Filter
Top Products
9
104252
OWNER’S MANUAL
Air Output, Air Intake, and Lint
Filters
1. Remove upper shell (see page 8).
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 6).
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT:
Do not oil filters
Filter End
Cover
Air Output
Filter
Figure 11 - Air Output, Air Intake, and Lint Filters, 20,5 kW (70,000 Btu/Hr) Model
Air Intake Filter
Filter End
Cover
Air Output
Filter
Figure 12 - Air Output, Air Intake, and Lint Filters, 29,3 kW (100,000 Btu/Hr) Model
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 6).
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 pres-
sure for each model.
5. Remove pressure gauge. Replace pres-
sure gauge plug in filter end cover.
Fan Guard
Model Pump Pressure
20,5 kW (70,000 Btu/Hr) 34,50 kPa (5.0 PSI)
29,3 kW (100,000 Btu/Hr) 27,60 kPa (4.0 PSI)
Figure 13 - Pressure Gauge Plug Removal
Relief
Valve
(20,5 kW [70,000 Btu/Hr] Model Shown)
Figure 14 - Adjusting Pump Pressure
Pressure
Gauge
Lint Filter
Air Intake Filter
Fan Guard
Lint Filter
Pressure
Gauge
Plug
SERVICE
PROCEDURES
Continued
Continued