1097-83-503A | Honeywell Lennox Furnace Main Control Board 24 VAC
Honeywell · PLCs & Industrial Controllers
Description Honeywell 1097-83-503A is a discontinued OEM main control board designed for use in select Lennox furnace systems. It operates at 24 VAC, 50/60 Hz, with a maximum current draw of 0.5 A, managing ignition, blower, and safety control functions in heating applications. Technical Specifications Condition New/Never Used Surplus Brand Honeywell Category PLCs/Machine Control Part Number 1097-83-503A Subcategory PC Board PLC/Add-On Board Voltage 24 VAC Frequency 50/60 Hz Maximum current 0.5 A Application Main control board for select Lennox furnaces Function Controls ignition, blower, inducer, and safety interlocks Compatible equipment Lennox furnace models specified by OEM Status Discontinued by manufacturer Design type PCB-mounted control module Weight 0.65 lb Information About 1097-83-503A The 1097-83-503A is a main control PCB used in certain Lennox furnace models, manufactured by Honeywell for direct OEM integration. It is powered by 24 VAC and supports both 50 Hz and 60 Hz operation, making it adaptable for various regional electrical standards. Its control logic governs key furnace operations, including inducer startup, ignition sequencing, blower fan control, and safety interlocks. This model has been discontinued by the manufacturer, so service replacements typically require sourcing equivalent boards approved for the specific Lennox furnace model. Key Features: OEM furnace integration: Designed specifically for select Lennox furnace applications. 24 VAC operation: Low-voltage control circuit suitable for residential HVAC systems. Dual frequency support: Operates at both 50 Hz and 60 Hz for international compatibility. Compact PCB design: Fits within furnace control compartments without modification. Safety monitoring: Provides control for ignition lockouts and protective shutdowns. Multi-function control: Manages inducer, ignition, blower, and gas valve sequences. Manufacturer discontinued: No longer produced; requires compatible replacement sourcing. The 1097-83-503A delivers the control precision and reliability required for OEM Lennox furnace operation.
Brand: Honeywell · Category: PLCs & Industrial Controllers
Key features
- OEM furnace integration: Designed specifically for select Lennox furnace applications.
- 24 VAC operation: Low-voltage control circuit suitable for residential HVAC systems.
- Dual frequency support: Operates at both 50 Hz and 60 Hz for international compatibility.
- Compact PCB design: Fits within furnace control compartments without modification.
- Safety monitoring: Provides control for ignition lockouts and protective shutdowns.
- Multi-function control: Manages inducer, ignition, blower, and gas valve sequences.
- Manufacturer discontinued: No longer produced; requires compatible replacement sourcing.
Specifications
| Manufacturer part number | 1097-83-503A |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | PLCs/Machine Control |
| Part Number | 1097-83-503A |
| Subcategory | PC Board PLC/Add-On Board |
| Voltage | 24 VAC |
| Frequency | 50/60 Hz |
| Maximum current | 0.5 A |
| Application | Main control board for select Lennox furnaces |
| Function | Controls ignition, blower, inducer, and safety interlocks |
| Compatible equipment | Lennox furnace models specified by OEM |
| Status | Discontinued by manufacturer |
| Design type | PCB-mounted control module |
| Weight | 0.65 lb |
| Product type | PC Board PLC/Add-On Board |
Contact Safety Shops for pricing, delivery and project support in the UAE.