Connecting Water To The Tank; Electrical Connection - Austria Email REU Series Operator's Manual And Installation Instructions

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REU - RDU - RDW - RSW - RUL

5.5 Connecting water to the tank

The assembly, connection and usage instructions of the hot water heater (boiler), as well as
ÖNORM (Austrian standard) B2531 T1 or DIN (German standard) 1988, must be observed
at all times.
Pressure-resistant connection
Any warranty is voided if inappropriate or defective tank connection fittings are used and/or
if the stated operating pressure is exceeded.To make the water connection, it is mandatory
to use a type-approved diaphragm safety valve or a diaphragm safety valve combination
– connection fitting for pressureresistant tanks! A safety valve combination consists of
shutoff valve, test valve, return flow valve, drain valve and safety valve with expansion water
discharge. It is installed between the cold water supply line and the cold water inlet (blue) of
the tank in the sequence shown below.

5.6 Electrical connection

The installation of the heating element and commissioning must be carried out
by a skilled person who assumes the responsibility for the proper execution and
configuration in his/her capacity as a professional. As a basic rule, the electrical
connection should be made as indicated on the enclosed, type-specific wiring
diagram! Make sure the supply voltage is correct! All accessible metal parts of the
tank must be covered by the safety/protection measure.
An allpole disconnector with 3 mm contact gap width must be integrated in the power
supply line. An automatic circuit-breaker may also be used as the disconnecting device. The
connecting cable must be introduced into the connection space of the fitted heater through
the attachment bolting. A cable grip (strain relief device) must be used for protection against
pulling and twisting.
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