Williams P323078 Thermo Switch 321894-709 The robust bellows construction ensures

The robust bellows construction ensures reliable modulation even in high-demand industrial environments

it can be integrated into most 20 PSI pneumatic systems provided the plumbing utilizes compatible barbed or compression fittings

while the 240Vac coil is protected by a NEMA 4X watertight enclosure

if the glass breaks

Williams P323078 Thermo Switch 321894-709 The robust bellows construction ensuresWhen you're out in the field servicing a customer's HVAC unit, reliability is non negotiable. The Williams P323078 Thermo Switch is a critical OEM replacement component designed specifically for Williams wall furnaces and direct vent heating systems. This high integrity furnace limit switch acts as a safety or operational control, sensing temperature fluctuations to manage blower activity or provide essential circuit protection. Whether you are