DeltaSol
®
AX
© RESOL 06255 deltasol_ax.monen.ind
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11
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Stores are cooled during the night.
Does collector circuit
pump run during the
night?
no
yes
Check the controller
functions
Collector temperature is
higher at night than am-
bient temperature?
no
yes
Check operation of non
return valves.
Is trore insulation suffi-
cient?
yes
no
Intensify the insulation.
Is store insulation close
enough to the store?
yes
no
Replace or intesify the
insulation.
Are the store connceti-
ons insulated?
yes
no
Insulate connections.
Warm water outflow
upwards?
no
yes
Change connection and
let the water flow side-
wards or through a siphon
(bow downwards); less
store losses now?
The solar circuit pump does not work although the coll-
ector is obviously warmer than the store.
Does the control LED
flash?
yes
no
Does the pump start up
in manual operation?
yes
There is no current; check
fuses / replace them and
check power supply.
The adjusted tempe rature
difference for starting the
pump is too high; choose
a value which makes more
sense.
no
Is the current of the
pump released by the
controller?
Free the pump using a
screwdriver; in operation
now?
Is the pump defective -
replace it.
Are the fuses of the
controller o.k.?
Controller seems to be
defective - replace it.
no
no
no
yes
Replace the fuses.
no
yes
o.k.
Control the return flow
preventer in warm water
circulation- o.k.
no
Cleaning or replacement.
yes
Is the pump stuck?
yes