Quest Engineering QUEST 335 Programming manual

READ AND SAVE THESE INSTRUCTIONS
FOR A COMPLETE MANUAL, GO TO QUESTCLIMATE.COM/MANUALS
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.
QUICK START INSTRUCTIONS
QUEST
335
QUESTCLIMATE.COM / [phone] TS-1205 05/22 REV B

A. Dehumidifier (1)
B. Feet (4)
C. Drain Hose (1)
D. Drain Adapter (1)
3/4” NPT PVC to 5/8” Hose Barb
E. Rivnut Plugs (4)
A. IF YOU PLACE ON FLOOR:
Attach leveling feet. Place
rivnut plugs over hang kit
holes on top of unit.
B. IF YOU HANG DEHUMIDIFIER:
Using 3/8” threaded rod, attach machine to ceiling.
Place rivnut plugs over leveling feet holes on the
bottom of the unit.
UNPACK BOX REGISTER WARRANTY AT THERMASTOR.COM/REGISTRATION
CHECK THAT YOU HAVE ALL PARTS:
READ ALL REMAINING STEPS AND WARNINGS BEFORE CONTINUING
CHOOSE WHETHER TO PLACE ON FLOOR OR HANG DEHUMIDIFIER
DECIDE WHERE TO PLACE
UNIT IN GROW ROOM
QUEST DEHUMIDIFIERS CAN RUN WITHOUT ADDITIONAL ACCESSORIES. DEPENDING ON INSTALLATION,
YOU MAY REQUIRE ADDITIONAL PARTS. SEE STEP 14 FOR ADDITIONAL INFORMATION.
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BEFORE TURNING ON UNIT:
1. CUT AND REMOVE ZIP TIE
2. PLUG HOLES USING
INCLUDED PLUGS
COM
FAN
24V
DEHU
*
DMPR
COM
FAN
24V
DEHU
*
DMPR
24V AC
COMP FAN
HONEYWELL REMOTE HUMIDISTAT
WIRING DIAGRAM
QUEST DEH 3000R CONTROL
WIRING DIAGRAM
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BEFORE TURNING ON UNIT:
1. CUT AND REMOVE ZIP TIE
2. PLUG HOLES USING
INCLUDED PLUGS
COM
FAN
24V
DEHU
*
DMPR
COM
FAN
24V
DEHU
*
DMPR
24V AC
COMP FAN
HONEYWELL REMOTE HUMIDISTAT
WIRING DIAGRAM
QUEST DEH 3000R CONTROL
WIRING DIAGRAM
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OFFON
BEFORE TURNING ON UNIT:
1. CUT AND REMOVE ZIP TIE
2. PLUG HOLES USING
INCLUDED PLUGS
COM
FAN
24V
DEHU
*
DMPR
COM
FAN
24V
DEHU
*
DMPR
24V AC
COMP FAN
HONEYWELL REMOTE HUMIDISTAT
WIRING DIAGRAM
QUEST DEH 3000R CONTROL
WIRING DIAGRAM
A.
D.
B.
E.
C.
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BEFORE TURNING ON UNIT:
1. CUT AND REMOVE ZIP TIE
2. PLUG HOLES USING
INCLUDED PLUGS
COM
FAN
24V
DEHU
*
DMPR
COM
FAN
24V
DEHU
*
DMPR
24V AC
COMP FAN
HONEYWELL REMOTE HUMIDISTAT
WIRING DIAGRAM
QUEST DEH 3000R CONTROL
WIRING DIAGRAM
ASSEMBLY & INSTALLATION
Thanks for purchasing a Quest 335 dehumidifier. For a complete manual, visit QuestClimate.com/manuals.
Please follow these steps to successfully assemble and install your new dehumidifier.
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BEFORE TURNING ON UNIT:
1. CUT AND REMOVE ZIP TIE
2. PLUG HOLES USING
INCLUDED PLUGS
COM
FAN
24V
DEHU
*
DMPR
COM
FAN
24V
DEHU
*
DMPR
24V AC
COMP FAN
HONEYWELL REMOTE HUMIDISTAT
WIRING DIAGRAM
QUEST DEH 3000R CONTROL
WIRING DIAGRAM
IMPORTANT! RETAIN SHEET OF CARDBOARD
UNDER MACHINE TO PREVENT SCRATCHING.
WARNING! Don’t block airflow inlet. Outlet must be at least 12 inches
from walls and other obstructions.
WARNING! Threaded rods should be engaged no less than 2” into
machine. Thread jam nut at least 2” into the threaded rods, screw
rods into unit until jam nuts touch the top of the unit and tighten.

