Lamborghini Caloreclima 310 PM/M-E Manual Para La Instalación Y El Mantenimiento página 45

DIAGRAM OPERATION MODULATION TWO STAGES
TC
PG
MB
PA
TR
VE
TMF
max.
M
MT
min.
EC
Legend
T11 Air shutter opening time, from 0 to max.
TW Begins with the closure of the thermostatic line
or the PG. The PA must be in the rest position.
This is the waiting and self-test time.
T10 Begins when the motor starts up and with the pre-
purge phase, within which the PA air pressure
switch must give the go-ahead.
T1 Pre-purge time.
T3 Pre-ignition phase, it ends when the gas valve
opens.
Input signals
Output signals
A Begin start up
B Flame present
B-C Operation
C Control stop
C-D Air shutter closure + post-purge
TC-PG Thermostats/Gas pressure switch line
T10
TW T11 T1
0
T3
T2
T12 T4
T2 Safety time, within which the flame signal must
reach the EC electrode.
T4 Interval between the opening of the gas valve
and the opening of the second stage.
T6 Air shutter closing time and program zero-setting
time.
T12 Time in which the air shutter shifts to the start-up
position.
MB Burner motor
PA Air pressure switch
TR Ignition transformer
VE Gas valve
TMF Thermostat modulation flame
EC Control electrode
MT Air servo control
45
T6