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If the pump fails, this switch opens the compressor control circuit and stops water production before the reservoir

overfows. The Quest 335 Dehumidifer will continue to ventilate or circulate air as normal, but will not dehumidify until

this switch closes.

8. Quest 335 Error Codes

1 RH Sensor

Error

No valid RH reading for ~ 22

seconds
Disregard for terminal control

display “--”

Valid RH reading

Error Code: “E1”
Circulate: 1 minute
Dehumidistat: 15 minutes
Dehu mode: 15 minutes
Repeat
Detected on power board, error

communicated to UI

Out of

Refrigerant

Evaporator doesn’t get at least

5°F below ambient after being

in dehumidification mode for

10 minutes or more

Lock-out for 1 hour
Re-start and see if

evaporator gets cold

again

Error Code: “E3”
Compressor off (during lock-out)
Fan off (during lock-out)
Goes to circulate mode

Normally

Closed (NC)

Float Switch

Tripped

The FLOAT terminals on the

UI are in error state. If it is

open for ~ 6 seconds this alert

will trigger. This should happen

in all states (not just when in

Terminal control)

Float inputs are open

Error code: “E4”
Compressor off, fan off
Use command Set:
Dehu_state:off

5 Evaporator

Sensor Error

Invalid reading (above 200°F

or below -20°F) from the

evaporator sensor for ~ 12

seconds or more

Valid evaporator sensor

reading for ~ 12 seconds

or more

Error code: “E5”
Dehu Mode: 15 minutes
Defrost Mode: 30 Minutes
Repeat

6 Temperature

too High

Either the evaporator or the

ambient sensor is reading

above 120°F

Lock-Out for 1 hour

temperatures drop

below threshold

Error Code: “E6”
Fan off
Compressor off

7 Temperature

too Low

Ambient sensor reading

was under 40°F when the

dehumidifier was either in

dehu or circulate mode: The

unit will enter dehumidistat

mode and stay there for at

least 15 minutes

Temperature rises

above threshold when

the unit exits out of

dehumidistat mode

Error Code: “E7”
Fan off
Compressor off

8 Comm Error Communication from power

board is not being received

Valid communication

received from power

board

Error Code: “E8”
Power board continues to run unit.

UI board would not be able to

make changes to operation until

communication is restored.

Содержание Quest 335

Страница 1: ...of workmanship and function Patent thermastor com patents Features 208V and 230V 60Hz Industry leading efficiency Patented multi coil refrigeration system High efficiency variable speed impeller Quiet operation Superior air filtration MERV 13 standard Auto restart after loss of power Environmentally friendly R410A refrigerant Low voltage external control On Board digital controls Water Removal Rat...

Страница 2: ...umidistat 12 5 1B External Control Options 13 5 2 External Control 14 6 Maintenance 14 6 1 Standard Air Filter 14 6 2 Impeller Fan Oiling 14 7 Service 15 7 1 Warranty 15 7 2 Technical description 15 7 3 Troubleshooting 15 7 4 Refrigerant Charging 17 7 5 Impeller Fan Replacement 17 7 6 Compressor Capacitor Replacement 17 7 6A Checking Compressor Motor Circuits 17 7 6B Replacing Burned Out Compresso...

Страница 3: ...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 qualifed person in ...

Страница 4: ...form to unifed standard UL 60335 2 40 CSA C22 2 60335 2 40 US Patents D570 988 8 069 681 9 052 132 3 Specifcations 80 F 60 RH Unit 4042500 Quest 335 Blower Tested with duct collars on 1000 CFM 0 0 WG 1000 CFM 0 2 WG 1000 CFM 0 4 WG Power Watts 1565 Supply voltage 208V and 230V 1 Phase 60 Hz Current Draw Amps 6 9A 230V 7 9A 208V Energy Factor L kWh 4 4 Operating Temp 56 F 95 F Water Removal Pints D...

Страница 5: ...nterrupter protected circuit is required Install the remote hygrostat in a central area of the structure where it will sense the relative humidity of the structure accurately Do not install the hygrostat where it may not accurately sense the relative humidity such as near HVAC supply registers near exterior doors or near a pool or spa The installer must supply the wiring between the Quest 335 Dehu...

Страница 6: ... pipe An optional condensate pump kit may be installed if a lift is required to dispose of the condensate Optional parts list for information on the kit Follow Diagram Quest 335 H 4 J 2 L 6 75 Vent Place vent after the trap Vent should be open Height of vent should be higher than drain outlet Cap A clean out can be placed before trap but must be sealed with a cap Drain Line Drain line should go in...

Страница 7: ... Quest 335 22 2 16 6 3 8 threaded rod Intake Air Treated Air Parts Needed 4 pieces 3 8 threaded rod not included 4 3 8 threaded jam nuts not included 3 8 Jam Nuts Threaded rods should be engaged no less than 2 into machine ...

Страница 8: ...OULD RESULT IN DEATH SERIOUS BODILY INJURY AND OR PROPERTY DAMAGE ONLY QUALIFIED SERVICE PEOPLE SHOULD SERVICE THIS UNIT Tools Required T25 Torx Driver 11 32 Driver Following all local and national electrical codes and standards route electrical service to the location that the dehumidifer will be installed Remove 7 screws on access panel using T25 Torx driver remove panel 8 ...

