BASO BG1600M51EF-1AA - Manual (Page 11)

BG1600M51EF-1AA Universal Intermittent Pilot Ignition Control Installation Instructions 11
Sequence of Operation
The heating cycle starts when a call for heat from the
thermostat supplies 24VAC to the TH terminal. The
automatic vent damper (if used) is energized and
when fully open, turns on the power to the ignition
control. After a 1 second maximum diagnostic period,
the spark will start and the pilot valve will turn on,
starting the trial for ignition period.
During the trial for ignition period, the control sparks
for 4 seconds while rapidly flashing LED. It then turns
off the spark and LED for 1 second while checking
pilot flame sense. This cycle will repeat until pilot flame
is detected or trial time is over.
When pilot flame is detected, the spark will stop, main
valve will turn on and the LED will stay on
continuously. The control will remain in this state until
the pilot flame is lost or the call for heat ends. If pilot
flame is lost, LED, main and pilot valves are turned off
for 0.5 seconds and a new trial for ignition sequence
will start.
If pilot flame is not detected during the trial for ignition
period, the pilot valve will be shut off. The control will
wait for 5 minutes while blinking the LED at the end of
each 15 seconds. When the 5 minute period is over a
new trial for ignition sequence will start. The control
will recycle continuously until flame is proven or call for
heat ends.
Table 4: LED Indications During Normal Operation
Flash Code Flash Code Indication
Steady On Flame detected, main burner on
.1 Second On
.1 Second Off Trial time spark on trying to light
pilot burner
.5 Second
Every 15 Seconds In 5 minute recycle period
Troubleshooting
If the system does not function properly, determine the
cause using the procedures in this section.
Before proceeding with troubleshooting the system,
check the following.
Preliminary Checks
‰ Are all mechanical and electrical connections
tight?
‰ Is the system wired and ground correctly?
‰ Is gas inlet pressure per manufacturer’s
specifications?
‰ Is the system powered?
‰ Is the thermostat calling for heat?
!
WARNING: Risk of Personal Injury.
Do not place face, hands, or other parts of the body
in or near the burner area when the LED is flashing
(recycle mode). When the LED is flashing, the
control may at any time (while in the recycle mode)
re-energize the burner control system and ignite the
burner which may result in electric shock from
contact with the electrode or severe burn injury from
firing of the burner.