elco AURON B 15 DF, Руководство по эксплуатации

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51
Start-up
Cleaning
Filling and flushing the system
Filling and flushing the system
The system shall not be filled and start-
ed up until there is a way to consume
the heat.
If the pipework of an old solar energy
plant is to be used and this is very dirty,
this must be flushed through before-
hand with the cleaning agent Antifrogen
SOL Clean. For the most effective
cleaning it is recommended that Anti-
frogen SOL Clean is used undiluted.
•
Open all shut-off valves and vents.
Make especially sure that the vents
on the collector connections are open
and if the system has an air trap,
open its vent as well.
•
Use only Antifrogen SOL HT as a
heat transfer fluid. Water shall not be
used, even in regions where there is
no risk of freezing. It does not provide
any corrosion protection.
•
Antifrogen SOL HT is completely pre-
mixed and ready to use. It shall not
be mixed with water or other heat
transfer fluids.
•
Observe and heed all instructions on
the safety bulletin.
•
Use a pressure pump to fill the sys-
tem via the fill and drain valve. Close
the shut-off and vent valves one by
one as soon as fluid starts to escape.
Collect the fluid escaping from the
drain valve in a separate container
until you see heat transfer fluid com-
ing out. This ensures that any water
that was still in the collector is drained
from the system. Stop filling and con-
nect the pressure pump to the drain
valve.
•
Flush the system for two hours at 3.5
bar, until no air remains in the sys-
tem.
•
The last step in the filling procedure is
to set the system pressure and slowly
close the valves.
System pressure:
The system pressure is a function of
the vertical height of the system and
the precharge pressure in the expan-
sion tank (see table on page 13).
•
Check the pressure and fine tune if
necessary by opening the valves and
adjusting the pressure regulator.
Close the fill and drain valves when
the system pressure is correct.
•
Open the manual vent at the highest
point in the system to check whether
the system is truly free of air. If nec-
essary, repeat the flushing procedure.
•
When using remote vents, note that
the minimum amount of fluid that will
be released is the quantity contained
in the vent pipe: 0.3 cl per meter of
vent piping with a diameter of 6 mm.
Solar pump and solar controller
start-up
Follow the instructions in the manual
provided:
•
check that the temperature on the
indicator is plausible.
•
check that the solar circuit pump and
controller are working properly
•
set the controller, pump and, if neces-
sary, the flow limiter to the system
hydraulic design specifications
Set the flow rate
The flow rate shall be adjusted accord-
ing to the size of the collector panel and
the interconnection method. The point
of reference is the absorber surface
area.
Nominal flow rate:
(required to remove absorbed energy
from the collector panel at the maxi-
mum level of solar radiation)
80 l/m²h = 1.3 l/m²min
Variable speed control:
The following are the absolute mini-
mum flow rates:
Diagonal collector connection:
30 l/m²h = 0.5 l/m²min
Collector connection from one side only:
45 l/m²h = 0.75 l/m²min
Refer to instructions in the section ti-
tled: collector panel hydraulics
(pages 15 to 16)
Anschließend:
•
Abdeckfolie von den Kollektoren ent-
fernen
•
Ordnungsgemäße Funktion der
•
Anlage überprüfen
•
Inbetriebnahmeprotokoll ausfüllen
•
Betreiber einweisen