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CONTENTS
1 - INTRODUCTION .....................................................................................................................................................................
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1.1 - Installation safety considerations ...........................................................................................................................................4
1.2 - Equipment and components under pressure ........................................................................................................................ 4
1.3 - Maintenance safety considerations ........................................................................................................................................ 4
1.4 - Repair safety considerations ................................................................................................................................................... 5
2 - PRELIMINARY CHECKS ......................................................................................................................................................
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2.1 - Check equipment received ...................................................................................................................................................... 6
2.2 - Moving and siting the unit ....................................................................................................................................................... 7
3 - DIMENSIONS, CLEARANCES .............................................................................................................................................
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3.1 - 30HZ/HZV 043-065 ................................................................................................................................................................. 8
3.2 - 30HZ/HZV 091-225 ................................................................................................................................................................. 8
3.3 - 30HZ/HZV 250-280 ................................................................................................................................................................. 9
4 - PHYSICAL AND ELECTRICAL DATA FOR 30HZ/HZV ............................................................................................
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4.1 - Physical data ........................................................................................................................................................................... 10
4.2 - Electrical data ......................................................................................................................................................................... 11
4.3 - Power supply ...........................................................................................................................................................................12
4.4 - Voltage phase imbalance (%) ...............................................................................................................................................12
4.5 - Recommended wire sections ................................................................................................................................................ 12
5 - APPLICATION DATA ...........................................................................................................................................................
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5.1 - Unit operating range .............................................................................................................................................................. 13
5.2 - Minimum chilled water flow ................................................................................................................................................. 13
5.3 - Maximum chilled water flow ................................................................................................................................................. 13
5.4 - Variable flow evaporator ....................................................................................................................................................... 14
5.5 - System minimum water volume ........................................................................................................................................... 14
5.6 - Evaporator flow rate ..............................................................................................................................................................14
5.7 - Condenser water flow rates ................................................................................................................................................... 15
5.8 - Condenser water flow restrictor ........................................................................................................................................... 15
6 - WATER CONNECTIONS ......................................................................................................................................................
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6.1 - Operating precautions ........................................................................................................................................................... 16
6.2 - Water connections .................................................................................................................................................................. 17
6.3 - Flow control ............................................................................................................................................................................17
6.4 - Condenser connections .......................................................................................................................................................... 17
6.5 - Frost protection ......................................................................................................................................................................18
6.6 - Refrigerant line connections (30HZV) ............................................................................................................................... 18
6.7 - Operation of two units in master/slave mode ..................................................................................................................... 22
7 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA FOR STANDARD UNITS ..................................
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7.1 - Compressors............................................................................................................................................................................ 22
7.2 - Lubricant .................................................................................................................................................................................22
7.3 - Pressure vessels....................................................................................................................................................................... 22
7.4 - Electronic expansion device (EXV) ....................................................................................................................................23
7.5 - Refrigerant .............................................................................................................................................................................. 23
7.6 - High-pressure safety switch .................................................................................................................................................. 23
7.7 - Moisture indicator .................................................................................................................................................................. 23
7.8 - Filter drier ............................................................................................................................................................................... 23
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