Working Cycle - Lamborghini Caloreclima ECO 8 Manuel D'installation Et D'entretien

WORKING CYCLE

SINGLE-STAGE:
When switched on the burner motor starts and the 15-second pre-ventilation phase
begins. During this phase the ignition transformer comes on and the inter-electrode arc
is generated. Once pre-ventilation is over the fuel on-off valve opens and the fuel starts
flowing out of the nozzle thus igniting a flame. After another 3 seconds (post-ignition
phase) the inter-electrode arc is switched off. If the flame fails to appear within 10 se-
conds of the end of pre-ventilation the burner is shut down. If the flame accidentally
goes out during routine operation an automatic re-ignition sequence begins. Burner
shutdown is indicated by the boiler system warning light and/or by the room thermostat
indicator. Burner restart is effected by pressing the reset button.
TWO-STAGE:
When switched on the burner motor starts and the 13-second pre-ventilation phase
begins. During this phase the ignition transformer comes on and the inter-electrode
arc is generated. Once pre-ventilation is over the fuel on-off valve opens and the fuel
starts flowing out of the nozzle thus igniting a flame. After another 15 seconds (post-
ignition phase) the inter-electrode arc is switched off. If the flame fails to appear within
10 seconds of the end of pre-ventilation the burner is shut down. At the end of the post
ignition time, the servomotor of the air lock is switched ON, thereby causing the air
lock to open. This will supply the fuel selenoid valve fitted on the pump, so that gas air
pressure at the nozzle will increase from 10 Kg/cm2 (first stage) to 18 Kg/cm2 (second
stage). If the flame accidentally goes out during routine operation an automatic re-
ignition sequence begins. Burner shutdown is indicated by the boiler system warning
light and/or by the room thermostat indicator. Burner restart is effected by pressing the
reset button .
ECO 8
ECO 10
ECO 15
ECO 20
ECO 15/2
ECO 20/2
UK
34
Necessary input signals
Output signals
t1 Pre-ventilation and pre-ignition
t2 Post-ignition
t3 Max safety time