Specifications - Honeywell AQ25A Series Technical Reference Booklet

AQ25A SERIES PROGRAMMABLE BOILER CONTROL PANELS

SPECIFICATIONS

The AQ25A Programmable Boiler Control Panels and
corresponding attached equipment are listed in Table 1.
Table 1. AQ25A Series Control Panel Models.
Corresponding
Control Panel Control Module
AQ25A42B AQ15A10B
AQ25A44B AQ15A10B
Application: Controls zoning operations, and provide boiler
and DHW management for hydronic zoning systems.
Power and Electrical Ratings:
Power Supply: 120 Vac / 60Hz
Auxiliary Pump Output Rating: Dry contact output,
120 to 240 Vac, 5A, 1/3 HP
Auxiliary Low Voltage Output Rating: 24 Vac, 0.5A,
12VA
Boiler (T-T) Output Rating: 24 Vac, 0.5A, 12VA
Boiler Pump (C1-C2) Output Rating: 120 Vac 5A, 1/3HP
DHW Pump/Valve Output Rating: 120 Vac 5A, 1/3HP
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
Temperature Ratings:
Boiler Differential: 2° to 41° F (1° to 23° C), or AUTO
Boiler (Supply) Minimum Control Temperature:
OFF, 59° to 180° F (OFF, 15° to 82° C)
Boiler (Supply) Maximum Control Temperature: OFF,
120°F to 225°F (OFF, 49°C to 107°C)
Return Minimum Control Temperature: OFF, 80°F to
180°F (OFF, 27°C to 82°C)
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.
69-2119—02
Corresponding
Zoning Module
AQ15540B
Inputs/Outputs:
AQ15740B
Interface and Timings:
Thermostat Compatibility: Digital thermostats and/or
AQ1000 Series 2-wire communicating thermostats
Supply/Return 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.
Outdoor Sensor: 10K ohm NTC thermistor at 77°F (25°C) ±
0.5°F (±0.3°C). Lead Length: 15 ft. (4.6 m); up to 500 ft.
(150 m) using 18 AWG or larger wire, beta=3892
2
Sensor Temperature Rating: -58°F to 230°F (-50°C to
110°C)
Sensor Temperature Rating: -58°F to 230°F (-50°C to
110°C)
Warm Weather Shut Down (WWSD) Temperature:
OFF, 35°F to 100°F (OFF, 1°C to 38°C)
Cold Weather Shut Down (CWSD) Temperature: OFF,
32°F to 100°F (OFF, 0°C to 38°C)
Auxiliary (Demand) Input: External dry contacts
connection only
DHW Demand Input: External dry contacts connection
only
Heat Demand (Thermostat R-W) Input: External dry
contacts connection only
Heat Demand Input External dry contacts connection
only
Modulating Output: 0-10 or 2-10 Vdc for modulating
boiler
R–C Input (on Control and Zoning Modules): 24 Vac
Class II
R–C Output (on transformer): 38 VA, 24 Vac Class II
User Interface (Setting, Programming): LCD Display
and a 7-button keypad
Setback Program: 7 day, up to 2 setback periods/day.
DHW Valve Open: 0-230 seconds, before boiler loop
pump is energized.
DHW Purge: Yes/No; selects whether purge is applied
after a DHW demand is served
Boiler Heat Post Purge: Off, 10 seconds to 30 minutes
(factory default is 30 seconds)
Pump/Valve exercise: 30 seconds per 2 weeks of space
heating inactivity