Description
First Company 9EVR454B-4 TXV Kit — A2L R454B for Unitary Equipment
The First Company 9EVR454B-4 is a factory-engineered Thermostatic Expansion Valve (TXV) Kit designed specifically for use with A2L-classified R454B refrigerant in First Company unitary (UC) equipment. As the HVAC industry transitions to next-generation, lower-GWP refrigerants, this kit ensures your system delivers precise refrigerant metering, optimal superheat control, and reliable performance in compliance with current A2L refrigerant standards.
Key Features
- Engineered for A2L R454B refrigerant — a low-GWP, next-generation alternative to R410A
- Designed as a direct-fit TXV kit for First Company unitary (UC) equipment
- Ensures accurate refrigerant metering and superheat regulation for peak system efficiency
- Supports compliance with evolving refrigerant transition requirements
- OEM-quality components for reliable, long-term performance
- Simplifies field installation with a complete kit configuration
Application
This TXV kit is intended for use with First Company UC (unitary/under-ceiling) equipment operating on A2L R454B refrigerant. It is the correct replacement or upgrade component when servicing or retrofitting First Company systems to meet current refrigerant standards. Always follow applicable local codes, manufacturer guidelines, and A2L refrigerant safety protocols during installation.
Why R454B (A2L)?
R454B is a hydrofluoroolefin (HFO) blend classified as A2L — mildly flammable with a significantly lower Global Warming Potential (GWP) compared to R410A. It is increasingly specified by OEMs as the preferred refrigerant for new and transitioning unitary HVAC equipment, offering improved environmental performance without sacrificing system efficiency.
Specifications
- SKU: 9EVR454B-4
- Brand: First Company
- Refrigerant Compatibility: R454B (A2L)
- Application: Unitary (UC) Equipment
- Component Type: Thermostatic Expansion Valve (TXV) Kit
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