Control element
Set the rotary knob on the control element to the desired temperature.
NOTE:
To prevent the hot and combustion air fan from blocking or scraping, ensure that
there are no objects on or against the heater before you switch it on.
NOTE for ADR mode only:
The Air Top 2000 ST heater is switched on and off by hand using a switch.
The use of automatic control systems is prohibited.
In class FL vehicles these heaters must not be used during loading and unloading pro-
cedures or at loading points.
In class FL vehicles the heaters are switched off automatically and the combustion air
supply is interrupted for a maximum of 40 seconds if:
- The vehicle's engine is at a standstill; in this case the heater can be switched on
again by hand.
- A pumping device that is part of the vehicle is started.
The control unit is then in fault lock-out mode. The ON/OFF switch must be set to
OFF before the heater can be restarted.
A separate switch allows the user to choose between heating and ventilation mode.
In ventilation mode the fan speed depends on the position of the control element.
Rotary knob for:
- Switching on and off
- Setting the room temperature
- Resetting after a fault cut-out
Indicator/error code display
Switch on
Ventilation option
Changes to the settings
on the control element
will be carried out with
a time delay
Visit www.butlertechnik.com for more technical information and downloads.
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