5
Page
Table of Contents
Vitodens 200-W B2HB 19 to 35, 68 to 125 Installation
Boiler Connections
(continued)
Control Connections
Additional Information
Safety Connections..............................
.....................29
Installing boiler safety devices.................................29
Low
water
cut-off..................................................29
Waterside Flow
........................................................30
Waterside
flow
(primary circuit)...............................30
Heating Circuit / Boiler Pumps
....................................31
Low-Loss Header Application
.....................................31
Installation
Examples
.................................................32
General.................................................................32
Clearances............................................................32
System Layout 1-9
...................................................33
Alternative DHW Connection
....................................42
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.................
................................44
Overview of Electrical Connections,
Models B2HB 19, 26, 35, 68, 94 and 125
...................45
Electrical Connections.................
.............................47
Power
supply connection of accessories...................47
Connection of accessories.......................................47
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
Connecting a 24VAC Thermostat......
.........................51
Thermostat Connection
...........................................52
Pump Connection
...................................................53
LON Module............
..............................................54
Installing the LON module to the boiler
control
board........................................................54
Connecting
the LON module cable...........................54
Accessory Kit
..........................................................55
Accessory kit connections for heating circuit
with
mixing
valve..................................................55
Closing the Control Unit
............................................55
Closing the control cover...........................................55
Closing the External Accessory Connection Box
.........56
Reinstalling the Front Enclosure Panel
..........................57
Instructing the system user........................................57
Technical Data
.........................................................58
Installation Fittings
....................................................60
Lighting and Operating Instructions
.............................61
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