Proheat A4 - Manual (Page 6)

PROHEAT AIR A2/A4 INSTALLATION MANUAL B-2
HEATED AIR
ELECTRICAL
CONNECTION
DUCTING
DRIVER CONTROL
PANEL (DCP)
HEATER
EXHAUST
FUEL PUMP
FUEL PICK-UP
AIR INTAKE
COMBUSTION
AIR INTAKE
Proheat Air heaters will help provide a comfortable cab or cargo temperature
without having to idle the vehicle’s main engine.
1. Cab or sleeper heat (engine off) – Proheat Air heaters will supply heat to
the cab or sleeper. Substantial savings through reduced fuel consumption
and engine wear can be obtained by not idling the engine.
2. Supplemental heat (engine running) – As the efficiency of modern diesel
engines have improved, there is less reject heat available to heat the
vehicle’s interior. Proheat Air heaters can be used while the vehicle is
operating to provide supplemental heat for the interior.
Proheat Air heaters are designed to be used in most classes of trucks, cabs of
heavy machinery, and cargo areas. Proheat Air heaters are not approved for
Marine applications.
Components and Basic Operation
An electric pump delivers diesel fuel to the Proheat Air heater which burns the
diesel fuel in a combustion chamber. An electric fan blows air over the heated
combustion chamber transferring heat to the air as it passes. The heated air
is then delivered through ducting to the area to be heated. Pre-combustion air
comes from an external air intake. Combustion exhaust is externally vented
from the vehicle. The Proheat Air heater is controlled by a Driver Control Panel
(DCP). The DCP is used to turn the heater on/off and it can be programmed
to start the heater at predetermined times.
The Proheat Air heater should be installed by an Authorized Proheat Dealer or
trained professional installer.
Figure 2. Component Layout