Electrode Setting; Burner Start-Up Cycle - Riello G3BF 490T53 Installation, Use & Maintenance Manual

3
AIR DAMPER ADJUSTMENT
The air-output setting can be carried out acting with the rod
(2) on the screw (1) that makes the air-damper (3) turn.
Further retouchs can be carried out without removing the
cover but unscrewing the plug (A) as shown in the figure on
the below.
Turn to the right (sign +) to increase the
air quantity in the combustion chamber,
turn to the left (sign –) to decrease it.

ELECTRODE SETTING

Attention:
Before assembling or removing the
nozzle, loosen the screw (A) and
move the electrodes ahead.

BURNER START-UP CYCLE

Normal
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
2136
~
12s
S7021
4 ±
0.3 mm
D5230
A
Lock-out, due to light-failure
~
8
1
2
3
WARNING
MEASURES
MUST BE RESPECTED
2 – 2.5
mm
~
12s 5s
D5141
D5229