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10.7 Refrigerant circuit
NOTICE: Refrigerant leak!
B Repairs to the refrigerant circuit (e.g. to the
compressor, condenser, evaporator, expansion
vessel) may only be carried out by an authorised
contractor.
10.8 High limit safety cut-out
The appliance is equipped with an automatic safety facility. This safety
facility isolates the DHW storage tank from the power supply to prevent
the risk of injury if the DHW storage tank water temperature rises above
a certain limit.
NOTICE: The temperature limiter may only be reset by
an authorised contractor after the fault has been
remedied.
Resetting the high limit safety cut-out
B Remove front casing (
Fig. 3, [24]).
B Remove the protective cap from the resistor.
B Press reset button all the way down ( Fig. 49, [1]).
1
Fig. 49 Temperature controller
[1]
Reset button
[2]
Temperature controller
After a fault has been remedied, ensure that the
temperature controller is in the position shown in
Fig. 49.
10.9 Draining the storage tank
CAUTION: Risk of scalding
Check the appliance's DHW temperature before opening
the safety valve.
B Wait until the water temperature has dropped enough
to prevent burns and other damage.
B Isolate the appliance from the power supply.
B Close the water shut-off valve at the cold water inlet and open one
DHW tap.
B Open drain set.
-or-
B Open safety valve.
B Wait until no more water flows out of the drain set and the appliance
has been completely drained.
SUPRAECO W – 6 720 646 161 (2012/04)
2
6720646160-27.1V
Maintenance
27
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