Emerson Alco 022003 Valve

The Emerson Alco 022003 (Model LCLE 2-A) is a critical-grade liquid injection valve designed for effective de-superheating in medium and low-temperature refrigeration systems. Built for compatibility with R22, R404A, and R507 refrigerants, this valve prevents compressor overheating by injecting liquid refrigerant into the suction line based on discharge temperature. Featuring a 1/4" SAE flare external equalizer, the LCLE 2-A provides precise modulation, ensuring the thermostatic expansion valve (TXV) functionality maintains the compressor within a safe operating envelope. Its rugged brass body and stainless steel internal components are engineered to withstand the thermal stress of heavy-duty HVACR cycles. By stabilizing superheat levels, this component protects motor windings from premature failure and optimizes the compression ratio. For contractors performing system retrofits or repairs, this de-superheating expansion valve offers a reliable solution for maintaining refrigeration system efficiency in demanding commercial environments.

• Multi-Refrigerant Compatibility: Seamlessly integrates with R22, R404A, and R507 systems.
• Precise Thermal Control: Proportional liquid injection prevents high discharge temperatures that lead to oil breakdown.
• External Equalization: The 1/4" SAE flare connection allows for accurate pressure sensing downstream of the evaporator.
• Extended Compressor Life: Reduces thermal load on the compressor, preventing common mechanical failures.
• Durable Construction: High-grade materials ensure long-term performance in high-pressure liquid injection applications.

How do I set the discharge temperature for this liquid injection valve?
The valve is factory-set but can be field-adjusted by turning the adjustment stem to maintain the specific superheat required to keep the compressor discharge within the manufacturer's recommended limits.

Can the LCLE 2-A be used in place of a standard TXV?
No, this is a de-superheating valve specifically calibrated for liquid injection. Using it as a standard thermostatic expansion valve for an evaporator will result in improper refrigerant flow and potential liquid slugging.

What is the primary function of the external equalizer on the 022003?
The external equalizer compensates for pressure drops across the injection point, ensuring the valve responds accurately to the suction pressure and temperature to provide precise cooling to the compressor.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.