Probe-Electrode Positioning; Air Pressure Switch; Burner Start-Up Cycle - Riello Gulliver RS5D Instrucciones De Instalación, Montaje Y Funcionamiento

4.5 PROBE - ELECTRODE POSITIONING,
Fig. 11
1
2
3.5 ±
0.3
D4020

4.6 AIR PRESSURE SWITCH

Adjust the air pressure switch after having performed all other burner adjustments with the air pressure
switch set to the start of the scale.
With the burner operating at the required power, slowly turn knob clockwise until burner locks out.
Then turn the knob anti-clockwise by about 20% of the set point and subsequently check to see if burner
has started correctly. If the burner locks out again, turn the knob anti-clockwise a little bit more.
The burner leaves the factory with the pressure switch set at the beginning of the scale.
Attention:
As a rule, the air pressure switch must prevent the air pressure from lowering below 80 % of the adjustment
value as well as preventing the CO in the fumes from exceeding 1% (10,000 ppm).
To check this, insert a combustion analyser into the chimney, slowly close the fan suction inlet (for example
with cardboard) and check that the burner locks out, before the CO in the fumes exceeds 1 %.

4.7 BURNER START-UP CYCLE

Normal
Thermostat
Motor
Ignition transformer
First valve
First flame
Second valve
Second flame
Lock-out
A
Lock-out is indicated by a lamp on the control box (4, fig. 1, page 2).
3087
PLATE
40s min.
3s max.
(see fig. 11)
ATTENTION
Verify that the plate (1) is always inserted in the
flattening of the electrode (2).
31 ±
ELECTRODE
Lean the probe insulator against the cup
PROBE
Lock-out, due to light failure
3 – 8s
11 GB
CUP
0.3
40s min.
3s max.
A
D5016