Manitowoc QF0400 Service Manual

Also see for QC0700: Installation, use & care manual Service manual Building instructions Technician's handbook

Contents

Manitowoc QF0400 Service Manual Manual pdf 137 page image

Section 7 Refrigeration SystemPart No. 80-1214-3 7-15Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATIONNormal Self-Contained Model ProceduresDo not purge refrigerant to the atmosphere. Capturerefrigerant using recovery equipment. Follow themanufacturer’s recommendations.CONNECTIONSQuick disconnect fittings are recommended to preventaccidental release of refrigerant.1. Suction side of the compressor through the suctionservice valve.2. Discharge side of the compressor through thedischarge service valve.SELF-CONTAINED RECOVERY/EVACUATION1. Place the toggle switch in the OFF position anddisconnect all power.2. Install manifold gauges, charging cylinder/scale, andrecovery unit or two-stage vacuum pump.Recovery/Evacuation Connections3. Perform recovery or evacuation:A. Recovery: Operate the recovery unit as directedby the manufacturer’s instructions.B. Evacuation prior to recharging: Pull the systemdown to 500 microns. Then, allow the pump torun for an additional half hour. Turn off the pumpand perform a standing vacuum leak check.NOTE: Check for leaks using a halide or electronic leakdetector after charging the ice machine.4. Refer to Charging Procedures.Remote Air-Cooled ModelsDo not purge refrigerant to the atmosphere. Capturerefrigerant using recovery equipment. Follow themanufacturer’s recommendations.ImportantManitowoc Ice, Inc. assumes no responsibility forthe use of contaminated refrigerant. Damageresulting from the use of contaminated refrigerant isthe sole responsibility of the servicing company.ImportantReplace the liquid line drier before evacuating andrecharging. Use only a Manitowoc (O.E.M.) liquidline filter drier to prevent voiding the warranty.SV3055BACKSEAT BACKSEATOPENOPENMANIFOLD SETLOW SIDEACCESSVALVEHIGH SIDEACCESSVALVESCALE OPENVACUUMPUMP/RECOVERYUNITImportantManitowoc Ice Inc. assumes no responsibility for theuse of contaminated refrigerant. Damage resultingfrom the use of contaminated refrigerant is the soleresponsibility of the servicing company.Revised 8/2003Downloaded from www.Manualslib.com manuals search engine