Related Manuals for Copeland YB12K1E
Summary of Contents for Copeland YB12K1E
- Page 1 Application Guidelines Copeland Scroll Compressors ™ for Refrigeration Applications YB12K1E to YB36K1E...
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Page 2: Table Of Contents
About these guidelines ....................1 Safety instructions ..................1 1.1 Icon explanation ....................1 1.2 Saf ety statements....................2 1.3 General instructions .................... 2 Product description ..................3 2.1 Compressor range....................3 2.2 Nomenclature ....................3 2.3 BOM Variation ....................4 2.4 Application range .................... - Page 3 3.16 Suction line accumulator..................16 Electrical connection ..................17 4.1 General recommendations ..................17 4.2 Electrical installation ..................17 4.3 Terminal box.....................19 4.4 Motor insulation....................20 4.5 Motor protection ....................20 4.6 High-potential testing ..................20 Start-up & operation..................21 5.1 Strength-pressure test..................21 5.1.1 Compressor strength-pressure test ............21 5.1.2 System strength-pressure test ..............21 5.2 Compressor tightness test ..................22...
- Page 4 Appendix 1: Tightening torques ................32 DISCLAIMER......................32 AGL_Ref_ST_YBK1E_EN_Rev01...
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Page 6: About These Guidelines
About these guidelines The purpose of these guidelines is to provide guidance in the application of Copeland™ scroll compressors in users’ systems. They are intended to answer the questions raised while designing, assembling and operating a system with these products. -
Page 7: Safety Statements
Safety statements ▪ Refrigerant compressors must be employed only for their intended use. The system has to be labelled according to the applicable standards and legislation. ▪ Only qualified and authorized RACHP (refrigeration, air conditioning and heat pump) personnel are permitted to install, commission and maintain this equipment. ▪... -
Page 8: Product Description
Product description Compressor range These application guidelines cover Copeland scroll compressor models YB*K1E f or medium temperature ref rigeration applications. YB*K1E scroll compressors can be operated with both A1 and A2L ref rigerants. Cooling capacity* (kW) Compressor Motor R404A R407A R407F R448A R449A R407C R513A R134a R450A... -
Page 9: Bom Variation
* Single-phase models are released for use with R454C, R407C and R134a refrigerants only. Table 4: Qualified refrigerants and oil Oil recharge values can be taken from the compressor nameplate or from Copeland Select software available at www.climate.emerson.com/en-gb. NOTE: For systems using A1 refrigerants (R404A, R407A, R407F, R448A, R449A, R407C, R513A, R134a or R450A) the flammable refrigerant sticker is not of application and can be removed from the compressor. -
Page 10: Ped Category And Maximum Allowable Pressure Ps
Internal free Internal free Compressor Low-pressure High-pressure Low-pressure volume volume side side side LP side (litres) HP side (litres) YB12K1E 23.5 bar(g) 38 bar(g) 50 °C YB17K1E 23.5 bar(g) 38 bar(g) 50 °C YB21K1E 23.5 bar(g) 38 bar(g) 50 °C YB24K1E 23.5 bar(g) -
Page 11: Dimensions
Dimensions Figure 2 A ± 3.0 C ± 3.0 Ø F Compressor (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (°) YB12K1E 364.6 338.5 165.8 244.5 69.6 165.8 247.5 252.8 115.5 YB17K1E 387.2 361.1 185.7 264.4 75.3 165.8 247.5 252.8... -
Page 12: Installation
Installation WARNING High pressure! Injury to skin and eyes possible! Be careful when opening connections on a pressurized item. Compressor handling 3.1.1 Transport and storage WARNING Risk of collapse! Personal injuries! Move compressors only with appropriate mechanical or handling equipment according to weight. Keep in the upright position. -
Page 13: Mounting Parts
