ECOFEL BOILER SERVICE MANUAL
6.15 Flow
Limiter:
Function of the flow limiter is to reduce the water flow at the inlet of usage water heat
exchanger. With its o-ring inner structure, it limits the quantity of water flowing into
the boiler for heating with 10 l/min.
6.16 Combustion Chamber:
The walls of the combustion chamber are bended from sheet metal so
as to allow the placement of mineral wool. Mineral wool is made of
ceramic and fiber material. It is not harmful for environment. It has
insulating characteristic. Operating temperature of mineral wool is
about 1200ºC and its melting temperature is nearly 1700ºC. Therefore,
it is not affected by direct contact with the flame of the burner. It
provides the transfer of heat generated on the surface of the burner
fully to the face of heat exchanger.
6.17 Main Card:
The functions and components of the boiler are controlled by the main
card. Display card allows adjusting the user settings and display of failure
codes and water temperatures.
6.18 Water Pressure Pressure Switch:
The pressure switch located on the left side of the hydraulic
block prevents waterless operation of the boiler by opening and
closing with the mechanical motion gained from a diaphragm
unit. If the primary circuit (closed circuit) pressure falls below 0.8
bars, the boiler delivers failure. The boiler is put into use again
by filling water to the closed circuit from boiler filler valve.
- 11 -
Revision Date: 29 February 2008, Rev. No: 0
Pressure pressure switch
