3
CONTENTS
1 - INTRODUCTION ........................................................................................................................................................................ 4
1.1 - Installation safety considerations ............................................................................................................................................... 4
1.2 - Equipment and components under pressure ............................................................................................................................... 4
1.3 - Maintenance safety considerations ............................................................................................................................................. 5
1.4 - Repair safety considerations ....................................................................................................................................................... 5
2 - PRELIMINARY CHECKS .......................................................................................................................................................... 7
2.1 - Check equipment received ......................................................................................................................................................... 7
2.2 - Moving and siting the unit ......................................................................................................................................................... 7
3 - DIMENSIONS/CLEARANCES .................................................................................................................................................. 9
4 - PHYSICAL DATA ................................................................................................................................................................... 11
5 - ELECTRICAL DATA .............................................................................................................................................................. 11
6 - APPLICATION DATA ............................................................................................................................................................. 14
6.1 - Unit operating range ................................................................................................................................................................. 14
6.2 - Evaporator water flow rates ..................................................................................................................................................... 14
6.3 - Minimum water flow rate ......................................................................................................................................................... 14
6.4 - Maximum evaporator water flow rate ...................................................................................................................................... 14
6.5 - Water loop volume ................................................................................................................................................................... 14
6.6 - Unit operating range at full and part load ................................................................................................................................. 15
6.7 - Pressure drop in the plate heat exchangers ............................................................................................................................... 15
7 - ELECTRICAL CONNECTION ............................................................................................................................................... 16
7.1 - Control box ............................................................................................................................................................................... 16
7.2 - Power supply ............................................................................................................................................................................ 17
7.3 - Voltage phase imbalance (%) ................................................................................................................................................... 17
8 - RECOMMENDED WIRE SECTIONS .................................................................................................................................... 18
8.1 - Field control wiring .................................................................................................................................................................. 18
9 - WATER CONNECTIONS ....................................................................................................................................................... 19
9.1 - Operating precautions and recommendations .......................................................................................................................... 19
9.2 - Hydronic connections ............................................................................................................................................................... 20
9.3 - Frost protection ........................................................................................................................................................................ 20
10 - NOMINAL SYSTEM WATER FLOW CONTROL ............................................................................................................. 22
10.1 - Water flow control procedure ................................................................................................................................................ 22
10.2 - Pump pressure/flow rate curves ............................................................................................................................................. 24
10.3 - Available static system pressure ............................................................................................................................................. 25
11 - START-UP .............................................................................................................................................................................. 26
11.1 - Preliminary checks ................................................................................................................................................................. 26
11.2 - Actual start-up ........................................................................................................................................................................ 26
11.3 - Operation of two units in master/slave mode ......................................................................................................................... 26
12 - MAINTENANCE .................................................................................................................................................................... 27
12.1 - General maintenance of the refrigerant circuit ....................................................................................................................... 27
12.2 - Refrigerant charge .................................................................................................................................................................. 27
12.3 - Electrical maintenance ........................................................................................................................................................... 28
12.4 - Condenser coil ........................................................................................................................................................................ 29
13 - AQUASNAP MAINTENANCE PROGRAM ....................................................................................................................... 30
13.1 - Maintenance schedule ............................................................................................................................................................ 30
13.2 - Description of the maintenance operations ............................................................................................................................ 30
14 - START-UP CHECKLIST FOR 30RA LIQUID CHILLERS (USE FOR JOB FILE) .................................................... 32
Summary of Contents for 30RA040B
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