Honeywell AQ2511B0 - Aquatrol Boiler Reset Control Panel

The Honeywell AQ2511B0 AQUATROL boiler reset control provides simplified, energy-efficient outdoor temperature compensated control of single temperature, residential hydronic heating systems. The AQ2511B0 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 with outdoor reset for in-creased energy efficiency with reduced boiler cycling. AQ2511B0 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.

Features 
 
The Honeywell AQ2511B0 is to be used with AQ1000 2-wire polarity-insensitive communicating thermostats (AQ2514B2 and AQ2514B4) or dry contact thermostat (AQ2511B0). The modulating output (0-10 Vdc) drives a modulating/condensing boiler. The AQ2511B0 displays outdoor temperature on all thermostats when used with the included AQ12C10 outdoor sensor. Includes an intuitive programming interface and armchair programming, meaning that the control  can be programmed at your desk and taken to the job site "ready-to-install". The customizable control settings and schedules allow for a greater level of control and comfort. Also includes central programming of zone set points and setback, 1-stage zoning, integral 38 VA transformer with self resetting electronic fuse, 2-hour power supply (super-capacitor) to retain day and time settings during power outage, and 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. The outdoor temperature compensation (reset), or load reset is based on indoor temperature feedback while zone synchronization is made possible through zone of greatest demand control.Provides domestic hot water priority and priority override protection, line or low-voltage output for zoning equipment (pumps or valves), boiler short cycling protection, and boiler post purge, freeze protection, pump/valve exercise, and boiler shock prevention from cold water returning to boiler. The automated test and purge feature allows for quick start-up and simplified troubleshooting while the
non-volatile EPROM memory retains program settings during a power outage.

Product Specifications