Scroll Installation Instructions
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INSTALLATION INSTRUCTIONS FOR EMBRACO SCROLL REFRIGERATION COMPRESSORS

Use only approved re*-| Manufacturer. For detj tires, explosions. o> • • SCOPE OF THE COMPRESSOR INSTALLATION INSTRUCTIONS These installation instructions applies to Embraco scroll compressors for refrigeration applications. The Country of Origin is indicated on the compressor label. It is addressed to professional, commercial refrigeration system manufacturers/installers and maintenance technicians and intends to provide instructions/recommendations on the proper use of Embraco scroll compressors regarding reliability, performance and safety aspects. The information of this these...

12 MAINTENANCE (COMPRESSOR REMOVAL AND REPLACEMENT) ..p. 53 13 HOW TO RETURN SUPPLIED PRODUCTS TO EMBRACO EUROPE . p. 56 16.4.3 Acceptable compressor positions during transportation ACRONYMS USED IN THE TEXT ATEL: Acute-toxicity Exposure Limit AHRI: Air-Conditioning, Heating and Refrigeration Institute (formerly) CSR (CSCR): Capacitive Start & Run (Capacitor Start - Capacitor Run) DTC: Discharge Temperature Control Valve EN: European Standards GFCI: Ground Fault Circuit Interrupter GWP: Global Warming Potential HFC: HydroFluoroCarbon HFO: HydroFluoroOlefin ID: Internal Diameter IP:...

1.3 SAFETY INSTRUCTIONS Safety statements • Refrigerant compressors must be used only for their intended use. • Only qualified/certified and authorized refrigeration technicians are permitted to perform installation and maintenance of compressors. • Electrical connections must be made by qualified electrical technicians. • All valid standards for installing, servicing, and maintaining of electrical and refrigeration equipment must be observed. • Usage of personal safety equipment is recommended (goggles, gloves, clothing, boots and hard hats) Electrical shock hazard • Turn off power before...

DESIGN FEATURES 2.1 COMPRESSOR TEST CONDITION Table 2.1 Test condition Dynamic valve specially designed for MBP/LBP working conditions - allows high compression ratio reducing compression. Instant shutdown. More efficient for pump down control. 2.2 COMPRESSOR COOLING TYPES Unique design with dual compliance - radial and axial. Effective control of discharge temperature to improve compressor reliability. Specially designed for Mid/Low temperatures compression ratio. Height-thickness ratio to assure strength of involutes. High isentropic efficiency design. 2.0.3 Motor • Designed for higher...

Information printed on compressor label: model, voltage and frequency supply, bill of material. 5. COMPRESSOR NOMENCLATURE5.2.2 VOLTAGE AND FREQUENCY SUPPLY Table 5.2.2 VOLTAGE CODE 5.1 COMPRESSOR MODEL CODE 5.2.3 EXTERNAL EXECUTION Table 5.2.3 In Btu/h at 60 Hz x 1000 ARI conditions E.g. 015=15000 Btu/h 5.2 COMPRESSOR BILL OF MATERIAL CODE EXTERNAL EXECUTION 5.2.4 ELECTRICAL EXECUTION Table 5.2.4 5.2.1 COMPRESSOR SIZE 1 - MBP models for 2-6hp 2 - MBP models for 7-13hp

5.3.1 SERIAL NUMBER CODE 5.2.5 ACCESSORIES EXECUTION Table 5.2.5 EXECUTION CONFIGURATION TYPE Grommets, sleeves, tube plug, DTC valve included for LBP PRODUCTION LINE 5.2.6 PACKAGING EXECUTION Table 5.2.6 EXECUTION Note: See Chapter 15 for detailed information about packaging. 5.3 COMPRESSOR LABEL Figure 5.3 Label Oil type Oil initial charge Maximum Operating Pressures (Low and High Side) Compressor model Bill of Materials code Serial Number Code* Compressor protection Displacement Each compressor model is intended for specific refrigerant and application. Their use in different application...

6.2.1 REFRIGERANTS GENERAL INFORMATION I Usage of different refrigerants can generate abnormal working conditions, excessive pressure in the refrigeration system, damages of the compressor and explosions. All operations related to the use of refrigerants shall be performed only by trained and qualified technicians and in accordance with applicable International and National standards, laws and regulations related to this subject. Users must have available and understand the applicable HFCs Material Safety Data Sheets (MSDSs). When selecting the refrigerant, it is important to measure...

BRAZING I.D. mm MATERIAL S - SUCTION 22.35-22.45 COPPER PLATED STEEL D - DISCHARGE 12.87-12.97 COPPER PLATED STEEL L - LIQUID INJ. 3/8" COPPER PLATED STEEL ROTOLOCK I.D. inches MATERIAL S - SUCTION 1 1/4" 12UNF 2A STEEL 6.4 HERMETIC TERMINAL DIMENSIONS 18

7. TECHNICAL SPECIFICATIONS COMPRESSOR SIZE 2 - 3 HP 3.5 - 4 HP Testing conditions: EN12900 Te -35°C; Tc 40°C; Rg 20°C; No subcooling; Ta 35°C

8.3 SUPPLY VOLTAGES AND FREQUENCIES The compressor must be selected according to the voltage and frequency conditions where the installation will operate in the field. 8.1 AMBIENT TEMPERATURE The ambient temperature surrounding the system strongly influences the compressor working conditions. The system must be designed and tested in order to ensure that the compressor works (at normal and abnormal expected conditions in the field) within its admitted limits (see Chapter 8.4 - Operating envelopes) at the max ambient temperature where the system will be installed. A functional and efficient...

Figure 8.4 OPERATING ENVELOPES Even if the compressor can work in low ambient conditions, the system may require specific design or recommendations to ensure compressor working conditions to remain inside the application envelop. In the low ambient temperature, normally, the cooling load will be lower. To avoid the liquid flood back . during the operation, the expansion device should be designed to maintain the minimum and stable superheat. Short cycle of start/stop should be avoided, see Chapter 8.10 - Compressor On/off cycling. The system should be verified by testing. To prevent the...

Table 8.6 MAXIMUM RECOMMENDED REFRIGERANT CHARGE FOR ALL APPROVED REFRIGERANTS The compressor is safe to start without crankcase heater when the refrigerant charge quantity is less than recommended charge limit (see Table in Chapter 8.6). but nevertheless Embraco recommends usage of the crankcase heater. 8.9 PUMP DOWN RECOMMENDATIONS Refrigeration scroll compressors use a low-leak discharge valve to prevent high pressure backflow into the low side. Typically, this check valve prevents system pressures from equalizing and pump down can be achieved. If short cycling cannot be avoided, using a...