Resideo AT72D1683 Transformer 318172-701 for sweat-style bodies like the

for sweat-style bodies like the VCZAA1100

Common Questions What is the proper mounting orientation for this switch

this aftermarket bonnet assembly offers a cost-effective alternative to OEM parts without compromising threading precision or material durability

ensuring a direct-fit replacement that maintains the original equipment’s airflow specifications and sound profile

High-Performance Modulation: Provides smooth

Resideo AT72D1683 Transformer 318172-701 for sweat-style bodies like theThe Resideo AT72D1683 Transformer is a professional grade solution for stepping down 120V primary voltage to a 24V secondary output, optimized for residential and light commercial HVACR control circuits. Rated at 40VA, this NEMA Type D transformer is engineered to provide stable power for 24V thermostats, gas valves, and relays. The 4"x4" plate mounted design ensures compatibility with standard electrical boxes, while the 9 inch leadwires offer