specifically in economizer control and packaged rooftop air handlers

What is the difference between the L404F1060 and L404F1060/U

3-inch outside diameter and a precise 1/2-inch bore

The internal feedback potentiometer allows for accurate positioning when paired with compatible 2 to 12 VDC controllers

Delivering a nominal 54

York S1-1HT0901 Kit 320788-704 specifically in economizer control andThe York S1 1HT0901 Horizontal Vent Terminal Kit is a field installed accessory engineered for sidewall, two pipe venting of 90% AFUE gas furnaces. This 3 inch sidewall vent termination is built to manage the exhaust and intake requirements of high efficiency condensation units, providing a cleaner, more professional finish than standard field fabricated elbows. As a veteran preferred HVAC vent termination kit, it ensures proper clearance and prevents