Marvair 70947 Control Board 320720-756 brass bar stock OVE-30-VX100 expansion

brass bar stock OVE-30-VX100 expansion valve designed for high-capacity air conditioning and refrigeration systems

Smith 100271315 Limit Switch is a critical safety component engineered for high-performance hydronic and water heating systems

Thermal Protection: Robust motor windings are designed for continuous duty in high-ambient commercial kitchens without overheating

Reliable PSC Design: Built-in thermal protection prevents windings from burning out during restricted airflow events

ensuring seamless integration with your DDC controller or command relay interface

Marvair 70947 Control Board 320720-756 brass bar stock OVE-30-VX100 expansionThe Marvair 70947 Control Board is the central diagnostic and operational hub for high efficiency Marvair HVAC systems, including MAH and MGH vertical wall mounted units. As a veteran grade OEM replacement control board, this component is engineered to manage critical HVAC system functions such as compressor sequencing, low ambient fan cycling, and lead lag logic. It features an integrated diagnostic LED to assist technicians with rapid fault