Viessmann OpenTherm Installation And Service Instructions For Contractors

16
Heating circuit pump 400 V~
LN
L1 L2 L3 N PE
A
B
3~
M
sÖ
A
Heating circuit pump
B
Contactor
sÖ A/B
Plug on extension kit
Specification for switching the con-
tactor:
Rated voltage 230 V∼
Rated current 2(1) A
Recommended
connecting cable
H05VV-F3G
0.75 mm
2
or
H05RN-F3G
0.75 mm
2
Installation sequence
Connecting the heating circuit pump
(cont.)
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Viessmann OpenTherm Specifications

General

Brand	Viessmann
Model	OpenTherm
Category	Temperature Controller
Language	English