Lennox Y7647 – Lennox 15500204000021 High Pressure Valve

The Lennox 15500204000021 high pressure valve is an OEM safety and control component engineered to regulate refrigerant pressure within Lennox air conditioning and heat pump systems. This valve protects the compressor by preventing excessive high-side pressure, ensuring stable operation, efficient cooling performance, and long-term equipment dependability.

Designed for direct Lennox compatibility, the Y7647 high pressure valve supports accurate system cycling and maintains manufacturer-specific pressure thresholds. Its rugged construction provides reliable performance in demanding residential and light commercial HVAC environments, making it a key component for service, troubleshooting, and system restoration.

 

Key Features

• OEM Lennox 15500204000021 high pressure valve
• Controls and stabilizes high-side refrigerant pressure
• Prevents compressor damage caused by overpressure conditions
• Ensures proper system shutdown and restart thresholds
• Manufactured for consistent, long-term reliability
• Direct-fit replacement for select Lennox AC and heat pump systems
• Ideal for maintenance, repairs, and system performance optimization

 

Specifications

• Part Number: Y7647
• Catalog/Item Number: 15500204000021
• Component Type: High Pressure Valve
• Application: Refrigerant circuit pressure regulation
• System Type: Residential and light commercial HVAC
• Compatibility: Select Lennox air conditioners and heat pumps
• Function: Protects compressor by opening at preset high-side pressure
• Material: Heavy-duty brass and pressure-rated internal components
• Installation: Inline refrigerant circuit, technician-installed

Country of Origin
• United States