Related Manuals for Emerson Copeland Scroll YH04K1E
Summary of Contents for Emerson Copeland Scroll YH04K1E
- Page 1 Application Guidelines Copeland Scroll Compressors ™ for Heat Pump Applications YH04K1E to YH16K1E...
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Page 2: Table Of Contents
About these guidelines ....................1 Safety instructions .................... 1 1.1 Icon explanation ......................... 1 1.2 Safety statements ......................2 1.3 General instructions ......................2 Product description ..................3 2.1 General information about Copeland Scroll™ compressors ..........3 2.2 Nomenclature ........................3 2.3 BOM Variations ........................ - Page 3 3.15 Suction line accumulator ....................16 Electrical connection ..................17 4.1 General recommendations....................17 4.2 Electrical installation ......................17 4.2.1 Wiring diagrams ....................18 4.2.2 Terminal box ......................18 4.3 Motor insulation ........................ 19 4.4 Motor protection ....................... 19 4.5 High potential testing ....................... 19 Start-up &...
- Page 4 References ....................... 33 DISCLAIMER ....................... 33 AGL_HP_ST_YHK1E_E_Rev02...
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Page 6: About These Guidelines
Low Voltage Directive LVD 2014/35/EU. They may be put to service only if they have been installed in systems according to instructions and conform to the corresponding provisions of legislation. NOTE: Emerson marks all compressors that are qualified for A2L refrigerants with a sticker indicating the usage of flammable refrigerants. Systems using such refrigerants must comply with any and all applicable legislation and regulations 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 personnel are permitted to install, commission and maintain this equipment. Only competent personnel (as specified in EN 13313) qualified for flammable refrigerant handling is permitted to commission, initiate and maintain the compressor/refrigeration systems;... -
Page 8: Product Description
YH*K1E compressor models are available in the following BOM versions: Suction and discharge Mounting T-Box Features connections parts Single compressor Brazing stub tubes IP54 Without Extra tube for paralleling Table 2: BOM designation Please refer to the Emerson price list for more details. AGL_HP_ST_YHK1E_E_Rev02... -
Page 9: Application Range
5 K is required. For application envelopes and technical data, please refer to Copeland brand products Select software available at www.climate.emerson.com/en-gb. 2.4.3 PED category and maximum allowable pressure PS The YH*K1E compressor models covered in these guidelines are PED Class II, according to the Pressure Equipment Directive PED 2014/68/EU. -
Page 10: Dimensions
Dimensions 2.5.1 Dimensions YH04K1E to YH09K1E Figure 2 A ± 3.0 C ± 3.0 Ø G Compressor (mm) (mm) (mm) (mm) (mm) (inch) YH04K1E 364.6 338.5 165.8 244.5 69.6 YH06K1E 387.2 361.1 185.7 264.4 3/4" YH07K1E 400.9 374.9 198.4 277.1 75.3 YH09K1E 391.9... -
Page 11: Dimensions Yh11K1E To Yh16K1E
2.5.2 Dimensions YH11K1E to YH16K1E Figure 3 Ø A Compressor (inch) (mm) YH11K1E & YH13K1E 1/2" 124.7 YH16K1E 3/4" 131.0 YH11K1E & YH13K1E 3/4" 124.7 paralleling-ready YH16K1E paralleling-ready 3/4" 131.0 Table 6: Dimensions for compressor models YH11K1E to YH16K1E NOTE: The connection in blue colour is an additional connection for paralleling models. AGL_HP_ST_YHK1E_E_Rev02... -
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 reference. Standard mounting parts for YH*K1E – Soft mountings Alternative mounting parts for YH*K1E –... -
Page 14: General Brazing Procedure
When working on a refrigerant-filled system, make sure to follow 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 for parallel applications. For YH*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
To prevent the pressure from falling below atmospheric pressure, Emerson requires that YH*K1E compressors be fitted with a low-pressure control, with no service valve between the low-pressure side and the pressure control. - Page 16 This will prevent oil dilution and bearing stress on initial start-up. The crankcase heater must remain energized during compressor off cycles. NOTE: Please refer to the Spare Parts list available at www.climate.emerson.com/en-gb/tools- resources to select the correct crankcase heater model. Caution: Crankcase heaters must be properly grounded! For installation, the manufacturer/installer shall follow the recommendations mentioned below.
