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Connection Diagram EWH
L, N...Versorgungsnetz
Connecting voltage: ~230V
50 - 150 litres wall-mounted tank 6h
FIRST COMMISSIONING
The tank must be lled with water before switching on the electricity.
The expansion water created in the internal boiler during the heating process must drip from the safety valve in
the case of pressure-type connection, and from the overow mixing tap in the case of pressureless connection.
Caution: The rst heating process must be implemented and monitored by a licensed expert.
The hot water drain pipe as well as parts of the safety tting may become hot.
The preset temperature and the actual temperature of the water withdrawn should correspond approximately
after completed heating.
DECOMMISSIONING, EMPTYING
If a water heater is taken out of operation or unused for a longer period of time, it must be emptied and dis-
connected all-pole from the electric power grid. Turn o the lead switch or the automatic cutout.
In rooms with a permanent risk of frost, the water heater must be emptied before the start of the cold season,
insofar as the device remains out of operation for several days and is not operated in the anti-frost position.
The service water is emptied through the drain valve of the safety valve combination after closing the shuto
valve in the cold water supply line and under simultaneous opening of all hot water valves of the connected
service ttings. Emptying may also be performed through the safety valve into the expansion water funnel (drop
collector). For this purpose, the small safety valve wheel is turned to the »Test« position.
Caution: hot water may exit during emptying.
In the case of a risk of frost, it must be observed also that not only the water in the water heater and in the hot
water lines can freeze, but also in all cold water supply lines to the service ttings and to the device itself. There-
fore, it is advisable to empty all ttings and lines holding water back to the frost-safe part of the domestic water
system (domestic water supply).
If the storage tank is put back into operation, then it must bindingly be observed that it is lled with water and
water exits bubble-free at the hot water valves.
CAUTION!
The internal circuit
must not be
changed!
31


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