This genuine Aaon HVAC part is precision-balanced to reduce operational noise and vibration

this Mini HSI ignitor features 5

it sequences four poles to ensure bank 1 energizes on the first-stage call

Optimized Energy Management: Real-time processing of atmospheric data allows for efficient economizer air-side operation

Optimized Drainage: Prevents condensate backup into the combustion chamber

York S1-3300-3861 Transformer 318423-701 This genuine Aaon HVAC partThe York S1 3300 3861 Transformer is a heavy duty, field ready component designed for precise voltage regulation in residential and light commercial HVAC systems. This 40VA foot mount transformer provides a stable step down from a 208 240V primary input to a 24V secondary output, making it an essential replacement for failing control circuit power supplies in York, Coleman, and Luxaire equipment. Its foot mount configuration ensures a secure,