Resideo AT88A1005 Transformer 318172-701 If the PIT0224 is carbonized

If the PIT0224 is carbonized or the aeration port is blocked

Field-Ready Durability: Constructed from high-grade materials to withstand thermal expansion and vibration typical in professional HVACR environments

it ensures that a technician must inspect the venting system for blockages before the boiler can be placed back into service

OEM Compatibility: Specifically designed for seamless integration with the Lennox HCSteam-35 series

The Alco X-11873-B5B cage is built to maintain system stability under varying load conditions

Resideo AT88A1005 Transformer 318172-701 If the PIT0224 is carbonizedThe Resideo AT88A1005 is a heavy duty, foot mounted HVAC control transformer designed to deliver reliable 24V power to high demand commercial and residential systems. Engineered as a 75VA transformer, this unit effectively steps down 120V primary voltage to a stable 26. 5V secondary output, providing the extra capacity needed for complex multi stage systems or zones. The internally fused secondary provides critical overload protection, preventing