Common Questions: Does this board replace older RLY20055 models

This HVAC replacement ignitor is vital for maintaining the secondary commissioning standards of high-efficiency gas furnaces

making it ideal for gravity-fed gas furnaces and older floor heaters

providing a higher level of reliability than the mechanical relays it replaces

Carrier P461-3507 Motor Pulley 319848-301 Common Questions: Does this boardThe Carrier P461 3507 Motor Pulley is a high performance, adjustable pitch pulley engineered for precise airflow adjustment in commercial fan coil units and package heat pumps. Constructed from heavy duty cast iron, this 5 8" bore sheave provides superior durability and vibration resistance compared to standard stamped steel alternatives. It features an outer diameter of 4. 25 inches and is designed for 1 groove belt configurations. The adjustable