THEORY OF OPERATION
The Fuel System: The hose/regulator assembly attaches to the propane gas supply. This provides fuel to the heater.
The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air.
The Ignition System: The piezo ignitor lights the burner.
The Automatic Control System: This system causes the heater to shut down if the flame goes out.
Combustion Chamber
Clean Heated 
Air Out (Front)
Air For Combustion
Fan
Motor
Cool Air In (Back)
Hose/
Regulator
Assembly
Air For Heating
Figure 2 - Cross Section Operational View
VENTILATION | |||
WARNING: Provide at least | |||
a 1.5 ft | 2 | (0.14 m | ) opening of |
| 2 |
| |
fresh, outside air while running | |||
heater. If proper fresh, outside | |||
air ventilation is not provided, | |||
carbon monoxide poisoning | |||
can occur. Provide proper fresh, | |||
outside |
| air ventilation before | |
running heater. |
| ||
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| ASSEMBLY | |
1.Remove screw from top of fan guard. Discard screw.
2.Insert nut clip (provided with handle) with flat side facing up through slot in top of shell. Align holes in nut clip with screw hole behind slot in top of shell. (see Figure 4).
Remove
Screw
3. | Place handle over hole and clip. Insert two | ||
| screws (provided with handle) through handle | ||
| and tighten into shell. Make sure rear screw | ||
| goes through shell and into fan guard. Tighten | ||
| screws firmly. | Nut Clip |
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| Slot | Shell |
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Flat Side Facing Up |
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Figure 4 - Installing Nut Clip | |
| Screws |
| Handle |
| Rear of |
Nut Clip | Heater |
| |
Figure 3 - Removing Screw from Top of |
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Fan Guard | Figure 5 - Attaching Handle |
4 | www.desatech.com |