APPLIANCE
M
Main features
- EMC filter on the board;
- Protection fuse on the board;
- Stable timers not affected by the voltage and/or temperature changes (system management by microprocessor);
- protection in case of low voltage power supply;
- protection in case of high power supply voltage;
- non-volatile block;- intermittent functioning: regulation and self-diagnosis stop every 24h;
- air damper control for functioning at several stages or modulating;
- independent control outputs for 3 fuel valves;
- remote reset;
- built-in button or two-colour LED for indicating functioning status and anomalies;
- flame detection via photoresistence;
Table of times
Pre-ventilation
time
15s
(*)
Pre-ignition
time
15s
(*)
Post-ignition
time
3s
Safety
time
5s
(**)
Functioning regulator management delay
10s
Intervention time to switch-off
< 1s
Parasite flame signal duration maximum timing before block
10s
Post-ventilation time
from 0 to 255 s
Key pressing limit timing for release
0.2s ≤ && ≤ 4s
Pump engagement duration timing
30s
Continuous key pressing timing for temporary shutdown
> 5s
Manual mode functioning timeout
4 minutes
Timeout communication with display
60s
Maximum duration of access to menus
120s
(*) Minimum timing guaranteed
(**) Maximum timing guaranteed
Special functions
Network frequency self-learning
The board can automatically optimise the functioning times in relation to the network frequency measured (50 or 60 Hz).
Temporary shutdown
With ignition request in progress or burner functioning, it is possible to temporarily force a stop by continuous pressing of the
key for longer than 5s (yellow fast flashing).
A new start-up cycle is allowed only when the key is released.It is possible to activate the function in question also with the
external release button.
The function in question can only be activated by accessing the INSTALLER MENU.
Pump engagement
I
f the appliance is in block status, it is possible to force a pump engagement status.
By continuous pressing of the key for a time exceeding 6s and successive release of the same, there is a fast green/yellow/
red flashing phase with duration of 3 s.If the key is pressed and released within this timed period, the motor and pump are
activated for duration of 30s.
The procedure must be repeated in order to deactivate the function before the timing expires.It is possible to activate and
deactivate the function in question also with the external release button.
The function in question can only be activated by accessing the INSTALLER MENU.
Protection in case of low voltage power supply