
(Pump Rotor, continued)
10.Install blades, pump plate, air filters, and filter end cover.
11.Replace fan guard and upper shell.
12.Adjust pump pressure (see page 11).
Note: If rotor is still binding, pro- ceed as follows.
13.Perform steps 1 through 6 (see page 12).
14.Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” mo- tion four times (see Figure 18).
15.Reinstall insert and rotor.
16.Perform steps 10 through 12 above.
SPECIFICATIONS
WIRING
DIAGRAM
TECHNICAL
SERVICE
12
Gap Adjusting Screw  | 
  | 
.003"/.004" Gap  | Sandpaper  | 
Measured With  | 
  | 
Feeler Gauge  | 
  | 
Blade  | 
  | 
Rotor  | 
  | 
Gap Adjusting Screw  | Figure 18 - Sanding Rotor | 
  | |
Figure 17 - Gap Adjusting Screw Locations | 
  | 
Output Rating (Btu/Hr.)  | 50,000  | 
Fuel  | Use Only Kerosene  | 
  | or No. 1 Fuel Oil  | 
Fuel Tank Capacity (U.S. Gal.)  | 4.0  | 
Fuel Consumption (Gal. Per Hr.)  | .40  | 
Electric Requirements  | 120 V/60 Hz  | 
Amperage (Normal Run)  | 2.0  | 
Motor RPM  | 1725  | 
Hot Air Output (CFM)  | 175  | 
Air Pump Pressure (PSI)  | 3.4  | 
Shipping Weight (Approximate Pounds)  | 35  | 
Heater Weight Without Fuel (Approximate Pounds)  | 30  | 
Power Plug 120V 60HZ
  | 
  | 
  | White  | 
  | Black  | 
  | 
  | 
  | |
  | 
  | 
  | 
  | 
  | Green  | 
  | 
  | 
  | |
  | 
  | White  | 
  | 
  | White  | B  | 
  | ||
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | ||
  | Green  | White  | 
  | 
  | 
  | 
  | Flame  | 
  | |
  | 
  | Terminal  | White  | Blue  | Blue  | 
  | |||
  | Spark Plug  | Out  | Reset  | ||||||
Motor  | Ignitor  | ||||||||
  | Board  | 
  | 
  | 
  | Control  | Button  | |||
  | 
  | 
  | 
  | Photocell  | |||||
  | 
  | Red  | 
  | 
  | 
  | 
  | |||
  | 
  | 
  | Red  | 
  | R  | 
  | |||
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | ||
  | 
  | Red  | 
  | 
  | 
  | 
  | 
  | 
  | |
Figure 19 - Wiring Diagram
You may have further questions about operation or troubleshooting. If so, contact DESA International's Technical Service Dept. at 
102016