This chapter describe the procedure of the maintenance of the Air cooled water chillers.
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6.1. Maintenance criteria
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6.2. Maintenance criteria of Screw Compressor
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6.3. Maintenance of Water Quality
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6.3.2. Criteria of Water .............................................................................................................6.3.2. Criteria of Water
6.3.3. Maintenance method of Water Quality
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6.4. Cleaning of water side heat exchanger
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6.4. Cleaning of water side heat exchanger ......................................................................6.4. Cleaning of water side heat exchanger
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6.5. Check items in daily operation
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6.6. Caution on handling of R407C
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6.6.3. Refrigeration cycle complete parts
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6.6.4. Reference materials
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6.7. Manual at compressor overall check and parts check
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6.7.1. Collection of refrigerant
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6.7.2. Structure and Start-up method of Compressor
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6.7.2. Structure and Start-up method of Compressor ..............................................................6.7.2. Structure and Start-up method of Compressor
6.8. Refrigerant cycle diagrams
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6.8.1. Refrigerant cycle diagram of Hitachi Air-Cooled Water Chiller
(RCUE 40, 50, 60, 70, 100, 120, 140, 180, 210, 280, 350 AG2)
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6.8.2. Refrigerant Cycle Diagram of Hitachi Air-Cooled Water Chiller
(RCUE 80, 160, 240, 320, 400 AG2) with economizer.
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6.8.3. Refrigerant Cycle diagram of Hitachi Air-to-water Heat Pump Chiller
(RHUE 40, 50, 60, 70, 100, 120, 140, 180, 210AG2)
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6.8.4. Refrigerant Cycle diagram of Hitachi Air-to-water Heat Pump Chiller
(RHUE 80, 160, 240 AG2) With economizer.)
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6.10. Vacuuming Procedure
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6.11. Additional refrigerant insertion
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6.11.1. Confi rmation of tank
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6.11.2. Measurement device used for refrigerant insertion
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6.11.3. Procedure for refrigerant insertion
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6.11.4. Check of leakage position
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6.11.5. Caution at Replacement of Expansion Valve
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