The First Company 9EVR22-4 is a genuine OEM Thermostatic Expansion Valve (TXV) designed as a direct replacement for compatible First Company fan coil and air handler systems. TXVs play a critical role in refrigerant circuit performance — precisely metering refrigerant flow into the evaporator coil to maintain optimal superheat, protect the compressor, and maximize system efficiency across varying load conditions.
Why TXV Matters
Unlike fixed-orifice metering devices, a thermostatic expansion valve continuously modulates refrigerant flow in response to real-time load changes. This dynamic control results in more consistent cooling performance, reduced compressor wear, and improved energy efficiency — making the TXV a key component in any high-performance HVAC system.
Key Features
- Genuine First Company OEM replacement TXV
- Designed for precise superheat control and refrigerant metering
- Helps protect the compressor from liquid floodback
- Supports consistent system performance across varying load conditions
- Direct replacement for compatible First Company air handler and fan coil units
- Built to OEM specifications for reliable, long-lasting operation
Application
The 9EVR22-4 TXV is intended for use in First Company residential and light commercial fan coil and air handler systems. Always verify compatibility with your specific equipment model before installation. Consult the First Company product documentation or your distributor for system-specific guidance.
Installation Notes
- Installation should be performed by a licensed HVAC technician
- Ensure system refrigerant is recovered prior to valve replacement
- Verify correct bulb placement and insulation after installation
- Check and adjust superheat settings as required per system specifications