A. Attach a P-Trap
(Available at most hardware stores. Or follow dimensions
below to construct your own draintrap.)
B. If you need water to
travel a further distance,
see Section 13 on how
to order a pump kit.
C. See manual for more
details.
INSERT DRAIN ADAPTER AND
ATTACH DRAIN HOSE* TO UNIT.
OUTPUT TO DRAIN OR BUCKET.
Parts Needed: 4 pieces 3/8” threaded rod (not included)
4 - 3/8” threaded jam nuts (not included)
22.2
16.6
3/8” threaded rod
Intake Air
Treated Air 3/8” Jam Nuts
7
*You can use provided
hose, or install PVC to
route water.
8

A. Adjust onboard setpoint
to desired setting.
C. To daisy chain, see manual for details.
B. If you prefer external controls, see
section 12, left, on how to order.
PLUG IN UNIT.
VERIFY WALL OUTLET IS CORRECT
VOLTAGE AND AMPERAGE.
ADJUST HUMIDITY.
*
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Specifications @ 80°F/60%RH
UNIT QUEST 335
4042500
QUEST 335 277V
4042600
Blower 900 CFM @ 0.6’WG 900 CFM @ 0.6’WG
Supply Voltage (VAC) 208V and 230V 277V
Current Draw (Amps) 6.9A @ 230V
7.9A @ 208V 6.8A @ 277V
Operating Temperature 56 F - 95 F 56 F - 95 F
Air Filter (MERV-13) Size: 20” x 22” x 2” Size: 20” x 22” x 2”
Weight (lbs) 215 215
Capacity (Pints/Day) 350 350
Efficiency (Pints/kWh) 9.3 8.5
Power Cord
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ACCESSORIES
EXTERNAL CONTROL OPTIONS
A. Replacement Filter: Change filters each grow cycle for maximum performance.
B. Pump Kit: Allows for draining and transferring water when the unit is not hard plumbed or near a drain.
C. Duct Kit: Direct airflow when placing the dehumidifier outside of your grow room.
D. External Control: Ideal for overhead installation or with duct work.
NEED HELP? GIVE US A CALL [phone]
To purchase additional accessories for your system, visit
QuestClimate.com/Product-Category/Accessories/All-Accessories/
NOTE:
The jumper wire between the two “FLOAT” terminals
must stay in place unless a secondary float switch is
wired in.
The jumper wire between “FAN” and “24V COM” is
an extra jumper wire. If continuous fan operation is
desired, you would place this jumper wire between
“FAN” and “24VAC”.
ALARM
FLOAT
FLOAT
ALARM
FAN
DEHUM
24VAC
24V COM
ALARM
ALARM
DEHUM
24VAC
14ga 10’, NEMA 6-15P 14ga 10’, NEMA L7-15P
4028531 4041649
4020175
WARNING! Disconnect machine from source
power when making adjustments to low voltage
controls.

WHO IS COVERED
This warranty extends only to the original end-user of the Quest dehumidifier, and may not be assigned or transferred.
FIRST YEAR WARRANTY
Therma-Stor LLC warrants that for one (1) year the Quest dehumidifier will operate free from any defects in materials and workmanship, or
Therma-Stor LLC will, at its option, repair or replace the defective part(s), free of any charge.
SECOND THROUGH FIFTH YEAR WARRANTY
Therma-Stor LLC further warrants that for a period of five (5) years, the condenser, evaporator and compressor of the Quest dehumidifier will
operate free of any defects in material or workmanship, or Therma-Stor LLC, at its option, will repair or replace the defective part(s), provided
that all labor and transportation charges for the part(s) shall be borne by the end-user.
END-USER RESPONSIBILITIES
Warranty service must be performed by a Servicer authorized by Therma-Stor LLC. If the end-user is unable to locate or obtain warranty
service from an authorized Servicer, he should call Therma-Stor LLC at the above number and ask for the Therma-Stor LLC Service
Department, which will then arrange for covered warranty service. Warranty service will be performed during normal working hours.
The end-user must present proof of purchase (lease) upon request, by use of the warranty card or other reasonable and reliable means. 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.
LIMITATIONS AND EXCLUSIONS
If any Quest dehumidifier part is repaired or replaced, the new part shall be warranted for only the remainder of the original warranty period
applicable thereto (but all warranty periods will be extended by the period of time, if any, that the Quest dehumidifier is out of service while
awaiting covered warranty service).
UPON THE EXPIRATION OF THE WRITTEN WARRANTY APPLICABLE TO THE QUEST DEHUMIDIFIER OR ANY PART THEREOF, ALL OTHER WARRANTIES IMPLIED BY LAW, INCLUDING
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL ALSO EXPIRE. ALL WARRANTIES MADE BY THERMA-STOR LLC ARE SET FORTH HEREIN, AND NO CLAIM MAY
BE MADE AGAINST THERMA-STOR LLC BASED ON ANY ORAL WARRANTY. IN NO EVENT SHALL THERMA-STOR LLC, IN CONNECTION WITH THE SALE, INSTALLATION, USE, REPAIR OR
REPLACEMENT OF ANY QUEST DEHUMIDIFIER OR PART THEREOF BE LIABLE UNDER ANY LEGAL THEORY FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES INCLUDING
WITHOUT LIMITATION WATER DAMAGE (THE END-USER SHOULD TAKE PRECAUTIONS AGAINST SAME), LOST PROFITS, DELAY OR LOSS OF USE OR DAMAGE TO ANY REAL OR
PERSONAL PROPERTY. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, AND SOME DO NOT ALLOW THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO ONE OR BOTH OF THESE LIMITATIONS MAY NOT APPLY TO YOU.
LEGAL RIGHTS
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARRANTOR: THERMA-STOR LLC, 4201 LIEN RD., MADISON, WI 53704 1-800-533-7533
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 the back or 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
• Never operate a unit with a damaged power cord. If the power cord is damaged it must be replaced by the manufacturer, its service agent, or
similarly qualified person in order to avoid a hazard.
• 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 .3 m (1 ft) 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.
QUEST 335 DEHUMIDIFIER
LIMITED WARRANTY