Resol DeltaSol C/1 Manual page 15

C/1
D e lt a S o l
®
Stores are cooled during the night.
Does collector circuit
pump run during the
night?
no yes
Collector temperature is
at night higher than ambi-
ent temperature.
no yes
Is store insulation suffi-
cient?
yes no
Is store insulation close
enough to the store?
yes no
Are the store connec-
tions insulated?
yes no
Warm water outflow
upwards?
no yes
Does warm water circu-
lation run for a very long
time?
no yes
Switch-off the circulation
pump and the blocking
valve for 1 night; less store
losses?
yes no
a
Check the controller
functions
Check the return flow
preventer in feed flow and
return flow with regard to
the functional efficiency.
Intensify the insulation.
Replace or intensify the
insulation.
Insulate connections.
Change connection and
let the water flow side-
wards or through a siphon
(bow downwards); less
store losses now?
no yes
o.k.
Use the circulation pump
with timer and switch-off
thermostat (energy effici-
ent circulation)
Check the pumps of the
after-heating circuit accor-
ding to nightly run and de-
fect return flow preventer;
problem solved?
no
b
a
Control the return flow
preventer in warm water
circulation- o.k.
yes no
The gravitation circu lation
in the circulation line is
too strong; insert a stron-
ger return flow pre venter
or an electrical 2-way val-
ve behind the circulation
pump; the 2-way valve is
open in pump operati-
on, other wise it is closed,
conect pump and 2-way
The solar circuit pump does not work although the colle-
ctor is obviously warmer than the store.
Does the pump start up
in manual operation?
no yes
Is the current of the
pump released by the
controller?
no
yes
Are the fuses of the
controller o.k.?
no yes
Replace the fuses.
b
Please also check further
pumps which are con-
nected to the solar store.
Cleaning or replacement.
valve in parallel; activate
the circulation again!
The adjusted tempe rature
difference for starting the
pump is too high; choose
an matching setting
Is the pump stuck?
yes
Turn the pump shaft using
a screwdriver; is it passa-
ble now ?
no
Is the pump defective -
replace it.
Controller might be de-
fective - replace it.
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