baltur BGN 200 LX, Инструкция по техническому обслуживанию, эксплуатации и установке

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Stop indications
NOTE:
With voltages at 60 Hz, the times are reduced by about 20%.
t2’, t3’, t3’:
These times are valid only for series 01 or LFL1.335, LFL1.635,
LFL1.638 burner control and command equipment.
They are not valid for types of Series 032, since they involve si
-
multaneous activation of cams X and VIII.
Working
The above diagrams illustrate both the connection circuit and the
sequencer mechanism control program.
A Consensus for start-up by means of installation thermostat or
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-ventilation.
During periods of inactivity of the burner, only the command
outputs 11 and 12 are powered, and the air damper is in the
CLOSED position, 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 lo
-
cal 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 assem
-
bly instructions correctly!
• During operation and maintenance, prevent infiltration of
condensate into the command and control equipment.
• Electromagnetic discharges must be checked on the applica
-
tion 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.
◄ 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 extin
-
guished, 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.
P 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 malfun
-
ction.
▼ 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.
1 Lock-out stop, due to lack of flame signal at the end of the
first safety time.
2 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.
LFL …, Series 01 LFL …, Series 02
a-b Start-up program
b-b’ “Trips” (without contact confirmation)
b(b’)-a Post-ventilation program