Autoterm Main PCB Control Unit for Autoterm 2D-12 High Altitude
This high altitude control unit is designed for AUTOTERM Air 2D heaters with specific serial numbers. It enables heaters to operate reliably at altitudes up to 2500 meters above sea level (MASL). Control units are interchangeable for various models.
Features
- Compatible with AUTOTERM 2D12 heaters serial numbers starting 6700...
- Supports high altitude operation up to 2500 MASL
- Interchangeable control unit assemblies for different heater models
- Requires specific glow plug assemblies for each heater and control unit combination
- For 44D heaters with control units Assy.3048 and Assy.3033, glow plug replacement is necessary
| Heater Model |
Serial Number Start |
Standard Control Unit |
Standard Glow Plug |
High Altitude Control Unit |
High Altitude Glow Plug |
| 2D12 |
6700... |
Assy.2618 |
Assy.2615 |
Assy.3983 |
Assy.2615 |
| 2D24 |
6600... |
Assy.2581 |
Assy.2583 |
Assy.4223 |
Assy.2583 |
| 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 |
Note: When upgrading the control unit on 44D heaters with standard control units Assy.3048 or Assy.3033, the glow plug must also be replaced for proper compatibility.