Lennox 28B97 - 106855-02, Lennox CORE Unit Controller (M4) A2L, L*M, L*T, S*H Series
Lennox 28B97 - 106855-02, Lennox CORE Unit Controller (M4) A2L, L*M, L*T, S*H Series
The Lennox 28B97 (part number 106855-02) CORE Unit Controller (M4) is a factory OEM replacement control board designed for advanced system integration and performance in select Lennox units. Engineered to support refrigerants R-410A and R-454B, this controller ensures seamless operation of LM, LT, and S*H Series rooftop and split systems.
Key Features:
- Multi-refrigerant compatibility: Supports both R-410A and newer low-GWP refrigerant R-454B.
- OEM-designed: Provides precise control and system protection for Lennox commercial HVAC systems.
- Application-specific: Tailored for LM, LT, and S*H Series models for optimal efficiency.
- A2L Refrigerant Advisory: For units using A2L refrigerants, DO NOT use substitute part 21L14 — this model is the correct controller.
Ensure system reliability and compatibility by using genuine Lennox parts. The 28B97 controller is essential for proper unit performance, diagnostics, and compliance with modern refrigerant standards.
Available now at Beenimax.com — your trusted source for Lennox OEM components.
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |
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