Carrier 30HXC Installation, Operation And Maintenance Instructions page 3

9 - WATER CONNECTIONS ...................................................................................................................................................... 36
9.1 - Operating precautions ........................................................................................................................................................... 36
9.2 - Water connections .................................................................................................................................................................. 36
9.3 - Flow control ............................................................................................................................................................................ 37
9.4 - Evaporator and condenser for the 30HXC water box bolt tightening ............................................................................ 38
9.5 - Frost protection ...................................................................................................................................................................... 38
9.6 - Operation of two units in master/slave mode ..................................................................................................................... 38
10 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA ................................................................................. 39
10.1 - Geared twin screw compressor ........................................................................................................................................... 39
10.2 - Pressure vessels ..................................................................................................................................................................... 39
10.3 - Electronic expansion device (EXV) .................................................................................................................................. 40
10.4 - Economizer ........................................................................................................................................................................... 40
10.5 - Oil pumps .............................................................................................................................................................................. 40
10.6 - Motor cooling valves ............................................................................................................................................................ 40
11 - MAIN OPTIONS AND ACCESSORIES ........................................................................................................................... 41
11.1 - Compressor suction valves (option 92) .............................................................................................................................. 42
11.2 - Electric protection level of the 30HXC control boxes to IP44C (option 20) ............................................................... 42
11.3 - Tropicalised control box for 30HXC units (option 22) ..................................................................................................... 42
11.4 - Disassembled 30HXC units (option 51) ............................................................................................................................ 42
12 - MAINTENANCE ................................................................................................................................................................... 42
12.1 - Maintenance instructions .................................................................................................................................................... 42
12.2 - Soldering and welding.......................................................................................................................................................... 42
12.3 - Refrigerant charging - adding charge ................................................................................................................................. 42
12.4 - Indication of low charge on a 30HXC system ................................................................................................................... 43
12.5 - Electrical maintenance ........................................................................................................................................................ 43
12.6 - Pressure transducers ............................................................................................................................................................ 43
12.7 - Oil charging - low oil recharging ........................................................................................................................................ 43
12.8 - Integral oil filter change ....................................................................................................................................................... 44
12.9 - Filter change-out schedule .................................................................................................................................................. 44
12.10 - Filter change-out procedure .............................................................................................................................................. 44
12.11 - Compressor replacement ................................................................................................................................................... 44
12.12 - Corrosion control ............................................................................................................................................................... 45
13 - START-UP CHECKLIST FOR 30HXC LIQUID CHILLERS (USE FOR JOB FILE) ............................................ 46
The cover illustrations are for illustrative purposes only and are not part of any offer for sale or contract.
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