Commissioning The System; Checking The Switching Function Of The Solar Control Unit; Checking And Replacing The Heat Transfer Medium If Required - 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
Vitosol 200-F, type 5DIA
Throughput 5 to 6 l/min

Commissioning the system

Close the air vent valve.

Checking the switching function of the solar control unit

Solar control unit installation and
service instructions

Checking and replacing the heat transfer medium if required

■ The heat transfer medium provided is
a liquid based on 1,2-propylene glycol
with a pH value of 9.0 to 10.5 and frost
protection down to -28 °C.
■ Have the condition of the medium
checked as part of the annual service
of the solar thermal system by the
heating contractor.
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
Observe operating instructions of
installed components.
■ The pH value and frost protection tem-
perature can be checked with the
solar service case (accessories).
(cont.)
Flow rate in l/min
Solar service case operating
instructions
2
)
3.5
4
4.5
5
5.5
6.5
7
7.5
8
8.5
9
10.5
11.5
11