Copeland Comfort Control (White Rodgers) 24A34-6 Heat Sequencer

For veteran technicians servicing electric furnaces and air handlers, the Copeland Comfort Control (White Rodgers) 24A34-6 Heat Sequencer is a reliable, industry-standard solution for staging 24V heating elements. This 4-switch electric heat sequencer features a solid-state 24V heater that provides precise timing for auxiliary contacts, ensuring that high-amperage heating coils do not energize simultaneously. This controlled sequencing prevents nuisance tripping of the main breaker and reduces the initial in-rush current during a call for heat.

The 24A34-6 is engineered for high-poise mounting and serves as a direct replacement heat sequencer for many popular brands, including Honeywell, MARS, and TOD. It supports on-timings and off-timings of 1-110 seconds, offering the flexibility needed for multi-stage electric heat applications. With double quick-connect terminals, this White Rodgers 24A34 series component simplifies field wiring, while the equivalent terminal markings allow for a seamless swap-out during emergency service calls. It is rated for operation in ambient temperatures ranging from -50°F to 165°F, making it suitable for demanding attic or closet installations.

Key Benefits:

• Universal Compatibility: Serves as a direct replacement for Honeywell, MARS, Klixon, and TOD sequencers, reducing truck stock requirements.
• Multi-Switch Precision: The 4-switch configuration allows for staging up to four separate heating elements or fan circuits.
• Versatile Timing: Adjustable-range delays from 1 to 110 seconds ensure optimal system stabilization and efficiency.
• Robust Electrical Ratings: Designed to handle resistive loads at 120V, 240V, and 480V, providing reliable performance in residential and light commercial settings.
• Contractor-Friendly Installation: Features double quick-connect terminals and multi-poise mounting for faster setup in tight spaces.

Common Questions:

Can I use any contacts for auxiliary fan control?
Yes, any contacts on the 24A34-6 except M1 and M2 can be utilized as auxiliary contacts for fan or accessory control.

How do I troubleshoot a suspected sequencer failure?
Check for 24V at the heater base. If power is present but contacts (e.g., M1-M2) do not close within 110 seconds, or if contacts remain closed after the 24V signal is removed and the cool-down period has passed, the electric furnace sequencer must be replaced.

Are the terminal markings compatible with other manufacturers?
Yes, the terminal markings on the White Rodgers 24A34-6 are equivalent to most competitive types, allowing you to follow standard industry wiring diagrams during installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.