Armstrong Furnace R104824-02 208/240V Primary 24V Secondary 40VA Transformer

The Armstrong Furnace R104824-02 is an OEM replacement control transformer engineered to deliver dependable, low-voltage power to furnace control circuits. Stepping down a 208/240V primary supply to a 24V secondary output at 40VA, this transformer provides the stable, regulated voltage that gas valve controls, thermostats, and ignition systems require for safe and consistent furnace operation.

Key Specifications

• Primary Voltage: 208/240V
• Secondary Voltage: 24V
• VA Rating: 40VA
• OEM Part Number: R104824-02
• Compatible Brand: Armstrong Furnace

Product Highlights

• Direct OEM replacement for Armstrong Furnace systems
• Dual primary voltage (208/240V) for flexible installation compatibility
• 24V secondary output powers thermostats, gas valves, and control boards
• 40VA capacity handles typical residential furnace control circuit loads
• Designed for long-lasting, reliable performance in heating applications

Application

This transformer is the correct replacement part for Armstrong Furnace units that require a 208/240V to 24V step-down transformer rated at 40VA. It is ideal for HVAC technicians performing service, maintenance, or control system repairs on compatible Armstrong Furnace equipment. Always verify compatibility with your specific furnace model before installation.