How to Guide

English
6
ADJUSTMENT PROCEDURE
1. Fill fuel tank.
2. Start heater.
3. Locate the pressure adjustment screw, located on the back of the power pack assembly
and accessible by the handle of the heater.
4. Remove the rubber cap over the fuel pressure adjustment screw.
5. Using a at bladed screw driver, turn the pump pressure adjustment screw:
• clockwise to increase pump pressure
• counter-clockwise to decrease pump pressure
By using the installed pressure gauge (if equipped) you may quantitatively calibrate the
pressure. The manufacturer’s recommended pump pressures are in the specications
chart on page 3.
6. The desired qualitative burner characteristics are that the nose cone in the combustion
chamber should be cherry red with no dark spots and the ame should not extend
beyond the nose cone.
IMPROPER PRESSURE ADJUSTMENT
Problem: Heater does not have a strong consistent ame.
Heater smokes and spits raw fuel.
Nose cone does not get cherry red.
Adjustment: Pump pressure is too low.
Turn adjustment screw clockwise to increase pump pressure
Problem: Flame extends beyond the end of the heater.
Adjustment: Pump pressure is too high.
Turn adjustment screw counter clockwise to decrease pump pressure.
Daily Maintenance Schedule
1. GENERAL. Make general visual inspection of heater for loose or damaged parts.
Check nuts and bolts to insure against looseness caused by vibration or rough
handling. Damaged parts should be repaired or replaced before using heater
again. Check heater operation to be sure it is operating normally (See “Servicing”
section for description of normal operation).
2. FILTERS. Dirty air or fuel lters will cause an imbalance in the air-fuel mixture. The
best indication that this condition exists is an increase in odors or difculty getting
your heater to ignite. This heater should never be operated without the lters
in place. If required, clean lters as described under “500 Hours” and “Annual
Schedules”.
500 Hour Maintenance Schedule
1. AIR INTAKE FILTER. Remove and wash the lter element with a mild detergent,
dry thoroughly and replace. Do not oil the lter element. If your heater is
used where there is considerable dust or dirt, clean as often as necessary
(approximately every 50 hrs.).
2. REMOVE DUST. Clean heater twice a season (more often under dusty conditions).
Remove accumulated dust from the transformer, burner, motor and fan blades
with compressed air. Wipe area clean with a clean dry cloth. Inspect area to insure
all foreign materials are removed, especially around the burner and combustion
area. Safety glasses should be worn when using compressed air.
3. CAD CELL. Clean the glass portion of the cad cell with a soft dry cloth.
4. NOZZLE. Accumulation of dirt from fuel and carbon from the compressor vanes
will eventually ll up the passages in the nozzle, resulting in reduction of fuel
and air ow. Pressure will gradually increase giving improper fuel-air mixture and
excess odor and smoke. If this occurs, replace the fuel nozzle.
5. FUEL TANK. Clean twice a season (during frequently used periods, clean twice a
month). Drain and ush the fuel tank with clean fuel oil. Make sure to dispose of
waste fuel properly.
Annual Maintenance Schedule
1. AIR OUTPUT FILTER. Remove the air output lter and tap the contaminated side
gently on a solid object to remove contaminates. Compressed air or liquids should
not be used to clean this lter. Reinstall cleaned lter in lter body in the same
position as it was when removed. If the lter appears extremely dirty, replace it
with a new lter of the same type. When replacing the lter cover, be sure the
gasket is rmly in place and the screws in the lter cover are tight to prevent air
leaks.
2. FUEL FILTER. Remove the fuel lter from fuel line and direct compressed air
through the lter in the opposite direction of fuel ow. Safety glasses should be
worn when using compressed air.
3. AIR AND FUEL LINES. If the air or fuel lines are removed during cleaning, be sure
all connections are tight before operating unit.