Quest Engineering CDG 114 Manual

Installation, Operation and Maintenance InstructionsInstallation, 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.
TS-1040
01/18 Rev. C
1
4201 Lien Rd
Madison, WI 53704 Toll-Free 1-877-420-1330
www.QuestHydro.com [e-mail]
Specifications subject to change without notice.
Quest Dry
50HzQuest CDG 114
50Hz Quest CDG 114:
• Energy Efficiency-
Removes 55 pints at AHAM while
drawing only 3. amps
• Slide out handle
• Internal pump
• MERV-11 pleated filter
• Onboard control panel
Water Removal Rates Per Day @ 26.7°C (80°F) 60% (AHAM)
Dehumidifier Liters Pints/Gallons
Quest CDG 114 55 114/14.5

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 2www.QuestHydro.com
[e-mail]
Table of Contents
Introduction ......................................................................1
Safety Information ..........................................................3
1. Specifications ............................................................ 4
2. Operation .................................................................. 4
2.1 Transporting ......................................................... 4
2.2 Electrical Requirements .....................................5
2.3 Condensate Removal ..........................................5
2.4 Ducting ................................................................5
2.5 Defrost Cycle ......................................................5
2.6 Power Button .......................................................5
2.7 Purge Button ........................................................6
2.8 Hour Meter ..........................................................6
2.9 Hours Button .......................................................6
2.10 Defrost Light ......................................................6
2.11 Bypass Cover .......................................................6
3. Maintenance ...............................................................7
3.1 Air Filter ................................................................7
3.2 Storage and Freeze Protection ...........................7
4. Service .........................................................................7
4.1 Technical Description ..........................................8
4.2 Troubleshooting ...................................................8
4.3 Air Mover ...........................................................10
4.4 Thermistor .........................................................10
4.5 Condensate Pump ..............................................11
4.6 Float Safety Switch ............................................ 11
5. Wiring Diagram ........................................................ 12
6. Service Parts ............................................................. 13
Warranty ........................................................................14

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 3www.QuestHydro.com
[e-mail]
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 CDG 114.
READ AND SAVE THESE INSTRUCTIONS
• Always operate the unit INDOORS ONLY.
• Always operate the unit with a GROUNDED PLUG and a
GROUNDED ELECTRICAL OUTLET. A grounded plug is a
safety feature that reduces the risk of shock or fire.
• Use of a GROUND FAULT INTERRUPTER outlet reduces the
risk of shock or fire.
• Never operate a unit with a damaged power cord. If the power
cord is damaged it must be replaced with a cord of the same
type, amperage rating, and have the appropriate country specific
grounded plug.
• Extension cords must be grounded and able to deliver the
appropriate voltage.
• Always operate the unit on a stable and level surface. Do not use
the unit as a bench or table.
• Never operate the unit in standing water, as this may create a risk
of injury from electrical shock. Do not store outdoors.
• Do not obstruct the air intake and exhaust. Maintain a .3 m (1 ft)
clearance around the air intake and exhaust.
• KEEP CHILDREN AWAY. Do not allow children to play with
or around the unit, it may result in injury. When the unit is
unattended make sure the unit is inaccessible to children.

