39
COMMISSIONING AND MAINTENANCE
MAIN BURNER FUNCTIONS
OIL PRE-HEATING FUNCTION (GITRÈ 4 model)
The burner has an oil pre-heating function. When the boiler
thermostat requests a burner start-up, the burner waits for the
contacts of pre-heating thermostat (K), located at the oil nozzle
holder, to close.
If the startup or pre-heating thermostat does not close after 600
seconds, the burner controller locks out.
If the flame goes out during normal functioning, the burner only
repeats the ignition cycle provided the contacts of the startup or
pre-heating thermostat (K) are closed.
If the flame goes out during normal functioning and the contacts
of the startup or pre-heating thermostat (K) are open, the burn-
er remains in the purge phase for the duration of post-purging
time (if programmed), then purging stops and the burner waits
for the contacts of the startup or pre-heating thermostat (K) to
close before restarting pre-purging time.
CONTROLLED SHUTDOWN AND RESTART
After 24 hours of continuous functioning, the controller initiates
a controlled shutdown followed by a re-start to ensure that the
flame detector is not faulty.
You can reduce reduced shutdown and restart time to 1 hour
(see "Programming Mode").
POST-PURGING
The post-purging function keeps the fan running for a set time
after the burner shuts down provided there is no new heat re-
quest.
When the contacts of the heat request thermostat open, the
burner controller shuts down the flame and shuts off the oil
supply.
Post-purging does not occur:
− after a lockout;
− if a heat request is cancelled during pre-purging.
Post-purging occurs:
− if a heat request is cancelled during safety time;
− if a heat request is cancelled during normal functioning.
NOTE
If extraneous light or a false flame signal is detected during
post-purging, the burner locks out after 25 seconds.
If a new heat request is detected during post-purging,
post-purging time is reset, the fan motor stops and a new
burner ignition cycle is initiated.
PROGRAMMING MENU
General
You can use the reset or remote reset buttons to enter program-
ming mode only during NORMAL FUNCTIONING and STANDBY.
If the reset or remote reset button is not pressed for 10 seconds
in menu mode, the controller automatically closes the menu
and the green LED flashes for the set value.
If you press the reset or remote reset button more than the max-
imum permissible number of times, the maximum permissible
value is stored in memory.
If you press and hold the reset or remote reset button for over
60 seconds, a button error is displayed and the burner controller
resets itself.
