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Quest CDG 74 

Installation, Operation and Maintenance Instructions

  

1-877-420-1330

 

2

www.QuestHydro.com

[email protected]

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

  2.7 Power Button  .......................................................5

  2.8 Purge Button  .......................................................6

  2.9 Hour Meter  ..........................................................6

  2.10 Hours Button  .....................................................6

  2.11 Defrost Light  .......................................................6

3.  Maintenance  ...............................................................6

  3.1 Air Filter  ................................................................6

  3.2 Storage  .................................................................6

4.  Service  .........................................................................7

  4.1 Technical Description  ..........................................7

  4.2 Troubleshooting  ...................................................8

  4.3 Air Mover  .............................................................9

  4.4 Thermistor  .........................................................10

  4.5 Condensate Pump .............................................10

  4.6 Float Safety Switch  ...........................................10

5.  Options & Accessories  ............................................10

6.  Wiring Diagram  ......................................................... 11

7.  Service Parts  ............................................................. 12

 Warranty 

 ...................................................................14

Summary of Contents for CDG 74

Page 1: ...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 TS 975 11 16 Rev A 1 4201 Lien Rd Madison WI 53704 Toll Free 1 877 420 1330 www QuestHydro com info QuestHydro com Specifications s...

Page 2: ...cal Requirements 5 2 4 Condensate Removal 5 2 5 Ducting 5 2 6 Defrost Cycle 5 2 7 Power Button 5 2 8 Purge Button 6 2 9 Hour Meter 6 2 10 Hours Button 6 2 11 Defrost Light 6 3 Maintenance 6 3 1 Air Filter 6 3 2 Storage 6 4 Service 7 4 1 Technical Description 7 4 2 Troubleshooting 8 4 3 Air Mover 9 4 4 Thermistor 10 4 5 Condensate Pump 10 4 6 Float Safety Switch 10 5 Options Accessories 10 6 Wiring...

Page 3: ...nd service DO NOT INSTALL UNIT WITH THE SERVICE PANELS INACCESSIBLE Avoid directing the discharge air at people or over the water in pool areas If used near a pool or spa be certain there is NO chance the unit could fall into the water be splashed and that it is plugged into a GFI GROUND FAULT INTERRUPT OUTLET DO NOT use the device as a bench or table DO NOT place the device directly on structural...

Page 4: ... 246 503 8 938 981 2 Operation Place dehumidifier inside structure place condensate hose into a drain or a very large container and turn on To decrease drying times make sure all windows and doors are closed to the outside and seal off the wet area from any unaffected areas 2 1 Transporting The Quest CDG 74 features a high impact roto molded housing which protects the unit airways and while loadin...

Page 5: ...when the reservoir is full Use the PURGE button to manually remove condensation 2 5 Ducting A wire duct collar is supplied to allow 10 lay flat duct to be attached to the Quest CDG 74 outlet Lay flat plastic ducting is available see accessories table page 6 To attach ducting to the wire duct collar put the plastic duct end through the collar center and roll the duct end outward so that it overlaps...

Page 6: ...FROST Light The DEFROST light turns on when the unit is in defrost cycle and indicates when the compressor is off 3 Maintenance 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 th...

Page 7: ...ont housing in place 4 1 Technical Description The Quest CDG 74 uses a refrigeration system similar to an air conditioner s to remove heat and moisture from incoming air and to 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 disch...

Page 8: ... 2 Defrost thermistor defective or loose 3 Loose connection in compressor circuit 4 Defective compressor overload 5 Defective compressor 6 Defective relay 7 Upper housing is not sealed to lower housing No dehumidification air mover runs but compressor does not 1 Bad connection in compressor circuit 2 Safety float switch closed check pump reservoir 3 Defective compressor capacitor 4 Defective compr...

Page 9: ...in PURGE button circuit 2 Defective control board Evaporator coil frosted continuously low dehumidifying capacity 1 Defrost thermistor loose or defective 2 Low refrigerant charge 3 Dirty air filter or restricted air flow 4 Front housing is not sealed to rear housing Compressor runs with POWER button OFF 1 Defective relay 2 Defective control board 4 3 Air Mover The motorized impeller has a PSC moto...

Page 10: ...ndensate hose and the one screw attaching the pump bracket to the rear housing 5 Replace the pump hose wiring bolts and housing in the reverse order 4 6 Float Safety Switch The float safety switch activates when the water rises too high in the condensate reservoir The float safety switch turns off the compressor until the water level lowers and disengages the switch The internal condensate pump re...

Page 11: ...GRN GRN 14 BLK 5 GRN 13 BRN 12 BLK 16 WHT 2 WHT 7 BLK 3 GRN BLU 8 BLK 4 BLK 11 YEL YEL BLU YEL YEL 10 RED 9 WHT 7 BLK GRY WHT 6 CONTROL BOARD RUN CAP FAN MOTOR PUMP SAFETY NO NC FLOAT WHT PUMP FAN LEVEL SWITCH THERMISTOR 1 LINE 2 NEUT 3 COMP RUN CAP PLUG 5 4 C R S COMPRESSOR BLK 15 BLK P N 4031273 REV C Figure 3 Electrical schematic of Quest CDG 74 ...

Page 12: ...mistor Probe 1 4034716 02 10 Capacitor Impeller 6 0 μF 1 4033031 03 11 Hex Bolts 1 4 20 x 1 25 6 1154012 12 Handle Bar 1 4031267 13 Handle Grip 1 4031268 Item Description Qty Part No 14 Wheel 12 Black 2 4026851 15 Cotter Pin 2 1284404 16 Hub Cap Wheel Black 2 4027138 17 Handle Knob Lanyard 2 4033372 18 Control Board 1 4034457 19 Power Cord 25 14ga 1 4037569 Items listed are not shown Item Descript...

Page 13: ...Quest CDG 74 Installation Operation and Maintenance Instructions 1 877 420 1330 13 www QuestHydro com info QuestHydro com ...

Page 14: ...s The end user is responsible for normal care This warranty does not cover any defect malfunction etc resulting from misuse abuse lack of normal care corrosion freezing tampering modification unauthorized or improper repair or installation accident acts of nature or any other cause beyond Therma Stor LLC s reasonable control Limitation and Exclusions If any Quest CDG 74 Dehumidifier part is repair...

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