AQ251 Aquatrol® Boiler Reset Controls

• Simplified, energy-efficient outdoor temperature compensated control of single-temperature, residential hydronic heating systems
• Works with AQ1000 communicating thermostats and most digital dry contact thermostats
• Converts a single zone heating system into a room-by-room comfort control system or upgrade a basic relay-logic zoning system to an intelligent "zone of greatest demand" control
• Zoning Control for up to four zones as shipped; can be expanded to a total of 16 zones with AQ255 or AQ257 expansion zoning panels, and up to 64 zones by using AQ254 Add-a-Temperature expansion panels