Perfect Compatibility: Direct Lochinvar 100135315 crossover for several large-scale residential and commercial boiler configurations

Always verify the temperature stamping on the original part matches the 150-40 rating before installation

Can this unit replace a 50A contactor

the 100074451 is the standard replacement to resolve erratic error codes

Key Benefits Precise Mass Flow Regulation: Ensures accurate refrigerant metering to prevent evaporator freezing and compressor floodback

Trane BRD3359 Control Board Refrigerant Perfect Compatibility: Direct Lochinvar 100135315The Trane BRD3359 is a critical OEM replacement electronic control board designed for specific HVAC units requiring precise logic for sequence of operation. This is an unprogrammed control board, meaning it requires field programming or specific model configuration upon installation to ensure correct communication with the system components. As a direct replacement for various Trane circuit boards, this module manages ignition timing, inducer motor