Viessmann OpenTherm Installation And Service Instructions For Contractors

17
L?
4 3 2 1
96
A
B
C
D
E
F
X12
X22
X3
1
2
3
4 5 6
4
6
5
4
6
5
4
321
A
Boiler control unit
B
Terminals on the control unit
C
Mixer extension kit
D
Room temperature controller for
heating circuit without mixer
E
Room temperature controller for
heating circuit with mixer
F
Jumper
1. Connect the heat generator control
unit and the room temperature con-
troller.
2.
Remove jumper F.
Installation sequence
OpenTherm connections
5837721
Installation

Viessmann OpenTherm Specifications

General

Brand	Viessmann
Model	OpenTherm
Category	Temperature Controller
Language	English