Description
The Lennox 42W31 is an OEM thermostatic expansion valve (TXV) engineered for reliable, precise refrigerant metering in 5-ton cooling applications. Designed to Lennox’s exacting standards, this valve ensures optimal system efficiency and consistent superheat control across a wide range of operating conditions.
Key Features
- OEM Lennox replacement TXV for direct, hassle-free installation
- 3/8″ inlet x 1/2″ ODF outlet connections for secure, leak-free refrigerant lines
- Rated for 5-ton (60,000 BTU/hr) system capacity
- 30″ capillary tube for flexible bulb placement and accurate sensing
- Maintains precise superheat control to protect the compressor and maximize efficiency
- Durable construction built to withstand the demands of residential and light commercial HVAC systems
Product Specifications
- SKU: 42W31
- Brand: Lennox
- Valve Type: Thermostatic Expansion Valve (TXV)
- Inlet Connection: 3/8″ ODF
- Outlet Connection: 1/2″ ODF
- System Capacity: 5 Ton
- Capillary Tube Length: 30″
Application
The Lennox 42W31 TXV is the ideal OEM replacement for Lennox split systems and air conditioning equipment requiring a 5-ton thermostatic expansion valve. Proper TXV function is critical to maintaining the correct refrigerant flow rate, protecting the compressor from liquid slugging, and ensuring the system operates at peak efficiency. Always verify compatibility with your specific Lennox equipment model before installation.
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