Specifications - Honeywell AQ25A Series Technical Reference Booklet

AQ25400B "ADD-A-TEMPERATURE" EXPANSION CONTROL PANEL
• Extends the capacity of an existing AQ2000 hydronic
control panel by up to 16 zones and one reset mixed
temperature loop.
• Intuitive programming interface (can be programmed
at your shop and taken to the job site "ready-to-
install").
• Integral 38 VA transformer with self resetting
electronic fuse.
• Equipment settings are stored in a non-volatile
EPROM memory so the AQ254 retains all program
settings during a power outage.

SPECIFICATIONS

Application: Provides additional zoning capacity for an exist-
ing hydronic installation controlled by an AQ2000 Series
Boiler Control Panel.
Power and Electrical Ratings:
Power Supply: 120 Vac / 60Hz
Auxiliary Pump Output Rating: Dry contact output,
120 to 240 Vac 5A, 1/3 HP
Secondary Pump Output Rating: 120 Vac 5A, 1/3HP
Variable-Speed Injection Pump Output: Triac
modulated; 120 Vac 2.1A, 1/6HP
B–B Communication Bus Terminals: Low voltage,
Class II, 2-wire polarity-insensitive, digital
communicating link to other Control or Zoning modules.
Electrical Connections (Line Voltage): Wire-clamp
screw terminals; maximum 2 x 14 AWG each on line
voltage terminals
Environmental Ratings:
Control and Zoning Panel Temperature Rating: 32°F to
130°F (0°C to 55°C)
Operating Humidity Range (% RH): 5 to 90% RH, non-
condensing
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
69-1987—02
Temperature Ratings:
Secondary Loop Mixing (Supply) Design Temp
Range: 70°F to 210°F (21°C to 99°C)
Secondary Loop Mixing (Supply) Min. Control Temp
Range: OFF, 35°F to 150°F (OFF, 2°C to 66°C)
Secondary Loop Mixing (Supply) Max. Control Temp
Range: OFF, 80°F to 210°F (OFF, 27°C to 99°C)
Sensor Temperature Rating: -58°F to 230°F (-50°C to
110°C)
Inputs/Outputs:
Auxiliary (Demand) Input: External dry contacts
connection only
DHW Demand Input: External dry contacts connection
only
Secondary Sensor Input: External dry contacts
connection only
Mixing Valve (Com, O, C) Output: 24 Vac, 0.5A, 12VA
Modulating Output: 0-10 or 2-10 Vdc for variable speed
pump or modulating mixing valve
User Interface (Setting, Programming): 8-character, 3-line
LCD Display with a 3 button keypad
Thermostat Compatibility: Digital non-communicating
thermostats and/or AQ1000 Series 2-wire communicating
thermostats
Secondary (Mixed) Loop Sensor: 10K ohm NTC thermistor
at 77°F (25°C) ± 0.5°F (±0.3°C). Lead length: 10 ft. (3.0 m);
up to 500 ft. (150 m) using 18 AWG or larger wire,
beta=3892
Dimensions (HxWxD): 8.0 x 9.4 x 3.3 in. (20.3 x 23.8 x 8.5
cm) approximate
Weight: 3.9 lb. (1.8 kg)
Approvals: Canadian Standards Association: Certified, File
No. LR76030
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