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1-866-933-7486 

Quest PowerDry 385D Pro 

Installation, Operation and Maintenance Instructions  

3

www.QuestProtect.com

[email protected]

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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 PowerDry 385D Pro

READ AND SAVE THESE INSTRUCTIONS 

The Quest PowerDry 385D Pro 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:
•  The Quest PowerDry 385D Pro is designed to be installed 

INDOORS ONLY.

•  If used near water, the unit should be plugged into GFCI circuits
•  DO NOT use the Quest PowerDry 385D Pro as a bench or table
•  Avoid discharging the process air directly at people
•  Reactivation outlet air MUST be discharged into a location that 

can tolerate high temperature, moist air.

•  If the reactivation outlet ductwork passes through a cold space, 

the duct must be insulated to prevent condensation from forming 
inside the duct.

The Quest PowerDry 385D Pro supports multi-position operation 
and multiple ducting options.  In EVERY case the Reactivation 
Outlet air MUST be ducted out of the drying space and to a 
location tolerant of high temperature moist air (usually outside).

Summary of Contents for PowerDry 385D Pro

Page 1: ... Instructions 4201 Lien Rd Phone 608 237 8400 Madison WI 53704 Toll Free 1 866 933 7486 www QuestProtect com sales QuestProtect com Read and Save These Instructions Specifications subject to change without notice TS 739 06 14 1 Quest PowerDry 385D Pro Quest PowerDry 385D Pro Low dewpoint operation 115 Pints Day AHAM Wide operating range 22 Amps total power consumption Factory installed 115VAC powe...

Page 2: ...ying 5 2 3 Universal Use Set Up 6 2 4 Location 6 2 5 Electrical Requirements 6 2 6 Control Panel 7 2 6a Power Switch 7 2 6b Pilot Light 7 2 6c Hour Meter 7 2 7 Ducting Connections 7 2 8 Storage and Transportation 8 3 Maintanence 8 3 1 Air Filter Replacement 8 4 Service 8 4 1 Warranty Information 9 5 Wiring Diagram 9 6 Service Parts List 10 Warranty 11 Serial No ____________________________________...

Page 3: ...following cautions in mind The Quest PowerDry 385D Pro is designed to be installed INDOORS ONLY If used near water the unit should be plugged into GFCI circuits DO NOT use the Quest PowerDry 385D Pro as a bench or table Avoid discharging the process air directly at people Reactivation outlet air MUST be discharged into a location that can tolerate high temperature moist air If the reactivation out...

Page 4: ...t optional Reactivation Outlet 6 Flex Duct required Range 10 F to 140 F Warranty 1 Year Parts and Labor Low temperature performance is dependent on reactivation air source Supplying warmer reactivation air will significantly increase water removal Dimensions Unit Shipping Width 24 25 27 5 Height 40 45 5 Depth 21 375 22 Weight 105 Lb 130 Lb Accessories 4026859 6 Metalized Polyester Flex Duct 25 Sta...

Page 5: ...owerful tool capable of removing a great deal of water from most environments Care must be taken to avoid secondary damages of over drying and or unexpected condensation Your Quest PowerDry 385D Pro removes vapor water from the incoming process air stream Fig 1 and transfers it to the outgoing reactivation air stream Fig 2 The reactivation exhaust air is hot and wet Take care to prevent the reacti...

Page 6: ...om walls and other air flow obstructions If the humid area is very large dehumidification can be improved by adding an outlet duct to circulate process air to stagnant areas DO NOT use the Quest PowerDry 385D Pro as a bench or table 2 5 Electrical Requirements When used on a water loss work site ground fault circuit interrupter GFCI outlets are required Your Quest PowerDry 385D Pro requires a tota...

Page 7: ...nections Using excess duct length significantly reduces air flow volume through duct This is true in any application If the job at hand needs a short length of duct cut a section to the appropriate length If air flow is restricted by excess length performance will suffer The same can be said of excess bends in the ducting Three different duct sizes are used on the PowerDry 385D Pro All ducting mat...

Page 8: ...tal position The filter access slot is located on the bottom of the machine Fig 4 Open retainment clip remove old filter and replace with fresh filter The stock filter supplied carries a MERV 7 filtration efficiency rating This filtration prevents plugging the heater or loading the desiccant wheel with foreign matter Operating the unit with a dirty filter will reduce the dehumidifier s capacity an...

Page 9: ...nce 5 Wiring Diagram Figure 5 Electrical schematic of Quest PowerDry 385D Pro LABEL PART NO REV 4035447 A ation duct in place d wheel 1D in place 3A 3B 3C 3D d tearing ructions 2 3C 3D HOUR METER POWERLIGHT PROCESSBLOWER MAIN POWER SWITCH REACT BLOWER WHEELDRIVEMOTOR WIRING BLOCK RELAY1 4 6 0 1 PROCESS CAPACITOR RELAY2 4 6 0 1 REACT CAPACITOR 200 F CUTOUT 140 F CUTOUT BLK BLK BLK BLU BLU BLU BLU B...

Page 10: ...PELLER REACTIVATION AIR 6 4026799 HEATER CORE PHX POWERDRY 385D PRO 7 4026777 TOP COVER DESICCANT 385 8 4026898 THERMAL OVERLOAD CUT OUT SWITCH PROCESS AIR 9 4026830 CAPACITOR RUN 8 MFD DRY REACTIVATION AIR 10 1970010 CONTROL RELAY SPST 110VAC COIL 25AMP CONTACTS 11 4026773 MOTOR DESICCANT WHEEL 12 4026795 BELT DRIVE QUEST DESICCANT 13 4026772 WHEEL DESICCANT 14 4028077 THERMAL OVERLOAD CUT OUT SW...

Page 11: ...freezing tampering modification unauthorized or improper repair or installation accident acts of nature or any other cause beyond Therma Stor LLC reasonable control Limitations and Exclusions If any Quest PowerDry 385D Pro Desiccant 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 pe...

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