Страница 9: ...7 8 hole Disconnect POWER CORD BLACK wire from terminal Disconnect POWER CORD WHITE wire from terminal Use 11 32 driver to remove nut from ground stud and disconnect POWER CORD GREEN wire from ground stud Remove the 2 screws holding the cord retention bracket using T25 Torx driver and remove retention bracket Remove power cord and black bushing Route incoming power service wires through 7 8 hole a...

Страница 10: ...o terminal block as shown Place GREEN jumper wire ring terminal on ground stud and use 11 32 driver to secure nut to stud Attach incoming service LINE 1 wire to BLACK jumper wire with the provided wirenut Attach incoming service LINE 2 wire to WHITE jumper wire with the provided wirenut Attach incoming service GROUND wire to GREEN jumper wire with the provided wirenut 10 ...

Страница 11: ...5 If factory duct kit accessory was purchased follow instructions included with duct kit If owner chooses to have a licensed HVAC contractor fabricate a duct kit please follow the drawing below for safe zones for self tapping screws HATCH AREA REPRESENTS SAFE ZONE FOR FASTENERS 8 1 0 8 1 0 1 0 8 4 8 5 1 0 1 0 9 11 ...

Страница 12: ...e on and the compressor will be of during defrost Filter Reset Filter reset button will light up after the fan has been running for 2 000 hours or if the pressure switch detects excessive pressure build up indicating that the flter must be changed After changing the flter press and hold the flter reset button to reset the 2 000 hour timer Light fashes while button is held Dark Mode Press the Dark ...

Страница 13: ...activate the DEHUM input on the terminal block see section 5 1B This must be activated when an external control is used to control RH When Terminal Control is active the internal RH sensor is disabled 5 1B Quest 335 External Control Options Quest ofers two external control options 4028531 QUEST DEH 3000R CONTROL WIRING DIAGRAM 24VAC DMPR COMP FAN DEHU 24V FAN COM DEH 3000R NOTE 22 ga wire needed f...

Страница 14: ...ng any buttons for 6 seconds or by pressing the FAN button This will disable flter life compensation functionality 6 Maintenance WARNING NOTE Do not operate the unit without the flter or with a less efective flter The heat exchange coils inside the unit could become clogged and require disassembly to clean Filter non compliance invalidates the product warranty 6 1 Standard Air Filter The Quest 335...

Страница 15: ... liquid then passes through a flter drier and capillary tubing which causes 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 fooded condition which means that all the evaporator tubes contain liquid refrigerant during normal operation A fooded evaporator should maintain nearly...

Страница 16: ...or 1 Defrost thermostat loose or defective 2 Low refrigerant charge 3 Dirty air flter s or air fow restricted 4 Excessively restrictive ducting connected to unit No ventilation Ventilation is being called for 1 Loose connection in ventilation control circuit 2 Loose connection in damper power circuit 3 Defective fresh air damper Unit removes some water but not as much as expected 1 Air temperature...

Страница 17: ...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 Refer to the unit nameplate for the correct charge weight and refrigerant type 7 5 Impeller Fan Replacement The motorized impeller fan is a unitary assembly consisting of the motor and impeller fan If defective the complete assembly must be replaced ...

Страница 18: ...ding a hard start kit relay capacitor will provide greater starting torque If this doesn t work the compressor has an internal mechanical defect and must be replaced 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 temp...

Страница 19: ...5 Dehumidifer the hygrostat and the feld control wiring 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 set point It opens when the RH drops 4 to 6 below the set point If the Quest 335 Dehumidifer does not run try turning the humidity control Down using arrow on control pad If it then runs the ...

Страница 20: ...trigger This should happen in all states not just when in Terminal control Float inputs are open Error code E4 Compressor off fan off Use command Set Dehu_state off 5 Evaporator Sensor Error Invalid reading above 200 F or below 20 F from the evaporator sensor for 12 seconds or more Valid evaporator sensor reading for 12 seconds or more Error code E5 Dehu Mode 15 minutes Defrost Mode 30 Minutes Rep...

Страница 21: ... A BLU 3 BLK 5 YEL 12 YEL 11 BLK 8 SERIAL SWITCH PRESSURE SWITCH BLU 1 BLU 2 DISPLAY BOARD WHT 6 WHT 9 YEL 3 GRN 1 RED 2 WHT 10 BLK 4 ORG 4 FILTER AIR PRESSURE SWITCH COMPRESSOR RELAY RED 18 YEL 17 GRY 16 BLU 15 VIO 13 WHT 14 GRN 7 2 POSITION TERMINAL BLOCK 21 ...

Страница 22: ...cket 12 4028459 Pressure Tap 13 4042291 Control Board 14 4042467 Relay Item Part No Qty Description 15 4042505 Block Wiring 16 4041892 Clip Cord Retention 17 4042486 Switch Pressure 18 4022160 Clamp Capacitor 19 4035949 03 Capacitor 20 4042483 Fan Motorized Impeller 21 4036494 Cord Optional Parts List PART NO QTY DESCRIPTION 4022220 1 Pump Kit 110 120V 4028607 1 Supply Duct Kit 4028610 1 Return Du...

Страница 23: ...4 1 3 5 2 6 7 21 9 8 10 11 12 20 19 18 17 16 15 14 13 23 ...

Страница 24: ...oes not cover any defect malfunction etc resulting from misuse abuse lack of normal care corrosion freezing tampering modifcation 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 Dehumidifer part is repaired or replaced the new part shall be warranted for only the remainder...

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