The Resideo AT140A1018 Transformer is a heavy-duty 40VA power solution designed for high-demand 24Vac circuits in residential and commercial HVAC systems

a durable O-ring

replacing the evaporator scale pad annually is essential to prevent mineral scale buildup

a different compression nut and sleeve assembly is required

Can I use a 440V capacitor if the old one was rated for 370V

White-Rodgers F145-0650 Adapter And Compound The Resideo AT140A1018 Transformer isThe White Rodgers F145 0650 is a specialized immersion well adapter kit engineered to optimize thermal transfer between sensing bulbs and liquid temperature controllers. When replacing legacy thermostats or installing new aquastat controllers, the physical fit between the bulb and the well is critical. This site ready package includes a precision machined well adapter and high performance heat transfer compound (packing grease) to eliminate air gaps.