Table Of Contents - Danfoss BW10 020-090 Installation, Operation And Maintenance Instructions

Operation instructions manual (24 pages)

Table of Contents

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 ........................................................................................................................................................ 7

2.1 - Check equipment received ........................................................................................................................................................................................7

2.2 - Moving and siting the unit .........................................................................................................................................................................................7

3 - DIMENSIONS, CLEARANCES ............................................................................................................................................... 9

3.1 - BW10 020-045 - standard unit...................................................................................................................................................................................9

3.2 - BW10 020-045 - unit with top connections (option 274) ................................................................................................................................9

3.3 - BW10 020-045 - unit with evaporator hydronic module (option 116) .................................................................................................... 10

3.4 - BW10 020-045 - unit with condenser hydronic module (option 270) ..................................................................................................... 10

3.5 - BW10 020-045 - unit with evaporator/condenser hydronic modules (options 116 + 270) ............................................................. 10

3.6 - BW10 020-045 - unit with hydronic module and top connections (options 116 + 274 - 270 + 274 - 116 + 270 + 274) ....... 11

3.7 - BW10 020-045 - stackable unit (option 273) ..................................................................................................................................................... 11

3.8 - BW10 050-090 - standard unit................................................................................................................................................................................ 12

3.9 - BW10 050-090 - unit with top connections (option 274) ............................................................................................................................. 12

3.10 - BW10 050-090 - unit with evaporator hydronic module (option 116) .................................................................................................. 13

3.11 - BW10 050-090 - unit with condenser hydronic module (option 270) ................................................................................................... 13

3.12 - BW10 050-090 - unit with evaporator/condenser hydronic modules (options 116 + 270) ........................................................... 13

3.13 - BW10 050-090 - unit with hydronic module and top connections (options 116 + 274 - 270 + 274 - 116 + 270 + 274) ..... 14

3.14 - BW10 050-090 - stackable unit (option 273) .................................................................................................................................................. 14

4 - PHYSICAL AND ELECTRICAL DATA BW10 ........................................................................................................................15

4.1 - Physical data BW10 .................................................................................................................................................................................................... 15

4.3 - Physical data BW10 units with hydronic module ........................................................................................................................................... 16

4.4 - Electrical data BW10 ................................................................................................................................................................................................. 16

4.5 - Short-circuit stability current (TN system*) - standard unit (with main disconnect switch) ........................................................... 16

4.6 - Electrical data, optional hydronic module ......................................................................................................................................................... 17

4.7 - Compressor usage and electrical data table ..................................................................................................................................................... 18

5 - APPLICATION DATA ...........................................................................................................................................................18

5.1 - Operating limits ........................................................................................................................................................................................................... 18

5.2 - Operating range BW10 ............................................................................................................................................................................................. 19

5.4 - Minimum chilled water flow ................................................................................................................................................................................... 19

5.5 - Maximum chilled water flow .................................................................................................................................................................................. 19

5.6 - Variable flow ................................................................................................................................................................................................................. 19

5.7 - Water flow rate ............................................................................................................................................................................................................. 19

5.8 - Minimum water volume ........................................................................................................................................................................................... 19

5.9 - Maximum water loop volume (evaporator and condenser side) .............................................................................................................. 20

5.10 - Expansion tank .......................................................................................................................................................................................................... 20

5.11 - Protection against cavitation (option 116) ..................................................................................................................................................... 20

5.12 - Plate heat exchanger pressure drop (includes internal piping) .............................................................................................................. 21

6 - ELECTRICAL CONNECTION ...............................................................................................................................................22

6.1 - Electrical connections, control box BW10 ......................................................................................................................................................... 22

6.2 - Power supply ................................................................................................................................................................................................................ 22

6.3 - Voltage phase imbalance (%) ................................................................................................................................................................................. 22

6.4 - Recommended wire sections ................................................................................................................................................................................. 22

7 - WATER CONNECTIONS ......................................................................................................................................................23

7.1 - Operating precautions .............................................................................................................................................................................................. 23

7.2 - Water connections ...................................................................................................................................................................................................... 24

7.3 - Frost protection ........................................................................................................................................................................................................... 24

7.4 - Flow switch (units without hydronic module) ................................................................................................................................................. 24

8 - NOMINAL WATER FLOW CONTROL WITH FIXED-SPEED PUMP ....................................................................................25

8.1 - General ........................................................................................................................................................................................................................... 25

8.2 - Water flow control procedure ............................................................................................................................................................................... 25

9 - NOMINAL WATER FLOW CONTROL WITH VARIABLE-SPEED PUMP ..................................................................................27

9.1 - Pump flow/pressure curve ...................................................................................................................................................................................... 27