Quest 876 User Manual
Quest Dry
Quest 215 Dual
Quest 876
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
• 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
US Patent #10,168,058
Patent Pending
#7194870
#7246503
Water Removal Rates (Pints/Day) @ 80°F 60% (AHAM)
Dehumidifier Pints Removed Gallons/Liters
Quest 876 876 109.5/415.2
Specifications subject to change without notice.
4201 Lien Rd
Madison, WI 53704 Toll-Free 1-877-420-1330
www.QuestClimate.com info@QuestClimate.com
1
TS-1118
04/19 Rev. A
Quest 876 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 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
9.4 Viewing Unit Run Hours ............................................. 13
Wiring Diagram ...................................................................... 14
Service Parts List .....................................................................15
Optional Parts List ..................................................................15
Warranty .......................................................................16
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Quest 876 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 876 Dehumidifier.
READ AND SAVE THESE INSTRUCTIONS
• The device is designed to be installed INDOORS IN A SPACE THAT IS
PROTECTED FROM RAIN AND FLOODING.
• Install the unit with space to access side panels for maintenance and
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, spa or water; be certain there is NO chance the unit
could fall into the water, be splashed and that it is plugged into 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 connections in accordance with the current edition of
the NEC ANSI/NFPA 70 and any national and local codes or ordinances
that may apply.
• Do not obstruct the air intake and exhaust. Maintain a 4ft clearance
around the air intake and exhaust.
• This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
• Not intended for use at altitudes over 2000m.
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Quest 876 Installation, Operation and Maintenance Instructions
1. Intended Application for Quest 876 Dehumidifier
The Quest 876 Dehumidifier is designed to operate in temperatures between 56° and 110°F.
In order to eciently 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 876 Dehumidifier, water intrusion and air
infiltration problems should be addressed or noted in calculations.
2. Registrations
The Quest 876 Dehumidifier units conform to unified standards: UL 60335-2-40, 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):
Supply voltage:
Current Draw (Amps):
Rated Current Draw (Amps):
(104°F 36%)
Minimum Circuit Ampacity (MCA):
Maximum Overcurrent Protection (MOP):
Energy Factor (L/kWh):
Operating Temp:
Water Removal (Pints/Day):
Eciency (Pints/kWh):
Air Filter (MERV-13): (2)
Power Cord:
Electrical Knockout Size
Drain Connection:
Refrigerant Type:
Refrigerant Amount:
Dimensions:
Width:
Height:
Length:
Weight:
5500
220-240 VAC -
1 Phase - 60 Hz.
24.7
31.5
42.5A
70A
3.1
56°F Min - 110°F Max
876
6.6
Size: 18" x 20" x 2"
Cord not provided -
Direct wired only
3/4” (1.094” opening)
3/4 Threaded NPT
R410A
6lbs 4oz
Unit Shipping
28.9” 36”
33.8” 40”
44.7” 48”
340 lbs 420 lbs
* requires external control not provided
* requires buck/boost transformer
to run on 208V or 277V
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Quest 876 Installation, Operation and Maintenance Instructions
4. Installation
4.1 Location
The Quest 876 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.
• Install the unit with space to access side panel for maintenance and service. DO NOT INSTALL UNIT WITH
ACCESS PANEL INACCESSIBLE.
• Avoid discharging the air directly at people, or over the water in pool areas.
• Be certain there is NO chance the unit could fall into water.
• DO NOT use the Quest 876 Dehumidifier as a bench or table.
• DO NOT place the Quest 876 Dehumidifier 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 an area where water leakage could
cause damage.
• Do not obstruct the air intake and exhaust. Maintain a 4ft clearance around the air intake and exhaust.
4.2 Electrical Requirements
Electrical shock Hazard: Electrical power must be present for some
tests. These tests should performed by a qualified service 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 is a disconnect switch. Route power and ground wires through the
electrical knockout hole. Electrical input power wiring must comply with all national, state, and local electrical codes.
Make electrical connections according to the wiring diagram provided in this manual and inside the access panel of the
Dehumidifier.
Low Voltage Connections
Install the external control in a central area of the structure where it will sense the relative humidity accurately. Avoid
installing the sensor near HVAC supply registers, near exterior doors, or near pool or spa. The installer must supply the
wiring between the Dehumidifier and the control panel. Be sure to safely route the control wiring to prevent damage
during installaion. Be careful not to cross the wires when connecting the Dehumidifier and the Control.
The controls of the Dehumidifier are powered by a low voltage circuit (24VAC) and must NEVER contact or be
connected to a high voltage circuit. The control terminals are labeled to prevent confusion.
For more information on controls, see section 5.
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