Related Manuals for Emerson Copeland YF05K1E
Summary of Contents for Emerson Copeland YF05K1E
- Page 1 Application Guidelines Copeland Scroll Compressors ™ for Refrigeration Applications YF05K1E to YF15K1E...
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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 3.17 DTC valve installation ..................17 3.18 Suction line accumulator..................17 Electrical connection ..................18 4.1 General recommendations ..................18 4.2 Electrical installation ..................18 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...
- Page 4 References ....................31 Appendix 1: Tightening torques ................32 DISCLAIMER......................32 AGL_Ref_ST_YFK1E_EN_Rev01...
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Page 6: About These Guidelines
NOTE: Only dedicated compressors are allowed to be used with flammable refrigerants. Emerson marks all compressors that are qualified for flammable refrigerants with a sticker indicating the usage of such refrigerants. Systems using flammable refrigerants must be executed correctly while observing safety rules, as specified in corresponding safety standards such as, but not limited to EN 378. -
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 YF*K1E for low-temperature ref rigeration applications. YF*K1E scroll compressors can be operated with either A1 or A2L ref rigerants. Cooling capacity* (kW) Displacement Compressor Motor R404A R407A R407F R448A R449A YF05K1E... -
Page 9: Bom Variation
IP54 Without Brazing injection port for liquid injection Table 3: BOM designation Please ref er to the Emerson price list for more details. Application range 2.4.1 Qualified refrigerants and oils IMPORTANT Some ref rigerant blends have a significant temperature glide. It is essential that the glide of the refrigerant blends be carefully considered when adjusting pressure and superheat controls. -
Page 10: Ped Category And Maximum Allowable Pressure Ps
2.4.3 PED category and maximum allowable pressure PS The nameplate of the compressor contains information about the maximum allowable pressure PS, the minimum and maximum allowed temperatures TS, the internal free volume and the fluid groups of the ref rigerants qualified for the compressor model range. Values are given f or the two existing pressure ranges on low- and high-pressure sides. -
Page 11: Dimensions
Dimensions Figure 2: Front view drawing Figure 3: Upper view drawing NOTE: The 7/8" connection in blue colour (see dimension F) is an additional brazing connection for paralleling models (BOM versions GDW and GDZ). A ± 3.0 C ± 3.0 Ø... -
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
If the compressors are mounted in tandem or used in parallel, then the hard mountings (bolt M8) are recommended. The mounting torque should be 27 ± 1 Nm. See Emerson spare parts software for ref erence. Standard mounting parts for YF*K1E – Soft mountings Alternative mounting parts for YF*K1E –... -
Page 14: General Brazing Procedure
When working on a ref rigerant-filled system, make sure to f ollow the safety and working instructions given in Chapter 6 "Maintenance & repair". Only compressor models officially approved by Emerson in the qualified configuration may be used f or parallel applications. For YF*K1E compressors in parallel applications with passive oil management, additional precautions shall be taken before brazing the oil and gas equalization ports. -
Page 15: Pressure Safety Controls
The minimum cut-out setting shall be determined according to the refrigerant and the allowed operation envelope – see Select software at www.climate.emerson.com/en-gb/tools-resources. Protection of A2L refrigerant systems operating below atmospheric pressure... -
Page 16: Crankcase Heater
Caution: Crankcase heaters must be properly grounded! For installation, the manufacturer/installer shall follow the recommendations mentioned below. Assembly instructions ▪ Choose the appropriate model according to compressor size and required wattage. -
Page 17: Discharge Gas Temperature Protection
Figure 7 Figure 8 Figure 9 Figure 10 Electrical connection ▪ Connect the crankcase heater according to the compressor application guidelines. ▪ The crankcase heater must be connected only to its rated voltage. ▪ The metal braid of the heater must be connected to a suitable earthing terminal. ▪... -
Page 18: Discharge Line Thermostat
3.7.2 Discharge line thermostat YF*K1E compressors have no internal discharge gas temperature protection. Therefore, an external discharge line thermostat must be installed. Figure 11: Discharge line thermostat with clamp Technical data of the discharge line thermostat Compressor range YF*K1E Voltage 120-240 V AC Maximum amperage 5 A / 240 V... -
