Honeywell AQ25044B Aquatrol Boiler Control Panel W/ DHW Priority for 4 Zones (w end switches)

Honeywell Aquatrol Boiler Control Panel with DHW priority for 4 zones of Pumps or 2-wire valves. The AQ250 family of AQUATROL Boiler Controls provides simplified, energy-efficient control of single temperature, residential hydronic heating systems. The AQ250 easily converts a single zone heating system into a room-by-room comfort control system, or upgrades a basic, relay-logic zoning system to intelligent Zone of Greatest Demand control for increased energy efficiency with reduced boiler cycling. AQ250 boiler controls can ensure ample supply of hot water for both space heating and priority generation of domestic hot water for bathing, dishes and laundry. Replaces R8888A1007, R8888A1015, R8888A1005, R8888A1013 and AQ2504B2 controls.