Pressure Switch 448#Op/327#Cls

HK02ZA442 is the cross of HK02ZA428

Carrier HK02ZA442 High Pressure Switch – Genuine OEM Replacement Part

Maintain safe and reliable HVAC operation with the Carrier HK02ZA442 Pressure Switch. Engineered to monitor and regulate system pressure, this high pressure switch (448# Open / 327# Close) helps protect heat pump equipment from abnormal pressure conditions while supporting optimal performance.

🔧 Product Overview

The Carrier HK02ZA442 High Pressure Switch is a genuine OEM component designed specifically for Carrier systems. Built to precise factory standards, it ensures accurate pressure sensing, dependable switching action, and long-lasting durability in demanding HVAC environments.

⚙️ Key Specifications

• Brand: Carrier

• Part Number: HK02ZA442

• Product Type: High Pressure Switch

• Pressure Rating / Model: 448# Open / 327# Close

• Application: Heat pump pressure monitoring & safety control

✅ Key Features

✔ Genuine OEM Carrier Part – Exact fit, function, and reliability
✔ 448# Open / 327# Close – Designed for precise pressure response
✔ System Protection – Helps prevent damage from excessive pressure
✔ Reliable Performance – Supports stable and safe operation
✔ Durable Construction – Built for HVAC operating conditions

🛠️ Compatible / Fits Popular Models

• 580FPV102224AB

• 580FTV121250AA

• 581BPV072150AH

(Always verify compatibility using the model and serial number.)

🌡️ Why Replace a High Pressure Switch?

A properly functioning pressure switch is critical for:

• Protecting compressors and system components

• Maintaining safe operating pressures

• Preventing unexpected shutdowns

• Ensuring efficient heat pump performance