provided the replacement coil is compatible with the 8040 series valve body and enclosure type

and necessary disc assemblies to ensure a drip-tight seal and reliable backflow protection

it is the direct replacement for many Bryant and Payne models

As a trusted HVAC mechanical relay

always verify the maximum working pressure (typically 450 psig) against your system requirements

Lennox 21W89 Transformer/Relay 326058-758 provided the replacement coil isFor veteran technicians looking to maintain system integrity, the Lennox 21W89 Transformer Relay is a critical OEM component engineered for precision HVAC voltage regulation. This heavy duty transformer relay assembly is designed to step down 120V line voltage to a consistent 24VAC output at 40VA, 50 60Hz, ensuring stable low voltage control circuit operation even in demanding environments. By integrating a high performance electromechanical relay,