NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
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 (KFA50DGD/80DGD Models only).
- Turn fuel filter 90˚ to clockwise and pull to remove
(KFA135DGD/180DGD/220DGD 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, KFA135DGD/180DGD/
220DGD Models only)
- Remove Pressure Gauge Plug from End Filter Cover.
(KFA50DGD/80DGD 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)
MODEL
KFA50DGD
KFA80DGD
KFA135DGD
KFA180DGD
KFA220DGD
NOTE: USE ONLY ORIGINAL EQUIPMENT
REPLACEMENT PARTS.
Use of alternate or third party components will
void any warranty and may cause unsafe
operating condition.
Pump Pressure
High BTU level
Low BTU level
3.8 psi
3.8 psi
5.5 psi
6.5 psi
8.5 psi
KFA50DGD/80DGD Models Only
N/A
N/A
BTU Control Switch
3.5 psi
4.5 psi
6.5 psi
KFA135/180/220DGD Models only
13
Fuel Filter
Screw
Side Cover
Power Switch
Figure 19. Fuel Filter Replacement
Flat blade
Screw driver
End Filter Cover.
Pressure Gauge Plug
Pressure Gauge
Pressure Gauge
Figure 20. Adjusting Pump Pressure
Fuel line
Switch Wires
Relief Valve
Relief Valve