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 4www.QuestHydro.com
[e-mail]
1. Specifications
U.S. Patent - 7,246,503
2. Operation
Place dehumidifier inside structure, place condensate hose into a drain, or a large water tight container, and turn on. To
decrease drying times, make sure all windows and doors are closed to the outside and seal o the aected wet areas from
unaected areas.
Optimum performance will be observed between the temperatures of 21°C and 35°C.
2.1 Transporting
The Quest CDG 114 features a high impact roto-molded housing with 30cm recessed wheels and a telescoping handle. The
rugged roto-molded housing protects the dehumidifier from damage. The 30cm wheels provide greater maneuverability
and roll over obstacles with ease. The telescoping handle and recessed wheels create a compact dehumidifier for improved
storage and transport. To operate the telescoping handle, pull out the lever to release the lock and lift the handle until it
locks in the up position. Repeat to lock the handle in the down position. More compact storage can be achieved by stacking
4035540-XX Quest CDG 114
Supply voltage: 220-240 VAC -
1 Phase - 50 Hz.
Current Draw (Amps): 3.7
Operating Temp: 1°C (33°F) Min - 40°C (110°F) Max
Water Removal
(Liters/Day):
Eciency (Liters/kWh):
55
2.8
Air Filter: MERV-11 Size: 30 cm x 30 cm x 3 cm
Refrigerant Type:
Refrigerant Amount:
R410A
1lb, 10oz
Duct Options Outlet - 25 cm Lay-Flat
Warranty 3 years
(1st year 100% Parts and Labor)
Dimensions:
Width:
Height:
Length:
Weight:
Unit
51 cm
85 cm
51 cm
47 kg
Power Cord: 20’ Fem IEC 60320-C13
4035540-01 UK Cord
BS 1363 (type G)
4035540-02 AUS Cord
AS 3112 (type I)
4035540-03 EU Cord
CEE 7/7 (type E and F)

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 5www.QuestHydro.com
[e-mail]
the units two high. The wheels of the unit fit in the indentations of the bottom unit to provide stability, see figure 1.
It is recommended the units are properly secured for transport. The Quest CDG 114 must always be upright when
transported by vehicle. It may be tipped onto its handle and back for loading and moving by hand.
2.2 Electrical Requirements
The Quest CDG 114 plugs into a 230V common grounded outlet. It draws 3.7 amps at 26.7ºC, 60% RH. If used in a wet
area, a ground fault interrupter (GFI) is required. If an extension cord is required, it must have a minimum of 18 gauge
conductors if 6m long or less and 16 gauge conductors if greater than 6m long.
The CDG 114 has a short power cord with a universal IEC grounded plug. Each unit is supplied with an IEC 60320 C13
plug and a country specific grounded plug rated for 10A at 250VAC. Attach the two mating IEC plugs together to
convert the power cord to a country specific grounded power cord.
2.3 Condensate Removal
The Quest CDG 114 is equipped with an internal condensate pump to remove the water that is condensed during
dehumidification. This pump allows the condensate to be pumped 4m above the unit with the attached hose. If the
condensate must be pumped more than 4m above the unit, a relay pump must be added. The condensate pump
automatically purges for 20 seconds every eight minutes. Use the PURGE button to empty reservoir. If the condensate
level rises in the reservoir to a critical level a back-up float switch will activate the pump-out for up to 1 minute. If the
water in the reservoir fails to be evacuated, the safety switch will turn o the compressor.
2.4 Ducting
A wire duct collar is supplied to allow 25cm lay-flat duct to be attached to the Quest CDG 114 outlet. Attach ducting to
the wire duct collar by inserting the plastic duct end through the collar center and rolling the duct end outward to overlap
the outside of the collar. The duct and collar may then be quickly attached to the Quest CDG 114 by snapping the collar
over the four plastic exhaust tabs.
If the CDG 114 is located in the unaected area, the intake can be ducted with 30cm flex duct (see accessories in
section 6). Attach the flex duct to the top cover by hooking the spiral wire under the four tabs. Tape the duct to the top
cover for a complete seal.
2.5 Defrost Cycle
If the low side refrigerant temperature drops below the defrost set point, due to excessive frost formation on the
evaporator coil, the thermistor activates the solid-state control and the defrost light. The control sysles the compressor
“o” and “on” by the thermistor temperature measurement. The air mover will continue to run, causing air to flow
through the evaporator coil and melt the ice when the compressor is o. When the air temperature and/or humidity
increases, the evaporator temperature will rise and the thermistor will end the defrost cycle at the defrost set point.
2.6 POWER Button
Press the POWER button to turn the dehumidifier “on” or “o”. When starting the dehumidifier the display will show
the accumulated hours. Press the POWER button again to turn the dehumidifier o. The display will also power o.