Page 19: Internal Pressure Relief Valve
For the selection of sound reduction material in A2L applications, attention shall be paid to the electrostatic charge of the material, which could be a potential ignition source. The standard Emerson sound shell material is not an ignition source f or A2L ref rigerants (R454C, R455A and R454A). -
Page 20: Sound And Vibration
Systems with multiple compressors (two, three, or more) require additional oil balancing qualif ication between the parallel compressors. A sample compressor equipped with an external oil sight tube can be ordered from Emerson for lab testing. Records of the evaporating temperature and the bottom shell temperature shall be taken with a high sampling rate during the entire oil return or oil balance testing and under all tested conditions. -
Page 21: Liquid Injection
NOTE: All YF*K1E corresponding operating envelopes are based on the use of liquid injection. For technical data and operating envelopes, see Select software at www.climate.emerson.com/en-gb/tools-resources. Liquid injection is achieved by means of a Discharge Temperature Control (DTC) valve. The DTC valve is equipped with a custom bulb profile, which must be installed in the top well of the compressor sensing the temperature closest to the discharge port. -
Page 22: Dtc Valve Installation
To prevent a partial or f ull blockage caused by shavings, foreign bodies, etc at the injection port, a f ilter dryer should be installed in the liquid line before the DTC valve inlet. 3.17 DTC valve installation The valve bulb must be installed in the top cap to adequately control scroll temperatures. Therefore please ensure that the coil spring is properly placed inside the compressor. -
Page 23: Electrical Connection
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 when dealing with A2L mildly flammable refrigerants such as R454C, R455A and R454A. -
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 . -
Page 25: Motor Insulation
Cable glands have an inf luence on the protection class of the terminal box . Emerson strongly recommends using appropriate cable glands according to EN 50262 in order to reach the rated protection class. Examples of correct electrical installations are shown in Figure 19 below. -
Page 26: Start-Up & Operation
DO NOT USE other industrial gases. 5.1.1 Compressor strength-pressure test The compressor has been strength-pressure tested in the Emerson f actory. Theref ore, it is not necessary for the system manufacturer/installer to strength-pressure test the compressor again. Scroll compressors are divided into two pressure zones. The compressor high-side and low-side maximum allowable pressures PS values have to be respected at all times. -
Page 27: Compressor Tightness Test
DO NOT USE other industrial gases. The compressor has been leak-pressure tested in the Emerson factory. All compressors get a f actory holding charge of dry air (about 1 to 2.5 bar, relative pressure). The presence of an intact holding charge serves as a proof of quality against penetrating moisture. -
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
period of time (under one hour) but oil may be lost. Oil loss can be prevented during reverse rotation if the tubing is routed at least 15 cm above the compressor. Af ter sev eral minutes of operation in reverse, the compressor protection system will trip due to high motor temperature. The operator will notice a lack of cooling. -
Page 30: Minimum Run Time
5.13 Minimum run time Emerson recommends a maximum of 10 starts per hour. There is no minimum of f time because scroll compressors start unloaded, even if the system has unbalanced pressures. The most critical consideration is the minimum run time required to return oil to the compressor af ter start -up. -
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
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 filling inside. However, the refrigerant should be removed first. For all systems with A2L ref rigerants, if a compressor has to be returned to the manuf acturer for analysis, the ref rigerant and the oil have to be removed completely. -
Page 35: Oil Additives
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. This will maintain the moisture level in the oil to less than 50 ppm. -
Page 36: Dismantling & Disposal
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/tools-resources/copeland-select-software. Spare parts and accessories: Visit www.climate.emerson.com/en-gb/tools-resources f or an online version of the Emerson spare parts and accessories software. AGL_Ref_ST_YFK1E_EN_Rev01... - Page 37 3. Emerson does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson product remains solely with the purchaser or end user.
- 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.