A55-M1-5 | Lennox HVAC Control Board Rev C Replacement
Lennox · HVAC & Building Controls
Description The Lennox A55-M1-5 Control Board Rev C is an integrated HVAC control module designed to manage core system operations and safety functions. Identified by part number A55-M1-5, this board coordinates low-voltage control signals to ensure stable and reliable equipment performance. It is used in compatible Lennox heating systems as a direct replacement control solution. Technical Specifications Condition New/Never Used Surplus Brand Lennox Category HVAC Controls Part Number A55-M1-5 Subcategory Control Boards Control Type HVAC System Control Board Board Revision Rev C Input Voltage 24 VAC Power Phase Single Phase Application Residential HVAC Systems Mounting Type Furnace Panel Mount Interface Type Wired Terminal Connections Housing Type Open Control Board Assembly Operating Environment Indoor HVAC Equipment Duty Rating Continuous Weight Approx. 0.9 lb Information About A55-M1-5 The A55-M1-5 is part of Lennox’s A55 series control boards developed for residential HVAC equipment requiring dependable electronic control. This revision C board features integrated circuitry to manage operational sequencing, safety monitoring, and system response. It interfaces directly with thermostats, sensors, and system components using standard low-voltage connections. The control board is intended for compatible Lennox systems where accurate control logic and long-term reliability are required. Key Features: Integrated HVAC Control Logic: Coordinates system operation, timing, and safety responses. Low-Voltage Operation: Designed for standard 24V HVAC control circuits. Revision C Design: Updated board revision ensuring stable and consistent control performance. Safety Monitoring Support: Interfaces with limit switches and protection circuits. System Sequencing Control: Manages startup, operation, and shutdown logic. OEM Replacement Board: Matches Lennox specifications for direct installation. Compact Control Board Layout: Fits standard furnace control mounting locations. Durable Electronic Construction: Built to withstand thermal and electrical stresses. Wired Terminal Interface: Provides secure connections for system wiring and controls. The A55-M1-5 delivers the reliability and precision required for residential HVAC system control and safety management.
Brand: Lennox · Category: HVAC & Building Controls
Key features
- Integrated HVAC Control Logic: Coordinates system operation, timing, and safety responses.
- Low-Voltage Operation: Designed for standard 24V HVAC control circuits.
- Revision C Design: Updated board revision ensuring stable and consistent control performance.
- Safety Monitoring Support: Interfaces with limit switches and protection circuits.
- System Sequencing Control: Manages startup, operation, and shutdown logic.
- OEM Replacement Board: Matches Lennox specifications for direct installation.
- Compact Control Board Layout: Fits standard furnace control mounting locations.
- Durable Electronic Construction: Built to withstand thermal and electrical stresses.
- Wired Terminal Interface: Provides secure connections for system wiring and controls.
Specifications
| Manufacturer part number | A55-M1-5 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Lennox |
| Category | HVAC Controls |
| Part Number | A55-M1-5 |
| Subcategory | Control Boards |
| Control Type | HVAC System Control Board |
| Board Revision | Rev C |
| Input Voltage | 24 VAC |
| Power Phase | Single Phase |
| Application | Residential HVAC Systems |
| Mounting Type | Furnace Panel Mount |
| Interface Type | Wired Terminal Connections |
| Housing Type | Open Control Board Assembly |
| Operating Environment | Indoor HVAC Equipment |
| Duty Rating | Continuous |
| Weight | Approx. 0.9 lb |
| Product type | Control Boards |
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