6
EN
Open-circuit (gravity) system
Closed-circuit (pressure) system
Installation above the basin/sink
Installation above the basin/sink
Installation below the basin/sink
Installation below the basin/sink
No closing valve may be built-in between the water heater and return safety
valve, because with it the pressure protection would be impeded!
The heater
can be connected to the domestic water supply network without a pressure-reducing
valve if the pressure in the network is lower than the nominal pressure. If the
pressure in the network exceeds the nominal pressure, a pressure-reducing valve
must be installed.
Before connecting it to the power supply, the water heater must be filled with
water.
When filling the heater for the first time, the tap for the hot water on the mixing
tap must be opened. When the heater is filled with water, the water starts to run
through the outlet pipe of the mixing tap.
CONNECTING THE WATER HEATER TO
THE POWER SUPPLY NETWORK
The water heater shall be connected to the power supply by an electrical cable fitted
with a plug. Should the existing cable replaced by a new, longer cable, the new cable
should be connected to the lead and the wires screwed to the connectors. In this
2
7
5
1
6
8
2
3
4
5
5
1
6
5
4
3
2
8
7a
2
Legend:
1 - Safety valve
2 - Non-return valve
3 - Test valve
4 - Pressure reduction valve
5 - Closing valve
6 - Checking fitting
7 - Mixer tap - installation above the
basin/sink
7a - Mixer tap - installation below the
basin/sink
8 - Funnel with outlet connection
H - Cold water
T - Hot water
