6
en
3.4
Emptying the solar thermal system
WARNING!
Risk of injury. The discharged fluid
can have very high temperatures.
Place the collection container so
that people standing near by are
not endangered when the solar
thermal system is being emptied.
•
Open the non-return valves in the ball valves in
flow and return by turning the ball valves to a 45°
position with an open-ended spanner.
•
Place a temperature-resistant collection container
under the drain ball valve at the lowest point of
the solar thermal system.
•
Open the drain ball valve at the lowest point of the
solar thermal system.
•
Open the bleeding devices at the highest point of
the solar thermal system, where available.
•
Dispose of the solar fluid in observance of local
regulations.
4
Flowmeter
The Flowmeter is for measurement and display of the
flow rate of 1-20 l/min. In order to guarantee the flaw-
less function of the measuring device the system must
be flushed and free from foreign substances.
Left scale:
Upper edge of
the propeller
Right scale:
Lower edge of
the propeller
5
Air separator
The air separator (manual bled valve) is for bleeding
the solar fluid in the solar thermal system. The air
precipitated from the solar fluid gathers in the upper
area of the manual bleed valve (see diagram) and can,
if required, be discharged at the bleeding valve. To gu-
arantee faultless bleeding of the collector circuit the
flow rate in the flow must be at least 0.3 m/s.
Check the system pressure after bleeding and if ne-
cessary increase it to the specified operating pressure.
WARNING!
Risk of injury caused by very high
temperatures. During bleeding the
escaping air and solar fluid can re-
ach temperatures of over 100 °C.
Bleeding the solar thermal system directly
after commissioning.
At first you should bleed the solar thermal system
daily and then weekly or monthly, depending on the
volume of discharged air, in order to achieve optimal
efficiency.
Note
Bleed the solar thermal system half-yearly
with the manual bleed valve to achieve op-
timal efficiency.
6
Connection
WARNING!
Always disconnect the control-
ler from power supply before
opening the housing!
The controller is already integrated in the station and
ready to plug in. In the case of maintenance or service
work, the controller is to be taken out from the stati-
on. Please pay attention to the followong steps:
•
switch off the system, disconnect plug from the
mains
•
remove the front half of the insulation
•
unscrew the cross-recessed screw off the front
cover and remove it by pulling it upwards
•
unscrew the lower cross-recessed screw, push the
controller upwards and remove it
Mounting of the controller has to be carried out in
reverse order.
7
Accessories for the station
For installation screw connections are required, which
are not included in the scope of delivery. Self-sealing
double nipples, solder nipples or clamp-ring connec-
tions can be used. For further information, please see
product catalogue.
Содержание FlowSol C
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