System Version 3 - Viessmann VITODENS 222-F Service Instructions Manual

Vitodens 222-F B2TA 19 and 35 Service
Installation Examples
Legend
1 Vitodens 222-F
2 Outside temperature sensor
3 Heating circuit without mixing valve A1
(heating circuit 1)
4 Heating circuit with mixing valve M2 (heating circuit 2)
5 Temperature limiter for limiting the maximum
temperature of underfloor heating systems
6 Supply temperature sensor M2
7 Heating circuit pump M2
8 Extension kit for one heating circuit with
mixing valve M2
(continued)
Outdoor Reset Programming Unit

System version 3

One heating circuit without mixing valve A1 and one
heating circuit with mixing valve M2
Function/system components
Operation with LPG
System only with one heating
circuit with mixing valve with
extension kit for mixing valve
(without unregulated heating
circuit) with DHW heating
System with DHW circulation
pump:
DHW circulation pump connection
at extension AM1, terminal A2
Note: The flow rate of the heating circuit without mixing
valve must be at least 30% greater than the flow
rate of the heating circuit with mixing valve.
Code
Adjust Factory set
condition
82:1 82:0
00:4 00:6
- 34:0
35