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Only use authentic SunFire parts. Inspect the nozzle adapter before replacing the nozzle. If the
threads have been damaged or show score marks, replace the entire nozzle-line assembly.
Contact your local SunFire dealer or SunFire technical service for assistance.
BURNER SERVICE (CONT.):
7. Using a 5/8” wrench, remove the nozzle, replace
it with a new SunFire-OEM nozzle, and tighten
the nozzle to 20 ft lb of torque to ensure a tight
seal but avoid damage due to overtightening.
Also, take care not to damage or disturb the
igniter electrodes or metal spinner fins during this
process. With the new nozzle in place, ensure that
the electrode tips are aligned with the face of the
nozzle. Use a slotted screwdriver or 1/4” driver
to adjust the screw on the top of the electrode
assembly to reposition the electrode, if necessary.
Use a soft, damp rag to wipe any carbon buildup
from the spinner and electrode.
If the electrode shows signs of damage or wear, replace the electrode assembly before
resuming operation of the unit.
TO SERVICE THE BURNER ASSEMBLY (CONT.):
Use care when tightening the oil line fitting to oil tube extension. Tighten securely,
but do not crossthread or overtighten.
When inspection and service of the burner components has been completed, reverse the disassembly
process and return all assemblies to their factory position before resuming normal operation.
Confirm that the electrode tines are positioned properly before returning the nozzle subassembly to the burner.
REPACE NOZZLE
0.353”
9 mm
Electrode Flush with
Face of Nozzle
ELECTRODE: SIDE VIEW
3/32”
2.4 mm
Adjustment
Screw
ELECTRODE: TOP VIEW
NOTICE
GENERAL MAINTENANCE:
Inspect the heater for damage and wear before each use. Do not attempt to operate a damaged
heater. To make inspection easier, regularly use a soft, damp rag to clean the heater.
Seasonally, or after heavy use or transit, inspect the fasteners and connections, especially around the dome
face and fuel hoses, and tighten any fasteners, hoses, or wires that may have loosened.
WARNING
!
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