Description
Lennox 33F38 Thermostatic Expansion Valve (TXV)
The Lennox 33F38 is a factory-engineered thermostatic expansion valve (TXV) designed for precise refrigerant metering in residential and light commercial cooling systems. Engineered to Lennox specifications, this OEM-grade TXV ensures optimal system efficiency, consistent superheat control, and reliable performance across a wide range of operating conditions.
Key Features
- Rated for 4-ton system capacity
- 3/8″ ODF inlet connection for liquid line compatibility
- 5/8″ ODF outlet connection for evaporator coil connection
- 30″ capillary tube for flexible bulb placement and accurate sensing
- OEM Lennox replacement part — direct-fit for compatible Lennox equipment
- Maintains consistent superheat for maximum system efficiency
- Helps prevent compressor flooding and slugging
Application
The Lennox 33F38 TXV is ideal for use in split-system air conditioners and heat pumps where precise refrigerant flow control is required. The thermostatic expansion valve responds dynamically to system load changes, modulating refrigerant flow to maintain the correct superheat at the evaporator outlet — protecting the compressor and maximizing energy efficiency.
Why Choose the Lennox 33F38?
- Direct OEM replacement for Lennox systems — ensures proper fit and function
- Improves system efficiency by maintaining optimal superheat
- Durable construction for long service life
- Supports reliable, low-maintenance operation
- Reduces risk of compressor damage from refrigerant flooding
Specifications
- SKU: 33F38
- Brand: Lennox
- Type: Thermostatic Expansion Valve (TXV)
- System Capacity: 4 Ton
- Inlet Connection: 3/8″ ODF
- Outlet Connection: 5/8″ ODF
- Capillary Length: 30″
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