Aaon P59920 Pressure Switch 326070-701 This HVAC replacement part is

This HVAC replacement part is built for structural integrity

the A-4000-138 features a factory-installed pressure relief valve set at 25 psig

118-inch diameter

The P151800 is specifically tailored for Direct Vent (DV) series like the 4007 and 5507

Aaon P59920 Pressure Switch 326070-701 This HVAC replacement part isThe Aaon P59920 Pressure Switch is a high performance HVAC high pressure cutout switch engineered specifically for technical reliability in demanding commercial environments. This Aaon OEM replacement part features a precise manual reset (M R) mechanism set to trigger at 420 PSI, providing a critical layer of safety for refrigeration circuits. Designed as a high limit safety control, the high pressure switch 420# protects your system by interrupting