Application Guidelines Copeland Scroll™ Variable Speed Compressors XHV0181P* to XHV0382P* About these guidelines ............................................................................................... 1 1 Safety instructions ........................................................................................... 1 1.1 Icon explanation ............................................................................................................... 1 1.2 Safety statements ............................................................................................................ 1 1.3 General instructions ......................................................................................................... 2 2 Product description ......................................................................................... 3 2.1 Common information about Copeland Scroll™ compressors .......................................... 3 2.2 Variable speed advantages ............................................................................................. 4 2.3 Compressor and drive nomenclature ............................................................................... 5 2.4 Application considerations ............................................................................................... 5 2.4.1 Qualified refrigerant and oil .................................................................................. 5 2.4.2 Admissible temperature and relative humidity ranges ......................................... 5 2.4.3 Application limits & operating envelopes .............................................................. 6 2.4.4 Discharge line temperature control mode ............................................................ 9 2.4.5 Design features .................................................................................................... 9 2.4.6 Dimensions ......................................................................................................... 10 3 Installation ...................................................................................................... 11 3.1 Compressor and drive handling ..................................................................................... 11 3.1.1 Compressor transport and storage .................................................................... 11 3.1.2 Compressor positioning and securing ................................................................ 11 3.1.3 Installation location ............................................................................................. 11 3.1.4 Compressor mounting parts ............................................................................... 12 3.2 Compressor brazing procedure ..................................................................................... 12 3.3 Accumulators ................................................................................................................. 13 3.4 Screens .......................................................................................................................... 14 3.5 Mufflers .......................................................................................................................... 14 3.6 Reversing valves ............................................................................................................ 14 3.7 Sound and vibrations ..................................................................................................... 15 4 Electrical connection ..................................................................................... 16 4.1 Recommendations for the ED3 drive ............................................................................. 16 4.2 General recommendations ............................................................................................. 16 4.3 Electrical installation ...................................................................................................... 16 4.4 Wiring diagrams ............................................................................................................. 18 4.4.1 Motor windings ................................................................................................... 20 4.4.2 Protection devices .............................................................................................. 20 4.4.3 Crankcase heating function ................................................................................ 20 4.5 Pressure safety controls ................................................................................................ 20 4.5.1 High-pressure protection .................................................................................... 20 4.5.2 Low-pressure protection ..................................................................................... 20 4.6 Discharge gas temperature protection ........................................................................... 21 C6.2.39/1218/E 4.7 High-potential testing ..................................................................................................... 21 5 Starting up & operation .................................................................................. 23 5.1 Strength pressure test .................................................................................................... 23 5.2 Compressor tightness test ............................................................................................. 23 5.3 Preliminary checks – Pre-starting .................................................................................. 23 5.4 Charging procedure ....................................................................................................... 24 5.5 Run-in time ..................................................................................................................... 24 5.6 Initial start-up.................................................................................................................. 24 5.7 Soft start ......................................................................................................................... 24 5.8 Starting sound ................................................................................................................ 24 5.9 Deep vacuum operation ................................................................................................. 25 5.10 Shell temperature ........................................................................................................... 25 5.11 Pumpdown cycle ............................................................................................................ 25 5.12 Minimum run time .......................................................................................................... 25 5.13 Shut-off sound ................................................................................................................ 25 5.14 Oil level and oil return .................................................................................................... 26 6 Maintenance & repair ..................................................................................... 27 6.1 Exchanging the refrigerant ............................................................................................. 27 6.2 Replacing a compressor ................................................................................................ 27 6.2.1 Compressor replacement ................................................................................... 27 6.2.2 Start-up of a new or replacement compressor ................................................... 27 6.3 Lubrication and oil removal ............................................................................................ 28 6.4 Oil additives.................................................................................................................... 28 6.5 Unbrazing system components ..................................................................................... 29 7 Troubleshooting ............................................................................................. 30 8 Dismantling & disposal .................................................................................. 33 9 References ...................................................................................................... 33 DISCLAIMER .............................................................................................................. 33 C6.2.39/1218/E About these guidelines s The purpose of these guidelines is to provide guidance in the application of Copeland Scroll™ compressors and motor control drives in users’ systems. They are intended to answer the questions raised while designing, assembling and operating a system with these products. Safety nstruction i Besides the support they provide, the instructions listed herein are also critical for the proper and safe functioning of the compressors and motor control drives. Emerson cannot guarantee the performance and reliability of the products if they are misused in regard of these guidelines. These application guidelines cover stationary applications only. For mobile applications, please contact the Application Engineering department at Emerson as other considerations may apply. Product Product escription d 1 Safety instructions Copeland Scroll compressors and motor control drives are manufactured according to the latest European and US safety standards. Particular emphasis has been placed on the user’s safety. These