The TB Woods 4J-3/4 Coupler Flange is a Type J Sure-Flex Plus power transmission component engineered for heavy-duty industrial and HVAC applications

significantly improving total system efficiency

It is professional best practice to replace the dual run capacitor or start capacitor during installation to ensure the 1/2 HP motor starts under load without excessive amperage draw

Consult your specific wiring diagram to confirm the heater is de-energized while the compressor is running to maximize efficiency

which often eliminates the need for complex three-valve bypass manifolds

Mitsubishi Electric R01E94202 Thermistor 328140-751 The TB Woods 4J-3/4 CouplerThe Mitsubishi Electric R01E94202 Thermistor is a critical genuine OEM replacement part designed for precision thermal monitoring in high performance HVAC systems. This 2 phase ambient pipe thermistor (also referred to as an outdoor pipe sensor) is specifically engineered to communicate variable resistance to the main control board, allowing the inverter system to modulate heating and cooling outputs effectively. With a temperature sensing range of