AAON P59920 High Pressure Switch Manual Reset 420 PSI

Description

The AAON P59920 is an OEM replacement high pressure switch designed for use in AAON commercial HVAC rooftop and air handling equipment. Featuring a manual reset (M/R) mechanism and a 420 PSI high-side cut-out pressure, this switch provides critical refrigerant circuit protection by shutting down compressor operation when system pressure exceeds safe operating limits.

Key Features

• Manual reset (M/R) design — requires intentional operator reset after a high-pressure trip event
• 420 PSI cut-out pressure rating for high-side refrigerant circuit protection
• OEM AAON replacement part — engineered to factory specifications for direct drop-in compatibility
• Protects compressors and refrigerant circuits from damaging over-pressure conditions
• Designed for use in AAON commercial rooftop units and air handling systems

Application

This high pressure switch is a direct OEM replacement for AAON commercial HVAC equipment. The manual reset feature ensures that a qualified technician must investigate and resolve the root cause of any high-pressure fault before the system is returned to service, helping to prevent repeated compressor damage and extending equipment life.

Specifications

• Part Number: P59920
• Brand: AAON
• Type: High Pressure Switch
• Reset Type: Manual Reset (M/R)
• Cut-Out Pressure: 420 PSI
• Application: AAON Commercial HVAC Equipment