103615
10
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
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 5). 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 specifica-
tions below for correct pressure for each model.
5.
Remove pressure gauge. Replace pressure gauge plug in filter
end cover.
Figure 16 - Air Output, Air Intake, and Lint Filters, 35/70,000 Btu/
Hr Models
Figure 18 - Pressure Gauge Plug Removal
Pressure
Gauge
Plug
Pressure
Gauge
Figure 19 - Adjusting Pump Pressure
Pump
Pressure
Model
(PSI/Bar)
35,000 Btu/Hr
2.9/0.200
70,000 Btu/Hr
5.2/0.359
100,000 Btu/Hr
3.9/0.269
150,000 Btu/Hr
4.8/0.331
Relief
Valve
SERVICE PROCEDURES
Continued
Air Intake Filter
Lint Filter
Filter End
Cover
Air Output
Filter
Fan Guard
Air Intake Filter
Filter End
Cover
Lint Filter
Air Output
Filter
Figure 17 - Air Output, Air Intake, and Lint Filters, 100/150,000
Btu/Hr Models
Fan Guard
SERVICE PROCEDURES
