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Les langues disponibles
Les langues disponibles
t2', t3', t3':
E
These times are valid only for series 01 or LFL1.335, LFL1.635,
LFL1.638 burner control and command equipment.
N
They are not valid for types of Series 032, since they involve
simultaneous activation of cams X and VIII.
G
L
Working
The above diagrams illustrate both the connection circuit and
I
the sequencer mechanism control program.
S
A
Consensus for start-up by means of installation thermostat or
H
pressure switch "R".
A-B Start-up program
B-C Normal burner operation (on the basis of "LR" power regulator
control commands)
C
Stop controlled by "R"
C-D Return of programmer to start-up position "A", post-ventila-
tion.
During periods of inactivity of the burner, only the command outputs
11 and 12 are powered, and the air damper is in the CLOSED po-
sition, determined by limit switch "z" of the air damper servo motor.
During the probe test and false flame test, the flame supervision
test is also powered (terminals 22/23 and 22/24).
Safety standards
•
In association with the use of QRA..., earthing of terminal
22 is compulsory.
•
The power cables must conform to existing national and
local standards.
•
LFL1... is a safety device, and it is therefore forbidden to
open it, tamper with it or modify it!
•
The LFL1... device must be completely insulated from the
mains before carrying out any operations on it!
•
Check all the safety functions before activating the unit or
after replacing a fuse!
•
Provide protection against electric shock on the unit and
all electric connections. This is ensured by following the
assembly instructions correctly!
•
During operation and maintenance, prevent infiltration of
condensate into the command and control equipment.
•
Electromagnetic discharges must be checked on the appli-
cation plan
.
Control program in the event of stopping, indicating position
of stop
As a rule, in the event of any kind of stop, the fuel flow is cut off
immediately. At the same time, the programmer remains immobile,
as does the switch position indicator. The symbol visible on the
indicator reading disk indicates the type of fault.
All manuals and user guides at all-guides.com
P
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0006080118_200811
No start-up, because of failure in closing of a contact
or lock-out stop during or at the end of the command
sequence because of external lights (for example: flames
not extinguished, loss at the level of the fuel valve, defects
in the flame control circuit, etc.)
Start-up sequence stops, because the OPEN signal
was not sent to terminal 8 by limit switch contact "a".
Terminals 6, 7 and 15 remain powered until the defect
is eliminated.
Lock-out stop, because of lack of air pressure signal.
Any lack of pressure from this moment onwards will
cause a lock-out stop!
Lock-out stop because of flame detection circuit mal-
function.
Start-up sequence stops, because the position signal
for low flame was not sent to terminal 8 by auxiliary switch
"m". Terminals 6, 7 and 15 remain powered until the fault
is eliminated.
Lock-out stop, due to lack of flame signal at the end of
the first safety time.
Lock-out stop, because no flame signal was received
at the end of the second safety time (main flame signal
with pilot burners at intermittent operation).
Lock-out stop, due to lack of flame signal during burner
operation.
If a lock-out stop occurs at any moment between the start
and pre-ignition without a symbol, the cause is generally to be
attributed to a premature or abnormal flame signal caused, for
example, by self-ignition of a UV tube.
Stop indications
LFL ..., Series 01
a-b
Start-up program
"Trips" (without contact confirmation)
b-b'
b(b')-a
Post-ventilation program
LFL ..., Series 02
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