11
1.
Connect the pressure hose (return hose) of flushing
and filling facility
N
to drain valve
G
.
2.
Connect the fill hose of flushing and filling facility
N
to fill valve
K
.
3.
Close shut-off valve (flow)
B
: Turn the ball valve
(thermometer) clockwise through 90°.
4.
Open shut-off valve (return)
O
: Turn the ball valve
(thermometer) to the 0° vertical position.
5.
Open drain valve
G
and fill valve
K
.
6.
Start the fill pump of flushing and filling facility
N
.
A pressure greater than 1 bar will open the non-
return valve.
System start-up
Close the air vent valve.
Note
With a Solar-Divicon, do this at air separator
E
.
Observe operating instructions of installed com-
ponents.
Checking the switching function of the solar control unit
Solar control unit installation and service instruc-
tions
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.
■
The pH value and frost protection temperature can
be checked with the
solar service case
(accesso-
ries).
Solar service case operating instructions
In some cases the manufacturer of the heat transfer
medium can carry out a laboratory test of the
medium, subject to arrangement.
■
Manufacturer:
TYFOROP CHEMIE GmbH
Anton-Rée-Weg 7
D - 20537 Hamburg
Email: [email protected]
Internet: www.tyfo.de
1.
Check the pH value of the heat transfer medium
using the pH strip in the solar service case.
The colour of the pH strip indicates the approximate
value. If the value is below 7.5, replace the heat
transfer medium.
Information on replacing the heat transfer
medium
The heat transfer medium can be mixed with Tyfo-
cor G-LS.
Never mix with water or third party media.
2.
Check the frost protection temperature of the heat
transfer medium with an antifreeze tester or the
manual refractometer in the solar service case.
Commissioning, inspection, maintenance
Performing a test flush
(cont.)
5675 801 GB
