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.
14
Air Intake Filter
Filter End
Cover
Fan Guard
Lint Filter
Air Output
Filter
Figure 20 - Air Output, Air Intake, and Lint Filters,
8,8/20,5 kW (30/70,000 Btu/Hr) Models
| Fan Guard |
Air Intake Filter | (26,4 kW [90,000 |
Filter End | Btu/Hr] Model |
Shown) | |
Cover |
|
Lint Filter
Air Output
Filter
Figure 21 - Air Output, Air Intake, and Lint Filters,
26,4/44 kW (90/150,000 Btu/Hr) Models
(8,8/20,5 kW [30/70,000 Btu/Hr] Models Shown)
Pressure | Relief |
Gauge | Valve |
Plug |
|
Figure 22 - Pressure Gauge Plug Removal
Pressure
Gauge
| Figure 23 - Adjusting Pump Pressure |
Model | Pump Pressure |
8,8 kW (30,000 Btu/Hr) | 17,93 kPa (2.6 PSI) |
20,5 kW (70,000 Btu/Hr) | 26,20 kPa (3.8 PSI) |
26,4 kW (90,000 Btu/Hr) | 30,34 kPa (4.4 PSI) |
44 kW (150,000 Btu/Hr) | 33,78 kPa (4.9 PSI) |
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