John Deere AC-155LP - Manual (Page 11)

Preparation
Operator’s Manual 11
THEORY OF OPERATION
The Fuel System: The hose / regulator assembly attaches to the Propane / L.P. gas supply. The Propane / L.P.
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.
Air For Combustion
And Heating
Fuel
Combustion Chamber Ignitor
Clean
Heated
Air Out
(Front)
Cool
Air In
(Back)
Fan
Motor
Power Cord
Hose/
Regulator
Assembly
Solenoid Valve
On/Off Switch
DSI
Nozzle