Mcquay Daikin 111011635 Valve

The McQuay Daikin 111011635 Valve is a 3/8" x 5/8" thermostatic expansion valve (TXV) designed for precise refrigerant metering in specialized HVAC systems. This HVAC expansion valve 111011635 features an external equalizer to accurately monitor evaporator pressure, preventing erratic superheat and protecting the compressor from liquid slugging. Engineered as a high-performance Daikin refrigerant control valve, it replaces several legacy parts, including 802026136 and 02026136. When performing a TXV replacement, ensure proper bulb placement on the suction line to maintain optimal thermal contact. This non-electronic valve is a critical HVAC repair part for contractors maintaining Daikin and McQuay equipment, ensuring the evaporator coil operates at peak efficiency. Its rugged construction supports consistent performance across a wide range of operating temperatures and pressures, making it a reliable choice for professional HVAC system troubleshooting and maintenance.

• Precise Refrigerant Metering: Maintains consistent superheat to maximize evaporator efficiency.
• External Equalizer Integration: Compensates for pressure drops across the evaporator coil for more accurate sensing.
• Legacy Compatibility: Direct OEM replacement for part numbers 802026136, 02026136, and 481657B-01.
• Heavy-Duty Construction: Built for the rigors of commercial and industrial HVACR environments.

• How do I know if this TXV is failing? Common indicators include high superheat (starving the coil) or low superheat (flooding), frost on the equalizer line, or erratic suction pressures.
• Do I need to change the piping for this valve? While it replaces older 3/8" x 5/8" models, always verify current line sizes as some updated versions may require minor piping adjustments.
• What should I do with the old thermistor? When replacing electronic-hybrid predecessors, the old thermistor leads should be cut and left on the suction line, as this is a mechanical expansion valve.

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.