3
The cover illustrations are for illustrative purposes only and are not part of any offer for sale or contract.
9 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA ................................................................................... 32
9.1 - Geared twin screw compressor ............................................................................................................................................. 32
9.2 - Pressure vessels....................................................................................................................................................................... 32
9.3 - Electronic expansion device (EXV) ....................................................................................................................................33
9.4 - Economizer .............................................................................................................................................................................33
9.5 - Oil pumps ................................................................................................................................................................................33
9.6 - Motor cooling valves .............................................................................................................................................................. 34
9.7 - Sensors ..................................................................................................................................................................................... 34
10 - MAIN OPTIONS AND ACCESSORIES ........................................................................................................................... 35
10.1 - Compressor suction valves (option 92)..............................................................................................................................35
10.2 - Compressor and evaporator noise insulation (30GX - option 14A) .............................................................................. 35
10.3 - Low-noise 30GX units equipped with acoustic panels (option 15) ................................................................................ 35
10.4 - Evaporator frost protection (30GX - option 41A) ...........................................................................................................35
10.5 - Year-round operation of 30GX units (option 28) ............................................................................................................. 35
10.6 - Soft Start for 3- and 4-compressor 30HXC and 30GX units (option 25) ......................................................................35
10.7 - Electric protection level of the 30HXC control boxes to IP44C (option 20) ............................................................... 36
10.8 - Tropicalised control box for 30HXC and 30GX units (option 22) .................................................................................36
10.9 - Brine units for low-temperature evaporator leaving applications (option 5) ............................................................... 36
10.10 - Disassembled 30HXC units (option 51) .......................................................................................................................... 36
10.11 - Available fan pressure of 150 Pa for 30GX units (option 12) ....................................................................................... 36
11 - MAINTENANCE ...................................................................................................................................................................36
11.1 - Maintenance instructions ....................................................................................................................................................36
11.2 - Soldering and welding..........................................................................................................................................................36
11.3 - Refrigerant charging - adding charge ................................................................................................................................ 36
11.4 - Indication of low charge on a 30HXC system...................................................................................................................37
11.5 - Electrical maintenance ........................................................................................................................................................37
11.6 - Pressure transducers ............................................................................................................................................................38
11.7 - Oil charging - low oil recharging ........................................................................................................................................38
11.8 - Integral oil filter change.......................................................................................................................................................38
11.9 - Filter change-out schedule .................................................................................................................................................. 38
11.10 - Filter change-out procedure .............................................................................................................................................. 38
11.11 - Compressor replacement................................................................................................................................................... 38
11.12 - Corrosion control ............................................................................................................................................................... 39
11.13 - Condenser coil ....................................................................................................................................................................39
12 - START-UP CKECKLIST FOR 30HXC/GX LIQUID CHILLERS (USE FOR JOB FILE).....................................40
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