Honeywell AQ254 Catalog Page
AQUATROL Zoning System
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Type of Zoning |
Number of Zones |
Boiler Pump |
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Product Number |
Devices Controlled |
Controlled |
Output Rating |
Replacement Parts |
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AQ25242B/U |
Zone pumps or 2-wire |
4 |
120 Vac/250 Vac 5A, |
AQ15200B universal injection/mixing boiler reset module; |
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valves (line voltage) |
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1/3HP |
AQ12C11 supply/return/mixed loop sensor; |
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AQ12C10 outdoor sensor; AQ10X38 24 Vac 38 VA transformer; |
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AQ15540B 4-zone pump expansion module |
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AQ25244B/U |
Zone valves with end |
4 |
120 Vac/250 Vac 5A, |
AQ15200B universal injection/mixing boiler reset module; |
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switches |
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1/3HP |
AQ15740B 4-zone valve with end switch expansion module; |
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AQ12C11 supply/return/mixed loop sensor; AQ12C10 outdoor sensor; |
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AQ10X38 24 Vac 38 VA transformer |
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* TRADELINE models • SUPER TRADELINE models |
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AQ254 Add-a-Temperature Injection/Mixing Expansion Control Panel for Hydronic Zoning System
expands the total network capacity by up to 16 zones when used with AQ255 and/or AQ257 zoning panels.
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• Acts as an add-on Control panel to the Main (AQ250, AQ25A, |
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AQ251, AQ252) Control panel. |
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• Allows each of the 16 zones connected to it to be assigned to the |
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system's primary or secondary loop. |
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• Up to 3 AQ254 panels can be added to a Main (AQ250, AQ25A, |
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AQ251 or AQ252) Control panel. |
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• Mixed loop temperature is controlled by a variable speed injection |
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pump or motorized mixing valve connected to the AQ254. |
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• Intuitive programming interface and armchair programming (can be |
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programmed at your desk and taken to the job site “ready-to-install”) |
The AQ254 Add-a-Temperature Expansion Control Panel is used in |
• Customizable mixing control settings allow for greater level of control |
and comfort. |
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conjunction with an AQ250, AQ25A, AQ251 or AQ252 Control |
• Zone synchronization through Zone of Greatest Demand control. |
Panel. It provides one additional loop temperature control |
• Integral 38 VA transformer with self resetting electronic fuse. |
capability for the AQ2000 control panel it is connected to and |
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Application: Expanded zone control and mixed loop temperature control in a hydronic zoning system
Mixed loop target temperature is reset by either outdoor temperature or calculated system load based on indoor temperature feedback Mixing is target controlled by a variable speed injection pump or motorized mixing valve
Dimensions, Approximate: 9 1/2 in wide x 8 in. high x 3 3/8 in. deep (24 cm wide x 20.3 cm high x 8.5 cm deep)
Power Supply: 120V/60Hz
User Interface (Setting, Programming): (LCD Display and a 3 button Key Pad)
Electrical Connections (Line Voltage): Wire-clamp screw terminals, Maximum 2 x 14 AWG each on line voltage terminals
Control and Zoning Panel Temperature Rating: 32 F to 130 F (0 C to 55 C)
Thermostat Compatibility: AQ1000 Series 2-wire communicating thermostats and most digital thermostats
Variable Speed Injection Pump Output: Triac modulated; 120 Vac, 2.1A, 1/6HP
Secondary Pump Output Rating: 120 Vac 5A, 1/3HP
Auxiliary Pump Output Rating: Dry contact output, 120 Vac/250 Vac 5A, 1/3 HP
Sensor Temperature Rating: -58 F to +230 F (-50 C to +110 C) Secondary Loop Mixing (Supply) Design Temp Range: 70 F to 210
F (21 C to 99 C)
Secondary Loop Mixing (Supply) Max Control Temp Range: 80 F to 210 F (27 C to 99 C)
Secondary Loop Return Min Control Temp Range: 80 F to 180 F (27 C to 82 C)
Secondary Loop Mixing (Supply) Min Control Temp Range: 35 F to 150 F (2 C to 66 C)
B-B Communication Bus Terminals: Low voltage, Class II, 2-wire polarity-insensitive, digital communicating link to other Control or Zoning modules.
R-C Input (on Control and Zoning Modules): 24 Vac Class II (input on Control and Zoning Modules)
R-C Output (on transformer): 38 VA, 24 Vac Class II
Operating Humidity Range (% RH): 5 to 90% RH, non-condensing
Weight: 3.9 lbs (1.8 kg)
Approvals
Canadian Standards Association: CSA C/US Certified to CSA and UL Standards, File No. LR76030
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Product Number |
Mixing Valve Floating Output (Com,O,C) |
Replacement Parts |
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AQ25400B |
24Vac rated dry contacts |
AQ15400B Add-A-Temperature expansion control module; |
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AQ12C11 supply/return/mixed loop sensor; |
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AQ10X38 24 Vac 38 VA transformer |
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* TRADELINE models • SUPER TRADELINE models |
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<![endif]>Hydronic
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