This High altitude control unit is suitable for air heaters PLANAR 2D with specific serial number.
Heater equipped with this control unit can work at altitude up to 2500 meters above sea level (MASL).
Interchangeable control units.
|Heater||serial number||control unit||Glow plug||HA control unit||HA Glow plug|
In order to change control unit for 44D with control units Assy.3048 and Assy.3033 you have to change Glow plug as well.