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Austria Email EHT serie Manual

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Electric Water Heater EHT - 50, 80, 100, 120, 150 litres Id. Nr.: 246502-10
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Implementation: operator, plumber
Time interval: every 6 months
Maintenance and repairs:
If no water exits during heating of the water heater or in the event of a permanent leak of the safety valve, an
attempt must be made to loosen the valve by repeated operation of the venting facility or to rinse out any possib-
le foreign object (e.g. fur particle) on the sealing unit.
If this cannot be achieved, appropriate repairs by a plumber must be initiated. The complete safety valve must be
replaced in the case of any damage to the valve seat or sealing ring.
Implementation: plumber
Time interval: yearly
To test the non-return valve, the shuto valve is closed and no water must run out of the opened test valve.
The storage tank is operated using the hot water valve of the service tting (mixer tap). As a result, the
storage tank is constantly under line pressure. To protect the internal boiler from overpressure during he-
ating, the appearing expansion water is discharged through the safety valve.
In order to avoid damages to the hot water tank from overpressure, it is absolutely necessary to replace
any furred safety valves. The non-return valve prevents the hot water from owing back into the cold water
supply net in the case of a loss of line pressure, thus protecting the boiler from heating up without water.
Using the shuto valve, the storage tank can be separated in relation to water and thus also from the cold
water supply network, and emptied through the drain valve, if required.
In order to allow for a trouble-free repair, a removal or exchange of the device, it is necessary to establish
the connection of the tank by means of a detachable connection (Dutch). Tank leaks as a result of an im-
proper connection and resulting damage and consequential damage are excluded from the warranty and
product liability.
POWER CONNECTION
General Information
a) The electrical connection must principally be implemented from an expert in accordance with the cir-
cuit diagram axed inside the connecting area of the tank!
b) Observe the correct supply voltage!
c) An all-pole disconnecting switch with a contact gap width of 3 mm must be provided in the power
supply line. Automatic safety cut-outs are also permissible as disconnecting switch devices.
d) The connecting cable must be inserted into the connecting area of the tank through the screwed cable
connection and secured against pulling and twisting by means of the strain relief device.
e) The hot water tank must be isolated rst from all possible sources of electrical power in accordance
with EN 50110 (ÖVE, TAEV) when being mounted and for interventions in the device. The system must
be protected against switching on again of the power supply prior to any additional works (unscrew
fuses, trigger line circuit breaker).
f) Caution: The lower cover is to be mounted with the nose bearing-mounted (wiring diagram inside) at
the rear and to be installed at the front with 2 screws!
… 24 …


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