COMPRESSORS HANDBOOK - Refrigeration Club

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COMPRESSORSHANDBOOKFOR EMBRACO EUROPEANON-OFF COMPRESSORS

SCOPE OF THE COMPRESSORS HANDBOOKThis handbook applies to the Embraco on-off compressors produced in Europe (the country of origin isindicated on the compressor label).It is addressed to professional users, refrigeration system manufacturers/installers and maintenancetechnicians and intends to provide instructions/recommendations on the proper use of Embraco compressorsregarding reliability, performance and safety aspects.The information of this Handbook is limited to the Embraco european on-off compressors and to theirinstallation/operation/service. They are not to be considered comprehensive or as a set of information fortraining for technicians that need to be qualified by appropriated training nor to replace the instructionmanual of the final equipments provided by the manufacturers.All the operation on systems, their production, installation use, repairing and disposal must be carried outaccording to all the applicable International and National regulations and standards.DISCLAIMERAll product, product specifications and data are subject to change without notice; thus customer should alwaysverify its latest updates on Embraco website (www.embraco.com), catalogues before relying on them.The information provided herein is correct to the best of Embraco’s knowledge of typical requirements thatare often requested to Embraco’s products. It is the customer’s responsibility, relying solely on its own testingand engineering work, to validate that a particular product with the properties described in Embraco’s productspecification is suitable for use in a particular application. Embraco makes no representation concerning thesuitability of its products for incorporation into or use with customer’s applications.Parameters provided in datasheets and / or specifications may vary in different applications and performanceover time. Therefore Embraco’s statements related to all operating parameters, including typical parameters,cannot be intended to replace the customer’s validation for each application by the customer’s technical experts.Product specifications do not expand or otherwise modify Embraco’s terms and conditions of purchase, includingbut not limited to the warranty expressed therein.Embraco rejects any liability for damages and injures caused by its products and/or the applications they areembedded into being installed or repaired by untrained personnel and/or in discordance with these safetyinstructions.23

GENERAL INDEX6.1.11SAFETY. p. 116.21.1Safety notice. p. 111.2Safety advice. p. 112COMPRESSOR APPLICABLE STANDARDS AND DIRECTIVES. p. 123EMBRACO COMPRESSOR RELEVANT DOCUMENTS. p. 124COMPRESSOR RANGE. p. 134.1Application description. p. 13Table 4.14.2Table 4.24.3Table 4.3Applications. p. 13Starting torque classification . p. 14Electrical motor starting torque classification. p. 14Electrical motor types. p. 14Electrical motor types. p. 154.4Electrical motor voltages and frequencies. p. 16Table 4.4Compressor voltages & frequencies, operating voltage rangeand minimum starting voltage . p. 164.5Electrical components types. p. 17Table 4.54.6Table 4.6Electrical components types. p. 17Compressor cooling types. p. 18Cooling types. p. 185COMPRESSOR NAMEPLATES, MODEL, BILL OF MATERIALCODE,TEST CONDITIONS. p. 195.1Compressor label . p. 19Figure 5.15.25.3Compressor label. p. 19Compressor model code . p. 20Figure 5.2.1EM / NE / NT / NJ model code. p. 20Figure 5.2.2EM model code. p. 20Figure 5.3Compressor Bill of material code. p. 215.4Figure 5.45.5Table 5.5Manufacturing date code. p. 21Date code. p. 21Compressor test condition. p. 22Test condition. p. 22Figure 6.1.1Figure 6.2.1Notes on electrical components assembly . p. 31Electrical box mounting position. p. 31Compressor pin position. p. 32EM / NE / NT / NJ models pin position. p. 326.3Screw clamping torque of supplied components. p. 326.4Screw final tightening. p. 326.5Quick connection (faston). p. 327COMPRESSOR SUPPLY CONDITIONS. p. 337.1Compressor performance. p. 337.2Compressor external views. p. 337.3Electrical insulation. p. 337.4Compressor approvals by Safety Institutes. p. 337.5“IP” degree of protection. p. 34Table 7.5IP Degree. p. 34Figure 7.5.aNT with vertical terminal fence . p. 34Figure 7.5.bNT with horizontal terminal fence. p. 34Figure 7.5.cCSR box – IP34. p. 357.67.7Table 7.7Compressor shell hydrostatic strength. p. 35Dehydration . p. 35Maximum level of residual humidity (H2O mg). p. 357.8Painting . p. 357.9Compressor pressurization . p. 367.10Oil charge. p. 36Table 7.107.11Table 7.117.12Table 7.12Lubricant oils approved for compressors. p. 36Minimum quantity of lubricant inside the compressor . p. 37Minimum quantity of lubricant. p. 37Special versions. p. 37Special external version examples. p. 378COMPRESSOR PACKAGING. p. 388.1Multiple packaging. p. 38Table 8.1.1Pallet packages composition. p. 38Figures 8.1.1. a – f Compressor package type pictures. p. 38Table 8.1.28.2Characteristics of multiple wooden packaging . p. 39Single packaging. p. 39Figure 8.2.1Carton box for single package. p. 39Figure 8.2.2Single compressor palet package. p. 39Table 8.2Characteristics of complete single package. p. 406WIRING DIAGRAMS. p. 228.3Package for electrical components and accessories. p. 406.1Electrical connections. p. 228.4Compressor identification marks. p. 414Figure 6.1.aWiring diagrams key. p. 23Figure 8.4.1Compressor identification label for multiple packaging. p. 41Figure 6.1.bWiring diagrams. p. 24Figure 8.4.2Compressor identification label for single packaging. p. 415