Mounting parts The compressors are designed to be mounted on vibration absorber grommets. The grommets dampen the start-up surge of the compressor and minimise sound and vibration transmission to the compressor base during operation. The metal sleeve inside is a guide designed to hold the grommet in place. -
Page 14: General Brazing Procedure
3.3.1 General brazing procedure Copeland scroll compressors have copper-plated steel suction and discharge stub tubes. These stub tubes are f ar more robust and less prone to leaks than copper tubes. Due to the different thermal properties of steel and copper, brazing procedures should be carried out in an appropriate manner. -
Page 15: Pressure Safety Controls
Pressure safety controls 3.4.1 High-pressure protection Applicable regulations and standards, for example EN 378-2, shall be followed to apply appropriate control and ensure that the pressure never exceeds the maximum limit. High-pressure protection is required to stop the compressor operating outside the allowable pressure limits. -
Page 16: Crankcase Heater
Compressor model charge limit Height Position (kg) (mm) YB12K1E to YB24K1E 1.54 10 - 40 YB31K1E & YB36K1E 1.93 Table 9: Refrigerant charge limits & crankcase heater position The initial start-up in the field is a very critical moment for any compressor because all load-bearing surf aces are new and require a short break-in period to carry high loads under adverse conditions. -
Page 17: Discharge Gas Temperature Protection
In order to ensure positive compressor protection, discharge gas temperature protection is required f or any application with Copeland brand compressors. The maximum discharge gas temperature is 130 °C f or YB*K1E compressors. -
Page 18: Internal Pressure Relief Valve
Technical data of the discharge line thermostat Voltage 120-240 V AC Maximum amperage 5 A / 240 V Open 134 °C (± 4 K) Operating temperatures Close 106 °C (± 8 K) Wire insulation maximum temperature 150 °C Clips f or tube ø... -
Page 19: Filter Screens
Gas f low through scroll compressors is continuous with relatively low pulsation. External mufflers may not be required on Copeland scroll compressors. Due to system variability, individual tests should be conducted by the system manufacturer to verify acceptable levels of sound and vibration. -
Page 20: Compressor Oil Return, Oil Balancing, Floodback And Oil Dilution Tests
inherently higher starting torque. This phenomenon, like the one described previously, can easily be avoided by using standard line isolation techniques. The sound level of a system is the result of design, quality and application. Scroll compressors sound power levels generally increase with the compressor model capacity and the condition pressure ratio. 3.15 Compressor oil return, oil balancing, floodback and oil dilution tests CAUTION Inadequate lubrication! Bearing and moving parts destruction! Ensure... -
Page 21: Suction Line Accumulator
3.16 Suction line accumulator Due to Copeland scroll’s inherent ability to handle liquid refrigerant, for example in flooded start and def rost cycle operation, an accumulator is not required in most systems. To determine if a suction line accumulator is required, the system designer must check this with an appropriate test scenario. -
Page 22: Electrical Connection
Electrical connection General recommendations The compressor terminal box has a wiring diagram on the inside of its cover. Before connecting the compressor, ensure the supply voltage, the phases and the frequency match the nameplate data. For saf ety reasons, Emerson recommends that the electrical installation be executed in compliance with standard EN 60204-1 and/or other standards and regulations of application. - Page 23 50 µF / 370 V YB17K1E-PFZN 60 µF / 370 V YB21K1E-PFZN 60 µF / 370 V YB24K1E-PFZN Table 11: Run capacitor selection table for single-phase compressors Please also ref er to the Copeland spare parts software available at www.climate.emerson.com/en- gb/tools-resources. AGL_Ref_ST_YBK1E_EN_Rev01...
