INSTALLATION
15
4.3.
Safety features
The boiler can be delivered as an optional with a safety kit, which shall be connected to the
corresponding safety connection pipe. The kit consists of a safety valve, an air relief valve and
a thermomanometer.
Additional safety equipment can be mounted on the outlet line, at a distance less than 1,5 m
from the boiler.
Fig 4.
Boiler safety kit
4.4.
Filling the system
After completing all the hydraulic connections, the circuit may be filled with water. After filling
the system, open the radiators air valves to get rid of the air in the installation.
Verify that the installation pressure is according to the technical feature of the boiler. The
pressure must be verified through
the boiler’s
manometer. An additional manometer should be
installed on the cold water inlet to verify the cold pressure, at the lowest point of the
installation, at a point close to the boiler.
The whole installation must remain under nominal pressure for at least 10 minutes. During this
period, check that all the connections are tight and there are no water leakages. Make sure
that during this period no pressure drop appears.
After firing the boiler, make sure the network functions properly at working temperature and
pressure.
The hardness of the mains water supply affects the boiler’s life span. It is
recommended to use a water softener if water hardness exceeds 15
o
f.
Do not fill the system at the working pressure! When the boiler will be heated,
the water pressure will raise. Filling pressure must be at least 1 bar lower
than working pressure!
Boiler type
Connection*
ENDS 125
1
½”
ENDS 200-600
2
”
*Safety kit is not included. Contact the
manufacturer for further information.
