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Quest 215 Dual
Quest 506
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.
Features:
Industry-leading efficiency, most efficient on the market
today
Patented, refrigeration system
High-efficiency, long-life impeller fan
Quiet operation
Superior air filtration (MERV-13 standard)
Auto-restart after power outages
Environmentally friendly R410A refrigerant
Low voltage control
Specifications subject to change without notice.
Water Removal Rates (Pints/Day) @ 80°F 60% (AHAM)
Dehumidifier
Pints Removed
Quest 506
506
4201 Lien Rd
Madison, WI 53704
www.QuestHydro.com
1
PATENT PENDING
Gallons/Liters
63.2/239.4
Toll-Free 1-877-420-1330
info@QuestHydro.com
TS-1016
10/17 Rev. A

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Questions and answers

Kristy Prettyman
May 18, 2025

We have a Quest 506 Dehumidifier and the unit is about 10 degrees higher on the unit than our other quest smaller dehumidifier. Is there a way to recalibrate the unit so it is the same humidity level as the other one?

1 comments:
Mr. Anderson
May 23, 2025

To recalibrate the Quest Engineering 506 Dehumidifier to match the humidity level of a smaller Quest dehumidifier, adjust the external remote humidistat connected to the 24V terminal block. The humidistat sends a 24VAC signal to control the fan or fan and compressor. Use the same humidistat settings or type as used with the smaller unit to match humidity control. No internal calibration method is described.

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Summary of Contents for Quest Engineering 506

  • Page 1 Quest 215 Dual Quest 506 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 506 Installation, Operation and Maintenance Instructions Table of Contents Safety Precautions ..............3 1. Intended Application .............4 2. Registrations ................4 3. Specifications ...............4 4. Installation ................ 5 4.1 Location ................ 5 4.2 Electrical Requirements ..........5 4.3 Condensate Removal ........... 5 4.4 Hanging ................
  • Page 3: Safety Precautions

    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 506 Dehumidifier. READ AND SAVE THESE INSTRUCTIONS • The device is designed to be installed INDOORS IN A SPACE THAT IS PROTECTED FROM RAIN AND FLOODING.
  • Page 4: Intended Application

    In order to efficiently control humidity levels, the area in which the dehumidifier is to be operated must be free of water intrusion or excessive fresh (outside) air infiltration. Before installing the Quest 506 Dehumidifier, water intrusion and air infiltration problems should be addressed or noted in calculations.
  • Page 5: Installation

    Installation, Operation and Maintenance Instructions 4. Installation 4.1 Location The Quest 506 Dehumidifier can be installed in a variety of locations to meet the owner’s needs as listed below. In all cases keep the following cautions in mind: • It is designed to be installed INDOORS IN A SPACE THAT IS PROTECTED FROM RAIN AND FLOODING.
  • Page 6: Hanging

    Quest 506 Installation, Operation and Maintenance Instructions 1 - Check ball style trap 2 - 2 1/2” x 3/4” sch40 pvc pipe 1 - 5” x 3/4” sch40 pvc pipe 2 - 90° glue in elbow 3/4” 1 - Barb adapter 4.4 Hanging Diagram...
  • Page 7: Controls

    Installation, Operation and Maintenance Instructions 5. Control Options The Quest 506 Dehumidifier can be controlled by an external remote humidistat through a 24V terminal block. 5.1 Humidity Control A 24VAC signal is sent by the remote humidistat signals the fan or fan and compressor to actuate.
  • Page 8: A Deh 3000R

    Quest 506 Installation, Operation and Maintenance Instructions 5.2A DEH 3000 Control HONEYWELL REMOTE HUMIDISTAT QUEST DEH 3000R CONTROL WIRING DIAGRAM WIRING DIAGRAM FLOAT FLOAT FLOAT FLOAT DHUM DHUM Black (COMPRESSOR (COMPRESSOR AND FAN) AND FAN) COMP FAN 5.2B HONEYWELL Remote Humidistat...
  • Page 9: Standard Air Filter

    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.
  • Page 10: Wiring Diagram

    Quest 506 Installation, Operation and Maintenance Instructions Wiring Diagram of the Quest 506 Dehumidifier COMPRESSOR CORD/INPUT POWER CONTACTOR BLU-26 COMPRESSOR YEL-22 BLK-25 BLK-18 RED-23 WHT-21 BLK-18 4 PIN COMPRESSOR MATE-N-LOK CAPACITOR VIO-27 VIO-28 BLOWER RED-11 WHT-19 BLOWER RELAY BRN-29 BLOWER...
  • Page 11: Service Parts List

    Quest 506 Installation, Operation and Maintenance Instructions Service Parts List Item Part No Description Item Part No Description 4029507 CONTROL,HIGH PRESSURE 4037704-02 COIL,CONDENSER 4029508 CONTROL,LOW PRESSURE 4037707 TXV,3 TON 4029575 RELAY 4037708 FAN,MOTORIZED IMPELLER 4031101 CONTACTOR 4037728 CORD 4031406 TRANSFORMER...
  • Page 12: Warranty

    (but all warranty periods will be extended by the period of time, if any, that the Quest 506 Dehumidifier Dehumidifier is out of service while awaiting covered warranty service).

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