OEM Carrier High Pressure Switch 395/295 PSI — HK02ZA395 for Model PY2PNB060130NB

This OEM high pressure switch is the factory-specified replacement for the Carrier PY2PNB060130NB packaged heat pump unit. The high pressure switch is a critical refrigerant-circuit safety device that monitors system discharge pressure and opens the control circuit when pressure exceeds safe operating limits. When it fails or trips repeatedly, the system will lock out on a high-pressure fault — resulting in no cooling or heating, nuisance shutdowns, or a compressor that refuses to restart.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT male thread | 240 VAC rated | Sensata PS80-03-0018 platform | Supersedes part numbers: 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435
• OEM vs Generic: This is a genuine Carrier OEM part manufactured to exact factory pressure setpoints. Aftermarket pressure switches frequently deviate from rated cut-out values, risking compressor damage, refrigerant overcharge events, or nuisance trips that mask real system faults.
• Install Difficulty: 3/5 — Refrigerant circuit work requires an EPA 608 certified technician. The switch itself mounts to the high-side service port or liquid line. Tools needed: refrigerant manifold gauges, adjustable wrench, Teflon tape, multimeter. Always recover refrigerant before removing the switch if it is located in a non-Schrader fitting port.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY2PNB060130NB packaged heat pump. Verify your existing switch's PSI markings and thread size against your unit's data plate before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any questions.