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1-877-420-1330

 

Quest 876 

Installation, Operation and Maintenance Instructions

9

www.QuestClimate.com

[email protected]

6. Maintenance

 

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 876 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 876 

Dehumidifier. 

 

For agriculture, we recommend changing the filter with every grow cycle.

 

 

7. Service 

Servicing the Quest 876 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 876 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.

  

Summary of Contents for 876

Page 1: ...tallation Operation and Maintenance Instructions 4201 Lien Rd Madison WI 53704 Toll Free 1 877 420 1330 www QuestClimate com info QuestClimate com Read and Save These Instructions Specifications subject to change without notice 1 Features Industry leading efficiency Patented refrigeration system High efficiency long life impeller fan Quiet operation Superior air filtration MERV 13 standard Auto re...

Page 2: ...moval 6 4 4 Hanging 6 5 Control Options 7 5 1 Humidity Control 7 5 2 24VAC Wiring 7 5 2A Deh 3000R 8 5 2B Honeywell Remote Humidistat 8 5 2C Daisy Chain 8 6 Maintenance 9 6 1 Standard Air Filter 9 7 Service 9 7 1 Warranty 9 7 2 Technical description 9 8 Ducting Guidelines 10 Wiring Diagram 10 9 Display 10 9 1 User Interface 10 9 2 Settings Change Example 11 9 3 Viewing Active Alarms Alarm Logs 12 ...

Page 3: ...to an outlet that is a GROUND FAULT INTERRUPT protected circuit DO NOT use the device as a bench or table DO NOT place the device directly on structural members Provide vibration isolation in order to minimize operational vibration and or noise A drain pan MUST be placed under the unit if installed above a living area or above an area where water leakage could cause damage Make all electrical conn...

Page 4: ... 2 40 CSA 22 2 60335 2 40 2012 Ed 1 4 US Patent 10 168 058 Patent Pending 7194870 7246503 3 Specifications 80 F 60 RH Unit Quest 876 4037600 CFM 1850 0 0 WG Power Watts 5500 Supply voltage 220 240 VAC 1 Phase 60 Hz Current Draw Amps 24 7 Rated Current Draw Amps 104 F 36 31 5 Minimum Circuit Ampacity MCA 42 5A Maximum Overcurrent Protection MOP 70A Energy Factor L kWh 3 1 Operating Temp 56 F Min 11...

Page 5: ...vice person High Voltage Connections The Quest 876 Dehumidifier must be wired directly to the electrical service The current draw under normal operating conditions is listed in section 3 A ground fault interrupter protected circuit is required Information required for proper electrical service installation and overcurrent protection may be found on the Dehumidifier nameplate The unit power switch ...

Page 6: ...parts list for information on the kit Follow Diagram Level unit within 2 4 4 Hanging Diagram Hanging installation must meet all state and local codes Installation should be done by a qualified agency in accordance with these instructions The qualified service agency installing this high efficiency refrigeration system is responsible for the installation Parts Needed 4 pieces 3 8 threaded rod not i...

Page 7: ...rol Options DEH 3000R Honeywell Humidistat Any 24V signal to Dehumidify Low Voltage Hazard Can cause equipment damage Disconnect power before beginning installation 5 2 24VAC Wiring The terminal block low voltage circuit breaker and power switch are located on the intake side of the unit Turn the power switch to the off position while wiring the unit FLOAT External normally closed dry contact floa...

Page 8: ...AT RAM QUEST DEH 3000R CONTROL WIRING DIAGRAM C FAN R DHUM COMPRESSOR AND FAN FLOAT FLOAT C FAN R DHUM COMPRESSOR AND FAN FLOAT FLOAT HONEYWELL REMOTE HUMIDISTAT WIRING DIAGRAM QUEST DEH 3000R WIRING DIAG Red Black C FAN R DHUM COMPRESSOR AND FAN FLOAT FLOAT C FAN R DHUM COMPRESSOR AND FAN FLOAT FLOAT Unit 1 Unit 2 C FAN R DHUM COMPRESSOR AND FAN FLOAT FLOAT C FAN R DHUM COMPRESSOR AND FAN FLOAT F...

Page 9: ...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 876 Dehumidifier uses...

Page 10: ...d have a minimum of 4 feet from the unit before any turns and maximum of 25 for total run Do not connect with a static pressure greater than 5 wg Contact technical support for additional details 9 Display 9 1 User Interface The main status screen is shown Left side buttons top to bottom Alarm press at any time to check active alarms Prg Bullseye press at any time to access settings and menus Escap...

Page 11: ...s in upper left corner of screen moves to next screen 9 2 Settings Change Example Changing Date Display Format 1 From any screen press the Prg Bullseye key This will prompt for a password 2 Press Enter four times to access the menu Then press Up Down keys until Settings is highlighted 3 Press Enter to enter Settings menu Then press Up Down until Date Time is highlighted 4 Press Enter to select Dat...

Page 12: ...n press the Alarm key If there are active alarms this will display a screen like this 2 Press Up Down to cycle through all active alarms The alarms are arranged in order of their alarm code lowest to highest One screen beyond last active alarm the following screen will be displayed Note that if a fault condition is still present resetting an alarm will have no effect Active alarms will automatical...

Page 13: ...ctive Alarm screen except for a few differences The Alarm Log screen does not display the current operating mode The Alarm Log screen shows both when the alarm was first triggered Event Start and when the fault condition was resolved Event Stop 9 4 Viewing Unit Run Hours 1 From any screen press Escape several times to return to the main status screen Press Up Down until the clock icon is displayed...

Page 14: ...M R FAN C ORG 50 PRESS INLET PROBE EVAP SUCT 1 SUCT 2 TB CAREL J2 CAREL J1 J8 J9 J11 24V SUCTION PRESS SENSOR EVAP THERMISTOR PROBE EVAP THERMISTOR BULB SUCTION THERMISTOR 1 SUCTION THERMISTOR 2 INLET THERMISTOR BULB 1 U1 ORG 16 2 U2 GRN 17 3 U3 BLU 18 4 GND BLK 19 5 U4 VIO 20 6 U5 WHT 21 7 U6 BRN 22 8 GND BLK 23 9 U7 OPEN 10 U8 PNK 25 11 U9 OPEN 12 U10 GRY 24 1 2 3 4 5 6 7 ORG 5 BLU 6 YEL 7 GRN 8...

Page 15: ... 4039606 FAN MOTORIZED IMPELLER 17 4038135 HANDLE POCKET QTY 4 Item Part No Description 1 8 4038136 BEZEL HANDLE QTY 4 19 4039864 WIRE HARNESS NOT SHOWN 20 4038079 LUG GROUND 21 4038219 FOOT RUBBER 1 25 DIA QTY 4 22 4038225 01 BRACKET FOOT RIGHT 23 4038226 01 BRACKET FOOT LEFT 24 4038215 BLOCK WIRING 25 4039948 PLC 26 4038233 FILTER 18x20x2 QTY 2 27 4039862 PRESSURE TRANSDUCER 28 4039932 CPRSR WIR...

Page 16: ...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 LIMITATIONS AND EXCLUSIONS If any Quest 876 Dehumidifier Dehumidifier part is r...

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