ECOFEL BOILER SERVICE MANUAL
6.8 Hydraulic Block:
6.9 Automatic Bypass system:
It is located in the right hydraulic block. Copper By-Pass pipe provides
passage between heater stream and right hydraulic block. By-pass is active
in usage water and heater modes. Function: Under normal conditions, if
the pressure losses in piping are low, Bypass will not open and hot water
in the heater circuit will flow to piping. If pressure losses are high, water
will lose all its heat and return to the boiler; this considerably cooled water
shall cause thermal shocks in the heat exchanger and shall also cause
condensation by cooling down the flue kit gas temperature. To avoid this
situation, automatic by-pass shall prevail over the spring tension and
by-pass valve will be opened. Thus, a short circuit will occur between
stream and return of heater piping and water coming out the heat
exchanger will be mixed with returning water.
6.10 Ignition and Ionization Electrode:
It is located in front of the burner, at right and left foremost position. Inside of the
electrodes are metal. Outer surface is coated with ceramic material which functions
as electrical insulator.
The ignition electrode
is mounted such that the distance of its end to the
surface of the burner is 3mm.
Its function is to provide spark formation by making the high voltage transmitted
from the ignition transformer jump on the surface of the burner.
Lonization electrode
is mounted at 3mm distance to the surface of the burner.
Its function is to provide the transmission of the electric current generated on the
electro by the flame formed on the surface of the burner.
- 9 -
Revision Date: 29 February 2008, Rev. No: 0
Flow Control System
Safety Valve
3 Bars
Flow Control
Component
Water Pressure
Pressure Switch
Pump
Water Filler Tap
