Fulton Caliber (CAL) Condensing Hydronic Boiler - Manual (Page 38)

© The Fulton Companies 2014
OPERATION
CAL-IOM-2013-1001
SECTION 3
3-4
!
WARNING
Non-Fulton product information is for
reference purposes only. No Fulton
document should substitute for full
review of documentation available
from the component manufacturer.
4
CAUTION
After checking controls by manual
adjustment, make sure they are always
reset to their proper settings.
Use only your hand to turn the valve
handle. Never use tools. If the knob
will not turn by hand, don’t try to
repair it. Call a qualifi ed service
technician. FORCE OR ATTEMPTED
REPAIR MAY RESULT IN A FIRE OR
EXPLOSION.
boiler locks out. This condition has to be manually reset. Alter the high
limit setpoint temperature to normal level, typically 10-20 degrees above
set point.
Perform Test of Low Gas Pressure Switch
Test the low gas pressure switch as follows:
1. With the boiler running increase the low gas pressure setpoint until a lock
out is annunciated.
2. Reset the switch to normal level.
3. Restart the boiler.
Perform Test of High Gas Pressure Switch
Test the high gas pressure switch as follows:
1. Close the downstream main gas cock and start the boiler.
2. Once the trial for ignition period is reached, the main gas valve will open,
pressurizing the line. This will trip the high gas pressure switch.
3. Manually reset the high gas pressure switch after it trips.
Perform Test of Air Switch
Fire the boiler and test the air switch as follows:
1. At low fi re turn the adjustment on the switch clockwise until the switch
trips and the boiler shuts down.
2. Back out the adjustment to previous position.
Test of High Back Pressure Switch
Fire the boiler and test the high back pressure switch as follows:
1. At high fi re, turn the adjustment on the switch toward the low end of the
scale until it opens and the boiler shuts down.
2. Set the scale to 50% above the point at which the switch opened in Step 1.
Normal Operation of the Boiler
Under normal operating circumstances, this boiler functions as a fully automatic
appliance. The automatic control senses the water outlet temperature and
fi res the boiler when heat is needed by the system. Additionally this boiler may
function as part of an integrated building management system.
Excessive cycling will reduce the useful life of any piece of mechanical