OEM Carrier High Pressure Switch HK02ZA395 for Model PY2PNB048115AA

This OEM high pressure switch (part number HK02ZA395) is the factory-specified refrigerant safety switch for the Carrier PY2PNB048115AA packaged unit. The high pressure switch is a critical refrigerant-side safety device that monitors refrigerant discharge pressure and opens the circuit to shut down the compressor when pressure exceeds the safe operating threshold — protecting the compressor from catastrophic failure. A failed or nuisance-tripping high pressure switch will cause the system to lock out on a high-pressure fault, resulting in a no-cooling condition even when refrigerant charge and airflow are normal.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread | 6(6)A @ 240 VAC | Sensata PS80 platform | Certified to EN12263, ENEC05, EN60730-2-6
• OEM vs Generic: This is a genuine Carrier OEM part — factory-matched pressure setpoints ensure the compressor is protected at the correct threshold. Aftermarket switches with loose tolerances can trip prematurely or, worse, fail to trip at all, risking compressor damage.
• Install difficulty: 2/5 — Recover refrigerant before removing the switch (EPA 608 required). Tools needed: manifold gauge set, adjustable wrench, leak detection solution. Always confirm system is fully depressurized before removing the old switch. Torque the new switch to spec to avoid refrigerant leaks at the 1/8" NPT fitting.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PY2PNB048115AA. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, 19240027, HK02ZA400, 312926-225, 312926-226, 312926-233, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify your unit's data plate and existing switch PSI rating before ordering. Our fitment team is available to confirm compatibility before you buy.