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 6www.QuestHydro.com
[e-mail]
2.7 PURGE Button
During normal operation the pump automatically cycles every eight minutes. Press the PURGE button to remove
condensate manually from the reservoir. There are three ways to manually remove water from the reservoir:
1. Press the PURGE button once and the pump will run for 20 seconds
2. Press and hold the PURGE button and the pump will run for up to 30 seconds
3. Press the PURGE button while the dehumidifier is plugged in but powered o and the pump will run for 30 seconds.
Always manually purge the water reservoir before transport or storage. Turn o the power and allow the plugged in
dehumidifier to rest 15 minutes before the final purge.
2.8 Hour Meter
The digital hour meter displays the amount of time the dehumidifier has been turned on to the tenth of an hour. The
hour meter continuously cycles between total machine hours and job hours every 3 seconds. Hours are stored in
memory even when the unit is unplugged. The previous totals will be displayed next time the unit is powered on.
2.9 HOURS Button
Pressing the HOURS button displays the hour meter when the unit is turned o but plugged into power. To reset job
hours, press and hold the HOURS button for 5 seconds when the unit is operating.
2.10 Defrost Light
The DEFROST light turns on when the unit is in defrost cycle and indicates when the compressor is o.
2.11 Bypass Cover
Below 32ºC - When the Quest CDG 114 is used in normal dehumidifier operating temperatures (below 32ºC), the
bypass cover must close the bypass openings, figure 3. This maximizes performance by increasing the amount of air that
is dehumidified across the evaporator. This temperature range is often found during the first 24 hours of a drying job.
Above 32ºC - When the Quest CDG 114 is used in high temperature conditions above 32ºC, reposition the bypass cover
to open the bypass holes, figure 4. This improves dehumidifier eciency by increasing the amount of airflow over the
condenser and lowering the refrigerant pressure. Simultaneously, this slows the airflow across the evaporator allowing the
air temperature to be lowered to the dew point and increases dehumidifier capacity. These higher temperatures are often
found after the first 24 hours.
BypassCover
Bypass Openings
Bypass openings
located under filter
Bypass Cover

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 7www.QuestHydro.com
[e-mail]
3 Maintenance
3.1 Air Filter
The Quest CDG 114 is equipped with a pleated media air filter that must be checked regularly. The standard filter
is a MERV-11 high eciency filter. Operating the unit with a dirty filter will reduce the dehumidifier’s capacity and
eciency and may force the unit into defrost causing the compressor to cycle “o” and “on” unnecessarily. The filter can
generally be vacuumed clean several times before needing replacement. Replacement filters can be ordered from the
manufacturer or purchased locally if available.
IMPORTANT: DO NOT operate the unit without the filter or with a less eective filter as the heat exchanger and coils inside
the unit could become clogged and require disassembly to clean.
3.2 Storage and Freeze Protection
There are two issues to consider when the Quest CDG 114 is stored between uses and both pertain to water trapped in
the unit. The first is biological growth and the second is damage caused by freezing. The eects of the trapped water can
be greatly reduced if precautions are taken to remove as much as possible before storage.
1. Use the pump PURGE button to reduce the water level in the reservoir.
2. Stretch the hose flat to drain it completely. Raise one end above your head and spool hose while draining water out
the other end.
3. To reduce biological growth flush the unit with a bio-fungicide that is approved for use with copper, aluminum and
polyethylene. To flush:
a. Run the hose to a drain.
b. Plug in the unit but do not turn it on.
c. Remove the air filter. Slowly pour a quart of the antimicrobial through the heat exchanger
d. Hold in the pump purge switch to reduce the water level in the reservoir.
e. Flush with water.
4. If the unit will be exposed to freezing temperatures, after purging, pull back the filter and pour 1 cup (8oz) of a
propylene glycol based anti-freeze through the heat exchanger. It will flow down into the pump reservoir. Do NOT
purge the solution out of the unit.
5. Dirty filters should be changed prior to long term storage to prevent biological growth on the filter.
4 Service
WARNING: Servicing the Quest CDG 114 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 qualified service people
should service this unit.
CAUTION: Do not operate unit without the front housing in place.

