OEM Carrier High Pressure Switch HK02ZA395 — 395/295 PSI for Model PY2PNB060115NB

This is the genuine OEM factory-specified high pressure switch for the Carrier PY2PNB060115NB packaged unit. The high pressure switch is a critical refrigerant-circuit safety device that monitors system discharge pressure on the high side of the refrigerant loop. When discharge pressure rises abnormally — due to a dirty condenser coil, refrigerant overcharge, blocked airflow, or a failing condenser fan motor — the switch opens at 395 PSI and cuts power to the compressor to prevent catastrophic damage. The switch automatically resets when pressure drops back to 295 PSI. Symptoms of a failed high pressure switch include nuisance lockouts, an error code for high pressure fault, or a compressor that shuts off shortly after startup on a hot day.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT fine thread port | 240 VAC rated | 6(6)A electrical rating | Sensata PS80-03-0018 platform | Quick-connect electrical terminals
• OEM vs Generic: The OEM HK02ZA395 is factory-calibrated to exact cut-out and cut-in pressures. Aftermarket switches can carry ±5–10% pressure tolerances, risking premature trips or — worse — failing to protect the compressor at true high-pressure events.
• Install difficulty: 3/5 — Refrigerant-side component. Requires EPA Section 608 certification to recover refrigerant before replacing. Tools needed: manifold gauge set, refrigerant recovery unit, 1/8" NPT fitting wrench, multimeter. Always verify system pressure after reinstallation before recharging.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Direct OEM replacement for Carrier PY2PNB060115NB packaged units. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify your unit's data plate and existing switch PSI ratings before ordering. Our technical team is available to confirm fitment prior to purchase.