POWERCIAT LX ST/HE/XE EN-2
CONTENTS
1 - INTRODUCTION ....................................................................................................................................................................4
1.1 - Installation safety considerations ........................................................................................................................................ 4
1.2 - Equipment and components under pressure ...................................................................................................................... 5
1.3 - Maintenance safety considerations ..................................................................................................................................... 5
1.4 - Repair safety considerations ............................................................................................................................................... 6
2 - PRELIMINARY CHECKS .......................................................................................................................................................8
2.1 - Check equipment received .................................................................................................................................................. 8
2.2 - Moving and siting the unit....................................................................................................................................................8
3 - DIMENSIONS, CLEARANCES ............................................................................................................................................ 10
3.1 - LX 0808 to 1008 ................................................................................................................................................................ 10
3.2 - LX 1108 to 1358 ................................................................................................................................................................10
3.3 - LX 1528 ............................................................................................................................................................................. 11
3.4 - LX1858 to 2308 ................................................................................................................................................................. 11
3.5 - LX2528 to 2628 ................................................................................................................................................................. 12
3.6 - LX 3028 ............................................................................................................................................................................. 12
3.7 - LX 3428 to 4408 ................................................................................................................................................................ 13
3.8 - LX 4608 ............................................................................................................................................................................. 13
3.9 - Multiple chiller installation.................................................................................................................................................. 14
3.10 - Distance to the wall ......................................................................................................................................................... 14
4 - PHYSICAL PROPERTIES AND ELECTRICAL DATA FOR LX UNITS .............................................................................. 15
4.1 - Physical properties of LX units .......................................................................................................................................... 15
4.2 - Electrical data ....................................................................................................................................................................19
4.3 - Compressor electrical data................................................................................................................................................23
4.4 - Compressor usage per circuit (A, B, C, D) ........................................................................................................................ 23
4.5 - Electrical data, optional hydraulic module ......................................................................................................................... 25
5 - ELECTRICAL CONNECTION .............................................................................................................................................26
5.1 - Power supply .....................................................................................................................................................................26
5.2 - Voltage phase imbalance (%)............................................................................................................................................ 26
5.3 - Power connection/disconnect switch................................................................................................................................. 26
5.4 - Recommended wire sections ............................................................................................................................................ 26
5.5 - Power cable entry..............................................................................................................................................................26
5.6 - Field control wiring ............................................................................................................................................................ 27
6 - APPLICATION DATA ........................................................................................................................................................... 28
6.1 - Operating range ................................................................................................................................................................ 28
6.2 - Minimum chilled water ow (unit without hydraulic module).............................................................................................. 28
6.3 - Maximum chilled water ow (units without hydraulic module) ........................................................................................... 29
6.4 - Variable ow evaporator .................................................................................................................................................... 29
6.5 - System minimum water volume ........................................................................................................................................ 29
6.6 - Maximum system water volume ........................................................................................................................................ 29
6.7 - Evaporator water ow rate ................................................................................................................................................ 29
6.8 - Evaporator pressure drop curve ........................................................................................................................................ 30
7 - WATER CONNECTIONS ..................................................................................................................................................... 31
7.1 - Operating precautions ....................................................................................................................................................... 31
7.2 - Victaulic water connections ............................................................................................................................................... 32
7.3 - Flow control ....................................................................................................................................................................... 33
7.4 - Evaporator water box bolt tightening ................................................................................................................................. 33
7.5 - Frost protection .................................................................................................................................................................33
7.6 - Operation of two units in master/slave mode (option) ....................................................................................................... 33
7.7 - Pump characteristics ......................................................................................................................................................... 34
8 - HEAT RECLAIM CONDENSER OPTION ............................................................................................................................ 37
8.1 - Physical properties, LX units with heat reclaim condenser option .................................................................................... 37
8.2 - Dimensions, clearances .................................................................................................................................................... 37
8.3 - Condenser location ........................................................................................................................................................... 41
8.4 - Condenser water connections ........................................................................................................................................... 41
8.5 - Operating ranges for stable operation (no mode changeover) ......................................................................................... 41
8.6 - Operating limits for changeover between modes ............................................................................................................. 42
8.7 - Flow control ....................................................................................................................................................................... 42
8.8 - Heat reclaim operation ...................................................................................................................................................... 42
8.9 - Condenser pump selection................................................................................................................................................43
8.10 - Frost protection ...............................................................................................................................................................43
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