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Environmental & Combustion Controls
AQ2554V2
Aquatrol Zoning Panel

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Overview
The AQ255 and AQ257 family of AQUATROL Expansion Zoning panels work with AQ2000 Boiler Control Panels and AQ1000 Communicating Thermostats to control up to 4 space heating zones (or 8, for the AQ2558P2X Panel). Can be combined with additional expansion zoning panels and an AQ2000 control panel for a total of 16 space heating zones.

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Features

• AQ255 for zoning with pumps or zone valves without end switches.
• Allows zone synchronization through Zone of Greatest Demand control.
• Auto test function to test zones at system start up. It allows for operator controlled testing of zones; includes pause/restart capability.
• LED lights for easy diagnostic of zone operation.
• Allows zoning with either "Normally Open" or "Normally Closed" zone valves.
• Adjacent zoning panels can operate different zone equipment - one panel may control 4 pumps while another may control 4 zone valves.
• Easily switch from zone valves to pumps with same zoning module - just flip one DIP switch. Ensure correct voltage is applied (120 Vac for pumps, 24 Vac for valves)
• R-C transformer and B-B data bus terminal connections and network communication for easy expansion.
• Zones can be set to energize a parallel group pump via Aux Out dry contacts on main control panel (AQ250, AQ25A, AQ251, AQ252) or expansion control panel (AQ254).
• 38 VA Transformer with self resetting electronic fuse.
Product Specifications  Back To Top
Application Zoning control for hydronic zoning system
Thermostat Compatibility AQ1000 Series 2-wire communicating thermostats
User Interface (Setting, Programming) DIP Switches
Number of Communicating Zones Controlled 4
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
Control and Zoning Panel Temperature Rating (F) 32 F to 130 F
Control and Zoning Panel Temperature Rating (C) 0 C to 55 C
Operating Humidity Range (% RH) 5 to 90% RH, non-condensing
Dimensions (in.) 9 1/2 in wide x 8 in. high x 3 3/8 in. deep
Dimensions (mm) 24 cm wide x 20.3 cm high x 8.5 cm deep
Weight (kg) 1.8 kg
Weight (lb) 3.9 lbs
Tradeline Value Tradeline
Type of Zoning Devices Controlled 2-wire valve (24 Vac)
Electrical Connections (Line Voltage) Wire-clamp screw terminals, Maximum 2 x 14 AWG each on line voltage terminals
Replacement Parts AQ1554P2 4-zone pump expansion module
Replacement Parts AQ10X38 24 Vac 38 VA transformer
Approvals, Canadian Standards Association Certified
Approvals, Underwriters Laboratories Inc File No. LR76030

Literature and other Resources Download Back To Top
CD ROM - (AQ2000, AQ2504B2, AQ2504B4, AQ2511B0, AQ2514B2, AQ2514B4, AQ2554P2X, AQ2554V2, AQ2558P2X, AQ2574V4 AQ2000 Product Selection Tool CD)
Installation Job Record - (AQ2554P2X Expansion Zoning Panel for 4 Pumps)
Installation Job Record - (AQ2554V2 Expansion Zoning Panel for 4 Valves)
Installation Job Record - (AQ2558P2X Expansion Zoning Panel for 8 Pumps)
Quick Installation Guide - (AQ255, AQ257 AQ2000 Series Expansion Zoning Panels)
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