What is the purpose of the expanded 1-1/4" outlet

Using this valve with R-410A will result in incorrect pressure readings and potential system failure

indicating a potential draft issue or heat exchanger compromise

this kit enables seamless integration of TFB(X) spring return actuators into existing mechanical linkages

Mcquay Daikin 073336504 Valve Refrigerant What is the purpose ofThe McQuay Daikin 073336504 is a heavy duty single stage gas valve engineered for precision fuel regulation in commercial and industrial HVACR systems. Operating on a 120V pilot duty circuit, this component is factory calibrated for Natural Gas with a standard 3. 5" W. C. outlet pressure setting. Featuring 3 4" NPT inlet and outlet ports, it ensures high flow capacity and consistent manifold pressure for reliable burner ignition and flame stability.