Справочник Пользователя для Honeywell AQ251

69-1979-04

AQ251

The AQ251 series of AQUATROL® Boiler Reset Controls 

provides simplified, energy-efficient outdoor temperature 

compensated control of single-temperature, residential 

hydronic heating systems. The AQ251 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 increased energy efficiency and with reduced boiler 

cycling. 

AQ251 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.

When AQ1000 communicating thermostats are used with the 

AQ251 Zoning Modules, they can use the same wiring as 

existing thermostats. Night setback operation can be 

programmed from the AQ251 panel. Thanks to the network 

communication capability of the AQ251 controls, AQ1000 

thermostats in the home can display the actual outdoor 

temperature when an outdoor sensor is connected to the 

AQ251 Control Panel.

The AQUATROL AQ251 installed on your heating system is 

the most powerful, yet user-friendly hydronic heating control 

system available on the market for residential and light 

commercial installations.

This instruction sheet contains all the information you need to 

program the comfort settings of the AQ251 and to customize 

its operation for your home or business. For detailed 

information on the operation of this control, please consult the 

trained hydronic heating professional that installed the AQ251 

control.