Honeywell Home AQ25042B/U Aquatrol Hydronic Zone Control Panel with DHW Priority, 4 Zones

Aquatrol hydronic zone control panel with domestic hot water (DHW) priority that controls 4 zones of pumps or 2-wire valves.

Features

• Use with AQ1000 two-wire communicating thermostats, or most dry contact digital thermostats
• Offers zoning control for up to four zones and controls up to two stages of heat from a single thermostat
• Can expand up to 16 zones with AQ255 or AQ257 or up to 64 zones with AQ254 Add-A-Temp panels
• Line or low-voltage output for zoning equipment, including pumps or valves
• Features zone synchronization through the zone or Greatest Demand control
• Includes domestic hot water priority, priority override protection and boiler short cycling protection
• Automated test feature for quick start-up and simplified troublshooting

Specifications

• Brand: Resideo (Honeywell Home)
• Manufacturer Part #: AQ25042B/U
• Application: Boiler control for hydronic zoning systems
• 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
• Demand Input: Heat Demand (Thermostat R-W) and DHW Demand, External dry contacts connection only
• Dip Switches: Yes
• Output Rating: Boiler (T-T): 24 V AC 0.5 A/12 V A, Boiler Pump: 120 V AC 250 V AC/5 A/1/3HP, DHW Pump/Valve: 120 V AC/250 V AC 5 A/1/3 HP, Auxiliary Pump: Dry contact output, 120 V AC/250 V AC 5 A/ 1/3 HP
• Postpurge: 30 seconds (sent to DHW tank or Zone of Greatest Demand - selectable)
• Compatible With: AQ1000 Series 2-wire thermostats, Most digital thermostats
• For Use With: Boiler Control for Hydronic Zoning Systems
• Warranty: 2 Years
• Color: Black, Red
• Pump Valve Exercise: 30 Seconds per 2 Weeks of space heating inactivity
• ZR- ZC Terminals Contact Rating: 120 V AC to 240 V AC, 1/3 HP
• Product Depth: 3.38 in, 8.5 cm
• Product Height: 8 in, 20.3 cm
• Product Weight: 4.9 lb, 2.3 kg
• Product Width: 13 in, 33 cm
• UPC: 085267748919
• Country of Origin: CN
• Category: Switching Relays

Questions about fit or compatibility? Ask our team. We usually reply within one business day.