Midea LSBLG320/MZ - Default Chapter; Table of Contents

MCAC-CTSM-2014-03 DX type water-cooled screw chiller (PCB Control)
1
Contents
Ⅰ. Safety precautions ....................................................................................................... 2
1. Installation safety considerations .................................................................................................... 2
2. Maintenance safety considerations ..................................................................................................... 3
3. Repair safety considerations ................................................................................................................ 4
Ⅱ. Product .......................................................................................................................... 6
1.General information .................................................................................................................................. 6
2. Features ................................................................................................................................................... 8
3. Specifications .......................................................................................................................................... 10
4.Outline Dimension ................................................................................................................................... 12
5.Refrigeration system .............................................................................................................................. 13
6. Major System Components.................................................................................................................. 17
7.Water Flow ................................................................................................................................................. 21
8. Unit sound levels .................................................................................................................................... 25
9. Compressor oil........................................................................................................................................ 25
10. Recommend breaker current ............................................................................................................ 25
11.Operating Range .................................................................................................................................... 26
12.Capacity table ......................................................................................................................................... 28
13. Accessories ........................................................................................................................................... 33
Ⅲ. Control ........................................................................................................................ 34
1. Control Flow Chart ................................................................................................................................. 34
2. Energy Adjustment ................................................................................................................................ 35
3. Start/stop process .................................................................................................................................. 36
4. Sensors ..................................................................................................................................................... 37
5. Parts control ............................................................................................................................................ 39
6. Operation Part ......................................................................................................................................... 46
7. Safety protection .................................................................................................................................... 61
Ⅳ.Electrical control ......................................................................................................... 63
1.Electrical data ........................................................................................................................................... 63
2. Electrical components introduction .................................................................................................. 63
3.Electrical Parts parameter setting ....................................................................................................... 65
4.Field wiring ................................................................................................................................................ 68
Ⅴ. Installation .................................................................................................................. 73
1. Unit installation ....................................................................................................................................... 73
2. Water Pipeline System installation .................................................................................................... 76
3.Wiring installation ................................................................................................................................... 83
Ⅵ. Commissioning ....................................................................................................... 85
1.Pre start-up ................................................................................................................................................ 85
2. Start-up ...................................................................................................................................................... 89
Ⅶ. Maintenance ............................................................................................................... 92
1. Daily maintenance .................................................................................................................................. 92
2. Maintenance ............................................................................................................................................. 97
Ⅷ. Troubleshooting ....................................................................................................... 103
1.Protection items ..................................................................................................................................... 103
2.Troubleshooting ..................................................................................................................................... 106
Ⅸ. Appendix 1 ................................................................................................................ 108
Manufacture reserves the right to discontinue, or change at any time, specifications or designs without
notices and without incurring obligations.