Quest DRY 180 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 benet from your
Quest Dry 90 indoor air quality system.
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 or spa; be certain there is NO chance
the unit could fall into the water, be splashed and that it is
plugged into a GFI GROUND FAULT INTERRUPT OUTLET.
• DO NOT use the device as a bench or table.
• DO NOT place the device directly on structural members.
• 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
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Quest DRY 180 Installation, Operation and Maintenance Instructions
1. Intended Application for Quest DRY 180
The Quest Dry 180 is designed to be installed overhead, can be placed on a shelf, or set on the oor for
immediate plub and play performance. When extra space is required an optional duct kit is available, which
allows the Quest Dry 180 to be placed outside of the structure or room.
2. Registrations
The Quest Dry 180 conforms to UL STD 474 and CSA Standard C22.2 No.92.
Water Removal Capacity: 90 pints/day @ 80°F, 60% RH
Operating Temp. Range: 33°F min., 110°F max.
Air Flow: 220 CFM
Refrigerant Charge: 1 lb. R410A
Filter Size: 12" X 12" X 1"
Size: 34"L X 14 1/2"W X 19 1/2"H
Unit Weight: 67 lbs.
Shipping Weight: 73 lbs.
4. Unit Assembly
4.1 Installing Feet (Optional)
Included with your Quest Dry 180 are four leveling feet. It is important to level the unit for proper draining.
(See section 5.1.4, Figure 6)
Figure 1: Four leveling feet
Installing Leveling Feet
See Figures 2 and 2a for installing leveling feet.
1. Lay down a protective pad (pillow, blanket, etc.).
2. Carefully turn unit onto side opposite lter opening and drain port.
Figure 2: Insert leveling feet in
locations
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Figure 2a: Screw each leveling
foot in ten revolutions
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Quest DRY 180 Installation, Operation and Maintenance Instructions
3. Align leveling foot shaft with one of the four threaded hole locations as shown in Figure 2.
4. Screw each leveling foot in ten revolutions.
5. Carefully bring unit to upright position.
6. Level unit for proper drainage as described in section 5.1.4 (Figure 6) of this manual.
7. Wait 10 minutes before operating.
CAUTION!
Note: Operating the unit immediately after bringing it to an upright position can possibly damage the
compressor. A short amount of time (10 minutes) is needed to allow the oil to return to it’s reservoir for
lubrication.
4.2 Drain Hose
Take drain hose off of drain port. With scissors, cut one inch off of hose end to eliminate dented area. Place
drain hose end on drain port until fully seated. Refer to Section 5.1.4 regarding proper drainage.
Figure 2a: Drain hose position
5. Installation
5.1 Location
The Quest Dry 180 can be installed in a variety oocations to meet the owner’s needs, but should beinstalled
directly in the area to be dehumidied. Other considerations include:
1. Providing access to a 115 VAC power outlet (8’ power cord is provided).
2. Locating near a oor or other suitable drain (8’ drain hose included).
3. Do not install the Quest Dry 180 with the intake or exhaust of the unit within 1’ of a wall or other
obstruction. Do not place the unit where curtains or debris can be drawn onto the intake and restrict
airow. Do not operate in standing water or place the unit near open water. Refer to Figure 5.
4. The Quest Dry 180 drains via a gravity system. If the unit is placed on an unlevel surface, adjust
leveling feet using a crescent wrench or 7/16” open wrench. Move handle end of wrench from left to
right to lower one foot. Adjust all four feet underneath the unit until level. Failure to level the unit may
result in leakage or improper drainage. See Section 4.2 regarding drain hose installation.
Figure 5: Installing Quest Dry 180 in area with proper clearance.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
5.2 Electrical Requirements
The Quest Dry 180 plugs into a common grounded outlet on a 15-Amp circuit. While operating, it draws less
than 7 amps @ 80°F, 60% RH and less than 6 amps @ 75°F, 50% RH. Use of a ground fault circuit interrupter
(GFCI) protected circuit is recommended. The unit should not be used in areas prone to ooding.
5.3 Condensate (Water) Removal
The Quest Dry 180 drains via a gravity system - it is not able to push condensate (water) uphill. The drain
hose must run at or downhill toward the drain location. Be sure the hose is not kinked or otherwise
restricted so that water can pass through it. Improper hose installation may result in water leakage.
