Honeywell AQ257 expansion zoning panels work with AQ2000 boiler control panels and AQ1000 communication thermostats to control up to four space heating zones. Combine with extra expansion panels and AQ2000 panel for 16 space heating zones.

Features & Benefits

• AQ257 for Zoning with Zone Valves with End Switch
• LED Light for Visual Diagnostic of Zone Operation
• Adjacent Zoning Panel can Operate Different Zone Equipment
• Easily Switch from Zone Valve to Pump with Same Zoning Module
• R-C Transformer and B-B Data Bus Terminal Connection for Easy Expansion
• Zones can be Set to Energize a Group Pump Via Aux Out Dry Contacts on Main Control Panel or Expansion Control Panel
• Zone Synchronization Through Zone of Greatest Demand Control

Specifications

• Actuation Type: Electronic
• Switch Type: DIP
• Overall Dimensions: 9-1/2 Inch Width x 3-3/8 Inch Depth x 8 Inch Height
• Input Supply Rating: 120 Volt AC 60 Hertz
• Temperature Rating: 32 to 130 Deg F
• Media Handled: Hot Water
• Inclusions/Features: Auto Test Function to Test Zones at System Start-Up, LED
• Application: Residential, Hydronic Zoning System
• Applicable Standard: UL, CSA (Canada and US)
• Zoning Device Controlled Type 2-Wire Valve
• Number of Zones 4
• Contact Rating 1/3 HP 120/250 Volt AC 5 Amp
• Electrical Connection (2) 14 AWG Wire Clamp Screw Terminal
• Operating Humidity Rating 5 to 90 Percent RH (Non-Condensing)