Checking The Switching Function Of The Solar Control Unit; Shutting Down The System - Viessmann Vitosol-F Service Instructions Manual

Further details regarding the individual steps
High-flow operation, 40 l/(h·m
Number of Flow rate in l/min
collectors
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Checking the switching function of the solar control unit

Solar control unit installation and
service instructions

Shutting down the system

!
Please note
To prevent equipment damage,
cover the collectors before com-
mencing any work on the compo-
nents of the solar thermal sys-
tem.
Mixing the heat transfer medium
with water reduces the frost and
corrosion protection. Only flush
the system with the specified
heat transfer medium. Never mix
"Tyfocor LS" with other heat
transfer media.
Commissioning, inspection, maintenance
2
) Low-flow operation, 15 l/(h·m
Number of
collectors
3 6
4.5 7
6 8
7.5 9
9.5 10
10.5 11
12.5 12
14 13
15.5 14
17 15
18.5 16
20 18
21.5 20
23.5
Electrically isolate the system (e.g. at a
separate MCB/fuse or the main isolator)
and safeguard against unauthorised
reconnection.
(cont.)
2
)
Flow rate in l/min
3.5
4
4.5
5
5.5
6.5
7
7.5
8
8.5
9
10.5
11.5
9