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 8www.QuestHydro.com
[e-mail]
4.1 Technical Description
The Quest CDG 114 uses a refrigeration system similar to an air
conditioner’s to remove heat and moisture from incoming air and
to 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 about to be discharged from
the unit. The refrigerant liquid then passes through a filter/drier
and 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.
The evaporator operates in a flooded condition, which means
that all the evaporator tubes contain liquid refrigerant during
normal operation. A flooded 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 to repeat the process.
4.2 Troubleshooting
No dehumidification, neither hour meter display nor compressor run and POWER button does not turn ON.
1. Unit unplugged or no power to outlet
2. Defective control board
3. Loose connection in internal wiring
No dehumidification, neither hour meter display nor compressor run with POWER button ON.
1. Defective control board
2. Loose connection in internal wiring
Some dehumidification, air mover runs continuously but compressor only runs sporadically.
1. Unit is in defrost cycle, DEFROST light on
2. Defrost thermistor defective or loose
3. Loose connection in compressor circuit
4. Defective compressor overload
5. Defective compressor
6. Defective relay
7. Upper housing is not sealed to lower housing
Refrigeration system of Quest

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 9www.QuestHydro.com
[e-mail]
No dehumidification, air mover runs but compressor does not.
1. Bad connection in compressor circuit
2. Safety float switch closed, check pump reservoir
3. Defective compressor capacitor
4. Defective compressor overload
5. Defective compressor
6. Defective control board
Air mover does not run. Compressor runs briefly but cycles on and o.
1. Loose connection in blower circuit
2. Obstruction prevents impeller rotation
3. Defective air mover
Unit removes some water but not as much as expected.
1. Air temperature and/or humidity have dropped
2. Humidity meter and/or thermometer used are out of calibration
3. Unit has entered defrost cycle
4. Air filter dirty
5. Defective defrost thermistor
6. Low refrigerant charge
7. Air leak such as loose cover
8. Defective compressor
9. Restrictive exhaust or inlet ducting
Unit runs but does not pump water.
1. Hose kinked or plugged
2. Pump motor defective
3. Pump check valve plugged
4. Bad connection in pump circuit
5. Hose disconnected internally
6. Defective control board (pump phase)

50Hz Quest CDG 114 Installation, Operation and Maintenance Instructions
1-877-420-1330 10 www.QuestHydro.com
[e-mail]
Unit pumps water automatically but not when PURGE button is pushed.
1. Bad connection in PURGE button circuit
2. Defective control board
Evaporator coil frosted continuously, low dehumidifying capacity.
1. Defrost thermistor loose or defective
2. Low refrigerant charge
3. Dirty air filter or restricted air flow
4. Upper housing is not sealed to lower housing
Compressor runs with POWER button OFF.
1. Defective relay
2. Defective control board
3. Upper housing not sealed to tower
4.3 Air Mover
The motorized impeller has a PSC motor and internal thermal overload protection. If defective, the complete assembly must be
replaced.
1. Unplug power cord
2. Remove the four screws attaching the bottom plate to the lower housing
3. Disconnect the impeller leads
4. Remove the four screws holding the impeller to the bottom plate
5. Reassemble the new impeller using the above procedure in reverse
4.4 Thermistor
The defrost thermistor is attached to the refrigerant suction line between the accumulator and the evaporator.
To replace thermistor:
1. Unplug the dehumidifier
2. Remove the front housing
3. Cut cable ties and remove insulation and aluminum tape.
4. Remove control panel
5. Unthread thermistor from control housing grommet
6. Detach thermistor from control board jumper
7. Reassemble thermistor and dehumidifier using the above procedure in reverse
Thermistor attached to the refrigerant
line.