Viessmann BW 301.B06, Installation And Service Instructions Manual

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1. Information Disposal of packaging ............................................................................ 6
Symbols ................................................................................................. 6
Intended use .......................................................................................... 6
Product information ................................................................................ 7
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Type BW 301.B and BWC 301.B ........................................................ 7
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Type BWS 301.B (heat pump stage 2) ............................................... 7
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System examples ............................................................................... 8
2. Preparing for installation Designations in the system examples ................................................... 9
Primary circuit, type BW/BWC 301.B ..................................................... 10
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With water/water heat pump conversion kit: 1 primary pump ............. 10
Primary circuit, type BW 301.B + BWS 301.B (2-stage) ........................ 12
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With water/water heat pump conversion kit: 2 primary pumps ........... 12
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With water/water heat pump conversion kit: 1 common primary
pump ................................................................................................... 14
Requirements for on-site connections ................................................... 17
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1-stage (type BW 301.B, BWC 301.B) ............................................... 17
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2-stage (type BW 301.B + BWS 301.B) .............................................. 18
Siting and transport requirements .......................................................... 19
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Transport ............................................................................................ 19
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Installation room requirements ........................................................... 19
3. Installation sequence Positioning the heat pump ..................................................................... 21
Removing the top panel ......................................................................... 22
Making the hydraulic connections .......................................................... 22
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Connecting the primary circuit ............................................................ 22
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Connecting the secondary circuit ....................................................... 23
Electrical connection .............................................................................. 24
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Preparing the electrical connections ................................................... 24
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Installing the programming unit (type BW 301.B and BWC 301.B) .... 25
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Routing cables to the wiring chamber ................................................ 26
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Making the electrical connection of heat pump stage 1 (type
BW 301.B) and stage 2 (type BWS 301.B) ......................................... 27
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Overview of the electrical connections of the heat pump control unit
(type BW/BWC 301.B) ........................................................................ 28
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Main PCB (230 V~ components) ........................................................ 28
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Expansion PCB on main PCB (230 V~ components) ......................... 32
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Cross connect PCB (signal and safety connections) .......................... 36
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Controller and sensor PCB (sensors) ................................................. 38
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Connection of primary circuit flow/return temperature sensor, 2-
stage heat pump ................................................................................. 40
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Swimming pool heating ...................................................................... 40
Power supply ......................................................................................... 41
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Heat pump control unit power supply 230 V~ ..................................... 42
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Compressor power supply 400 V~ ..................................................... 42
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Power supply with power-OFF: Without on-site load disconnect ....... 43
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Power supply with power-OFF: With on-site load disconnect ............ 44
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Mains power supply in conjunction with on-site power consumption . 47
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Smart Grid .......................................................................................... 47
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Phase monitor (if installed) ................................................................. 49
Make connections at terminals X3.8/X3.9 ............................................. 50
Closing the heat pump ........................................................................... 50
Checking the diaphragm grommets ....................................................... 51
4. Commissioning, inspec-
tion, maintenance
Steps - commissioning, inspection and maintenance ............................ 52
5. Maintenance Overview of wiring chamber .................................................................. 67
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Type BW/BWC 301.B ......................................................................... 67
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Type BWS 301.B ................................................................................ 68
Index
Index
5516461