Daikin-McQuay B1370155 Auxiliary Limit Switch Auto-Reset 90-120°F

The Daikin-McQuay B1370155 is a genuine OEM auxiliary limit switch with auto-reset functionality, designed for use in gas furnaces and packaged HVAC units. With a temperature operating range of 90°F to 120°F, this switch serves as a critical safety component that monitors air temperatures within the furnace or air handler and automatically shuts down the system if temperatures exceed the preset limit — then resets once safe conditions are restored.

This part is manufactured by Daikin Comfort Technologies and is sold under the Goodman, Amana, and Daikin-McQuay brand families, making it a true drop-in OEM replacement for a wide range of compatible units.

Key Features:

• Auto-Reset Operation: Automatically resets once temperatures return to the safe operating range — no manual intervention required
• Temperature Range: 90°F – 120°F (30°F – 120°F full sensing range)
• OEM Part: Genuine Daikin Comfort Technologies replacement part (UPC: 076335072586)
• Black and Silver Construction: Durable materials suited for furnace and packaged unit environments
• Cross-Reference: Also referenced as Auxiliary Limit Switch 1200 (60T81-313745 TOD)
• Compatible Brands: Goodman, Amana, Daikin, Daikin-McQuay, Janitrol, Kenmore, McQuay, GMC, Gree, and Xenon

The B1370155 auxiliary limit switch is used in residential and light commercial gas furnaces and packaged rooftop units (RTUs). It is a compact, reliable control device that safeguards HVAC equipment against overheating and thermal damage, helping maintain system efficiency, safety certifications, and published performance ratings.