Aquatrol Zoning Control, for 4 Zones of 4-wire valves with end switches (24 Vac), used for Hydronic Zoning Systems

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Honeywell Home AQ25744B/U Aquatrol Zoning Control, for 4 Zones of 4-wire Valves with End Switches (24 Vac), Used for Hydronic Zoning Systems

Name: Honeywell Home AQ25744B/U Aquatrol Zoning Control, for 4 Zones of 4-wire Valves with End Switches (24 Vac), Used for Hydronic Zoning Systems
Brand: Honeywell Home
SKU: HONE-AQ25744B/U
Price: 345.60 USD
Availability: InStock

Limited availability

Honeywell HomeSKU: HONE-AQ25744B/U

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Price:

$345.60

Stock:

Only 2 units left

Quantity:

Usually ships in 1–2 business days.

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Shipping details

Shipping weight: 5.5 lb
Box size: 13.8 × 5.7 × 5.7 in

Electrical Connections	Wire-clamp screw terminals, Maximum 2 x 14 AWG each on line voltage terminals
Operating Humidity	5 to 90% RH, non-condensing
Application	Zoning control for hydronic zoning system
Dimensions	9 1/2 in wide x 8 in. high x 3 3/8 in. deep
CSA	CSA C/US Certified to CSA and UL Standards, File No. LR76030
Weight (lb)	3.9 lbs
Weight (kg)	1.8 kg
Thermostat Compatibility	AQ1000 Series 2-wire communicating thermostats and most digital thermostats
User Interface	DIP Switches
Number of Zones	4
Zoning Devices Controlled	Zone valves with end switches (24 Vac)
R-C Input (on Control and Zoning Modules)	24 Vac Class II (input on Control and Zoning Modules)
B-B Communication Bus Terminals	Low voltage, Class II, 2-wire polarity-insensitive, digital communicating link to other Control or Zoning modules.
Zone Module Thermostat Input	Low voltage, Class II, 2-wire polarity-insensitive, digital communicating with power link to AQ1000 series thermostat.
Zone Output Contact Rating	120 Vac/250 Vac, 0.5A, 12VA
Replacement Parts	AQ10X38 24 Vac 38 VA transformer,AQ15740B 4-zone valve with end switch expansion module
Temperature Ratings (F)	Panel--32 F to 130 F

The AQ25744B is a zoning panel from Honeywell Home.

A zoning control is what lets one boiler serve rooms that do not all want heat at the same time. Each zone gets its own thermostat and its own valve or pump; the panel takes the calls, drives the valves, and starts the boiler and circulator only when something actually needs heat.

The part that matters on installation is what the panel expects from the valve. A 2-wire valve is simply driven open; a 4-wire valve has an end switch that reports back when it has finished opening, and the panel waits for that before starting the circulator. Matching the panel to the valve type is what keeps the pump from running against a closed zone.

This panel is built for 4-wire zone valves.

Size the panel to the zone count you will have, not the count you have today. Adding a zone later means replacing the panel, and the cost difference between four zones and six at the time of install is small compared with doing it twice.

Brand: Honeywell Home
Manufacturer Part #: AQ25744B/U
Type: Zoning panel
Shipping weight: 4.6 lb
Category: Zone Controls

Full Specifications

Application	Zoning control for hydronic zoning system
Approvals and Standards	CSA C/US Certified to CSA and UL Standards, File No. LR76030
BB - Com Terminal	Low Voltage, Class II, 2-Wire polarity-insensitive, Digital Communicating Link to other Control or Zoning Modules
Includes	End Switches
Product Depth	3.38 in, 8.5 cm
Product Height	8 in, 20.3 cm
Product Weight	3.9 lb, 1.8 kg
Product Width	9.4 in, 23.8 cm