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
Control Unit - Air Top 2000 S
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
with an external temperature sensor. The combustion
and heating air fan may be set by means of a poten-
tiometer.
A malfunction in the Air Top 2000 S is indicated by an
error code displayed on the combination or standard
timer. When equipped with a standard control dial
the operating indicator flashes. In addition a heater check
out may be performed using a personal computer (refer
to operating instructions PC air heater diagnosis).
Combustion
Tube
Burner
Insert
202
Fuel
1 mm
Diesel
2 mm
Potentiometer
Temperature
Sensor
Air Top 2000 S
2 General Description
