Trane FLS0005 3 Wire Pilot Burner Assembly

Product Description

The TRANE FLS0005 is a 3-wire pilot burner assembly designed for use in gas heating systems. It serves as the ignition source for the main burner, generating a standing pilot flame that proves ignition to the gas valve through a connected thermocouple or thermopile circuit. This assembly is a direct OEM-style replacement component installed by licensed HVAC technicians and gas furnace service professionals during routine maintenance or ignition system repair.

The FLS0005 is suited for residential and light commercial gas furnace applications where a standing pilot ignition system is in use. The 3-wire configuration supports systems that require separate connections for the pilot gas supply, thermocouple signal, and pilot adjustment or grounding function. It is typically found in older or mid-vintage gas furnace installations that rely on a continuous pilot flame rather than electronic ignition.

Key Features

• 3-wire design supports thermocouple or thermopile-based pilot proving circuits
• OEM-style replacement for standing pilot gas furnace ignition systems
• Pilot flame provides reliable ignition signal to the main gas valve
• Compact assembly for straightforward drop-in service replacement

Compatibility

Designed as an OEM-style replacement pilot burner assembly for TRANE gas furnaces equipped with 3-wire standing pilot ignition systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas service professional in accordance with local codes and the International Fuel Gas Code (IFGC). Shut off the gas supply and disconnect power to the furnace before removing the existing pilot burner assembly. Verify that all pilot tube fittings are leak-free after installation using an approved leak detection solution before restoring gas flow and power.

Technical Specifications

• Wire Count: 3
• Assembly Type: Pilot Burner Assembly

Standard Information

• Brand: TRANE
• Manufacturer Part Number: FLS0005