Description
The Lennox 59W19 is an OEM thermostatic expansion valve (TXV) engineered for precise refrigerant metering in residential and light commercial cooling systems. Designed to Lennox’s exacting specifications, this valve delivers consistent superheat control to optimize system efficiency, protect the compressor, and maintain peak performance across a wide range of operating conditions.
Key Features
- OEM Lennox replacement TXV — direct fit for compatible Lennox systems
- 3/8″ inlet x 1/2″ ODF outlet connections for straightforward installation
- 3-ton (36,000 BTU/hr) rated capacity
- 30″ external equalizer / cap tube for accurate sensing and superheat regulation
- Thermostatic expansion valve design provides automatic refrigerant flow control in response to evaporator load changes
- Helps maintain optimal superheat, protecting the compressor from liquid slugging
- Supports system efficiency and comfort consistency
Specifications
- SKU: 59W19
- Brand: Lennox
- Valve Type: Thermostatic Expansion Valve (TXV)
- Inlet Connection: 3/8″ ODF
- Outlet Connection: 1/2″ ODF
- Capacity: 3 Ton (36,000 BTU/hr)
- Cap Tube Length: 30″
Application
The Lennox 59W19 TXV is intended for use in Lennox split-system air conditioning and heat pump equipment where the original thermostatic expansion valve requires replacement. Always verify compatibility with your specific Lennox unit model before installation. Proper TXV sizing and installation are critical to system performance — consult Lennox service documentation and follow all applicable codes and safety standards.
Reviews
There are no reviews yet.