hajdu Z30 SMART, Manual

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Z30 SMART • Z50 SMART • Z80 SMART • Z120 SMART • Z150 SMART • Z200 SMART
5. CONNECTION TO THE WATER SUPPLY
NETWORK
The container and assemblies required for its operation mustbe
connected to the water network according to Fig.3, page 115.
5.1. It is forbidden to connect the appliance using a hose.
For cold and hot water connections, steel or red copper pipe rated for 0.6 MPa
nominal pipeline pressure, heat resistant plastic pipe rated up to min. 80 °C or
flexible connection may equally be used. When connecting to a copper pipeline,
the use of insulating spacers is compulsory. One spacer must be inserted on the
hot water pipe of the container immediately, while the other one on the cold
water pipe, between the installed assemblies and the copper water pipeline. If
no spacer is used at the connections, we neither provide guarantee for failures
attributable to the corrosion of the threaded tank pipes, nor assume liability for
damages caused by the same. The spacer is not included; you can order it under
the following part numbers, depending on the dimensions:
• ¾” spacer: 1252122513
• ½” spacer: 1252122514.
ATTENTION! IT IF FORBIDDEN AND DANGEROUS to expose the
tank to pressures higher than the allowed operating pressure!
5.2. The combined safety valve is included with the
container . It is connected to the hot water con-
tainer through its Rp 1/2 (inner) thread, and to
thewater supply network through its G1/2 (out -
er) thread.
In the direction of the water flow, the valve
body includes: one­way valve, spring loaded by -
pass 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 lineIMMEDIATELY before the con -
tainer observing the flow direction indicated by the arrow. (Fig. 3, p. 115.)
Before installing the valve, the cold water pipelinemust be carefully flushed, in or -
der to avoid damages due to possible contaminations.
The valve may leak, whereby the outlet should be directed vertically downwards,
and the blow­off button should be accessible. The valve outlet must be direct -
ed downward, and water may leak from the drainage pipe of the pressure re -
lease device. 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 opera -
tionof the water heater, carefully observe the commissioning drawing. You can di -
rect leaking water into the sewage network in a visible way.