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QHPR Installation & Operating Instructions

Returns to Manufacturer

If the dryer or a component of the dryer 

must be returned to the manufacturer, 

first call your local distributor for a return 

authorization number and shipping 

address. Your distributor will inform you 

whether the dryer or only a component 

must be returned. Mark the package with 

the return authorization number and ship 

freight prepaid as directed by your local 

distributor.

Field Service Guide

Problems most frequently encountered 

with refrigerated dryers are water 

downstream of the dryer and excessive 

pressure drop. Most causes can be 

identified and remedied by following this 

guide.
Closed refrigeration systems are potentially 

dangerous. Work on the refrigeration 

system must be done only by a competent 

refrigeration mechanic. 

Do not release fluorocarbon refrigerants to 

the atmosphere. All refrigerants must be 

recovered per EPA requirements. 
Do not smoke when a refrigeration leak 

is suspected. Burning materials may 

decompose refrigerants, forming a toxic 

gas or acids that may cause serious injury 

and property damage. 
Before dismantling any part of the dryer or 

compressed air system, completely vent 

the internal pressure to the atmosphere.

 

 

Quincy Compressor-QHPR Series Dryers 

Summary of Contents for QHPR Series

Page 1: ...uction Manual This manual contains important safety information and should be made available to all personnel who operate and or maintain this product Carefully read this manual before attempting to o...

Page 2: ......

Page 3: ...Precautions 2 Receiving Unpacking and Moving 2 Installation 3 Instrumentation 4 Start up Operation 5 Shutdown 5 Maintenance 6 Returns to Manufacturer 7 Field Service Guide 7 Troubleshooting 8 Technica...

Page 4: ......

Page 5: ...urer must first be authorized by the manufacturer Unauthorized service voids the warranty and any resulting charge or subsequent claim will not be paid Products repaired or replaced under warranty sha...

Page 6: ...ons for the requirements for breathing quality air Receiving Unpacking and Moving Receiving This shipment has been thoroughly checked packed and inspected before leaving our plant It was received in g...

Page 7: ...evel Anchor bolts are not required System Arrangement Liquid water in the inlet air will adversely affect the performance of the dryer Install the dryer downstream of an aftercooler or separator so th...

Page 8: ...for the appropriate particulate filter Electrical Connections The dryer is designed to operate on the voltage phase and frequency listed on the serial number tag Reference the tag prior to making an e...

Page 9: ...ation or call your local distributor b Confirm that condensate is discharging from the drain This can only be done when there is air flow through the dryer Reference Serial Number Tag for appropriate...

Page 10: ...enser coils Remove accumulated dust and dirt with a soft brush or with air from an OSHA approved compressed air nozzle that limits the discharge pressure to 30 psig General For continued good performa...

Page 11: ...e water downstream of the dryer and excessive pressure drop Most causes can be identified and remedied by following this guide Closed refrigeration systems are potentially dangerous Work on the refrig...

Page 12: ...ambient temperature Improper adjustment of Expansion Valve Remedy Replace float mechanism Check aftercooler discharge temperature and reduce to dryer design condition 122 F max Consult local distribut...

Page 13: ...ssible causes Dryer undersized may cause water downstream of dryer Blocked separator Dryer freezing up Remedy Check airflow and dryer capacity Reduce airflow or resize and replace dryer Dismantle clea...

Page 14: ...t Typeb R 134A R 134A MINIMUM MAXIMUM OPERATING CONDITIONS Min Max Inlet Air Pressure compressed air at inlet to dryer 30 250 psig 30 250 psig Min Max Inlet Air Temperature compressed air at inlet to...

Page 15: ...TER S M COMP 1PH C OVERLOAD PROTECTOR Air Refrigerant Flow Schematic HEAT EXCHANGER REHEATER AUX CONDENSER AIR OUTLET SEPARATOR EVAPORATOR CHILLER DRAIN OUTLET AIR INLET LIQUID RECEIVER FILTER DRYER R...

Page 16: ...seller freight prepaid for inspection Seller warrants repaired or replaced parts of its own manufacture against defects in materials and workmanship under normal use and service for ninety 90 days or...

Page 17: ...nd storage charges may be applied at the discretion of Seller Accounts past due shall bare interest at the highest rate lawful to contract for but if there is no limit set by law such interest shall b...

Page 18: ...___________________________ __________________________________________________________________________ __________________________________________________________________________ ______________________...

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Page 20: ...2009 Quincy Compressor All Rights Reserved Litho in U S A Dryer Department 724 746 1100 SPXDocument 5003991 E mail info quincycompressor com Website quincycompressor com...

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