Table Of Contents - Viessmann Vitocal 300-G Series Installation And Service Instructions Manual

Index
Index
1. Information
2. Preparing for installation
3. Installation sequence
4. Commissioning, inspec-
tion, maintenance
5. Maintenance
4
Disposal of packaging ............................................................................
Symbols .................................................................................................
Intended use ..........................................................................................
Product information ................................................................................
Type BW 301.A ...................................................................................
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Type BWS 301.A (heat pump stage 2) ...............................................
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System examples ...............................................................................
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Requirements regarding on-site connections ........................................
1-stage: Type BW 301.A .....................................................................
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2-stage: Type BW 301.A + BWS 301.A .............................................. 10
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Siting and transport requirements .......................................................... 11
Transport ............................................................................................ 11
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Installation room requirements ........................................................... 11
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Positioning the heat pump ..................................................................... 13
Levelling the heat pump ..................................................................... 13
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Removing the transport brackets ........................................................ 13
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Removing the top panel ...................................................................... 14
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Making the hydraulic connections .......................................................... 15
Connecting the primary circuit ............................................................ 15
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Connecting the secondary circuit ....................................................... 16
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Electrical connection .............................................................................. 16
Preparing the electrical connections ................................................... 16
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Installing the programming unit (type BW 301.A) ............................... 17
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Routing cables to the wiring chamber ................................................ 18
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Make the electrical connection of heat pump stage 1 (type
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BW 301.A) and stage 2 (type BWS 301.A) ......................................... 20
Overview of electrical connections in the heat pump control unit
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(type BW 301.A) ................................................................................. 21
Main PCB (function components 230 V~) .......................................... 21
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Expansion PCB on main PCB (230 V~ components) ......................... 25
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Cross connect PCB (message and safety connections) .................... 28
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Controller and sensor PCB (sensors) ................................................. 31
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Connecting the primary circuit flow/return temperature sensor, 2-
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stage heat pump ................................................................................. 32
Swimming pool heating ...................................................................... 33
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Power supply ......................................................................................... 33
Heat pump control unit power supply 230 V~ ..................................... 34
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Compressor power supply (400 V~) ................................................... 35
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Power supply with power-OFF: Without on-site load disconnect ....... 35
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Power supply with power-OFF: With on-site load disconnect ............ 37
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Mains power supply in conjunction with on-site power consumption . 40
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Smart Grid .......................................................................................... 40
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Phase monitor (if installed) ................................................................. 42
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Make connections at terminals X3.8/X3.9 ............................................. 43
Closing the heat pump ........................................................................... 43
Checking the diaphragm grommets ....................................................... 46
Steps - commissioning, inspection and maintenance ............................ 47
Overview of wiring chamber .................................................................. 62
Type BW 301.A ................................................................................... 62
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Type BWS 301.A ................................................................................ 63
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Opening the casing door ........................................................................ 63
Overview of internal components .......................................................... 64
Draining the heat pump on the primary/secondary side ........................ 64
Checking the sensors ............................................................................ 64
Viessmann NTC 10 k
Ω
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(blue marking) ............................................... 66
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