Tight Shut-off: Designed to meet ANSI Class IV leakage standards for superior system performance

it is built to withstand rigorous duty cycles and high ambient temperatures commonly found in rooftop installations

and 240V control circuits

It is not intended for use with standing pilot systems that require a thermocouple/thermopile

it supports consistent alignment and helps extend the life of belts and pulleys in AAON equipment

Heatcraft Refrigeration 4115D Nozzle 328140-751 Tight Shut-off: Designed to meetThe Heatcraft Refrigeration 4115D Nozzle is a critical metering component engineered for precise refrigerant distribution in commercial refrigeration systems. Designed as an L 3 4 nozzle, this part facilitates the transition between the expansion valve and the distributor tubes, ensuring a balanced mass flow across the evaporator circuit. The 3 4 inch diameter is optimized to minimize pressure drop while maintaining the necessary velocity for oil