Resol DeltaSol AL E Manual For The Specialised Craftsman

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Operating control lamp is permanently off.
Check the power supply of the controller. Is it
disconnected?
yes
The fuse of the
controller could be
blown. The fuse hol-
der (which holds the
spare fuse) becomes
accessible when the
cover is removed.
The fuse can then be
replaced.
Pump is overheated, but no heat transfer from
the collector to the store, flow and return have
the same temperature; perhaps also bubbling in
the lines.
Vent the system;
increase the system
pressure to a static
primary pressure of
at least plus 0,5 bar;
if necessary continue
to increase pressure;
switch the pump off
and on for a short
time.
Air or gas bubbles in
the system?
no yes
Is the collector
circuit blocked at the
dirt trap?
yes
Clean dirt trap
5.1 Miscellaneous
Pump starts for a short moment, switches off,
switches on again, etc.
Temperature
difference at the cont-
roller too small?
no yes
Wrong position of
collector sensor?
yes
Change ∆Ton and
∆Toff correspondingly.
Mount the collector
sensor at solar flow
(warmest collector
output); use immer-
sion sleeve of the
respective collector.
no
Plausibility control
of the option tube
collector function
no o.k.
Pump starts up very late.
Change ∆Ton and
∆Toff correspondingly.
Switch-on tempera-
ture difference ∆Ton
too large?
no
yes
Non-ideal position of
the collector sensor
(e.g. flatscrew sensor
instead of sensor in
immersion sleeves).
Activate tube
collector function if
necessary
yes
o.k.
Check the supply line
and reconnect it.
no
The temperature difference between store and
collector increases enormously during operation;
the collector circuit cannot dissipate the heat.
Collector circuit
pump defective?
no
yes
Heat exchanger
calcified?
yes
Check / replace it
Decalcify it
no
Heat exchanger
blocked?
yes
no
Clean it
Heat exchanger too
small?
yes
Replace with correct-
ly sized one.

Resol DeltaSol AL E Specifications

General

Brand	Resol
Model	DeltaSol AL E
Category	Controller
Language	English