To increase the efciency of the unit, position the hose to create a “trap” as shown in Figure 8. By creating a
trap, it will hold a small amount of water. Position the trap on the hose approximately 12” to 20” away from the
unit. Check hose regularly to ensure it is clear and water is draining properly.
If oor drain is not easily accessible, a condensate pump kit with a 20’ hose is available. Refer to page 5 for
ordering accessories.
6. Operation
6.1 Humidity Control Adjustment
The humidity control is an adjustable switch that turns the dehumidier on and off. It turns on when the
relative humidity of the air in which it is located rises to the dial set point. It turns off when the RH drops 5%
below the set point.
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High Efficiency
Dehumidifier
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Figure 9: The NORMAL setting is recommended
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Quest DRY 180 Installation, Operation and Maintenance Instructions
Approximate Humidity Levels Per Setting
“Drier” 35% to 45% Relative Humidity
“Normal” 45% to 55% Relative Humidity
(Recommended for most applications)
“Humid” 55% to 65% Relative Humidity
The dehumidier will run continuously until the relative humidity (RH) is reduced to the humidity control
dial setting. There is no benet to setting the humidity control to “dry” in rooms under 65°; doing so will
result in long periods of ineffective dehumidier run time.
Quality humidity meters are available from your dealer are recommended to accurately monitor humidity
levels.
Once the dial has been set to the desired level of humidity control, the Quest Dry 180 will maintain the same
percentage of relative humidity regardless of room temperature.
To turn the unit off, position the humidity dial to the far left and set fan control to “auto.”
6.2 Defrost Cycle
An automatic defrost thermostat is attached to the refrigerant tubes inside the unit. It will automatically shut
the compressor off if excessive frost forms on the evaporator coil. The blower will continue to run, causing air
to ow through the evaporator coil and melt the ice. When the ice has melted, the evaporator temperature
will rise and the thermostat will automatically restart the compressor. During this process, cool air may be
coming out of the unit.
6.3 Blower (Fan) Switch
Turning the fan switch “FAN ON” will cause the unit’s internal blower to run continuously, whether the unit
is dehumidifying or not. This function is desirable if the unit is used for air circulation or ltration. Turning the
fan switch to “FAN AUTO” will cause the unit’s internal blower to run only while the unit is dehumidifying.
7. Maintenance
CAUTION!
NOTE: Do not operate the unit without the proper lter or with a less effective lter. The
heat exchange coils inside the unit could become clogged, resulting in a loss of effectiveness and/or efciency and may require disassembly to clean.
7.1 Air Filter
The Quest Dry 180 ships with a standard MERV-11 65% 1” pleated fabric lter and a 1/4” aluminum framed
pre-lter installed. Operating the unit with a dirty or obstructed lter will reduce dehumidier capacity and
efciency and may cause the compressor to cycle on and off unnecessarily.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
7.2 Cleaning and Replacement
Check lters every three to six months. Clean and/or replace when lters are visibly dirty. See cleaning
instructions below.
Replacement lters can be ordered from your dealer or online
at www.Santa-Fe-Filters.com.
The 1/4” washable pre-lter should not to be discarded. Inspect the pre-lter for debris, dirt, or other
obstructions at the same time the 1” pleated fabric lter is checked. Wash the 1/4” pre-lter every time the 1”
pleated fabric lter is replaced. To clean the 1/4” pre-lter, remove lter from the unit, rinse the 1/4” pre-lter
in water with the water owing through the aluminum support mesh side. Refer to Figure 11. Allow the lter
to dry completely before reinstalling. Reinstall the lters per the instructions below or on the tag located on
the 1/4” pre-lter.
Figure 11: Pre-lter rinsed
in water, screen side up.
Figure 12: Filter installation.
CAUTION!
NOTE: Failure to follow lter handling instructions may result in improper function of
the dehumidier and cause premature lter wear.
