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45/80 LP SIDE
LP-PFA/OV 001A
Air For Combustion
And Heating
Fuel
Combustion
Chamber
DSI
Nozzle
Figure 3 - Cross Section Operational View (80,000 BTU/Hr Model Shown)
Clean
Heated
Air Out
(Front)
Cool Air In
(Back)
THEORY OF
OPERATION
The Fuel System: The hose/regulator assembly attaches to the propane gas
supply. The propane gas moves through the solenoid valve and out the nozzle.
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 direct spark ignitor (DSI) sends voltage to the spark
plug/ignitor. The spark plug/ignitor ignites the fuel and air mixture.
The Safety Control System: This system causes the heater to shut down if the
flame goes out.
Fan
Motor
Power
Cord
Hose/Regulator
Assembly
On/Off Switch
Solenoid
Valve
Note:
Some parts are located differently on some models.
Spark Plug/Ignitor
UNPACKING
1. Remove all packing items applied to heater for shipment. Keep plastic cover
caps (attached to inlet connector and hose/regulator assembly) for storage.
2. Remove all items from carton.
3. Check all items for shipping damage. If heater is damaged, promptly inform
dealer where you bought heater.