Rollout Limit Switch for Armstrong and Concord

Allied Air Rollout Limit Switch – Safety Control for Armstrong and Concord Systems

The Allied Air Rollout Limit Switch is an OEM-rated safety device engineered for Armstrong and Concord HVAC units. Its primary function is to detect unsafe flame rollout conditions and interrupt system operation before damage or hazards occur. Built to meet manufacturer specifications, this switch ensures dependable protection and helps maintain proper system function in the field.

Primary Advantages

• Safety Control – Interrupts the burner circuit if abnormal temperatures or flame rollout are detected.
• OEM Compatibility – Designed for Armstrong and Concord furnaces, guaranteeing correct fit and reliable integration.
• Durable Design – Constructed to withstand the thermal demands of HVAC operation, ensuring consistent service life.
• Straightforward Installation – Factory specifications allow for direct replacement without modification.

Technical Data

• Voltage: 24 VAC control circuit
• Temperature Limit: Opens at 210°F
• Application: Rollout protection for Armstrong and Concord equipment
• Configuration: Manual reset design for added safety

Installation Guidance

This safety switch should be installed by a licensed HVAC professional to ensure compliance with manufacturer guidelines and local codes. Correct wiring and placement are critical for maintaining safe furnace operation. Replacement requires shutting off power, verifying compatibility, and securing the switch to the designated mounting position.

Contractor Notes

For Professional Use: This rollout limit switch provides the reliability required for field replacement work. By maintaining factory-rated specifications, it ensures system safety and reduces callbacks associated with overheating or flame rollout conditions. Always confirm part number and unit compatibility prior to installation.

Summary

The Allied Air Rollout Limit Switch is a critical safety control designed for Armstrong and Concord HVAC systems. With a 24V circuit rating, 210°F trip temperature, and durable OEM-grade construction, it offers reliable protection in residential and light commercial furnace applications.