Johnson Controls A421GEF-01C Electronic Temperature ControlElectronic Temperature Control Johnson Controls A421GEF 01C delivers precise regulation for 1 Stage Refrigeration and HVAC systems. This unit features a Type 9 7 8 inch cable, a 24 Volt AC contact rating, and a rugged NEMA 4X enclosure for reliable operation in challenging environments. Designed for straightforward surface mounting, it pairs seamlessly with A99BB 25C Temperature Sensor to deliver accurate temperature control across industrial

and PGH120LFA00AAA ensure a versatile fit across multiple configurations

end connections: female threaded

The valve is normally closed (NC) and mounts directly in the pipe or on a support bracket for flexible installation in various burner systems

Built with an aluminum body for durable service

Order today to ensure a quick thermopile replacement and restored performance

Ideal for homeowners and service techs seeking reliable

68D × 6H) fit tight spaces

Port Connections: 3/4" Threaded x 3/4" Threaded

Crafted to fit the 3666U configuration

impeller gasket

The brass disc and non-stick seal ensure smooth operation and long life

while operating temperatures from 14 to 122°F keep it reliable across seasons