hajdu Z100ErP, Installation And Owner'S Manual

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Z30ErP • Z50ErP • Z80ErP • Z120ErP • Z150ErP • Z200ErP
It is forbidden and dangerous to expose the
container to pressures higher then the allowed
operating pressure!
5.2 The combined safety valve is included with the container. It is connected to the
hot water container through its Rp 1/2 inner thread, and to the water supply net -
work through its G1/2 (outer) thread. (Figure 5)
In the direction of the water flow, the valve body includes: one-way valve, spring
loaded bypass valve triggered by a pressure difference of 0.01~0.02 MPa, safety
valve with 0.65±0.05 MPa opening pressure, and outlet pipe.
The valve must be installed on the cold water pipeline IMMEDIATELY before the
container observing the flow direction indicated by the arrow (Figure 4). Before
installing the valve, the cold water pipeline must be carefully flushed, in order to
avoid damages due to possible contaminations. The valve may leak, whereby the
outlet should be directed vertically downwards, and the blow-off button should
be accessible. This pipe must be left open towards the air space. The drainage
pipe must be directed downwards (from the appliance) into a frost free room,
and free drainage must be ensured towards the air space. To ensure the proper
operation of the water heater, carefully observe the commissioning drawing. You
can direct leaking water into the sewage network in a visible way.
5.3 If the water pressure in the pipeline exceeds 0.6 MPa, even on a temporary basis,
a pressure reduction valve has to be mounted in front of the hot water tank. This
must be purchased and installed by the customer. The pressure reduction valve
is inserted in front of the combined safety valve (Figure 7)
5.4 Any number of taps and mixing faucets can be mounted on the hot water contain -
er. You can prevent the back-flow of hot water via the taps by mounting a one-
way valve in front of the cold water network. (Not included with the product.)
5.5 A closing valve needs to be mounted in the water pipeline in front of the safety
valve and the pressure reduction valve, in order to enable the disconnection of
the appliance from the water network for the purposes of maintenance works.
(Figure 4)
If the user may be exposed to hot water during the withdrawal of water, we rec -
ommend to implement a hydraulic connection with hot water protection. (Figure 6)
6. CONNECTION TO THE ELECTRICAL NETWORK
6.1 The connection of the container to the electrical system must be of a permanent
design. Wall sockets may not be used.
Cable connection must be implemented from the water heater to the isolation
switch, which must be incorporated in the fixed wire network. The overcurrent pro -
tection of the isolation switch must be ensured using a miniature circuit breaker.