Vitodens 222-F, B2TB 19, 35, 68, 125 Installation
5
Page
Table of Contents
5461 889 - 16
Boiler Connections
(continued)
Control Connections
Additional Information
Safety Connections
...................................................29
Low
water
cut-off..................................................29
Waterside Flow
........................................................30
Waterside
flow
(primary circuit)...............................30
Installation
Examples
.................................................31
System Layout 1-8
...................................................32
Alternative Connection
............................................40
Wiring Diagram
........................................................41
Electrical Connections
..............................................43
Power
supply connection of accessories...................43
Connection of accessories.......................................43
Accessories Connection
............................................44
Connection of accessories.......................................44
Low
voltage
plug
X3..............................................44
Accessing the X3 Plug
..............................................45
Connecting the Low-loss Header Sensor
......................45
Connecting the Outdoor Temperature Sensor
..............46
LON Module
..........................................................47
Installing the LON module to the boiler
control
board.........................................................47
Connecting
the LON module cable...........................47
Routing the Connecting Cables
...................................48
External 0-10 Volt Signal Connection
.........................49
Connecting a 24 VAC Thermostat
..............................50
Zone Circuit Thermostat Connections
.........................51
Zone Circuit Pump Connection
...................................52
Connection to boiler ............................................ 52
Connection at AMI (accessory) ..............................52
Accessory Kit
..........................................................53
Closing the Boiler
....................................................53
Closing the External Accessory Connection Box
............54
Reinstalling the Front Enclosure Panel
..........................55
Fitting the front panels...........................................55
Technical Data
.........................................................56
Installation Fittings
....................................................58
Lighting and Operating Instructions
.............................59