Resol DeltaSol E User Manual

Stores cool down at night
Collector circuit pump
runs in the night?
no yes
Check controller
Collector temperature is
at night higher than the
outdoor temperature
no yes
Check the non-return
valve in the ow and the
return pipe with regard
to the functional ef-
ciency.
Sufcient store insula-
tion?
yes no
Increase insulation.
Insulation close enough
to the store?
yes no
Replace insulation or in-
crease it.
Are the store connec-
tions insulated?
yes no
Insulate the connections.
Warm water outow
upwards?
no yes
Change connection and
let the water ow side-
wards or through a si-
phon (downwards); less
store losses now ?
Does the warm water
circulation run for a very
long time?
no yes
Use the circulation pump
with timer and switch-off
thermostat (energy ef-
cient circulation).
The solar circuit pump does not work, although the col-
lector is considerably warmer than the store.
Is the control lamp (LED)
illuminated?
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 tempera-
ture difference for start-
ing the pump is to high;
choose a value which
makes more sense.
no
Is the pump current ena-
bled by the controller?
yes
Is the pump stuck?
Turn the pump shaft using
a screwdriver; now pass-
able?
Pump is defective - re-
place it
Are the controller fuses
o.k. ?
Controller might be de-
fective - replace it.
no
yes
no
no yes
Replace fuses..
Circulation pump and
blocking valve should be
switched-off for 1 night;
less store losses?
yes no
Check whether the
pumps of the after-heat-
ing circuit run at night;
check whether the non-
return valve is defective;
problem solved ?
no
no yes
o.k.
Control the non-return
valve in warm water
circulation - o.k.
yes no
Further pumps which
are connected to the
solar store must also be
checked.
The gravitation circula-
tion in the circulation
line is to strong; insert a
stronger valve in the non-
return valve or an electri-
cal 2-port valve behind
the circulation pump; the
2-port valve is open when
Clean or replace it
the pump is activated,
otherwise it is closed;
connect pump and 2-port
valve electrically in paral-
lel; activate the circulation
again
a
a b
b
DeltaSol
®
E
© RESOL 20160310 DeltaSol_E_V2.monen.indd
45 |

Resol DeltaSol E Specifications

General

Brand	Resol
Model	DeltaSol E
Category	Controller
Language	English