The HVAC control board is 18-30Vac rated and monitors thermostat demands across all modes—heat

This OEM replacement part is essential for maintaining the safety parameters of the boiler’s low water protection system and ensuring accurate float response

917166C is the direct replacement for 917166B

Key Benefits for Technicians Environmental Protection: The NEMA 4X rated aluminum enclosure provides superior corrosion resistance and a weatherproof seal for harsh outdoor installations

clogged 2-inch pleated filters

York S1-025-30867-001 Transformer Freon The HVAC control board isThe York S1 025 30867 001 Transformer is a heavy duty step down component engineered for industrial and commercial HVAC applications requiring precise voltage regulation. This genuine OEM part features a multi tap 460 575V primary input and a stable 230V secondary output, rated at 165VA. Designed to handle high demand electrical loads, it ensures that your system's control circuits and auxiliary components receive consistent power, preventing