System Version 5 - Viessmann VITODENS 222-F Service Instructions Manual

Vitodens 222-F B2TB 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 pump A1
5 Heating circuit with mixing valve M2 (heating circuit 2)
6 Supply temperature sensor M2
7 Heating circuit pump M2
8 Extension kit for one heating circuit with
mixing valve M2
9 Heating circuit with mixing valve M3 (heating circuit 3)
qP Temperature limiter for limiting the maximum
temperature of underfloor heating systems
qQ Supply temperature sensor M3
qW Heating circuit pump M3
qE Extension kit for one heating circuit with
mixing valve M3
qR Low loss header
qT Supply temperature sensor, low loss header
(continued)
Outdoor Reset Programming Unit

System version 5

One heating circuit without mixing valve, one heating
circuit with mixing valve M2 (with extension kit), one
heating circuit with mixing valve M3 (with extension kit)
and low loss header (with/without DHW heating)
Function/system components
Operation with LPG
System only with two heating
circuits with mixing valve with
extension kit for mixing valve
(without unregulated heating
circuit) with DHW heating
Heating circuit pump A1
connection at extension AM1,
terminal A1
DHW recirculation pump
connection at extension AM1,
terminal A2
System with low loss header
External heating circuit pump,
heating circuit A1
Code
Adjust Factory set
condition
82:1 82:0
00:8 00:10
-- 33:1
-- 34:0
04:0 04:1
53:2 53:1
37