Honeywell Eclipse 90 Quick Start Manual page 4

2. Put the control in the pilot test mode. On the Veri-
Flame push the Test/Reset button in the Test position
(button in). On the Bi-Flame and Multi-Flame press
the Reset and Enter buttons together then release
the Reset and after a few seconds release the Enter.
3. Start the system normally. The control will hold the
operating sequence at the pilot flame step.
4. Measure the flame signal strength as described above.
5. Slowly reduce the pilot fuel until the signal drops out.
Increase the pilot fuel slightly and restart the system.
Observe the flame signal and adjust the pilot fuel as
required to prevent flame failure. This is the
minimum pilot.
6. Take the control out of the pilot test mode and begin
the start-up sequence again. On the Veri-Flame
push the Test/Reset button again so that it pops out
to the Run position. On the Bi-Flame and Multi-
Flame press the Reset button.
7. When the sequence reaches the main flame trial for
ignition, smoothly restore the fuel supply to the main
burner. If the main burner does not light within five
seconds, immediately shut off the burner fuel supply,
stop the control and purge the system. Attempt to
light the burner again before proceeding with
adjustments in the next step.
8. For burners with an adjustable scanner sighting
assembly, adjust the sighting assembly further away
from the nozzle of the pilot flame thus requiring a
larger minimum pilot for adequate signal strength. For
burners with fixed sighting, increase the pilot flame.
Repeat steps 1 through 8 until the main burner
lights off smoothly and reliably.
Ignition Interference Test
Test the effect of the ignition system (transformer, spark
plug, wiring and grounding) on the flame signal and
control. Ignition interference can decrease or increase
the flame signal strength or can cause erratic operation
of the control. The scanner placement on some burners
allows direct sighting of the spark, creating a strong but
false flame signal. The Eclipse flame control sequence
does not interrupt the spark upon flame detection until
after the trial for ignition period. Therefore spark
detection is not
interference should still be reduced or eliminated where
possible.
1. Manually shut off the fuel supply to the burner.
2. Start the system normally. Observe the flame signal
during ignition to see if it responds during the spark.
Readings above 2 VDC indicate spark interference
or spark sighting.
3. On pilot ignited burners, manually shut off the fuel
4
a problem; however
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supply to the main burner. For direct spark burners, lock
the burner firing-rate at the start position.
ignition
Eclipse 90° UV Scanner, V2, Instruction Manual 852, 5/26/2016
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