Trane SWT1649 Reverse Flow Switch F Open F Close Boiler Safety Controls & Aquastats - 105 95

The Trane SWT1649 is an OEM reverse flow thermal safety switch designed for Trane gas furnaces and HVAC equipment. This critical safety component monitors temperature to prevent potential damage from improper airflow conditions in the heating system.

Key Specifications:

• Opening temperature: 105°F
• Closing temperature: 95°F
• Genuine Trane OEM replacement part
• Also known as reverse air flow switch or flow reversion switch
• Interchangeable with part number SWT01649

Reverse flow switches are essential safety devices in gas furnaces that help protect the system from damage caused by improper air circulation. Located on the blower housing in downflow furnace configurations, this switch works in conjunction with other limit controls to ensure safe furnace operation. When the controller detects abnormal conditions through this switch, it will shut down the system and display a fault code to prevent equipment damage.

This genuine Trane replacement part ensures reliable performance and proper compatibility with your existing HVAC system. Professional installation by a qualified HVAC technician is recommended for proper system safety and operation.