Air Output, Air Intake, and Lint Filters
1.Remove upper shell (see page 10).
2.Remove filter end cover screws using 5/16" nut- driver.
3.Remove filter end cover.
4.Replace air output and lint filters.
5.Wash or replace air intake filter (see Preventative Maintenance Schedule, page 8).
6.Replace filter end cover.
7.Replace fan guard and upper shell.
IMPORTANT: Do not oil
filters.
Pump Pressure
Adjustment
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.
Air Intake Filter
Filter End
Cover
Lint Filter
Air Output
Filter
Fan Guard
(100,000 BTU/Hr
Model Shown)
Figure 11 - Air Output, Air Intake, and Lint Filters
(150,000 BTU/Hr Model Shown)
Relief
Valve
Pressure Gauge Plug
| 125 PRESSURE ADJUSTMENT Plug |
| Figure 12 - Pressure Gauge Plug Removal |
| Pump |
Model | Pressure |
100,000 BTU/Hr | 4.0 PSI |
150,000 BTU/Hr | 5.0 PSI |
| Pressure |
| Gauge |
Figure12513PRESSURE- Adjusting ADJUSTMENTPump Pressure
13
