Lamborghini Caloreclima EM 40/2-E Installation And Maintenance Manual page 37

OPERATING CYCLE
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 lasting.
T10 Begins when the motor starts up and with the pre-
purge phase; it lasts for 3 seconds,
within which the PA air pressure switch must give
the go-ahead.
T1 Pre-purge time, which lasts for at least 30 seconds,
ending when the transformer
starts up.
LME EQUIPMENT
The release pushbutton on the equipment is the main component for accessing all the diagnostic functions (activation and
deactivation) as well as for releasing the control and checking device. The release pushbutton has a multicoloured led
which indicates the state of the control and checking device during operation and when the diagnostic function is in use.
EQUIPMENT STATE INDICATORS
Description
Condition
Standby, other intermediate states
Ignition stage
Correct operation
Incorrect operation, current level of
flame detector below permitted minimum
Drop in voltage
Burner lock out
Fault (see table)
Stray light before burner ignition
Rapid flashing for diagnostics
Necessary input signals
Output signals
A Begin start up
B Flame present
B-C Operation
C Control stop
TMF High/low flame thermostat
C-D Air shutter closure + post-purge
TC-PG Thermostats/Gas pressure switch line
MB Burner motor
PA Air pressure switch
TR Ignition transformer
V1°-V2° 1st/2nd stage gas valve
EC Control electrode
MT Air servo control
T3 Pre-ignition phase, it ends when the gas valve
opens. It lasts for 3 seconds.
T2 Safety time, within which the flame signal must
reach the EC electrode. It lasts for 3 seconds.
T4 Interval between the opening of the V1 gas valve
and the opening of the second
stage V2. It lasts for 8 seconds.
T6 Air shutter closing time and program zero-setting
time.
T12 Time in which the air shutter shifts to the start-up
position.
Colour sequence
No light
Yellow, flashing
Green
Green, flashing
Alternating yellow red
Red
Red, flashing
Alternating green red
Red, rapid flashing
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