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Environmental & Combustion Controls
AQ2554P2X
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, 5A, 1/3 HP
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 kg
Weight (lb) 2.1 lbs
Tradeline Value Tradeline
Type of Zoning Devices Controlled Pump or 2-wire valve (line voltage)
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
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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