SAMUEL JACKSON HO-1-114, Руководство по обслуживанию, Страница: 25 / 36

PAGE 21 of 32 HO-1-1143 OIL-FIRED HEATER
© SAMUEL JACKSON, INCORPORATED, 2009 ALL RIGHTS RESERVED
Troubleshooting Guide, continued
If both motors are running but the burner will not ignite:
1. Check that the target temperature (SP) displayed on the digital temperature
controller is above the actual measured temperature PV (process variable). The
controller will only “call for heat” and start the burner when the process variable
is lower than the target.
2. Check that at least 100 PSI (6.9 bar) pressure is registering on the fuel nozzle
pressure gage. If no pressure is registering or the pressure is oscillating, the fuel
supply system is not primed. See “Priming the Fuel Pump” section in manual.
3. Press the red RESET on the heater’s Primary Burner Control. If the burner does
not light, check the following:
•
Fuel in supply tank
•
Fuel filters are clean
•
Igniter electrodes are adjusted correctly
•
Fuel nozzle and filter are in good shape
•
Burner air shutters and nozzle line adjustment plate are adjusted correctly
•
After checking all the above and lockout continues to occur without an
obvious reason, consult the factory.
The burner is on, but the actual temperature remains below the target temperature:
1. The fuel nozzle pressure probably needs adjusting. The normal range for the
nozzle pressure is 100 to 200 PSI (6.9 to 13.8 bar). See “Adjusting Fuel Pressure
for Heat Output from Burner” for more information.
The burner is on but there is excessive smoke in the outlet air:
1. Check that the nozzle pressure is between 100 to 200 PSI (6.9 to 13.8 bar).
2. Check that the burner air shutters and nozzle tube assembly adjustment plate are
adjusted according to this manual.
3. Replace the oil nozzle with Part No. 23263 nozzle stamped 3.50.
4. Check the static air pressure at the outlet of the heater. A positive pressure here is
ok but a negative static pressure below -0.8 inches water column may not be.
Consult the factory.
5. Check that the 22760 or 23261 Ceramic Firebox Liner is intact.
6.
Check that only diesel, No. 2 fuel oil or kerosene is being used for fuel. Consult
the factory for special adjustments if you plan to operate the burner on kerosene.