ECOFEL BOILER SERVICE MANUAL
6.19 Safety Valve:
Its function is to protect the heater piping and the boiler against pressure increases due to
volume increase of the heated water. If the water pressure in the heater piping exceeds 3
bars, the spring in the safety valve pushes the valve and opens automatically. Thus, the
pressure in the piping is reduced. In this case, the boiler should be shut down and water
pressure should be reduced to 1.5 bars by opening the discharge valve after the water in
the system cools down. Safety valve should not be used for discharging the piping water.
6.20 Thermo-manometer:
Thermo-manometer measures the boiler outlet water temperature with the
capillary tube connected to the heating water heat exchanger outlet. With the
other capillary tube, it shows the water pressure in the system. It is an analog
gauge.
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Revision Date: 29 February 2008, Rev. No: 0