Description
High altitude control unit
Voltage: 12V / For AUTOTERM Air 4D
Technical parameters:
This High altitude control unit is suitable for air heaters (previously known as PLANAR 44D) with a 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 |
| 44D12 | 4142.. | Assy.4144 | Assy.3333 | Assy.4002 | Assy.3333 |
| 44D24 | 4137.. | Assy.4139 | Assy.3333 | Assy.4188 | Assy.3333 |
| 44D12 | 3046.. | Assy.3048 | Assy.2288 | Assy.4002 | Assy.3333 |
| 44D24 | 3031.. | Assy.3033 | Assy.2253 | Assy.4188 | Assy.3333 |
In order to change the control unit for 44D with control units and , you have to change the Glow plug as well.






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