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Page 24: Terminal Box
Three-phase compressors (TF*) with internal motor protection: Power circuit Control circuit Motor terminal connections Three-phase compressors are connected to the T1, T2 and T3 connections Legend B1 ....System controller K1, K2 ..Contactors B3 ....Discharge gas thermostat Q1..... Main switch F1, F6…F8 Fuses R2 ..... -
Page 25: Motor Insulation
Figure 16: IP54 T-Box and correct electrical installation with cable gland Motor insulation The motor insulation material is class "B" (PFZN/TFMN) within maximum allowable operating temperatures according to IEC 34-1 or DIN 57530. Motor protection Independently from the internal motor protection, fuses must be installed before the compressor. The selection of f uses has to be made according to EN 60269-1 or EN 60204-1 and compressor maximum operating current (MOC). -
Page 26: Start-Up & Operation
It is mandatory to have a crankcase heater installed if the ref rigerant charge exceeds 1.54 kg for compressors YB12K1E to YB24K1E and 1.93 kg f or compressors YB31K1E & YB36K1E. Turn the crankcase heater on 12 hours bef ore starting the compressor. -
Page 27: Compressor Tightness Test
Compressor tightness test WARNING High pressure! Personal injuries! Consider personal safety requirements and ref er to test pressures prior to test. IMPORTANT System contamination! Bearing malfunction! Use only dry inert gases (for example nitrogen) for leak testing. DO NOT USE other industrial gases. The compressor has been leak-pressure tested in the Emerson factory. -
Page 28: Charging Procedure
Charging procedure WARNING Air/A2L refrigerant mixture in a potentially flammable atmosphere! Fire hazard! Only use f illing equipment designed and approved f or use and operation with A2L ref rigerants. Make sure all connections are tight to avoid leakage. Make sure to fill with pure A2L refrigerant. CAUTION Low suction pressure operation! Compressor damage! Do not operate with a restricted suction. -
Page 29: Starting Sound
During the very brief start-up, a clicking sound resulting f rom the initial contacting of the spirals is audible and is normal. Due to the design of the Copeland scroll compressors, the internal compression components always start unloaded even if system pressures are not balanced. In addition, since internal compressor pressures are always balanced at start -up, low voltage starting characteristics are excellent for Copeland scroll compressors. -
Page 30: Minimum Run Time
5.15 Supply frequency and voltage There is no general release of standard Copeland scroll compressors for use with variable speed AC drives. A number of considerations must be taken into account when applying scroll compressors with variable speed, including system design, inverter selection, and operating envelopes at various conditions. -
Page 31: Maintenance & Repair
Maintenance & repair WARNING Conductor cables! Electrical shock hazard! Follow the lockout/tag out procedure and the national regulations before undertaking any maintenance or service work on the system. Use compressor with grounded system only. Screwed electrical connections must be used in all applications. Refer to original equipment wiring diagrams. Electrical connections must be made by qualified electrical personnel. -
Page 32: Qualification Of Workers
Qualification of workers Personnel working on the maintenance, repair and decommissioning of an A2L ref rigerant system shall be adequately trained. Any work procedure affecting safety shall only be executed by qualified and trained personnel in compliance with national or other equivalent certification systems. Examples of such work procedures are: ▪... -
Page 33: Exchanging The Refrigerant
Exchanging the refrigerant WARNING Air/A2L mixture in a potentially flammable atmosphere! Fire hazard! For applications with A2L ref rigerants, air/A2L mixture in the ref rigeration system must be avoided in any case. Make sure that the system is filled with pure A2L ref rigerant. -
Page 34: Compressor Return Procedure
may occur when a scroll compressor is started in a vacuum causing burnout of the internal lead connections. 6.5.3 Compressor return procedure Compressors from systems with A1 refrigerant can be sent back to Emerson for diagnosis with closed connections and the oil f illing inside. However, the ref rigerant should be removed f irst. In addition, the warning sticker with the flammable symbol should be removed so that the compressors are not misdeclared on receipt at the factory. -
Page 35: Oil Additives
f or use in a ref rigeration system. Since POE holds moisture more readily than mineral oil it is more dif ficult to remove it through the use of vacuum. The compressors supplied by Emerson contain oil with low moisture content, which may rise during the system assembling process. Theref ore, it is recommended that a properly sized filter-drier be installed in all POE systems. -
Page 36: Dismantling & Disposal
Application Guidelines and Technical Inf ormation. Performance and technical data: The latest version of Copeland Select software with performance data and technical data is available f rom the webpage www.climate.emerson.com/en-gb. Spare parts and accessories: Visit www.climate.emerson.com/en-gb/tools-resources... - Page 37 Appendix 1: Tightening torques Connection Torque (Nm) 45 - 55 Mounting bolts M8 (grommets for single operation) 13 ± 1 Mounting bolts M8 (hard mounting parts for parallel 27 ± 1 operation) Crankcase heater 2 - 3 Terminal block screw Ground screw DISCLAIMER 1.
- Page 38 The Emerson logo is a trademark and service mark of Emerson Electric Co. Emerson Climate Technologies Inc. is a subsidiary of Emerson Electric Co. Copeland is a registered trademark and Copeland Scroll is a trademark of Emerson Climate Technologies Inc.. All other trademarks are property of their respective owners.
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