Installation Examples; System Version 1 - 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)
Outdoor Reset Programming Unit
Matching the control unit to the heating system
The control unit must be matched to the equipment
level of the system. Various system components are
recognized automatically by the control unit and the
relevant codes are adjusted automatically.
- For the selection of an appropriate type, see the
following diagrams.
- For coding steps, starting on page 42.

System version 1

One heating circuit without mixing valve A1
Function/system components
Operation with LPG
System with DHW recirculation
pump:
DHW recirculation pump
connection at extension AM1,
terminal A2
Code
Adjust Factory set
condition
82:1 82:0
-- 34:0
33