Desa 000 50 Benutzerhandbuch

11

099176

1. Remove pressure gauge plug from

filter end cover.

2. Install accessory pressure gauge

(part number HA1180).

3. Start heater (see Operation, page

7). Allow motor to reach full speed.

4. Adjust pressure. Turn relief valve

to right to increase pressure. Turn
relief valve to left to decrease
pressure. See specifications at right
for correct pressure for each model.

5. Remove pressure gauge. Replace

pressure gauge plug in filter end
cover.

Relief
Valve

Pressure
Gauge
Plug

(35/50/55/70,000 BTU/Hr Models Shown)

35,000 BTU/Hr

3.0 PSI

50,000 BTU/Hr

3.6 PSI

55,000 BTU/Hr

3.4 PSI

70,000 BTU/Hr

4.0 PSI

100,000 BTU/Hr

4.0 PSI

110,000 BTU/Hr

4.5 PSI

150,000 BTU/Hr

5.0 PSI

Pressure
Gauge

Upper
Fuel
Line

100 FUEL FILTER REMOVAL

PFA/P 041

Fuel Filter, Bushing,
and Lower Fuel Line

1. Remove side cover screws using

5/16" nut-driver.

2. Remove side cover.
3. Pull upper fuel line off fuel filter

neck.

4. Carefully pry bushing, fuel filter,

and lower fuel line (100/110/
150,000 BTU/Hr models only) out
of fuel tank.

5. Wash fuel filter with clean fuel and

replace in tank.

6. Attach upper fuel line to fuel filter

neck.

7. Replace side cover.

Fuel Filter

Side Cover

Upper Fuel Line

Side Cover

Air Line
Hose

Burner
Strap

Spark Plug
Wire

Nozzle Assembly

Fuel Line Hose

Spark
Plug

Spark Plug
Mounting Nut

Combustion
Chamber

Bend Here
to Adjust
Gap

.055" Gap

1. Remove upper shell (see page 10).
2. Remove fan (see page 10).
3. Remove fuel and air line hoses

from nozzle assembly.

4. Remove spark plug wire from

spark plug.

5. Remove two (2) screws using 5/

16" nut-driver and remove burner
strap.

6. Place hex-body of spark plug into

vise and tighten.

7. Remove spark plug mounting nut

using 11/16" open-end wrench.

8. Remove burner strap from spark

plug.

9. Clean and regap spark plug

electrodes to .055" gap.

10.Replace burner strap onto spark

plug. Rotate burner strap to
position spark plug electrodes (see
Figure 19, page 12).