Danfoss AR05 017 Series, Installation, Operation And Maintenance Instructions

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2 Installation, operation and maintenance instructions - VMGFE102
CONTENTS
1  INTRODUCTION ................................................................................................................................................................... 4
1.2 - Check equipment received ........................................................................................................................................................................................4
1.3 - Installation safety considerations ............................................................................................................................................................................5
1.4 - Equipment and components under pressure .....................................................................................................................................................5
1.5 - Maintenance safety considerations ........................................................................................................................................................................6
1.6 - Repair safety considerations ......................................................................................................................................................................................6
2  MOVING AND SITING THE UNIT ......................................................................................................................................... 8
2.1 - Moving ...............................................................................................................................................................................................................................8
2.2 - Siting the unit ..................................................................................................................................................................................................................8
2.3 - Checks before system start-up..................................................................................................................................................................................8
4  DIMENSIONS, CLEARANCES ............................................................................................................................................... 9
4.1 - AR05 039 and 045-078, units with and without hydronic module ..............................................................................................................9
4.2 - AR05 080-160, units with and without hydronic module ............................................................................................................................ 10
5  PHYSICAL DATA, AR05 UNITS ...........................................................................................................................................11
6  ELECTRICAL DATA, AR05 UNITS .......................................................................................................................................11
9  APPLICATION DATA ...........................................................................................................................................................13
9.1 - Operating range, standard units - cooling mode ............................................................................................................................................ 13
9.2 - Operating range, standard units - heating mode ........................................................................................................................................... 13
9.3 - Water heat exchanger water fl ow rate ................................................................................................................................................................ 13
9.4 - Minimum water fl ow rate ........................................................................................................................................................................................ 13
9.5 - Maximum water heat exchanger water fl ow rate ........................................................................................................................................... 13
9.6 - Water loop volume ..................................................................................................................................................................................................... 13
10  ELECTRICAL CONNECTION .............................................................................................................................................14
10.1 - Control box ................................................................................................................................................................................................................. 14
10.2 - Power supply ............................................................................................................................................................................................................. 14
10.3 - Voltage phase imbalance (%) ............................................................................................................................................................................... 14
10.4 - Recommended wire sections............................................................................................................................................................................... 14
10.5 - Field control wiring .................................................................................................................................................................................................. 15
10.6 - Power supply ............................................................................................................................................................................................................. 15
11  WATER CONNECTIONS ....................................................................................................................................................15
11.1 - Operating precautions and recommendations ............................................................................................................................................. 15
11.2 - Hydronic connections ............................................................................................................................................................................................ 16
11.3 - Frost protection ........................................................................................................................................................................................................ 16
11.4 - Protection against cavitation (option 116) ..................................................................................................................................................... 16
12  NOMINAL SYSTEM WATER FLOW CONTROL .................................................................................................................18
12.1 - Units without hydronic module .......................................................................................................................................................................... 18
12.2 - Units with hydronic module and fi xed-speed pump ................................................................................................................................. 19
12.3 - Units with hydronic module and variable-speed pump - pressure diff erential control ................................................................. 19
12.4 - Units with hydronic module and variable-speed pump - temperature diff erence control .......................................................... 20
12.5 - Plate heat exchanger pressure drop (including internal piping) - units without hydronic module .......................................... 22
12.6 - Pump pressure/fl ow rate curve – units with hydronic module (fi xed-speed or variable-speed pump, 50 Hz) ..................... 22
12.7 - Available static system pressure - units with hydronic module (fi xed-speed or variable-speed pump, 50 Hz) .................... 23
13  STARTUP ..........................................................................................................................................................................24
13.1 - Preliminary checks ................................................................................................................................................................................................... 24
13.2 - Actual start-up ........................................................................................................................................................................................................... 24
13.3 - Operation of two units in master/slave mode ............................................................................................................................................... 24
13.4 - Supplementary electric resistance heaters ..................................................................................................................................................... 25
14  MAJOR SYSTEM COMPONENTS .....................................................................................................................................26