Heat Controller 8768 Board 323080-701 the 400147-221-D is the direct

the 400147-221-D is the direct replacement for 400115-221-D

DIN-Rail or Surface Mount: The compact housing fits standard 11-pin sockets for easy integration into existing control panels

Replacing it with a single-stage or universal switch can bypass critical safety protocols and lead to improper combustion or system failure

Is the HK02ZA404 a manual or automatic reset switch

Industrial Durability: Heavy-duty construction designed to resist deformation under high spring loads in pneumatic control valves

Heat Controller 8768 Board 323080-701 the 400147-221-D is the directThe Heat Controller 8768 Hydro Microprocessor Board is a specialized genuine OEM replacement control board designed for high precision management of hydronic HVAC systems. As an essential HVAC circuit board, it serves as the central logic unit for Comfort Aire HWCG series air handlers and compatible wall mount hydronic heating and cooling units. This microprocessor control board utilizes advanced algorithms to synchronize water flow, temperature