Resideo CQ100A1005 Universal Thermocouple 30mv 36 Inches

Product Description

The RESIDEO CQ100A1005 is a 36-inch universal thermocouple designed for gas pilot safety control in standing-pilot heating appliances. It generates a 30-millivolt (mV) signal to hold the gas valve open when a pilot flame is present. If the pilot goes out, the thermocouple cools, the millivolt signal drops, and the valve closes automatically, shutting off gas flow. The universal adapter tip makes this a widely compatible replacement across multiple pilot burner connection types. Licensed HVAC technicians, plumbers, and gas appliance service techs are the typical installers.

The CQ100A1005 is suited for residential and light commercial gas-fired equipment that uses a standing pilot ignition system. Typical applications include gas furnaces, boilers, water heaters, and room heaters. The 36-inch lead length provides enough reach for most standard appliance configurations without requiring an extension. The universal adapter accommodates screw-in, clamp-in, and push-in pilot burner connections, reducing the need to stock multiple thermocouple SKUs for different equipment types.

Key Features

• 30 mV output supports standard millivolt gas valve operation
• 36-inch lead length fits most residential and light commercial appliances
• Universal adapter tip fits screw-in, clamp-in, and push-in pilot burners
• Serves as a gas pilot safety device — shuts off gas automatically on pilot outage
• Sold individually (each)

Compatibility

Designed as a universal OEM-style replacement thermocouple for standing-pilot gas furnaces, boilers, water heaters, and room heaters that use a 30 mV millivolt gas valve system.

Installation Notes

Installation should be performed by a licensed HVAC technician, plumber, or qualified gas appliance service professional in accordance with local codes and the appliance manufacturer instructions. Shut off the gas supply and allow the appliance to cool completely before removing the old thermocouple. The thermocouple tip must be fully seated in the pilot flame cone, and the connection at the gas valve should be hand-tightened then snugged with a wrench — do not overtighten. Verify pilot flame engulfs the thermocouple tip after reassembly before returning the appliance to service.

Technical Specifications

• Output Voltage: 30 millivolts (mV)
• Lead Length: 36 inches
• Connection Type: Universal (screw-in, clamp-in, push-in)
• Weight: 0.19 pounds
• Sold As: Each

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: CQ100A1005