18
Solarbayer GmbH
MOUNTING INSTRUCTION
High capcity collector PremiumPlan
Filling with heat transfer fluid
Flush
The solar system has to be flushed
with the ready mixed heat transfer
fluid
Course of action:
- check if all screwed connections
are tightened
- check the primary pressure of the
solar expansion vessel at zero
pressure, if necessary adjust to
2,5 bar
- switch the solar station’s ball val-
ves of flow and return to 45° - that
will open the gravity brakes
- close hex key of flow regulator
- connect the hoses of the filling
station with the corresponding
valves
- open any other valve (if existing)
- adjust the inversion valve (if exis-
ting) to “manual”; convert the exits
one after the other during the
flushing
- the solar system can now be flus-
hed in both directions; keep an
eye on the manometer
-
don’t
flush/fill the solar system
when it is under direct exposure
to light
- the flushing has been successful
when the fluid returns clean and
without air bubbles into the con-
tainer
- operating pressure has to be at
least 3 bar
- close the filling and draining val-
ves and completely open the flow
regulator
- open the ball valves and put the
switching valves (if existing)
- the solar system is now ready for
operation
filling
and
draining
valve
connect the filling station here to fill
and flush the system
Due to their construction the collectors can afterwards never be fully emptied again(vapours and
freezing might lead to damages). It is therefore necessary to rinse the collectors with a glycol
mixture. Our collectors are only to be used with Tyfocor L/LS
Mixing of the heat transfer fluid
You have a protection against frost up to a -24°C when mixing ratio
is 60/40 (60 parts water and 40 parts propylene glycol). A further
decrease of temperature leads to a formation of ice without any ex-
plosive effect. In locations with a risk of frost under -30°C a mixing
ratio of 50/50 is recommended.
You definitely have to mix the fluid in a separate container be-
fore filling the system
CAUTION: The collectors have to be filled with heat-transfer
fluid even if the outdoor temperature is over the freezing
point.
Characteristic data of Tyfocor L
boiling point: 187°C
pour point: <-60°C
flaming point: ~368°C
pH (conc.).: 7,7-8,7 (1:1 – H
²
O/glykol)
