Table Of Contents - Emerson Copeland ZH04KCU Application Manuallines

About these guidelines ............................................................................................... 1
1 Safety instructions ........................................................................................... 1
1.1 Icon explanation ............................................................................................................... 1
1.2 Safety statements ............................................................................................................ 2
1.3 General instructions ......................................................................................................... 2
2 Product description ......................................................................................... 3
2.1 Compressor range ........................................................................................................... 3
2.2 Nomenclature ................................................................................................................... 3
2.3 BOM variations ................................................................................................................ 3
2.4 Application range ............................................................................................................. 4
2.4.1 Qualified refrigerant and oil .................................................................................. 4
2.4.2 Application limits ................................................................................................... 4
2.4.3 PED category and maximum allowable pressure PS .......................................... 4
2.5 Dimensions ...................................................................................................................... 5
3 Installation ........................................................................................................ 6
3.1 Compressor handling ....................................................................................................... 6
3.1.1 Transport and storage .......................................................................................... 6
3.1.2 Positioning and securing ...................................................................................... 6
3.1.3 Installation location ............................................................................................... 6
3.2 Mounting parts ................................................................................................................. 7
3.3 Brazing procedure ............................................................................................................ 7
3.3.1 General brazing procedure................................................................................... 7
3.3.2 Brazing procedure for ZH*KCU compressors in parallel applications ................. 8
3.4 Pressure safety controls .................................................................................................. 8
3.4.1 High-pressure protection ...................................................................................... 8
3.4.2 Low-pressure protection ....................................................................................... 9
3.5 System protection for operation below atmospheric pressure ......................................... 9
3.6 Crankcase heater ........................................................................................................... 10
3.7 Discharge gas temperature protection ........................................................................... 11
3.7.1 Excessive discharge gas temperatures ............................................................. 11
3.7.2 Discharge line thermostat................................................................................... 12
3.8 Internal pressure relief valve .......................................................................................... 13
3.9 Discharge check valve ................................................................................................... 13
3.10 Filter screens ................................................................................................................. 13
3.11 Mufflers .......................................................................................................................... 13
3.12 Sound shell .................................................................................................................... 13
3.13 Insulation material .......................................................................................................... 13
3.14 Reversing valves ............................................................................................................ 14
3.15 Sound and vibration ....................................................................................................... 14
3.16 Compressor oil return, oil balancing, refrigerant floodback and oil dilution tests .......... 15
AGL_HP_ST_ZHKCU_EN_Rev01