Product information:

This High altitude control unit is suitable for air heaters AUTOTERM Air 2D with a specific serial number.

Suitable for heaters with the following serial numbers:

• 4221xxxxxxx
• 4741xxxxxxx

This 24V control unit is compatible with AUTOTERM Air 2D heaters equipped with the following air pumps (assy numbers): 

• 2579

Heater equipped with this control unit can work at altitude up to 2500 meters above sea level (MASL).

Interchangeable control units.