9
Maintenance (Continued)
PUMP PRESSURE ADJUSTMENT:
While heater is operating, turn relief valve clockwise to
increase,
counterclockwise to decrease (see Figure 11). Use flat blade
screwdriver to turn valve. Correct pump pressure is as
follows:
Models
Pump Pressure
ABU0001
2
5.0Psi(0.36bar)
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.
Figure 11. Pump Pressure Adjustment
Wiring Diagrams
