FULTON Caliber Installation And Operation Manual page 47

SECTION 4
CAL-IOM-2012-1220
PROBLEM
Manual Reset limit device
trips
Power outage to the boiler
room
Gas Pressure alarm is
annunciated
High water temp alarm is
annunciated
Insu cient ow of heat
transfer medium causes
lock out
Low Air Flow Supply
High Back Pressure Switch
trip/boiler shutdown
Main fl ame failure during
fi ring period
Igni on Failure
Questions? Call (315) 298-5121, or visit us online at www.fulton.com
CAUSE
Manual Reset Limits include: Flame safeguard, high
or low gas pressure, high temperature limit
Entire boiler system is disabled and de-energized.
Either insu cient gas pressure or the gas pressure
to the manifold is too high for safe and proper
operation of the boiler. This shuts down the burner.
When gas pressure is restored, the annunciated
alarm will remain on and the boiler will remain
locked out until the gas pressure switch is manually
reset.
Boiler water has exceeded both the operating and
high-limit temperature. When the water temperature
falls below the high-limit temperature, the boiler will
remain locked out until the controller is manually
reset.
Boiler requires minimum ow; when required ow is
resumed, boiler will resume operation.
Low Air is annunciated if the air ow switch detects
low air ow through the boiler.
Excessive Vent Pressure
Main gas control valve is de-energized and the con-
trol goes into "lockout" mode. Flame failure occurs
and the indicator is illuminated.
If UV scanner does not detect the fl ame during the
4-second trial-for-igni on period, the gas valve and
spark igni on are de-energized. At this me a safety
lockout occurs.
MAINTENANCE
CHECK/SOLUTION
DO NOT reset without determining and correcting
the cause.
When power has returned, the boiler will restart
unless it was in lockout position at time of outage.
Locate cause and correct. In the event of a high
gas manifold pressure condition, quali ed service
personnel must correct the problem before
restarting the boiler.
Locate cause and correct. Once the SOLA control
is reset, the sequence returns to normal operation
provided that the other limits are satis ed.
Identify and correct.
The air switch has been factory set and should not
be adjusted in the fi eld.
An extended low air indica on does not mean that
the low air switch is defec ve.
Check that blower is powered and feedback plugs
are clipped into the blower.
Check that the burner is clean by observing
through the venturi. Check the blower purge speed
and low fi re speed is correctly displayed on the
touch screen.
Check for obstruc ons in the vent.
Check for obstruc ons in the air inlet.
This condi on will automa cally recycle, so
the boiler will try to relight. The vent and heat
exchanger should be checked for obstruc ons and
cleaned.
The programmer must be manually reset.
Iden fy and correct; reset via the SOLA Control.
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