Table of Contents
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CONTENTS
1 - INTRODUCTION ............................................................................................................................................................................ 4
1.1 - Check equipment received ........................................................................................................................................................ 4
1.2 - Installation safety considerations .............................................................................................................................................. 4
1.3 - Equipment and components under pressure ............................................................................................................................ 5
1.4 - Maintenance safety considerations ........................................................................................................................................... 5
1.5 - Repair safety considerations ..................................................................................................................................................... 7
2 - PRELIMINARY CHECKS ............................................................................................................................................................... 8
2.1 - Check equipment received ........................................................................................................................................................ 8
2.2 - Moving and siting the unit.......................................................................................................................................................... 8
2.3 - Checks before system start-up.................................................................................................................................................. 8
2.4 - Lifting labels .............................................................................................................................................................................. 9
3 - DIMENSIONS, CLEARANCES .................................................................................................................................................... 10
3.1 - 61AF 022-035, units with and without hydraulic module ......................................................................................................... 10
3.2 - 61AF 045-055, units with and without hydraulic module ......................................................................................................... 11
3.3 - 61AF 075-105, units with and without hydraulic module ......................................................................................................... 12
3.4 - 61AF 035 option 11, units with and without hydraulic module ................................................................................................. 13
3.5 - 61AF 045-055 option 11, units with and without hydraulic module ......................................................................................... 14
3.6 - 61AF 075-105 option 11, units with and without hydraulic module ......................................................................................... 15
3.7 - Multiple-unit installation ........................................................................................................................................................... 15
4 - PHYSICAL DATA ........................................................................................................................................................................ 16
5 - ELECTRICAL DATA .................................................................................................................................................................... 17
5.1 - Compressor usage and electrical data for standard units ....................................................................................................... 17
) - standard unit (with main disconnect without fuse) ........................................... 17
(1)
6 - APPLICATION DATA ................................................................................................................................................................... 19
6.1 - Unit operating range ................................................................................................................................................................ 19
6.2 - Plate heat exchanger water flow ............................................................................................................................................. 19
6.3 - Minimum water flow rate ......................................................................................................................................................... 19
6.4 - Maximum plate heat exchanger water flow rate ...................................................................................................................... 19
6.5 - Water loop volume .................................................................................................................................................................. 20
6.6 - Plate heat exchanger pressure drop curves............................................................................................................................ 20
7 - ELECTRICAL CONNECTION ..................................................................................................................................................... 21
7.1 - Power supply ........................................................................................................................................................................... 21
7.2 - Voltage phase imbalance (%).................................................................................................................................................. 21
7.3 - Recommended wire sections .................................................................................................................................................. 21
7.4 - Field control wiring .................................................................................................................................................................. 21
7.5 - Power supply ........................................................................................................................................................................... 21
7.6 - 24 V user power reserve ......................................................................................................................................................... 21
8 - WATER CONNECTIONS ............................................................................................................................................................. 23
8.1 - Operating precautions and recommendations ........................................................................................................................ 23
8.2 - Hydraulic connections ............................................................................................................................................................. 23
8.3 - Frost protection ....................................................................................................................................................................... 23
8.4 - Protection against cavitation (option 116) ............................................................................................................................... 24
9 - NOMINAL SYSTEM WATER FLOW CONTROL ......................................................................................................................... 27
9.1 - General.................................................................................................................................................................................... 27
9.2 - Water flow control procedure (fixed speed) ............................................................................................................................. 27
9.3 - Water flow control procedure (variable speed) ........................................................................................................................ 28
9.4 - Available system pressure for units with hydraulic module ..................................................................................................... 28
10 - START-UP .................................................................................................................................................................................. 29
10.1 - Preliminary checks ................................................................................................................................................................ 29
10.2 - Actual start-up ....................................................................................................................................................................... 29
10.3 - Operation of two units in master/slave mode ........................................................................................................................ 29
10.4 - Supplementary electric resistance heaters ........................................................................................................................... 30
11 - MAJOR SYSTEM COMPONENTS ............................................................................................................................................ 31
11.1 - Compressors ......................................................................................................................................................................... 31
11.2 - Lubricant ................................................................................................................................................................................ 31
11.3 - Air evaporators ...................................................................................................................................................................... 31
11.4 - Fans ....................................................................................................................................................................................... 31
11.5 - Electronic expansion valve (EXV) of the main circuit ............................................................................................................ 31
11.6 - Electronic expansion valve (EXV) of the economised circuit ................................................................................................. 31
11.7 - Four-way valve ...................................................................................................................................................................... 31
11.8 - Moisture indicator .................................................................................................................................................................. 31
11.9 - Filter drier .............................................................................................................................................................................. 31
11.10 - Condenser ........................................................................................................................................................................... 32
11.11 - Economiser .......................................................................................................................................................................... 32
11.12 - Refrigerant ........................................................................................................................................................................... 32
11.13 - High-pressure safety switch ................................................................................................................................................ 32
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