11
10777 - GB-CZ-HU-PL-RO-RU - 0 - 04 / 07
8.2
Cell replacement, two stage burner
- disassemble the active block,
- unscrew the 2 screws (see wiring diagram)
8.3
Disassembling the burner
Loosen the securing screw, and screw it in the opposite
marker threading, the flange opens, allowing for easy
disassembly of the burner. To perform these actions,
loosen slightly the nuts fastening the flange on the
boiler.
NB: the internal wiring of the programming unit mounting
is not accessible.
8.1
Cell replacement, one stage burner
- Disconnect the cell.
7.5
Maintenance position N°.2
- Engage the centring square, reference G, in the
housing, reference I1.
- Clean the fan and the inside of the spiral with a brush
and compressed air.
- Clean the photoelectric cell (no glyceride)
- Clean the electrodes.
- Check that all components are in place: especially that
the air regulator closes correctly.
- Connect the back half casing and burner front plate
with the 4 screws (reference A).
- Open the fuel valve. Check the fuel pump cover seal.
- Refit the cover and connect the electric boiler connector
to the programming unit.
- Make an operating test by checking the smoke CO
2
content and darkening index.
7.6
Fan setting
- Check the fan setting with a short tape
or depth
calipers.
- Take this dimension between the motor support lug
and the back face of the fan flange. Z = 122.6mm.
7.3
Maintenance position No.1
- Engage the centring square, reference G, in the
housing, reference I.
- Clean the combustion head.
7.4
Change the nozzle
Unlock the screw, reference Y, No.4 hex head wrench,
take off the electrode-stabilizer unit. Clean this unit without
taking off the electrode unit. Unscrew the nozzle using 2
flat No.16 wrenches, and change it. Screw up the nozzle
on the reheated line, refit the electrode-stabilizer unit
complying with the position of the electrodes. Fixing the
stabilizer unit on the fuel line positions the end of the nozzle
relative to back of the stabilizer (see setting on page 9).
Y
I
G
Z
Tightening
screw
Cell connector
8
OPERATING PROBLEMS (burner turned off)