9HANDLING, TRANSPORTING AND STORING. p. 4210.3.3Expansion devices. p. 589.1Handling. p. 4210.3.3aCapillary . p. 589.2Transportation. p. 4210.3.3bThermostatic expansion valve (TXV). p. 589.2.1Shipment by container. p. 4210.3.4Use of liquid separator and crankcase heater. p. 58Load characteristics for 20ft container. p. 4310.3.5Leak control. p. 59Shipments by truck. p. 4410.3.6High pressure control. p. 59Characteristics of load by truck. p. 4410.3.7Compressors with internal pressure relief valve (IPR). p. 59Acceptable compressor positions during transportation . p. 4410.3.8Embraco compressors with oil equalization tube for Gemini (Twin). p. 60Table 9.2.19.2.2Table 9.2.29.3Acceptable compressor position during transportation of finished products . p. 45Figure 10.3.8.1 Gemini compressor with connection port. p. 619.4Acceleration during transport and handling. p. 46Figure 10.3.8.2 Compressor mounting and oil level indication. p. 629.5Compressor storage. p. 46Table 9.310.4Liquid line filter dryer. p. 63Table 9.5.1Compressor multiple package storage - maximum height. p. 46Table 10.4aSuggested filter dryer molecular sieves: 3 Angstrom. p. 63Table 9.5.2Compressor single package storage - maximum height. p. 47Table 10.4bInconvenient caused by humidity in the system. p. 649.6Storage conditions. p. 4710.5Brazing process. p. 6410.6Refrigerant use guide. p. 6510INFORMATION ABOUT CORRECT COMPRESSOR INSTALLATION.p. 4810.6.1Guide line for use of HFCs R134a, R404A and R407C. p. 6510.1Compressor selection. p. 4810.6.1.1HFCs R134a, R404A, R407C general information. p. 6510.1.1Characteristics of the hermetic compressor. p. 4810.1.2Selecting the proper compressor. p. 4810.1.3Recommended guideline for the compressor selection. p. 4910.1.3.1Minimum / maximum evaporating temperature. p. 4910.1.3.2Appropriate cooling capacity. p. 4910.1.3.3Refrigerant type. p. 4910.1.3.4Electric motor starting torque. p. 4910.1.3.5Supply voltages and frequencies. p. 5010.1.3.6Ambient temperature. p. 5010.1.3.7Compressor cooling type. p. 51Table 10.1.3.7 Fan cooler characteristics. p. 51Figure 10.1.3.7 Fan motor position. p. 5210.1.4Noise and vibrations. p. 5210.1.5Maximum continuous current. p. 5310.1.6Overload protector. p. 5310.1.7Electrical supply line and cabinet supply cable. p. 5410.2Compressor unpacking. p. 5410.3System components. p. 5510.3.1Humidity and contaminants. p. 55Table 10.3.1a Soluble, insoluble and solid residuals limits. p. 55Table 10.3.1b Humidity limits. p. 55Table 10.6.1.1 R134a, R404A and R407C characteristics. p. 6510.6.1.2System components compatibility. p. 6610.6.1.3System evacuation . p. 6610.6.1.4Refrigerant charge . p. 6710.6.1.5Embraco compressor max refrigerant charge. p. 68Table 10.6.1.5 Max refrigerant charge admitted in the Embraco compressors. p. 6810.6.1.6Alternative refrigerants. p. 6810.6.1.6aR404A. p. 6810.6.1.6bR134a. p. 6810.6.2Guide for the use of HCs refrigerants R600a and R290. p. 6910.6.2.1HCs R600a and R290 general information. p. 70Table 10.6.2.1 R600a and R290 characteristics. p. 7010.6.2.2R600a and R290 purity. p. 7010.6.2.3Embraco R600a and R290 identification and warning symbols. p. 70Figure 10.6.2.3 Warning symbol. p. 7110.6.2.4Safety warnings. p. 7110.6.2.5System components compatibility. p. 7210.6.2.6Expansion devices. p. 7210.6.2.7Liquid and suction line tubes. p. 7210.6.2.8Evaporators and condensers. p. 7310.6.2.9Water tray. p. 7310.6.2.10Filter dryer. p. 7310.6.2.11System components brazing. p. 7410.3.2Piping basic principles. p. 5610.3.2aEvaporator and condenser. p. 5610.6.2.12System evacuation. p. 7410.3.2bLiquid lines - valid also for close coupled remote system. p. 5610.6.2.13Refrigerant charge. p. 7410.3.2cSuction lines - valid also for close coupled remote system. p. 5710.6.2.14Maximum refrigerant charge. p. 7567

