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116170-01A 15
www.desatech.com
Gap Adjusting Screw
Rotor
Blade
.003"/.004"
(.076-.101 mm)
Gap Measured
With Feeler
Gauge
Gap Adjusting Screw
Figure 30 - Gap Adjusting Screw
Locations
Sandpaper
Figure 31 - Sanding Rotor
Note: If rotor is still binding, proceed as
follows.
13. Perform steps 1 through 6.
14. Place fine grade sandpaper (600 grit) on flat
surface. Sand rotor lightly in “figure 8” motion
four times (see Figure 31).
15. Reinstall insert and rotor.
16. Perform steps 10 through 12.
Figure 32 - Replacing Fuse
Fuse Clips
Fuse
Fuse
Cover
SPECIFICATIONS
Model Size 40 55 70 115 165
Output Rating (Btu/Hr) 40,000 55,000 70,000 115,000 165,000
Fuel Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels*
Fuel Tank Capacity
(U.S. Gal./Liters) 3/11.3 5/18.9 5/18.9 9/34 13.5/51
Fuel Consumption
(Gal. Per Hr/Liters Per Hr) .3/1.14 .44/1.67 .52/1.97 .85/3.00 1.2/4.54
Pump Pressure (psi) 3.0 3.4 4.7 5.1 5.6
Electric Requirements 120 V/60 HZ (Same All Models)
Amperage (Normal Run) 2.0 2.0 2.8 3.6 3.6
Motor RPM 1725 1725 3440 3440 3440
Hot Air Output (CFM) 170 180 360 490 575
Shipping Weight 32/14.5 35/15.9 35/15.9 54/24.5 65/29.5
(Approximate lbs./kg)
Heater Weight without Fuel 28/12.2 30/14 30/14 46/21 55/25
(Approximate lbs./kg)
* Use of #2 diesel & fuel oil will result in noticeable odor and could require additional fuel filter main
-
tenance. Use in extreme cold temperatures may require nontoxic anti-icer additives.
SERVICE PROCEDURES
Continued
IGNITION CONTROL ASSEMBLY
WARNING: High voltage!
1. Unplug heater.
2. Remove side cover screws (4) using 5/16" nut-
driver to expose ignition control assembly.
3. Remove fuse cover (see Figure 32).
4.
Remove fuse from fuse clips (see Figure 32).
5. Replace fuse with fuse of the same type and
rating (GMA-10). Do not substitute a fuse
with a higher current rating.
6. Replace fuse cover (see Figure 32).
7. Replace side cover (see Figures 19 or 20,
page 11).