the valve increases water flow as the head pressure rises

while the self-locking nut ensures the stem-to-lever connection remains secure under high-vibration conditions

While the Robertshaw 5300-080 is a high-limit capable control

This kit is specifically designed for use with the Honeywell TP970 Series and TP9600 series thermostats

and LHA series models

Lennox 58H31 Pressure Switch R-410A the valve increases water flowThe Lennox 58H31 Pressure Switch is a critical safety component designed for precise draft verification in residential and light commercial HVAC systems. This genuine OEM part features a factory calibrated 3. 00" WC (Water Column) set point and a Single Pole Single Throw (SPST) configuration, ensuring the inducer motor establishes proper static pressure before allowing the ignition sequence to proceed. As the verified direct replacement for the legacy