Viessmann Vitosol-F Installation Instructions For Contractors page 13

Connecting the collectors
Sensor well set
Fig. 14
Note
The collector temperature sensor is part of the stand-
ard delivery of the solar control unit.
Installation information
Lubricate O-ring seals only with the special valve
■
grease provided.
Initially tighten the union nut by hand, then tighten
■
with an open-ended spanner by a further
Never use annealed copper pipes with locking ring
■
fittings.
1.
Fig. 15
Return
X
Flow
Y
(cont.)
turn.
¾
2.
8.
X
3.
6.
7.
8.
4.
Y
5.
9.
13