it is designed to fit into standard torsion flex mounts or belly band brackets common in Lennox air handlers

For technicians performing code-compliant repairs

the 100208503 is the current manufacturer-designated replacement for the RLY2400 and RLY2400K

Most failures occur due to carbon buildup on the spark electrode or cracked ceramic insulation

Operating across a 40 to 90

Trane WIR6514 Wiring 323080-701 it is designed to fitThe Trane WIR6514 Wiring is a critical replacement component designed for precision electrical connectivity within Trane light commercial HVAC units and high capacity air handlers. Engineered to withstand the thermal stressors of 24 7 industrial duty cycles, this internal wiring harness ensures low resistance signal integrity across the control circuit. When executing a field replacement, this OEM harness maintains factory specified impedance levels,