10.6.2.15Leak control. p. 7510.7.Capillary tubes size . p. 7612COMPRESSOR CONTROL PROCEDURES. p. 94Suggested capillary for preliminary selection. p. 7612.1Troubleshooting and service chart . p. 9510.7.1Table 10.7.1a R600a LBP Applications. p. 76Table 12.1Troubleshooting and service chart. p. 96Table 10.7.1b R600a HBP applications . p. 77Table 10.7.1c R134a LBP applications. p. 7713ELECTRIC CIRCUITS CONTROL. p. 9913.1.1Version RSIR - RSCR with PTC starting device. p. 9913.1.2Version RSCR with TSD starting device. p. 10013.1.3Version RSIR with terminal board and current relay starting device p.10113.1.4Version CSIR American version and current relay starting device.p.10213.1.5Version CSIR Terminal board and current relay starting device.p.103Rubber grommets/sleeves dimension. p. 8113.1.6Version CSR/CSIR box with external overload protector.p.104Rubber grommets/sleeves dimensions. p. 8113.1.7Version CSR/CSIR box with internal overload protector.p.105Figure 10.8.2 Rubber grommets and sleeves. p. 8213.1.8Version PSC with internal or external overload protector.p.106Table 10.7.1d R134a HBP Applications. p. 78Table 10.7.1e R290 - R404A - R507A LBP applications. p. 78Table 10.7.1f R290 – R404A – R507A – R407C M/HBP application. p. 7910.8Rubber grommets and sleeves. p. 8010.8.1Rubber grommets assembly. p. 81Figure 10.8.1 Rubber grommets assembling scheme. p. 8110.8.2Table 10.8.210.9Rotolock valves. p. 8313.1.9Version 3-phase internal overload protector.p.10710.9.1Rotolock tightening torques. p. 8313.1.10Version 3-phase internal external overload protector.p.108Recommended tightening torques. p. 8313.2Control procedures.p.109Figure 10.9.1 Rotolock valve types. p. 84Table 10.9.113.2.1Control of electric motor (stator) windings.p.109Valve system position. p. 8413.2.2Control of stator windings ohmic resistance.p.109Figure 10.9.2 Valves position. p. 8413.2.3Control of start and run capacitors.p.10914COMPRESSOR REMOVAL AND REPLACEMENT.p.11014.1Compressor removal and replacement - HFCs models.p.11014.1.1Compressor removal procedure.p.11014.1.2Compressor replacement procedure.p.11214.2Compressor removal and replacement - R600a and R290 models.p.11314.2.1Preventive actions to be adopted.p.11314.2.2Failure diagnosis.p.11414.2.3Compressor removal .p.11410.9.210.10Electric supply. p. 8510.10.1Supply voltage admitted limits. p. 8510.10.2Preliminary selection of fuses. p. 8511RUNNING DATA AND COMPRESSOR CHECKING PROCEDURES. p. 8611.1Minimum compressor temperature . p. 8611.2Maximum temperature of electric motor windings. p. 8611.3Maximum discharge gas temperature. p. 8711.4Maximum discharge gas pressures and temperatures. p. 88Table 11.4Discharge gas maximum pressures/temperature. p. 8811.5Suction gas overheating. p. 8911.6Compressor operating fields. p. 8911.6.1Compressors admitted operating fields. p. 89Figure 14.2.3a HCs refrigerant venting. p. 11514.2.4System washing by OFDN procedure.p.11514.2.5Installing a new compressor.p.11614.2.6System vacuum, charging and sealing .p.116Start conditions. p. 9114.2.7Repaired cabinet verification.p.117Temperature conditions corresponding to balanced14.2.8Retrofitting.p.117and unbalanced pressures. p. 9111.6.2.1Notes on starting pressures. p. 9215COMPRESSOR DISPOSAL. p.11711.6.3Use of transformer to raise the voltage. p. 9216HOW TO RETURN SUPPLIED PRODUCTS TO EMBRACO EUROPE.p.11811.6.4Compressor cycling. p. 9317TESTS ON THE CUSTOMER APPLICATIONS.p.11911.6.5Running time. p. 9311.6.6Hot gas defrost . p. 94Figure 11.6.1 Compressor approved operating fields. p. 9011.6.2Table 11.6.28APPENDIX .p.119DIGITAL TOOLS.p. 1239

