pag.13
LB1317
Maior P 45/60/80/120 PR
A
Insert the RWF 40 regulator through the relative opening in the electrical panel
(A)
.
Insert the fixing anchors and screws into the slots, and secure the unit to the panel
(B)
.
To open the regulator, squeeze the cover from the ends as shown, and lift out
(C)
.
WHEN REPLACEMENT IS NECESSARY, PROCEED AS SHOWN IN FIGURES A-B-C BELOW
B
C
TROUBLESHOOTING
The burner does not start.
- Main switch in “0”.
- Fuses are blown.
- Boiler thermostats are in open position.
- Control box is defective.
The burner runs the prepurging but does not ignite and then switches into safety condition.
- Control box is defective.
- Ignition transformer is defective.
- Electrodes are dirty.
- Electrodes are defective.
- Electrodes are in wrong position.
- Nozzle is clogged.
- Nozzle is too worn.
- Filters are clogged.
- Oil pressure too low.
- Combustion air flow rate excessively high related to nozzle’s flow rate.
The burner ignites but then switches into safety condition.
- Control box is defective.
- Nozzle is clogged.
- Nozzle is too worn.
- The photocell does not detect the flame.
- Filters are clogged.
- Oil pressure too low.
- Combustion air flow rate excessively high related to nozzle’s flow rate.
The burner does not switch to High flame .
- Low flame and High flame stage manual switch on control board is in wrong position.
- Control box is defective.
- Oil pressure too low.
- Filters is clogged.