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HONEYWELL AQ2504B4 Aquatrol Boiler Control Panel for 4 Zone Pump

HONEYWELL AQ2504B4 Aquatrol Boiler Control Panel for 4 Zone Pumps or Valves. The AQ2504B family of Aquatrol Boiler Controls provides simplified, energy-efficient control of single-temperature, residential hydronic heating systems. It works with the AQ1000T communicating thermostats to convert 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 and reduced boiler cycling.


Factory configured for control of up to four zones plus domestic hot water.

Expandable up to 16 zones with expansion zoning modules (sold separately).

Single stage boiler control synchronized to zone-of-greatest-demand.

Reduced boiler short-cycling.

Integral Domestic Hot Water control.

Installer selectable DHW Priority.

Installer selectable DHW Priority Override.

Replacement Parts: AQ1574V4 4-zone valve with end switch expansion module. AQ10X38 24 Vac 38 VA transformer, AQ12C10 outdoor sensor, AQ12C11 supply/return sensor.

This product was added to our catalog on Wednesday 25 July, 2007.

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