24
maintenance
NOTICE
To remove the filter from model HK070F, turn filter 90° clockwise. To
remove the filter from models HK125FW/HK175FW/HK215FW, turn
filter 90° counter-clockwise.
FUEL FILTER:
The Fuel Filter should be cleaned at least twice per heating season
by rinsing it in clean 1-K kerosene. Contaminated fuel could make this
necessary immediately.
Use of diesel may require additional maintenance.
Improper
maintenance can lead to poor combustion and soot production!
FUEL FILTER:
The Fuel Filter should be cleaned at least twice per heating
season by rinsing it in clean 1-K kerosene. Contaminated fuel
could make this necessary immediately (See
Figure 19
).
NOTE:
To remove the filter from models PT-45 / 70T-KFA, turn
filter 90° clockwise. To remove the filter from models PT-125T /
175T / 215T-KFA, turn filter 90° counter-clockwise.
Use of diesel may require additional maintenance.
Improper
maintenance can lead to poor combustion and soot
production!
PUMP PRESSURE ADJUSTMENT:
While heater is operating, turn relief valve clockwise to increase,
counterclockwise to decrease (see
Figure 20
). Use flat blade
screwdriver to turn valve. Correct pump pressure is as follows:
For best measurement of pressure, test with full tank of
fuel.
Optimum pressure occurs when the nose cone is
cherry red and there are no extending flames from the
heater.
NEVER LEAVE HEATER
UNATTENDED WHILE BURN-
ING OR WHILE CONNECTED
TO A POWER SOURCE
© 2012, Pinnacle Products International, Inc.
11
Kerosene User’s Manual
Maintenance (Continued)
Photocell
Wire
except
PT-45-KFA
Circuit Board
Figure 18:
Photocell Position in Heater
Side Cover
Screw
Power Switch
Power Switch Wire
Circuit Board
Fuel Filter
Photocell Wire
Fuel Line
Figure 19:
Fuel Filter Replacement
Model #
Pump Pressure
PT-45-KFA
3.0 PSI
PT-70T-KFA
4.0 PSI
PT-125T-KFA
5.0 PSI
PT-175T-KFA
7.5 PSI
PT-215T-KFA
9.0 PSI
Tolerance ± 10%
Adjusting
Screw
Figure 20:
Pump Pressure Adjustment
