Viessmann B2HB 45, Installation Instructions Manual

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5
Page
Table of Contents
Vitodens 200-W B2HB 45, 57 Installation
5680 493 - 05
Boiler Connections
(continued)
Control Connections
Additional Information
Safety Connections and Pressure Testing .....................29
Installing boiler safety devices.................................29
Low water cut-off..................................................30
Performing a boiler pressure test.............................30
Waterside Flow ........................................................30
Waterside flow (primary circuit)...............................30
Installation Examples
.................................................32
General.................................................................32
Clearances............................................................32
System Layout 1-9 ...................................................33
Alternative DHW Connection ....................................42
Boiler in Heating/Cooling ............................................43
Boiler in heating/cooling application..........................43
Boiler with Low Water Cut-off ..................................44
Boiler with low water cut-off (remote-mounted
field supplied)........................................................44
Venting Connection
.................................................42
Electrical Connections
..............................................43
Power supply connection of accessories...................43
Connection of accessories.......................................43
Overview of Electrical Connections,
Models B2HB 45 and 57.. .........................................44
Accessing the X3 Plug ..............................................48
Connecting the Low-loss Header Sensor ......................48
Connecting the Outdoor Temperature Sensor ..............49
External 0-10 Volt Signal Connection .........................50
24 VAC Thermostat Connection ...............................51
LON Module ..........................................................52
Installing the LON module to the boiler
control board.........................................................52
Connecting the LON module cable...........................52
Accessory Kit ..........................................................53
Accessory kit connections for heating circuit
with mixing valve..................................................53
Closing the Control Unit ............................................53
Closing the control cover .......................................52
Closing the External Accessory Connection Box ............53
Reinstalling the Front Enclosure Panel ..........................55
Instructing the system user.....................................55
Technical Data .........................................................57
Installation Fittings ....................................................59
Lighting and Operating Instructions .............................60