OEM Carrier High Pressure Switch HK02ZA395 — 395/295 PSI for Model PY2PEB042060AA

The Carrier HK02ZA395 is the factory-specified OEM high pressure switch for the PY2PEB042060AA packaged unit. This refrigerant-side safety device continuously monitors system discharge pressure, opening the control circuit at 395 PSI and resetting at 295 PSI to protect the compressor from catastrophic over-pressure damage. When this switch fails or trips without resetting, the unit will lock out on a high-pressure fault — often presenting as a no-cool condition, repeated compressor short-cycling, or a fault code on the thermostat or control board.

• Specs: Open (trip) pressure: 395 PSI | Close (reset) pressure: 295 PSI | Voltage: 240 VAC | Current: 6(6)A | Connection: 1/8"-NPT fine thread | Terminal: Quick-connect blade | Manufactured by Sensata (Pressurestat PS80-03-0018)
• OEM vs Generic: This genuine Carrier Factory Authorized Part is manufactured to exact OEM trip-point tolerances. Aftermarket substitutes frequently deviate from the 395/295 PSI setpoints, risking either nuisance trips under normal operating pressure or — more dangerously — failure to trip during a true over-pressure event, leading to compressor failure.
• Install difficulty: 2/5 — Recover all refrigerant and verify system is depressurized to 0 PSI before removing the switch. Tools needed: refrigerant recovery machine, manifold gauges, 1" open-end wrench, thread sealant (use PTFE tape rated for refrigerant). Always leak-test after reinstallation before recharging.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Verified OEM fit for Carrier model PY2PEB042060AA packaged unit. This switch also cross-references and replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Always confirm your unit's data plate and wiring diagram before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — contact us today.