Section Il. EQUIPMENT DESCRIPTION AND DATA
1-7 PURPOSE OF HEATER.
Model PH-400-G burns gasoline to generate fresh, uncontaminated heated air. The gasoline is pumped from
a fuel tank, forced through a spray nozzle, ignited, and burned in the combustion chamber of a heat exchang-
er. A fan blows air through the heat exchanger where it is heated and delivered through ducts to the area to
be heated. Model PH-400-G is used in the following applications:
a. To preheat aircraft engines and fuselage.
b. To heat ground vehicles.
To heat maintenance buildings, field shelters, and temporary structures.
d. To supply forced fresh air ventilation without heating.
CAPABIUTIES AND FEATURES.
Fully-enclosed, self-contained unit
b. Trailer mounted - ground portable
Gasoline fuel - gasoline engine driven
d. Variable temperature range
With exhaust properly vented, heater delivers uncontaminated air through the flexible duct
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS.
FRONT HALF HOOD. Open for access to prime mover.
FAN. Provides combustion air and ventilating air.
ENGINE. Gasoline engine to drive fan, fuel pump, and ignition armature.
FUEL PUMP. Pumps gasoline from fuel tank to combustor and engine.
GASOLINE FILTER. Ensures that only dean fuel is fed to combustor and engine.
TRAILER. Provides mounting for heater assembly and a means of transporting heater.
FUEL TANK. Holds supply of gasoline for combustor flame and for operation of prime mover.
HEAT EXCHANGER. Fuel burns inside heat exchanger. Fan blows air over exterior of heat ex-
changer. Heated air is blown out of heat exchanger.
EXHAUST STACK. Expels burned gasoline fumes to exterior of heater.