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PUMP PRESSURE:
While heater is operating, turn adjusting screw
clockwise to increase, counter-clockwise to
decrease pressure. Correct pump pressure is as
follows:
Model Number
FF45
FF70
FF125
FF175
FF215
Tolerance ± 10%
Pressure Valve
Figure 18
CONTROL PCB
POWER LAMP
CN2
BLACK
PHOTOCELL
BLACK
POWER
SWITCH
POWER
PLUG
BLACK
BLACK
AC 240V
WHITE
50Hz
GREEN
EARTH
Figure 20: FF45
© 2020, Lavorwash
NEVER LEAVE HEATER UNATTENDED WHILE BURNING OR
Pump Pressure
3.0 PSI / 0.21 BAR
4.0 PSI / 0.28 BAR
4.5 PSI / 0.31 BAR
7.5 PSI / 0.52 BAR
8.0 PSI / 0.55 BAR
Adjusting Screw
BLACK
RED
CN1
IGNITOR
RED
BLACK
(LED)
BLACK
FAN 1
PUMP
MOTOR
BLUE
FAN 2
GREEN
ACIN 1
EARTH
CDS
WHITE
ACIN 2
LIMIT
FUSE
CONTROL
5A/250AVC
YELLOW
WHITE
WHILE CONNECTED TO A POWER SOURCE
Maintenance
NOZZLES:
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
paraffin to loosen any dirt particles.
Nozzle Face
Figure 19
Wiring Diagram
SPARK PLUG
BLUE
RED
CAPACITOR
3.5UF/450VAC
PHOTOCELL
POWER
PLUG
AC 240V
50Hz
Figure 21: FF70 / FF125 / FF175 /
Kerosene Forced Air Heater User's Manual
11
Nozzle
CONTROL PCB
POWER LAMP
(LED)
MOTOR 1
MOTOR 2
THERMOSTAT
ACIN 2
(TEMP. CONTROL
CN3
CDS
CN2
R-TH
BLACK
BLACK
ROOM
SENSOR
BLACK
BLACK
POWER
LIMIT
FUSE
SWITCH
CONTROL
5A/250VAC
BLACK
ACIN 1
BLACK
YELLOW
WHITE
GREEN
WHITE
EARTH
FF215
Burner Head
*
BLUE: HK070F
FF70
RED: HK125FW / HK175FW /
FF125 / FF175 / FF215
HK215FW
*
BLACK
SPARK PLUG
CN1
IGNITOR
*
BLACK
ORANGE
BLACK
PUMP
MOTOR
PINK
WHITE
CAPACITOR
GREEN
3.5UF/450VAC
(FF70)
(HK070F)
EARTH
7uF/450VAC
(FF125)
(HK125FW)
(FF175)
(HK175FW)
(FF215)
(HK215FW)
WHITE
NOTE:
Models 125 / 175 / HK215FW-A
FF125, FF175, FF215
have a digital display.
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