Lennox 17W14 Pressure Switch 321702-401 the FT-30 series must be

the FT-30 series must be installed in a horizontal plane with the arrow on the body pointing in the direction of flow to ensure the float mechanism functions correctly

is the standard for contractors performing seasonal maintenance or major heat exchanger overhauls on compatible York and Source 1 equipment

and Port S for the input signal from the controller

If the bellows are leaking

Shell-Screw

Lennox 17W14 Pressure Switch 321702-401 the FT-30 series must beThe Lennox 17W14 Pressure Switch is a critical safety component designed for precise refrigerant pressure monitoring in high performance HVAC systems. This 40 15# Low pressure switch serves as a reliable safeguard, engineered to open the electrical circuit when suction pressure falls below the 15 PSI cutout point and automatically resets when pressure rises back to the 40 PSI cut in threshold. Built to handle the rigorous demands of Lennox commercial