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5
English
Fan Blades
Blades should be cleaned at least once per heating season,
depending on conditions. Remove all accumulated dust
and dirt with a damp cloth, taking care not to bend any of
the fan blades. Be sure the blades are dry before re-starting
the heater.
Fuel Filter (Fig. B)
The fuel filter should be cleaned at least twice per heating
season. Clean the filter by rinsing it in clean K-1 Kerosene.
Contaminated fuel could make cleaning the fuel filter
necessary immediately.
nOTE: To remove the filter, turn the filter 90º clockwise.
Thermistor Placement
Ensure the thermistor wire is in the proper place. The wire
should be lying on the bottom shell inside the heater with
the plastic end placed under the motor support/motor
and away from fan blade.
Rotor
The rotor with carbon vanes should be evaluated every
heating season. The rotor is behind the air filters. The vanes
should be inspected for damage or wear. The rotor should
be inspected for damage, chips, wear, cracks..
Check Rotor Gap
Remove the rear cover. Loosen the two pump ring screws.
Lift the pump ring upwards. Insert a 0.1 mm feeler gauge
and apply slight downward pressure, enough to offer
resistance when attempting to remove gauge. Hand-
tighten the two pump ring screws. Re-install the End Pump
Cover and the plastic End Filter Cover. Start the heater and
adjust to the proper pump pressure.
Spark Plug (Fig. C)
Clean and re-gap every 600 hours of operation, or replace as
needed. After removing the spark plug, clean the terminals
with a wire brush. Re-gap the terminals to 0.140” (3.5mm).
Photocell (Fig. D)
The photocell should be cleaned using a cotton swab
dipped in alcohol or water at least once per heating season,
or more depending on conditions.
Pump Pressure (Fig. E)
While heater is operating, turn adjusting screw clockwise to
increase, counter-clockwise to decrease pressure. Correct
pump pressure is as follows:
MODEl nUMBER PUMP PREssURE
CMXEHAP80TKFA 3.8 PSI (0.26 BAR)
Tolerance ± 10%
Nozzles (Fig. F)
Nozzles should be cleaned or replaced at least once
per heating season. Contaminated fuel could make this
necessary immediately. To clean dirt from nozzle, blow
compressed air through nozzle front. It may be necessary to
soak the nozzle in K-1 kerosene to loosen any dirt particles.
Air Output Filter
Intake Filter
Lint Filter
End Filter
Fig B
Fig. C
Ignitor Wire
Spark Plug
Gap
Burner Head
X
X
Fig. D
Photocell
Photocell lens
Photocell
Wire
Fig. E
Adjusting Screw
Pressure Valve
Fig. F
Nozzle
Nozzle Face
Burner Head
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