7.3 Remove Filters
1. Gently remove the 1/4” pre-lter by pulling on the tab attached to the lter.
2. Gently remove the 1” pleated fabric lter by pulling it out of the unit.
7.4 Installing Filters
1. Gently slide 1” pleated lter into lter slot. Do not force. If resistance is felt, check alignment for
obstructions or debris inside the lter housing.
2. Gently slide 1/4” pre-lter to left of 1” pleated lter. Do not force. If resistance is felt, check alignment
for obstructions or debris inside the lter housing.
8. Service
WARNING!
Servicing the Quest Dry 180 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 qualied service people should service this unit. 7.4 Installing Filters
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Quest DRY 180 Installation, Operation and Maintenance Instructions
8.1 Technical Description
The Quest Dry 180 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. The refrigerant is cooled and condensed by giving up its heat to the air
that is discharged from the dehumidier. The refrigerant liquid then passes through capillary tubing which
cause the refrigerant pressure and temperature to drop. It next enters the evaporator coil where it absorbs heat
from the incoming air and evaporates.
Figure 13: Quest Dry 180 refrigeration system.
The evaporator operates in a ooded condition, which means that all the evaporator tubes contain liquid
refrigerant during normal operation. A ooded evaporator should maintain constant pressure and temperature
across the entire coil, from inlet to outlet. The mixture of gas and liquid refrigerant enter the accumulator after
leaving the evaporator coil. The accumulator prevents any liquid refrigerant from reaching the compressor. The
compressor evacuates the cool refrigerant gas from the accumulator and compresses it to a high pressure and
temperature gas to repeat the process.
Figure 14: Wiring Diagram.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
8.2 Troubleshooting
No dehumidication. Neither blower, nor compressor run with fan switch AUTO.
1. Unit unplugged or no power to outlet, circuit breaker tripped.
2. Humidity control set to “Humid” setting.
3. Loose connection in internal wiring.
4. Humidity control is defective.
No dehumidication. Compressor does not run but blower runs with fan switch AUTO and humidity control
turned to ON.
1. Defrost thermostat open, ambient temperature too low.
2. Loose connection in compressor circuit.
3. Defective compressor overload.
4. Defective compressor or compressor run capacitor.
Blower runs with fan switch AUTO but compressor cycles on & off.
1. Low ambient temperature and/or humidity causing unit to cycle through defrost mode.
2. Defrost thermostat defective.
3. Defective compressor overload.
4. Defective compressor.
Blower does not run with fan switch in either position. Compressor runs briey but cycles on and off.
For more information on the Quest Dry 180, call 1--877-420-1330 or visit
our website at www.QuestHYDRO.com
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Quest DRY 180 Installation, Operation and Maintenance Instructions
Quest Dry 180 Condensate Pump Installation
Pump Kit
Part No. 4025845
Parts Included:
3
/8" x 20 ft hose
Condensate Pump Bracket
Condensate Pump
assembled to bracket
Tools Required: 5/16" Hex driver
Tools Required: Phillips Screwdriver
CAUTION! Before installing pump kit, disconnect dehumidier from
electrical power and disconnect drain hose if previously installed.
Note: The (2) white wires located at the top of the condensate pump are overow safety trip wires (optional). These
wires are not live or hot wires until connected to the dehumidier or another automatic cut off device. Only a certied electrician is qualied to connect the safety trip wires to your Therma-Stor dehumidier. Attaching the overow
safety trip wires to your Therma-Stor dehumidier will cut power to the dehumidier if the pump motor should fail
and the secondary oat switch trips (this process is optional and not necessary on every install). You may also use
other low voltage (24 volt) cut off devices that do not involve an electrician. Please contact Therma-Stor if you have
any additional questions.
Note: Before attaching pump assembly, ensure that the dehumidier has leveling feet installed on the bottom of the
unit.
Step 2. Remove middle top cover screw located on
the drain port side. Do not discard this screw. It will be
Step 1. Make sure leveling feet are installed.
used to attach the mounting bracket in the next step.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
Quest Dry 180 Condensate Pump Installation
Step 3. Align mounting bracket of condensate
pump with the dehumidier screw hole. Reinstall
screw that was removed in step 2.
Step 4. Remove the 7" hose from the plastic bag
and install this hose from the condensate pump
onto the adaptor as indicated. Make sure that the
hose fully covers the adaptor barbs on the unit.
