Start-up, calibration and operation of the burner
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The display shows “
P2: 6100
” (for example 6100 rpm);
Change the value by pressing simultaneously the keys “A” and
“+” to increase the value or keys “A” and “-” to lower the value;
Confirm by pressing “
i/reset
”;
Press contemporaneously the keys “+” and “-” (ESC) several
times until the display shows “
OPErAtE
” and then “
OFF
”;
At this point it is possible to start the burner.
6.4
Burner start-up
The burner can operate in two different modes:
1
Manual operation (to be used for the initial start-up): in this
mode the indicators of the display are blinking;
2
Automatic operation (for normal work operation): in this mode
the indicators of the display are fixed.
6.4.1
First burner start-up (manual operation)
–
Electric voltage is available (indicator light “POWER ON” must
be on).
–
Turn the “ON/OFF” selector to “OFF”, standby (OFF).
–
Disconnect the external modulation control (control with 3
points or analogue signal).
Start the programming mode for the technician.
Keep the buttons “
A
” and “
F
” pressed simultaneously for
< 5 seconds. “
Code
” is displayed.
Entering the password of the technician (SO) using the but-
tons “+”, “-” and “i/reset”. See also chapter “
Entering the
password
” on page 43.
The display passes from
PArA a 400: SEt
. Confirm with the
button “
i/reset
”.
run is displayed. Confirmation with the
i/reset
button starts the
setting mode for minimum load (
P1
), ignition load (
P0
) and
nominal load (
P2
).
The display shows
OFF
blinking.
“Turn the “ON/OFF” selector to “ON” and make sure that there
is a heat request (thermostat on ON).
LME7 starts and carries out a start-up. The corresponding
phases of the program are carried out according to the
sequence scheme and the program phases are displayed
blinking (Tab. M at page 18).
The device works up to the end of the Ph30 pre-purging
phase, it is brought to the starting load and passes to the dis-
play of
P0
(number of rpm ignition load). On the left is dis-
played
P0
blinking, on the right the current rpm.
keeping button “
A
” pressed (the display passes to
0A
and the
rpm is indicated blinking) and pressing the button “+” or “-”, it is
possible to modify the rpm number of 10 rpm within the pre-set
limits (Parameter P403.00).
NOTE:
The value set for P0 should be greater than the value set for
P1. The base unit controls the setting values. If the setting
rules are violated, the appliance goes into lockout and the er-
ror message Loc is displayed: 225.
Key (Fig. 168)
“OFF/ON” switch
“RESET” signal button
“POWER ON” signal
“CALL FOR HEAT” signal
“ALARM NOISE” acoustic signal
“ALARM SILENCE” button
“VALVE ON” signal
“PILOT” signal”
Press “
i/reset
” to transfer the setting value into the internal
memory.
The burner proceeds with the ignition phase. If at the end of
the safety time the flame does not appear, the burner restarts
in automatic mode (it carries out a maximum of 3 attempts).
The indications of the sequence of the phases on the display
continue to blink to signal that we are still in the start-up proce-
dure (manual operation).
If ignition is still not achieved, it may be that gas is not reach-
ing the combustion head within the safety time period of 3 sec-
onds.
Turn the screw V1 of the gas valve lightly towards the “+” sign
(Fig. 170 at page 57). If, however, at the end of the safety time
the burner starts but then switches off, the burner goes into
lockout and the display shows
Loc:7
blinking (disappearance
of the flame when in operation).
Press “
i/reset
”, the display shows
400:Set
. Exit the manual
operation mode by several times pressing “
ESC
” (press the
keys “+” and “-” contemporaneously). The display shows
Loc:7
fixed. Press “
i/reset
” to unblock the LME7.
(List of error codes Tab. U at page 63).
OFF ON
RESET
POWER
CALL
FOR HEAT
ON
ALARM
NOISE
ALARM
SILENCE
VALVE
ON
PILOT
ON
Fig. 168
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