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Accurex XRV-25-5I Series, Installation, Operation And Maintenance Manual

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Accurex XRV-25-5I Series Installation, Operation And Maintenance Manual Download Page 32

476370 • Grease Trap, Rev. 2, February 2013 

Copyright 2014 © Greenheck Fan Corporation

32

475597 • XRV, Rev. 10, December 2018 

Copyright 2018 © Accurex, LLC

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Our Commitment

As a result of our commitment to continuous improvement, Accurex reserves the right to change specifications 
without notice.

Product warranties can be found online at accurex.com, either on the specific product page or in the Warranty 
section of the website at Accurex.com/Resources/Warranty.

Our Commitment

P.O. Box 410  Schofield, WI 54476
Phone: 800.333.1400 • Fax: 715.241.6191
Parts: 800.355.5354 • accurex.com

Maintenance Log 

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Summary of Contents for XRV-25-5I Series

Page 1: ...en servicing the unit the internal components may be hot enough to cause pain or injury Allow time for cooling before servicing Only quali ed personnel should install and maintain this system Personne...

Page 2: ...VFD Sequence 13 OA and Recirc Air Damper Sequence 13 Exhaust Fan Only Power 13 Vapor Tight Lights 13 EC Condenser Fans 14 Airflow Monitor 14 Dirty Filter Sensor 15 Microprocessor Control 15 Unoccupie...

Page 3: ...ove any accumulations of dirt water ice or snow and wipe dry before moving to indoor storage To avoid condensation allow cold parts to reach room temperature Leave coverings loose to permit air circul...

Page 4: ...illed water coil Units with packaged DX are shipped fully charged with refrigerant and are ready for operation upon arrival Heating There are three different optional heat sources that can be ordered...

Page 5: ...denser Coils optional Outdoor Air Damper Coils optional Recirculating Damper Main Control Center Furnace Vest Plate and Furnace Control Center optional Outdoor Air Filters Weatherhood Filters metal me...

Page 6: ...ce Optional Electric Heater 4 Electrical 5 Supply Blower 6 Coil 7 Filters Unit Size Nominal tonnage tons Height H Width W Length L Intake A Condensing Section B Nominal weight lbs Outdoor Intake Suppl...

Page 7: ...nit Weights Dimensions section of this manual 3 Unit must be lifted by all lifting lugs provided at top of unit 4 Spreader bars must span the unit to prevent damage to the cabinet by the lift cables 5...

Page 8: ...Shim the curb as required to level Install gasketing on top surface of curb provided by others 3 Install Ductwork Installation of all ducts should be done in accordance with SMACNA and AMCA guidelines...

Page 9: ...There are three penetrations into the cabinet that are required one for high voltage supply wiring one for low voltage control wiring and one for either gas supply or high voltage supply wiring for a...

Page 10: ...aking the weld between coil connection and header 2 Connect the water supply to the bottom connection on the air leaving side and the water return to the top connection on the air entering side Connec...

Page 11: ...ater disconnect and must be compatible with the ratings on the nameplate supply power voltage phase and amperage Consult ANSI NFPA 70 and CSA C22 1 for proper conductor sizing Provide the Opening s fo...

Page 12: ...ontroller Optional Indirect Gas Fired Furnace Note In some models two furnaces are installed to provide greater output When two furnaces are installed they are in parallel and both will operate at the...

Page 13: ...ain room air temp at a desired set point Optional 0 10 VDC by others to VFD Supply fan is modulated by a 0 10 VDC eld provided by others Component Operation Exhaust Fan VFD Sequence Optional Building...

Page 14: ...actual cubic feet per minute CFM or actual liters per second LPS on a 16 character LCD display Two con gurable analog outputs for transmitting outdoor and or exhaust air ow rate outdoor air temperatur...

Page 15: ...or relative humidity sensor the unit can cycle on to maintain unoccupied room set points if there is a call for unoccupied heating cooling or dehumidi cation During the unoccupied mode the supply and...

Page 16: ...ble and is located on the side of the evaporator coil and can be accessed through the coil access panel 13 Evaporative Coil 14 Low Limit Pressure Switch The switch is installed on the suction line and...

Page 17: ...is below 40 F Do not short cycle the compressor Allow 5 minutes between on cycles to prevent compressor damage DX system is charged with refrigerant Start up must be performed by EPA Certified Technic...

Page 18: ...wer supplied to it 24 hours prior to start up If start up is scheduled in 24 hours unlock the disconnect power and energize unit Compressor shipping brackets are removed if provided SPECIAL TOOLS REQU...

Page 19: ...r Air Temperature Deg F Outdoor Air Relative Humidity RH Return Air Temperature Deg F Return Air Relative Humidity RH Compressor 1 Compressor 2 Compressor 3 Compressor 4 L1 Amps Amps Amps Amps L2 Amps...

Page 20: ...vation cannot locate the source of vibration a quali ed technician using vibration analysis equipment should be consulted Generally fan vibration and noise is transmitted to other parts of the buildin...

Page 21: ...unit using the power disconnect s a Recycling of the power resets the manual override values that were set during the calibration Air ow Monitor For additional information on how to navigate through t...

Page 22: ...as a voltage spike occurs the VFD will go into alarm and will not reset until a hard restart is performed See the unit speci c manufacturer s manual supplied with the unit VFDs are located in the mai...

Page 23: ...er motor System static pressure too high Improve ductwork to eliminate losses using good duct practices Blower speed too low Check maximum motor RPM and compare with catalog data Verify that external...

Page 24: ...or reason and repair Replace fuse after correcting problem Low line voltage Check line voltage If more than 10 from compressor marking correcting is necessary Compressor motor protector open Motor the...

Page 25: ...f compressor is hot allow compressor to cool for two hours Recheck for open circuit Improper refrigerant charge Check subcooling Improperly wired Review wiring schematics Loose wiring Check all connec...

Page 26: ...Check subcooling Remove excess refrigerant Non condensable in system Remove non condensable from system Dirty condenser coil Clean condenser coil Condenser fan not running or running backwards Check e...

Page 27: ...back Check thermal expansion valve setting Check for refrigerant overcharge Check crankcase heater operation Reheat ush cycle inadequate Contact factory Not enough cooling or lack of cooling Refriger...

Page 28: ...ebris in the air which can be drawn into the lters and the coils they should be checked more frequently If the system is being used for only a few hours per day the frequency may be reduced Use the ma...

Page 29: ...integral metal grid Two acceptable lter replacements are Aerostat Series 400 or Farr 30 30 Filters upstream of the coil should be checked regularly If the lters are dirty they should be cleaned or re...

Page 30: ...V 45 300 14 8 23 3 38 1 44 1 6 6 6 400 6 6 6 500 14 9 23 6 25 2 57 1 6 6 6 B A C D 500MBH 300 400MBH A B C D 200 300MBH 100 150MBH C A B D C A B D COMBUSTION AIR INLET EXHAUST OUTLET IG FURNACE ACCESS...

Page 31: ...5 12 5S 3550 XRV 25 15I 3775 XRV 25 15D 3775 XRV 25 15S 3775 XRV 45 15I 4100 XRV 45 15D 4100 XRV 45 15S 4100 XRV 45 17 5I 4650 XRV 45 17 5D 4650 XRV 45 17 5S 4650 XRV 45 20I 5300 XRV 45 20D 5300 XRV 4...

Page 32: ...______________________________________ _________________________________________________ Date ___________________Time _____________ AM PM Notes ___________________________________________ ____________...

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