ACRONYMS USED IN THE TEXTAB: Alkyl BenzeneIPRV: Internal Pressure Relief ValveANSI: American National Standards InstituteLFL: Lower Flammability LimitASHRAE: American Society of Heating,Refrigerating and Air Conditioning EngineersLRA: Locked Rotor AmpsATEL: Acute-toxicity Exposure LimitLVD: Low Voltage DirectiveAHRI: Air-Conditioning, Heating and RefrigerationInstitute (formerly)MBP: Medium Back PressureATEX: Atmosphères Explosibles (Directive 94/9/EC)CSIR: Capacitive Start - Inductive RunCSR (CSCR): Capacitive Start & Run (CapacitorStart - Capacitor Run)DIN: Deutsches Institut für NormungELCOM: Electrical ComponentEN: European StandardsEPA: Environmental Protection AgencyEx: Mark for ATEX certified electrical equipmentfor explosive atmospheresLST: Low Starting TorqueMD: Machine DirectiveFor details contact Embraco Technical support team.MSDSs: Material Safety Data SheetsOnly qualified/certified and authorized refrigeration technicians are allowed to perform installation andmaintenance of the Embraco compressors; the electrical connections must be made by qualified electricaltechnicians.NS: American National Thread-SpecialOD: Outside DiameterODL: Oxygen Deprivation LimitOLP: Overload ProtectorPED: Pressure Equipment DirectivePTC: Positive Temperature CoefficientREACH: Regulation on Registration, Evaluation,Authorization and Restriction of ChemicalsHCFC: HydroCloroFluoroCarbonTechnicians are strongly advised to follow all the applicable

2 3 SCOPE OF THE COMPRESSORS HANDBOOK This handbook applies to the Embraco on-off compressors produced in Europe (the