Step 5. Attach the 20' drain hose to the
condensate pump and route it to a oor drain.
Note: Do not exceed 10 feet vertically when
pumping to a drain above the unit.
Step 6. Plug the pump and dehumidier cords
into an outlet that is protected with a GFCI
device on its circuit.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
Quest Dry 180 Duct Kit Assembly
Duct Kit
Part No. 4026055
C
B
A
D
Parts Included:
A. Pan Head Screws, 10-16 x 1/2" (8)
B. 8" Duct Collars (2)
C. Top Duct Assembly (1)
D. Front Duct Assembly (1)
Tools Required: Cordless Drill with Phillips Head
CAUTION! Do not drill any pilot holes into the plastic housing. You may damage the
internal components. When installing screws, be careful not to strip. Lightly tighten screws.
ATTACHING COLLARS
Step 1. Position collar on a at surface with tabs up.
Step 3. Press down rmly on the sheet
metal plenum. Lock the collar in position by
bending the collar tabs outwards and atten.
Step 2. Position collar into large hole of
front duct assembly. Press rmly so that
tabs of collar go through the plenum hole.
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Step 4. Flatten all collar tabs to secure.
Repeat steps 1 – 4 for top duct assembly.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
Quest Dry 180 Duct Kit Assembly Continued
FRONT DUCT ASSEMBLY
Step 1. Check sealing foam on the front duct
assembly. Ensure that none has come loose.
Step 2. Place front duct assembly on the intake side
of the dehumidier.
Step 3. Center the front duct assembly. Ensure the
sealing foam makes contact around the plastic intake
grill surface. Sealing foam should not cover any of
the inlet portion of the intake grill.
Step 4. DO NOT DRILL PILOT HOLES FOR
SCREWS. You will risk possibly damaging the
internal components. Using the through holes
provided in the front duct assembly, screw in the
four 10-16 X 1/2 screws directly into the plastic
housing (see Figure 1 — screws indicated in white
circle). Be careful not to strip loose. Lightly tighten
screws. Do this in all four through hole locations.
FIGURE 1
TOP DUCT ASSEMBLY
Step 1. Check sealing foam on the top duct
assembly. Ensure none has come loose.
Step 2. Place top duct assembly, ensure the sealing
foam makes contact around the plastic surfaces.
Step 3. Center the top duct assembly, ensure the
sealing foam makes contact around the plastic
surfaces.
Step 4. Ensure the rear ange of the top duct
assembly is seated ush against the back of the
plastic housing. See Figure 2.
Step 5. DO NOT DRILL PILOT HOES FOR
SCREWS. You will risk possibly damaging the
internal components. Using the through holes
provided in the top duct assembly, secure back
ange of the top duct assembly rst. Drive two 1016 X 1/2 screws directly into the plastic housing.
After the back ange has been secured, drive in the
last two screws (located on the top) into the plastic
housing using the same procedure.
FIGURE 2
Step 6. Start unit and check for any air leaks around
the perimeter of the ducts.
Step 7. If any leaks are found, seal leak with foil
tape.
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Quest DRY 180 Installation, Operation and Maintenance Instructions
Quest DRY 180 Installation, Operation and Maintenance Instructions
Quest DRY 180 Dehumidier 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 Dry 180 dehumidier,
and may not be assigned or transferred.
FIRST YEAR WARRANTY: Therma-Stor LLC warrants that, for one (1) year the Quest Dry 180 dehumidier
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 ve
(5) years, the condenser, evaporator, and compressor of the Quest Dry 180 dehumidier 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 ThermaStor 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 only applies to
residential applications and does not cover any defect, malfunction, etc. resulting from misuse, abuse, lack
of normal care, corrosion, freezing, tampering, modication, 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 Dry 180 Dehumidier 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 Dry 180 Dehumidier is out
of service while awaiting covered warranty service).
UPON THE EXPIRATION OF THE WRITTEN WARRANTY APPLICABLE TO THE Quest Dry 180
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
Dry 180 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 limitation may not
apply to you.
LEGAL RIGHTS: This warranty gives you specic legal rights, and you may also have other rights which vary
from state to state.
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