2.2
Heat Exchanger
The heat exchanger dissipates the heat provided by
combustion to the air delivered by the combustion and
heating air fan.
Heat Exchanger
2.3
Burner Insert with Combustion Tube
Within the burner insert fuel is distributed in the combus-
tion tube across the burner cross-section. In the combus-
tion tube the combustion of the fuel/air mixture takes
place heating up the heat exchanger.
2.4
Control Unit / Control Circuit Board
Air Top 2000 without Diagnosis
The control unit/control circuit board is the central control-
ling unit for functional sequencing and monitoring of the
combustion operation. A temperature sensor located on
the side is used for temperature control. 12 Volt heaters
may have the temperature sensor replaced against an ex-
ternal temperature sensor. The combustion and heating
air fan may be set by means of a potentiometer.
Control Unit Air Top 2000 without Diagnosis
Air Top 2000 Diagnosis
The control unit/control circuit board is the central con-
trolling unit for functional sequencing and monitoring of
the combustion operation. A temperature sensor located
on the control unit is used for temperature control. All
heaters may have the temperature sensor replaced
against an external temperature sensor. The combustion
and heating air fan may be set by means of a poten-
tiometer.
A malfunction in air heaters Air Top 2000 Diagnosis out-
puts an error code to the display of the combination or
standard timer. When equipped with a control element
the operating indicator flashes. In addition a heater chec-
kout may be performed using a personal computer (refer
to operating instructions PC air heater diagnosis).
Combustion
Tube
Burner
Insert
Potentiometer
Temperature
Sensor
202
Fuel
1 mm
Diesel
2 mm
2 General Description
Air Top 2000