Midea MWSC1080A-FB3, Manual

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Flooded 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 ............................................................................................................................. 13
4. Outline dimension ...................................................................................................................... 15
5. Refrigeration system .................................................................................................................. 16
6. Major system components ......................................................................................................... 17
7. Water flow .................................................................................................................................. 21
8. Operating range ......................................................................................................................... 24
9. Capacity table ............................................................................................................................ 25
10. Accessories ........................................................................................................................ 31
III. Control ........................................................................................................... 32
1. Control flow chart ....................................................................................................................... 32
2. Energy adjustment ..................................................................................................................... 33
3. Start/stop process ...................................................................................................................... 34
4. Sensors ...................................................................................................................................... 35
5. Parts control ............................................................................................................................... 36
6. Operation part ............................................................................................................................ 44
7. Safety protection ........................................................................................................................ 57
IV. Electrical control ........................................................................................... 59
1. Electrical data ............................................................................................................................ 59
2. Electrical components introduction ............................................................................................ 60
3. Electrical parts parameter setting .............................................................................................. 62
4. Field wiring ................................................................................................................................. 64
5. Wiring Diagrams ........................................................................................................................ 67
V. Installation ..................................................................................................... 76
1. Unit installation ........................................................................................................................... 76
2. Water pipeline system installation ............................................................................................. 79
3. Wiring installation ....................................................................................................................... 85
VI. Commissioning ............................................................................................. 87
1. Pre start-up ................................................................................................................................ 87
2. Start-up ...................................................................................................................................... 91
VII. Maintenance .................................................................................................. 93
1. Daily maintenance ..................................................................................................................... 93
2. Maintenace ................................................................................................................................ 97
VIII. Troubleshooting .......................................................................................... 104
1. Protection items ....................................................................................................................... 104
2. Troubleshooting ....................................................................................................................... 107
IX. Appendix 1 ................................................................................................... 110
Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and witho
ut incurring obligations.
Climate solution for green environment
Flooded Type
Water cooled screw chiller
Technical service manual
LSBLG365~LSBLG1500/MCFN