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Always verify your serial number against the parts list to ensure this SS heat shield matches your combustion chamber configuration
As a professional-grade HVAC handheld programmer
the switch may be out of calibration
Operating at 3200 RPM with a 1/30 HP rating
always verify the compressor's lubricant compatibility and motor starting characteristics
Trane SWT1278 Limit Switch R-407A Always verify your serial numberThe Trane SWT1278 Limit Switch is a critical safety component designed for precise thermal regulation within furnace supply plenums and industrial heating configurations. Engineered for high reliability performance, this fixed temperature limit control features a 150F opening setpoint (150op) to prevent heat exchanger overheating and a 120F closing setpoint (120cl) for circuit reset. As a veteran grade OEM replacement part, the SWT1278 is essential
