Description
The Lennox 29M12 is a 6-Ton Thermostatic Expansion Valve (TXV) engineered for precise refrigerant flow control in commercial and residential HVAC systems. Featuring 3/8″ liquid-line and 1/2″ suction-line ODF connections along with a 30″ capillary tube, this valve delivers accurate superheat regulation to maximize system efficiency, protect the compressor, and extend equipment life.
Key Features
- 6-Ton capacity — suited for larger commercial and high-capacity residential applications
- 3/8″ ODF liquid-line inlet connection for secure, leak-free installation
- 1/2″ ODF suction-line outlet connection for compatibility with standard refrigerant line sets
- 30″ capillary tube for flexible bulb placement and precise superheat sensing
- Thermostatic expansion valve design maintains consistent superheat across varying load conditions
- Genuine Lennox OEM replacement part — engineered for direct compatibility with Lennox equipment
Why TXV Matters
A properly functioning thermostatic expansion valve is critical to system performance. The 29M12 meters refrigerant flow in response to evaporator load changes, preventing liquid slugging and compressor damage while ensuring the evaporator operates at full capacity. Replacing a failed or underperforming TXV with a genuine Lennox part restores factory-specified efficiency and reliability.
Specifications
- SKU: 29M12
- Brand: Lennox
- Valve Type: Thermostatic Expansion Valve (TXV)
- Capacity: 6 Ton
- Liquid-Line Connection: 3/8″ ODF
- Suction-Line Connection: 1/2″ ODF
- Capillary Tube Length: 30″
Applications
- Lennox commercial and residential split systems
- Direct OEM replacement for compatible Lennox equipment
- Refrigerant metering in air conditioning and heat pump systems
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