Danfoss BW10 020-090 Installation, Operation And Maintenance Instructions page 3

9.2 - Available static system pressure (fixed or variable-speed high-pressure pumps, units with hydronic module) ..................... 27
9.3 - Available static system pressure (fixed or variable-speed low-pressure pumps, units with hydronic module) .....................................28
9.4 - Available static pressure for pumps only (units with hydronic modules) .............................................................................................. 29
10 - BW10 UNIT OPERATION WITH SPECIFIC HEATING CONTROL (OPTION 153) ..............................................................31
10.1 - Operating principle ................................................................................................................................................................................................. 31
11 - START-UP ..........................................................................................................................................................................31
11.1 - Preliminary checks ................................................................................................................................................................................................... 31
11.2 - Actual start-up ........................................................................................................................................................................................................... 31
11.3 - Operation of two units in master/slave mode (option 58) ........................................................................................................................ 32
12.4 - Parallel or serial connection of two BW10 units ............................................................................................................................................ 32
12 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA ..............................................................................................32
12.1 - Compressors .............................................................................................................................................................................................................. 32
12.2 - Lubricant ..................................................................................................................................................................................................................... 32
12.3 - Evaporators and condensers ................................................................................................................................................................................ 32
12.4 - Electronic expansion valve (EXV) ....................................................................................................................................................................... 33
12.5 - Refrigerant .................................................................................................................................................................................................................. 33
12.6 - High-pressure switch and high-pressure sensor .......................................................................................................................................... 33
12.7 - High and low-pressure side safety valves ........................................................................................................................................................ 33
12.8 - Moisture indicator .................................................................................................................................................................................................... 33
12.9 - Filter drier in the refrigerant circuit .................................................................................................................................................................... 34
12.10 - Fixed-speed pump................................................................................................................................................................................................. 34
12.11 - Variable-speed pump ........................................................................................................................................................................................... 34
12.12 - Evaporator and condenser pump suction filter .......................................................................................................................................... 34
12.13 - Connection sleeves ............................................................................................................................................................................................... 34
12.14 - Option 272: High-temperature water production with glycol solution ............................................................................................... 34
13 - OPTIONS ...........................................................................................................................................................................35
14 - MAINTENANCE .................................................................................................................................................................36
14.1 - Soldering and welding ........................................................................................................................................................................................... 36
14.2 - General unit maintenance .................................................................................................................................................................................... 36
14.3 - Refrigerant undercharge ....................................................................................................................................................................................... 36
14.4 - Refrigerant guidelines ........................................................................................................................................................................................... 36
14.5 - Leak detection ........................................................................................................................................................................................................... 37
14.6 - Evacuation ................................................................................................................................................................................................................. 37
14.7 - Recharging liquid refrigerant ............................................................................................................................................................................... 37
14.8 - Characteristics of R-410A ....................................................................................................................................................................................... 37
14.9 - Electrical maintenance ........................................................................................................................................................................................... 38
14.10 - Tightening torques for the main electrical connections ......................................................................................................................... 38
14.11 - Tightening torques for the main bolts and screws .................................................................................................................................... 38
14.12 - Compressors ............................................................................................................................................................................................................ 38
14.13 - Evaporator and condenser maintenance ...................................................................................................................................................... 38
14.14 - Corrosion check ...................................................................................................................................................................................................... 38
15 - MAINTENANCE PROGRAM .............................................................................................................................................39
15.1 - Maintenance schedule ........................................................................................................................................................................................... 39
15.2 - Description of the maintenance operations .................................................................................................................................................. 39
16 - START-UP CKECKLIST FOR BW10 UNITS (USE FOR JOB FILE) .....................................................................................40
The illustrations in this document are for illustrative purposes only and not part of any offer for sale or contract.
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