OEM Carrier High Pressure Switch 395/295 PSI — HK02ZA395 for Model PY2PNB024060AB

This OEM high pressure switch is the factory-specified replacement part for the Carrier PY2PNB024060AB packaged unit. The high pressure switch is a critical refrigerant-circuit safety device that monitors system discharge pressure. When refrigerant pressure climbs to an unsafe level — due to a blocked condenser coil, failed condenser fan motor, overcharge, or restricted airflow — the switch opens the compressor circuit to prevent catastrophic compressor failure. Common failure symptoms include nuisance high-pressure lockouts, the system shutting down on hot days, or a fault code on the control board indicating a high-pressure trip with no obvious refrigerant issue.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread connection | 240 VAC rated | SPST normally-closed contact | Sensata PS80-03-0018 equivalent
• OEM vs Generic: This is a genuine Carrier OEM switch manufactured to factory pressure tolerances. Aftermarket switches often carry ±10–15% setpoint variance, which can allow unsafe pressures before tripping or cause nuisance opens at normal operating pressure.
• Install difficulty: 2/5 — Requires recovery of system refrigerant charge before replacing. Tools needed: refrigerant recovery machine, manifold gauge set, 1/8" NPT wrench, and thread sealant (refrigerant-rated). Re-weigh refrigerant charge to spec upon reinstallation. Always tag-out/lock-out the system before beginning work.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier PY2PNB024060AB packaged unit. Also replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, and HK02ZA400. Always verify your unit's data plate and existing switch setpoint before ordering. Our parts specialists are available to confirm fitment — contact us before you order if unsure.