Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 49

Terminal connections
Outside temperature sensor
A
B
A Outside temperature sensor
B Junction box
(cont.)
1 2 3 4
ATS B42/
B10
Installation sequence
Installation:
■ North or north-westerly wall, 2 to
2.5 m above ground level; in multi
storey buildings, in the upper half of
the second floor
■ Not above windows, doors or vents
■ Not immediately below balconies or
gutters
■ Never render over
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