NEVER LEAVE HEATER
UNATTENDED WHILE BURN-
ING OR WHILE CONNECTED
TO A POWER SOURCE
Maintenance (Continued)
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:
Model #
HS-4 5 - K F
A
HS-7 0 T
-K F A
HS-12 5 T
-K F A
HS-17 5 T
-K F A
HS-2 1 5 T
-K F A
Tolerance ± 10%
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.
Pump Pressure
3 . 0 PSI
4 . 0 PSI
5 . 0 PSI
7 . 5 PSI
9 . 0 PSI
Pinnacle Products International, Inc. Kerosene User's Manual
Forced Air Heaters
Adj u sting
Screw
Figure 20. Pump Pressure Adj u stment
Kerosene
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