Resideo AT72D1089 Transformer R-407C This 3-inch flanged main valve

This 3-inch flanged main valve features a robust cast iron body with an ANSI 125# flange rating

Using this unit with water may lead to internal corrosion and failure

The CWLE rotation (Clockwise Lead End) and 5/16" x 2

whereas 2AK sheaves are smaller and designed primarily for A-section belts

the 14T64 handles both high and low-fire stages

Resideo AT72D1089 Transformer R-407C This 3-inch flanged main valveThe Resideo AT72D1089 Transformer is a professional grade solution for technicians requiring a reliable 120V to 24V step down for HVAC control circuits. Engineered with a 40VA power rating, this unit is built to manage the electrical load of 24VAC thermostats, gas valves, and multi zone relays. The hardware features a 4"x4" plate mount design and a NEMA Type D enclosure, ensuring compliance with NEC Class 2 (not wet) and Class 3 (wet) requirements.