Honeywell AQ25400B/U Aquatrol® Add-A-Temperature expansion control panel for hydronic zoning systems
Description
Honeywell AQ254 add-a-temperature expansion control panel is used in conjuction with AQ250, AQ25A, AQ251 or AQ252 control panels to provide one additional loop temperature control capability for up to 16 zones, when used with AQ255/AQ257 panels.
Features
- Add-on control panel to the main (AQ250, AQ25A, AQ251, AQ252) control panel
- Each of the 16 zones connected to it are assigned to the system’s primary or secondary loop
- Up to 3 AQ254 panels can be added to the main control panel
- Controlled mixed loop temperature by a variable speed injection pump or motorized mixing valve connected to the AQ254
- Intuitive and accessible programming interface and central program of zone set points and setback
- Customizable mixing control settings provide greater control and comfort
- Features zone synchronization through Zone of Greatest Demand control
Product Specifications
- 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 varia
- 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 (lb)
- 3.9 lbs
- Weight (kg)
- 1.8 kg
- Approvals, Canadian Standards Association
- CSA C/US Certified to CSA and UL Standards, File No. LR76030
- Tradeline Value
- Tradeline
- Thermostat Compatibility
- AQ1000 Series 2-wire communicating thermostats and most digital thermostats
- User Interface
- LCD Display and a 3 button Key Pad
- R-C Output (on transformer)
- 38 VA, 24 Vac Class II
- 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.
- Output Ratings
- Auxiliary Pump– Dry contact output, 120 Vac/250 Vac 5A, 1/3 HP
- Mixing Valve Floating Output (Com,O,C)
- 24 Vac rated dry contacts
- Secondary Pump Output Rating
- 120 Vac 5A, 1/3HP
- Variable Speed Injection Pump Output
- Triac modulated; 120 Vac, 2.1A, 1/6HP
- Electrical Connections
- Wire-clamp screw terminals, Maximum 2 x 14 AWG each on line voltage terminals
- Operating Humidity Range (% RH)
- 5 to 90% RH, non-condensing
- Secondary Loop Temperature Range (F)
- Mixing (Supply) max control–80 F to 210 F; Mixing (Supply) min control–35 F to 150 F; Mixing (Supply) Design Temperature–70 F to 210 F; Return min control–80 F to 180 F
- Secondary Loop Temperature Range (C)
- Mixing (Supply) max control–27 C to 99 C; Mixing (Supply) min control–2 C to 66 C; Mixing (Supply) Design Temperature–21 C to 99 C; Return min control–27 C to 82 C
- Replacement Parts
- AQ10X38 24 Vac 38 VA transformer,AQ12C11 supply/return/mixed loop sensor,AQ15400B Add-A-Temperature expansion control module
- Temperature Ratings (C)
- Panel–0 C to 55 C; Sensor– -50 C to +110 C
- Temperature Ratings (F)
- Panel–32 F to 130 F; Sensor– -58 F to +230 F
- Supply Voltage
- 120V 60 Hz
