Performing A Test Flush; Commissioning The System; Checking The Switching Function Of The Solar Control Unit - Viessmann VITOSOL-F Service Instructions Manual

Determining the flow rate and adjusting it if...
High-flow operation, specific flow rate 40 l/(h
Number of collectors
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Performing a test flush

For components, see diagram on page 9
1. Connect the pressure hose (return hose) of flush-
ing and filling facility N
2. Connect the fill hose of flushing and filling
facility to fill valve
N K
3. Close shut-off valve (flow)
(thermometer) clockwise through 90°.

Commissioning the system

Close the air vent valve.
Note
With a Solar-Divicon, do this at air separator

Checking the switching function of the solar control unit

Solar control unit installation and service instruc-
tions
2
m
·
Flow rate in l/min
10.5
12.5
15.5
18.5
21.5
23.5
to drain valve G .
.
B : Turn the ball valve
.
E
Commissioning, inspection, maintenance
(cont.)
) Low-flow operation, specific flow rate 25 l/(h
Number of collectors
3 6
4.5 7
6 8
7.5 9
9.5 10
11
12
14 13
14
17 15
16
20 18
20
4. Open shut-off valve (return)
(thermometer) to the 0° vertical position.
5. Open drain valve
6. Start the fill pump of flushing and filling facility
A pressure greater than 1 bar will open the non-
return valve.
Observe operating instructions of installed com-
ponents.
Flow rate in l/min
: Turn the ball valve
O
and fill valve .
G K
2
m )
·
5.5
6.5
7.5
8.5
9.5
10.5
11.5
12.5
13.5
14
15
17
19
N .
11