrical Requirements The Quest CDG 74 plugs into a common grounded outlet on a 15 amp circuit. It draws 5.5 amps at 80°F, 60% RH. If used in a wet area, a ground fault interrupter (GFI) is required. If an extension cord is required, it must have a minimum of 14 gauge conductors if 25 feet long or less and 12 gauge conductors if greater than 25 feet long. -
Page 6: Purge Button
3.1 Air Filter The Quest CDG 74 is equipped with a pleated media air filter that must be checked regularly. The standard filter is a MERV-8 high efficiency filter. Operating the unit with a dirty filter will reduce the dehumidifier’s capacity and efficiency and may cause the compressor to cycle off and on unnecessarily. -
Page 7: Service
Replace the filter 4 Service WARNING: Servicing the Quest CDG 74 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. -
Page 8: Troubleshooting
Quest CDG 74 Installation, Operation and Maintenance Instructions 4.2 Troubleshooting No dehumidification, neither hour meter display nor compressor run and POWER button does not turn ON. Unit unplugged or no power to outlet Defective control board Loose connection in internal wiring No dehumidification, neither hour meter display nor compressor run with POWER button ON. -
Page 9: Air Mover
Quest CDG 74 Installation, Operation and Maintenance Instructions Air filter dirty Defective defrost thermistor Low refrigerant charge Defective compressor Restrictive exhaust ducting Unit runs but does not pump water. Hose kinked or plugged Pump motor defective Pump check valve plugged... -
Page 10: Thermistor
Quest CDG 74 Installation, Operation and Maintenance Instructions 4.4 Thermistor The defrost thermistor is attached to the refrigerant suction line between the accumulator and the evaporator. To replace thermistor: Unplug the dehumidifier Remove the front housing Cut cable ties and remove insulation and aluminum tape. -
Page 11: Wiring Diagram
CONTROL WHT-2 2 - NEUT BOARD WHT-7 BLK-3 LEVEL BLU-8 BLK-11 3 - COMP SWITCH THERMISTOR BLK-4 SAFETY BLK-15 PUMP YEL-10 WHT-6 FLOAT RED-9 WHT-7 P/N 4031273 REV C Figure 3: Electrical schematic of Quest CDG 74 1-877-420-1330 www.QuestHydro.com info@QuestHydro.com... -
Page 12: Service Parts
Quest CDG 74 Installation, Operation and Maintenance Instructions 7 Service Parts Item Description Part No. Item Description Part No. Top Cover 4031258 Wheel, 12”, Black 4026851 Filter, 12” x 12” x 1” MERV 7 4026315 Cotter Pin 1284404 Impeller, Air Mover... - Page 13 Quest CDG 74 Installation, Operation and Maintenance Instructions 1-877-420-1330 www.QuestHydro.com info@QuestHydro.com...
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Page 14: Warranty
Year One: Therma-Stor LLC warrants that, for one (1) year the Quest CDG 74 dehumidifier will operate free from any defects in materials and workmanship, or Therma-Stor LLC will, at its option, repair or replace the defective part(s), free of any charge.
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