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Page 17: Discharge Gas Temperature Protection
Discharge gas temperature protection IMPORTANT Inadequate lubrication! Scroll set damage! All YH*K1E compressors must be equipped with a discharge gas temperature protection. A good system control shall prevent the system from operating outside the published operating envelope and acceptable superheat range, whatever the climatic conditions and the capacity demand. -
Page 18: Internal Pressure Relief Valve
To ensure proper functioning and to avoid false readings, the discharge line thermostat must be installed and insulated according to the procedure and recommendations hereunder. Assembly of the discharge line thermostat ▪ Install the discharge line thermostat on the discharge tube 120 mm from top cap. ▪... -
Page 19: Filter Screens
10 to 15 3.11 Sound shell At this time, no sound shell attenuation for YH*K1E compressors is available from Emerson. If a sound shell is still needed, particular attention shall be paid to the electrostatic charge of the insulation material as it could be a potential ignition source. -
Page 20: Compressor Oil Return, Oil Balancing And Floodback Tests
Systems with multiple compressor applications (two, three, or more) require additional oil balancing qualification 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: Suction Line Accumulator
CAUTION Inadequate lubrication! Bearing destruction! For R450A and R513A refrigerants, Emerson recommends using suction accumulators, unless it has been qualified that a suction line accumulator is not needed. Due to Copeland Scrolls inherent ability to handle liquid refrigerant, for example in flooded start and defrost cycle operation, an accumulator is not required in most systems. -
Page 22: Electrical Connection
For safety 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. -
Page 23: Wiring Diagrams
Fusite pins which might lead to refrigerant leaks. Cable glands have an influence 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. -
Page 24: Motor Insulation
Emerson subjects all scroll compressors to a high-voltage test after final assembly. Each motor phase winding is tested according to EN 60034-1 at a differential voltage of 1000V plus twice the nominal voltage. -
Page 25: Start-Up & Operation
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. Therefore, it is not necessary for the system manufacturer/installer to leak-pressure test the compressor on the assembly/system. -
Page 26: Preliminary Checks - Pre-Starting
Evacuating the system only on the suction side of a scroll compressor can occasionally result in a temporary no-start condition for the compressor. The reason for this is that the floating seal could axially seal with the scroll set, with the higher pressure on the floating seal. Consequently, until the pressures equalise, the floating seal and scroll set can be held tightly together. -
Page 27: Run-In Time
Run-in time Scroll compressors exhibit a slight decrease in input power during the initial running period. Published performance ratings are based on calorimeter testing which is carried out after run-in. Therefore, users should be aware that before the performance specified by EN 12900 is achieved the compressor needs to be run in. -
Page 28: Pumpdown Cycle
5.13 Minimum run time Emerson recommends a maximum of 10 starts per hour. There is no minimum off 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 after start-up. -
Page 29: Oil Level
For this purpose, a sample compressor for lab testing, equipped with an external oil sight tube, is available from Emerson. The BOM GCG version contains a stub tube connection 7/8" (22.2 mm) for paralleling on the compressor housing at oil level height. -
Page 30: Maintenance & Repair
Maintenance & repair WARNING Conductor cables! Electrical shock! 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 31: Preparation And Work Procedure
Preparation and work procedure A work procedure shall be provided in the preparation stage. All maintenance staff and others working at the site shall be instructed on the nature of the work being carried out. If any work is to be conducted on the refrigeration systems or any associated parts, appropriate fire extinguishing equipment shall be provided. -
Page 32: Exchanging The Refrigerant
Exchanging the refrigerant WARNING Air/A2L refrigerant mixture in a potentially flammable or explosive atmosphere! Fire and explosion hazard! In any case avoid air/A2L mixture in the refrigeration system. Make sure that the system is filled with pure A2L refrigerant. In the event that the refrigerant needs replacing, the charge should be recovered using A2L-qualified refrigerant recovery unit and recycling bottles. -
Page 33: Compressor Return Procedure
Since POE holds moisture more readily than mineral oil it is more difficult 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. Therefore, it is recommended that a properly sized filter-drier is installed in all POE systems. -
Page 34: Oil Additives
Oil additives Although Emerson cannot comment on any specific product, from our own testing and past experience, we do not recommend the use of any additives to reduce compressor bearing losses or for any other purpose. -
Page 35: Troubleshooting
Troubleshooting Most in-warranty electrical failures are a result of mechanical problems (particles in the oil, liquid refrigerant in the oil, etc.) and most mechanical problems are a result of system problems. Unless the reason for the failure is found, replacing the compressor will probably lead to another compressor failure. - Page 36 Excessive Too high Make sure the compressor operates within the acceptable discharge compressor superheat range published by Emerson. temperature superheat Excessive cooling / Check the load design. Make sure that proper insulation is applied. heating load or Correct it as necessary.
- Page 37 Condition Cause Corrective action Check the piping layout design. Installations of pipe being routed over or around obstacles can inadvertently create unwanted traps for the oil return. As much as possible the refrigerant line should Oil trap due to travel a direct and straight course between the evaporator and incorrect piping compressor.
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Page 38: Dismantling & Disposal
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 39 AGL_HP_ST_YHK1E_E_Rev02...
- Page 40 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.