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Quest 215 Dual
Quest 105, 155, 205 and 225 Dual
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, optimized air-to-air heat exchanger
High-efficiency, long-life impeller fan
Quiet operation
Superior air filtration (MERV-11 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
105 Dual
155 Dual
205 Dual
225 Dual
4201 Lien Rd
Madison, WI 53704
www.QuestHydro.com
1
PATENTS:
D570,988
8,069,681
9,052,132
Gallons/Liters
105
13.1/49.7
155
19.4/73.3
205
25.6/97.0
225
28.1/106.5
Toll-Free 1-877-420-1330
info@QuestHydro.com
12/17 Rev. B
TS-999

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Summary of Contents for Quest Engineering 105 Dual

  • Page 1 Auto-restart after power outages • Environmentally friendly R410A refrigerant • Low voltage control Water Removal Rates (Pints/Day) @ 80°F 60% (AHAM) Dehumidifier Pints Removed Gallons/Liters 105 Dual 13.1/49.7 155 Dual 19.4/73.3 205 Dual 25.6/97.0 225 Dual 28.1/106.5 4201 Lien Rd...
  • Page 2: Table Of Contents

    Quest 105/155/205/ 225 Dual 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 ........... 6 4.4 Install Diagram ..............
  • Page 3: Safety Precautions

    Quest 105/155/205/225 Dual 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 Dual Dehumidifier. READ AND SAVE THESE INSTRUCTIONS •...
  • Page 4: Intended Application

    2. Registrations The Quest Dual Dehumidifier units conform to unified standard UL 60335-2-40. 3. Specifications @ 80°F/60% RH Unit: 4032270 105 Dual 4031490 155 Dual 4033060 205 Dual 4035400 225 Dual Power (Watts): 1525...
  • Page 5: Installation

    Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions 4. Installation 4.1 Location The Quest Dual 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: •...
  • Page 6: Condensate Removal

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions CAUTION! For proper drainage, the unit must be mounted so the drain outlet is at least 4” above the floor drain, and must be fully supported under the base. 4.3 Condensate Water Removal Condensate drains by gravity via the drain port.
  • Page 7: Ducting

    Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions 4.5 Ducting 4.5A Supply Duct Kit (P/N 4028607) A factory designed supply duct kit can be purchased to accept 10” ducting to both outlets of the Quest Dual. Contact your dealer or call 1-877-420-1330 to order or go to www.questhydro.com/product-category/accessories. 4.5B Return Duct Kit (P/N 4028610) A factory designed return duct kit can be purchased to accept 12”...
  • Page 8: External Control

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions 5.2 External Control The Quest Dual Dehumidifier is controlled using five terminals. COM = 24volt AC power transformer neutral side (common with white) FAN = Fan control 24V = transformer high side DEHU = Dehumidification (fan and compressor) control DMPR = 24volt AC power transformer neutral side (common with red) * On board dehumidistat must be set to off...
  • Page 9: B Honeywell Remote Humidistat

    Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions 5.2B Honeywell Remote Humidistat 4020175 HONEYWELL REMOTE HUMIDISTAT QUEST DEH 3000R CONTROL WIRING DIAGRAM WIRING DIAGRAM COMP FAN 6. Maintenance WARNING! NOTE: Do not operate the unit without the filter or with a less effective filter. The heat exchange coils inside the unit could become clogged and require disassembly to clean.
  • Page 10: Technical Description

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions 7.2 Technical Description The Quest Dual Dehumidifier uses a refrigeration system similar to an air conditioner's to remove heat and 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.
  • Page 11 Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions Low dehumidification capacity (evaporator is frosted continuously). Dehumidification is being called for 1. Defrost thermostat loose or defective. 2. Low refrigerant charge 3. Dirty air filter(s) or air flow restricted. 4. Excessively restrictive ducting connected to unit. No ventilation.
  • Page 12: Refrigerant Charging

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions 7.4 Refrigerant Charging If the refrigerant charge is lost due to service or a leak, a new charge must be accurately weighed in. If any of the old charge is left in the system, it must be recovered before weighing in the new charge.
  • Page 13: B Replacing Burned Out Compressor

    Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions 7.6B Replacing a Burned Out Compressor The refrigerant and oil mixture in a compressor is chemically very stable under normal operating conditions. However, when an electrical short occurs in the compressor motor, the resulting high temperature arc causes a portion of the refrigerant oil mixture to break down into carbonaceous sludge, a very corrosive acid, and water.
  • Page 14: A Humidity Control

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions 7.7A Humidity Control The humidity control is an adjustable switch that closes when the relative humidity of the air in which it is located rises to the dial set point. It opens when the RH drops 4 to 6% below the set point. If the Quest Dual Dehumidifier does not run, try turning the humidity control clockwise until it reaches the stop and the knob pointer points at “Max Dry”...
  • Page 15: Condensate Pump Kit

    Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions 7.10 Condensate Pump Kit An optional condensate pump kit is available from the factory for use with the Quest Dual Dehumidifier. Condensate is automatically pumped to a remote location when the water level in the pump's reservoir rises to close the float switch. The pump also contains a safety float switch.
  • Page 16: Wiring Diagram

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions Wiring Diagram of the Quest Dual Dehumidifier LINE NEUTRAL BLK (CORD) WHT (CORD) COMP. CAPACITOR COMP. COMP. YEL-6 WHT-22, WHT (CORD) RELAY RED-5, BLU-2 BLK (CORD) BLK-21 BLK-8 RED-5 GRN-10 BLOWER BLU-2 BLK-1 BLOWER...
  • Page 17: Service Parts List

    Quest 105/155/205/225 Dual Installation, Operation and Maintenance Instructions Service Parts List Item Part No Qty Description Item Part No Description 4021475 Air Filter 16x20x2" MERV-11 4036492 (225 Dual) Impeller 4026221 Foot, Leveling, 5/16-18 x 2.25 4033032-05 1 (225 Dual) Capacitor, 4031085-02 1 Condenser Coil Run, 45 MFD, 370V...
  • Page 18: Warranty

    Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions Quest Dual Dehumidifier Limited Warranty WARRANTOR: Therma-Stor LLC 4201 Lien Rd Madison, WI 53704 Telephone: 1-800-533-7533 WHO IS COVERED: This warranty extends only to the original end-user of the Quest Dual Dehumidifier dehumidifier, and may not be assigned or transferred.

This manual is also suitable for:

225 dual155 dual205 dual

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