Daikin-McQuay 107895701 Limit Switch

The Daikin-McQuay 107895701 Limit Switch is a critical safety component designed for high-limit temperature monitoring in commercial HVAC systems. This 140-175F AUTO limit switch functions as a normally closed contact that opens when temperatures exceed the 175°F threshold, protecting the heat exchanger and internal components from thermal damage. Engineered for automatic reset functionality, this fixed-temperature switch eliminates the need for manual intervention once temperatures return to the safe 140°F operating range. This OEM Daikin limit control is built to withstand high-cycle applications in rooftops and air handlers, ensuring reliable circuit interruption under demanding conditions. Proper integration of this high limit sensor is essential for maintaining equipment certification and preventing nuisance tripping or catastrophic furnace failure. When performing a limit switch replacement, ensure the mounting footprint and temperature range match the original equipment specifications to maintain system safety protocols and airflow efficiency.

• Precise Thermal Calibration: 140°F to 175°F range ensures accurate response to over-temp conditions.
• Automatic Reset Logic: Restores circuit continuity automatically once the system cools, reducing downtime.
• OEM Compatibility: Specifically engineered for Daikin-McQuay furnace parts and rooftop units.
• Durable Construction: Built to handle the high-amperage switching requirements of commercial heating circuits.
• Simplified Installation: Standard two-wire termination for seamless integration into existing safety loops.

Is the 107895701 a manual or automatic reset switch?
This is an automatic reset switch, meaning it will close the circuit once the plenum temperature drops back to 140°F.

What causes this limit switch to trip frequently?
Repeated tripping is usually indicative of restricted airflow, such as a clogged filter, undersized ductwork, or a failing blower motor.

Can I use a higher temperature limit switch instead?
No, replacing a limit switch with a higher temperature rating than specified by the manufacturer creates a serious fire hazard and voids the equipment safety rating.

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.