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Priority control relay operation
If the power input of the loads connected to the
power supply system prevents their simultaneous
operation with the heater, a priority control relay
must be installed.
Wire the heater terminal block L1 to the power
supply source via the priority control relay. In this
wiring configuration, the power loads wired to
a non-priority power supply line will not turn on
while the heater is heating DWH.
Maintenance
Cleaning the water strainer (can be done by unqualified personnel):
1.
Isolate the power supply and close the cold water supply to the heater.
2.
Remove the heater enclosure.
3.
Remove the cold water inlet connection from the inlet port.
4.
Remove the strainer from the cold water inlet port.
5.
Clean the strainer.
6.
Reinstall the strainer with the seal and
connect the water supply to the inlet
port.
7.
Open the cold water supply stop valve
and inspect for leaks.
8.
Bleed air from the system, see "Bleeding
air".
9.
Reinstall the enclosure on the heater.
Danger !
Do not open the heater enclosure before isolating the power supply.
Electrocution hazard.
DE;DK;EN;ES;FR-119B_f.1933
L3
L2
L1
PE
PE
L1
EN
L2
L3
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