Installation and user handbook – rev.0.4 of 23.02.2017
49
Assembling the safety unit (an alternative to the safety valve)
For installations in Italy and in countries where a regulation similar to the one established
by Ministerial Circular no. 829571 of 26 March 2003 regarding accumulation water heaters:
"...these devices must be connected to the domestic water system using a hydraulic safety unit. This
unit must include at least one interception tap, a one-way valve, a control device for the one-way
valve, a safety valve, a hydraulic charge interrupting device, all accessories necessary for using the
water heaters safely. The design, production and operation criteria of the hydraulic safety units are
those defined by the European Commission Regulation EN 1487:2002...”
, the supplied safety and
one-way valve is not suitable and must be replaced with a safety unit that complies with the
above standard.
The supplied valve only answers the EN 1717 regulation defined in section 5.4 of the EN
12976-2 regulation.
To comply with the indications above, the installer can choose whether to assemble the
individual devices listed above, or install the SAFETY AND ONE-WAY VALVE, available as
an optional accessory on request (code
4400223301
).
It includes a valve body, with MF ¾‟‟ connections, that contains several elements:
the safety and outflow valve, set at 4.5 ± 0.5 bar;
the one-way valve, with control device (can be inspected, self-cleaning);
the device for interrupting the hydraulic load;
the stopcock;
an adjustable outflow trap.
Danger! Do not assemble the safety system together with the safety and one-
way valve.
Installing the safety system is an alternative to using the safety and one-way valve
(standard supplied).
Summary of Contents for EGO 110
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