External Connection To Plug X12 - Viessmann Vitotronic 200 KW2 Installation And Service Instructions Manual

Installation

External connection to plug X12

!
Please note
'Live' contacts lead to short circuits or phase failure. The external
connections must be zero volt.
A
1 2
X12
A External start
(zero volt contact)
Rated voltage: 230 V~
Rated current: 6 A ~
Recommended
connecting
cable: H05VV F3G 0.75 mm
18
External burner start (stage 1)
Connect the zero volt contact. If the
contact is closed, the first burner
stage is started, and the boiler water
temperature is regulated by the
control thermostat.
2