Checking The Ignition Device - Biasi M300V.2025 SM User Manual And Installation Instructions

12
13
Fig. 7.10
The LCD display displays the boiler tempera-
ture (primary circuit) and the
symbols Fig. 7.11.
Fig. 7.11
• Open the gas cock.
• Make sure that the ambient thermostat is in
the "heat request" position".
• Check the correct functioning of the boiler
both in domestic hot water mode and in
heating mode.
• Check the gas pressures and flow rates as
shown in section "GAS CONVERSION" on
page 74 of this booklet.
• Check that the condensate produced during
operation fills the syphon and is regularly
drained in the draining pipe.
• Switch off the boiler by pressing the 14 (Fig.
7.10) key for 5 seconds until the
symbol appears on the LCD display (Fig.
7.9).
• Press the 14 key for 5 seconds until both
and symbols appear on the dis-
play Fig. 7.10.
The LCD display displays the boiler tem-
perature (primary circuit) and the
- 62 -
COMMISSIONING
17
16
15
14
and
and
symbols Fig. 7.11.
The boiler will now go through an ignition se-
quence and the burner will light.
If after four ignition attempts (about four min-
utes) the boiler does not function and a code
that alternates between the letter "E" and the
writing RESET appear on the LCD display, it
indicates that the safety lock-out has stopped
the boiler. The display background flashes
(Fig. 7.12).
Fig. 7.12
Press the reset key on the boiler control panel
14 (Fig. 7.10) to reset its functioning.
For the first lighting up and following mainte-
nance procedures for the gas supply, it may
be necessary to repeat the resetting operation
several times so as to remove the air present
in the pipework.
After five consecutive resetting attempts the
reset button is inhibited. To restore its func-
tion it is necessary to switch the boiler off and
on from the electrical mains, using the fused
spur isolation switch fitted adjacent to the ap-
pliance.

7.10 Checking the ignition device

With the burner on high flame close the gas
cock.
After four ignition attempts (about four min-
utes) the boiler does not function and a code
that alternates between the letter "E" and the
writing RESET appear on the LCD display, it
indicates that the safety lock-out has stopped
the boiler. The display background flashes