Hydraulic Circuit; Nozzle Cleaning And Replacement - Ecoflam Multicalor 1500.1 Manual Del Usuario

420010312300 MULTICALOR 1500.1 - 1800.1 PR/PR TS
EN
The diagram illustrates the fuel feeding system of these types of burners, which incorpora-
tes a by-pass nozzle with oil flow regulation on its return pipe. The oil supply is varied by
acting on the nozzle through the pressure in the return line. Max. oil supply is therefore rea-
ched when the pressure in the pump line is about 22 bar and the return line is fully closed;
min. oil supply when the return line is fully open. Relevant pressure readings in the
return line are as follows:
Pump pressure 22-25 bar.
Max Burner output, return oil pressure:
FLUIDICS nozzle : 16 ÷19 bar.
BERGONZO nozzle : 20 ÷24 bar.
Min Burner output, return oil pressure:
FLUIDICS nozzle : 6 ÷9 bar
BERGONZO nozzle : 4 ÷8 bar
1 - Hose
2 - Oil filter
3 - Oil cock
A - Suction
R - Return
VL - Working oil valve
PR - Oil pressure switch
OIL DELIVERY ADJUSTMENT

HYDRAULIC CIRCUIT

VL
A
R
PR
POSITION OF IGNITION ELECTRODES
3÷4 mm

NOZZLE CLEANING AND REPLACEMENT

Use only the suitable box wrench provided for this operation to remove
the nozzle, taking care to not damage the electrodes. Fit the new nozzle
with the same care.
Note: Always check the position of electrodes after having replaced the
nozzle (see illustration). A wrong position could cause ignition troubles.
1
2
5 6 mm
28
1
3