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When draining the heater, use the recommended drain
valve. First, close the water supply into the heater. For
proper safety valve operation, a backflow valve must be
mounted on the inlet pipes, preventing spontaneous
heater draining and hot water penetrating back into the
water main.
Hot service water is withdrawn by means of a combination
faucet from the outlet pipe marked with red colour. If
HSW distribution is longer, it should be insulated to
minimise heat losses. All outlets must be equipped with
combination faucets that allow setting the desired
temperature of water.
NOTICE
If the safety valve isn’t equipped with a drain opening, we recommend adding a drain valve
in a suitable location before the safety valve. If the pressure in the water piping exceeds 0.6
MPa, we recommend installation of a pressure control valve, as well. The appliance is not
designed to be serviced by people (including children) with limited physical, sensual or
mental abilities, or those having lack of experience and knowledge, unless a person
responsible for their safety provides supervision or familiarise them with the way of using
the appliance.
Safety valve:
TE-2852, DN20 – direct safety valve with inner connecting threads inside the body
Technical data:
Maximum pressure 0.6 MPa
Safety overpressure 0.63 + 0.03 MPa
Figure 6
Start-up
pressure of
the safety
valve [MPa]
Allowable
operational
overpressure
of the water
heater [MPa]
Maximum
pressure in
the cold
water pipes
[MPa]
0,6
0,6
up to 0.48
0,7
0,7
up to 0.56
1
1
up to 0.8
Water installation must follow and meet the requirements and
regulations relevant in the country of use.
Table 2
