Autoterm PCB for 2D
This high altitude control unit is designed for AUTOTERM Air 2D heaters with specific serial numbers. Heaters fitted with this control unit operate reliably at altitudes up to 2500 metres above sea level (MASL). Control units are interchangeable for ease of maintenance and upgrade.
Features
- Compatible with AUTOTERM Air 2D heater models: 2D12, 2D24, 44D12, 44D24
- Supports heater operation at altitudes up to 2500 MASL
- Interchangeable control units for flexible replacement
- Specific control unit assemblies assigned per heater model and serial number
- Glow plug replacement required when updating control units on 44D models with assemblies 3048 and 3033
| Heater Model | Serial Number Start | Control Unit Assembly | Glow Plug Assembly | High Altitude Control Unit Assembly | High Altitude Glow Plug Assembly |
|---|---|---|---|---|---|
| 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 replacing the control unit on 44D models using assemblies 3048 or 3033, also replace the Glow plug to ensure correct operation.










