Danfoss PSH051-064-077 Instructions Manual

Danfoss PSH051-064-077 Instructions Manual Manual pdf 1 page image

© Copyright Danfoss | Commercial Compressors | 2014.11FRCC.PI.018.A3.02 - November 2014Danfoss scroll compressorsPSH051-064-077InstructionsInstallation and servicing of the compressor by qualified personnel only. Followthese instructions and sound refrigeration engineering practice relating to installation,commissioning, maintenance and service.1235 4EFCDABA: Model number D: Supply voltage, Starting current & Maximum operating currentB: Serial number E: Housing service pressureC: Refrigerant F: Factory charged lubricant1: Discharge temperature sensor (supplied butneed to be connected)2: Liquid Injection Valve (supplied)3: Liquid Injection Valve connection 1/4” ODF4: Surface Sump Heater (SSH) (supplied)5: Rigid mounting spacer (supplied)The compressor must only be used for itsdesigned purpose(s) and within its scope ofapplication (refer to «operating limits»).Consult Application guidelines and datasheetavailable from cc.danfoss.comUnder all circumstances,the EN378 (or otherapplicable local safetyregulation) requirementsmust be fulfilled.The compressor is delivered under ni-trogen gas pressure (between 0.3 and0.7 bar) and hence cannot be connec-ted as is; refer to the «assembly» sectionfor further details.The compressor must behandled with caution in thevertical position (maximumoffset from the vertical : 15°)Danfoss scroll compressors PSH051-064-077 come equipped with an electronic board OCS (Opera-ting Control System) protecting against phase loss/reversal, motor overheating, high current draw,and giving extra features such as liquid injection, discharge temperature protection, envelopemonitoring, data storage, bus communication and crankcase heater control.A1A3A2OCSSKSLPSCCLegend:Fuses ..........................................................................................F1Compressor contactor .........................................................KMControl relay ...........................................................................KASafety lock out relay.............................................................. KSOptional short cycle timer (3 min) ............................... 180 sHigh pressure safety switch.................................................HPControl device.........................................................................THFused disconnect ...................................................................Q1Compressor motor ................................................................. MThermistor chain.......................................................................SSafety pressure switch ........................................................ LPSControl circuit ........................................................................CCOperating Control System ............................................... OCS-25-20-15-10-50510152025303540455055606570-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50Area1: Continuous running SH 5K to 20KArea 2.1: 31 s maximumArea 2.2: 31 s maximumArea 2.3: 3 min maximumArea 1+2.3+3: Start / Restart mapDischarge pressure warningTC (°C)T0 (°C)2.12.212.331 – IntroductionThese instructions pertain to the PSH scrollcompressors used for heat pump and air-conditioning systems. They provide necessaryinformation regarding safety and proper usageof this product.2 – Handling and storage• Handle the compressor with care. Use thecompressor lifting lugs and use appropriateand safe lifting equipment.• Avoid any shocks to the liquid Injection valveduring handling operations.• Store and transport the compressor in anupright position.• Store the compressor between -35°C and 51°C.• Don’t expose the compressor and thepackaging to rain or corrosive atmosphere.3 – Safety measures before assemblyNever use the compressor in a flammableatmosphere.• The compressor ambient temperature may notexceed 50°C during off-cycle.• Mount the compressor on a horizontal flatsurface with less than 3° slope.• Verify that the power supply corresponds to thecompressor motor characteristics (see nameplate).• When installing PSH, use equipmentspecifically reserved for HFC refrigerants whichwas never used for CFC or HCFC refrigerants.• Use clean and dehydrated refrigeration-gradecopper tubes and silver alloy brazing material.• Use clean and dehydrated system components.• The piping connected to the compressor must beflexible in 3 dimensions to dampen vibrations.4 – Assembly• In parallel assemblies of PSH the compressor

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