13
H.) FUEL FILTER
CLEAN OR REPLACE TWICE A HEATING
SEASON OR AS NEEDED.
- Remove side cover screws using medium phillips
screwdriver.
- Disconnect switch wires from power switch and
remove side cover.
- Pull fuel line off fuel filter neck.
- Turn fuel filter 90˚ to counter clockwise and pull to
remove (KFA50H/80H Models only).
- Turn fuel filter 90˚ to clockwise and pull to remove
(KFA135H/220H Models only).
- Wash fuel filter with clean fuel and replace in tank.
- Attach fuel line to fuel filter neck.
- Replace switch wires to power switch.
- Reinstall side cover.
I.) PUMP PRESSURE ADJUSTMENT
NOTE: If the pump pressure needs to be adjusted,
make sure the heater is running on the
HIGH BTU setting.
- Push the BTU CONTROL Switch to HIGH.
(See Operation, page 8, KFA220H Model only)
- Remove Pressure Gauge Plug from End Filter Cover.
Install accessory Pressure Gauge.
(KFA50H/80H Models only)
- Start heater (See Operation, page 8)
Allow motor to reach full speed
- Adjust pressure (Using a flat blade screwdriver) Turn
relief valve to clockwise to increase pressure. Turn
relief valve to counter clockwise to decreasepressure.
- Stop heater (See Operation, page 8)
NOTE: USE ONLY ORIGINAL EQUIPMENT
REPLACEMENT PARTS.
Use of alternate or third party components will
void any warranty and may cause unsafe
operating condition.
MODEL
Pump Pressure
High BTU level Low BTU level
KFA50H
3.8 psi
N/A
KFA80H
3.8 psi
N/A
KFA135H
5.5 psi
N/A
KFA220H
8.5 psi
6.5 psi
Figure 19. Fuel Filter Replacement
Figure 20. Adjusting Pump Pressure
Fuel Filter
Fuel Line
Switch Wires
Screw
Side Cover
Power Switch
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
Flat blade
Screw driver
KFA50H Model Only
KFA80H/135H
Models Only
KFA220H
Model Only
Relief Valve
Relief Valve
Relief Valve
Pressure Gauge
Pressure Gauge
Pressure Gauge
Pressure Gauge Plug
End Filter Cover.
BTU Control Switch