55
®
LOCKOUTS
When a safety shutdown occurs, the control will indicate through the LED’s the reason for the lock-
out and if equipped will display a lockout message and when in the cycle the lockout occurred. The
alarm circuit (Terminal “A”) will be energized. The non-volatile memory will remember the status
of the control even if a power failure occurs. By momentarily depressing and releasing the reset but-
ton on the control or the display keypad, the control can be reset. The button must be held down for
one second and then released. Very little force is required to do this. Do not press hard.
SAFETY SHUTDOWN
1.
If the running interlock circuit (3-P) does not close, the control will lockout and the blower
motor will be de-energized.
2.
If the fuel valve end switch or proof of closure switch connected to Terminal 13 opens during
standby or purge, the control will lockout.
3.
If the running interlock circuit (3-P) opens during a start-up or firing period, all fuel valves will
be de-energized and the control will lockout.
4.
If the proven high fire circuit (M-8) has not closed after a ten (10) minute “Hold” period at the
start of prepurge, the control will lockout.
5.
If the low fire start circuit (M-D) has not closed after a ten (10) minute “Hold” period at the end
of prepurge, the control will lockout.
6.
a.) If PROVE 3-P OPEN is selected as YES, and the 3-P circuit is closed at the start of the oper-
ating cycle, the control will hold for thirty (30) seconds waiting for the 3-P circuit to open. If,
after thirty (30) seconds, the 3-P circuit does not open, the control will lockout.
b.) If PROVE M-8 OPEN is selected as YES, and the M-8 circuit is closed at the start of a cycle,
the control will hold for thirty (30) seconds for it to open. If, after thirty (30) seconds, the M-8 is
still closed, the control will lockout.
c.) If PROVE M-D OPEN is selected as YES, and the M-D switch is closed at the end the high
fire purge cycle, the control will hold for thirty (30) seconds for it to open. If, after thirty (30)
seconds, the M-D is still closed, the control will lockout.
d.) If PROVE M-D TFI is selected as YES, the low fire start switch located between terminals
M-D must be closed during PTFI and MTFI.
7.
If pilot flame is not detected after the pilot trial for ignition period, the pilot valve and ignition
transformer will be de-energized and the control will lockout on safety.
8.
If main flame is not detected during the main flame trial for ignition period for one FFRT, all
fuel valves will be de-energized and the control will lockout on safety.
9.
If the main flame fails during a firing cycle, all fuel valves will be de-energized within 1 FFRT
and the control will lockout on safety.
10.
If flame is detected when the operating control (L1-3) is open, the control will wait sixty (60)
seconds and then lockout if flame is still present. If the operating control closes and flame is
detected during purge, the control will drop back to Standby position and de-energize the blower
motor (Term M). If the flame signal goes away within sixty (60) seconds, the control will pro-
ceed with a normal start-up. If flame signal is still present after sixty (60) seconds, the control
will lockout.
11.
If the fuel valve end switch connected to Terminal 13 is not closed after 5 seconds into post
purge, the control will lockout on safety.
PROVING 3-P CLOSED
On cycle start the BurnerLogix proves the 3-P running interlock circuit closed in the following
manner:
1. At cycle start (L1-3 closes), if the M-8 damper switch is closed, the pre-purge period
begins and the BurnerLogix will wait up to 20 seconds for the 3-P circuit to close.
2. At cycle start (L1-3 closes), if the M-8 damper switch is open, the BurnerLogix will wait
up to 10 seconds for the 3-P circuit to close after the M-8 circuit closes. Pre-purge timing
begins after the M-8 closes circuit closes.
Summary of Contents for BurnerLogiX BLL510
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