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Honeywell AQ255 Series Product Data

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AQ255 and AQ257 Series
Expansion Zoning Panels
PRODUCT DESCRIPTION
The AQ255/AQ257 Series Expansion Zoning Panels provide
additional zoning capacity for an existing hydronic installation
controlled by an AQ2000 Series Boiler Control Panel such as
an AQ250 Relay Boiler Control, an AQ251 Reset Boiler
Control, or an AQ252 Universal Injection/Mixing Boiler Reset
Control.
AQ25742B
AQ25582B
FEATURES
The AQ255/AQ257 Series Expansion Zoning Panels have the
following features:
• Availability of 4 Expansion Zoning Panels.
• Zone control of either pumps or zone valves, in
multiples of 4 zones
• 4-zone or 8-zone models for pump zoning; 4-zone
models for zone valves
• Ability to use both zone valve models and zone pump
models in the same installation
• Zone valve panels contain an AQ10X38 transformer
(power supply module), which connects to 120 Vac
power and supplies 24 Vac power to the Zoning
Module.
• Communications between components via the
AQUATROL® network, using communication bus
wiring.
• Any panel can be configured to activate a group pump
when zones are active
• Zone valve models can be used with Normally Open or
Normally closed valves
• Can be installed up to 500 ft. away from main AQ2000
Control Panel, for convenient operation of remote
zoning equipment
IMPORTANT
To ensure correct installation and proper operation of
the zoning panel, perform the 7 installation steps in
the order numbered in the "Contents" below.
Specifications ...................................................................
1 Installation Preparation ..................................................
2 Mounting ........................................................................
3 Wiring Procedure ...........................................................
5 Test and Check Out the Installation ...............................
Troubleshooting ................................................................ 10
Appendix .......................................................................... 11
Wiring Diagrams ................................................... 11
PRODUCT DATA
Contents
2
2
4
5
5
7
8
9
69-1981-06

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  Summary of Contents for Honeywell AQ255 Series

  • Page 1: Table Of Contents

    AQ255 and AQ257 Series Expansion Zoning Panels PRODUCT DATA FEATURES AQ25742B The AQ255/AQ257 Series Expansion Zoning Panels have the following features: • Availability of 4 Expansion Zoning Panels. • Zone control of either pumps or zone valves, in multiples of 4 zones •...
  • Page 2: Specifications

    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 Environmental and Combustion Controls Sales Office (check white pages of your phone directory). 2. Honeywell Customer Care...
  • Page 3 AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS When Installing this Product… Read All Instructions Carefully Before Proceeding 1. Read these instructions carefully. Failure to follow them could damage the product or cause a The AQ2000 Series Control Panels are a part of a totally new hazardous condition.
  • Page 4: Mounting

    AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS TRANSFORMER ZONING MODULE VOLTAGE (24 V) LOW VOLTAGE (24 V) Zone 1 Zone 2 Zone 3 Zone 4 LINE VOLTAGE (120 V) LOW VOLTAGE (24 V) M27832A Fig. 2. AQ257 Expansion Zoning Panel Layout (AQ25744B shown). 2 MOUNTING 3.
  • Page 5: Wiring Procedure

    AQ25742B’s document. For additional information, refer to transformer module (AQ10X38). http://customer.honeywell.com or your local d. AQ25744B: run 14 AWG jumper wires from the N distributor. and L terminals on the bottom of the AQ2000 Series Control Panel’s AQ10X38 transformer to the N and L...
  • Page 6 Although for many installations, these factory default DIP a. For the first Zoning Module connected to an AQ2000 switch settings will be suitable, Honeywell recommends that Series Control Module (this first Zoning Module is they be reviewed and changed, as necessary, to get optimal...
  • Page 7: Test And Check Out The Installation

    AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS Table 2. AQ15540B Zoning Module (Pump Zoning Module) DIP Switch Arrangement. Switch Switch Description Label and Factory Settings Zone Address: The positions of these 4 DIP switches define the unique address for each zone on the AQUATROL network. For each group of 4 zones, there can be only AQ15540B one DIP switch in the right hand (ON) position.
  • Page 8: Purge Air From All System And Zone Piping

    AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS STATUS LEDS If zones are tested simultaneously (TEST: ALL ZONES), zone Every status LED light (Zone 1, Zone 2, Zone 3, Zone 4) will be pumps energize immediately (with a delay of 1/10th of a turned on for 15 seconds when its corresponding output is second delay between each pump to minimize the effect of activated during Auto Test.
  • Page 9: Document And Keep Arecord Of All System Settings

    AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS SAVE Feature (AQ25A, AQ251, and loop does not need to be purged, or there is not a pump connected to the AUX relay, press the TEST button again AQ252 Control Panels) to advance to the next step in the test sequence. 6.
  • Page 10: Troubleshooting

    AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS TROUBLESHOOTING Zoning Module Reaction When a Zoning Module loses communication with the Control The following information helps the installer correctly identify Module (as long as there is at least one other Zoning Module system problems, making troubleshooting much faster.
  • Page 11: Appendix

    AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS APPENDIX This appendix provides examples for wiring Expansion Zoning Panels to AQ2000 Series Control Panels and wiring additional low voltage VA capacity. Wiring Diagrams Fig. 5. Wiring of AQ25542B Expansion Zoning Panel to AQ2000 Series Control Panel. 69-1981—06...
  • Page 12 AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS ZONING MODULE OF AN EXISTING AQ25582B AQ2000 SERIES CONTROL PANEL FROM “C” ON AQ10X38 FROM “R” TRANSFORMER ON AQ10X38 FROM B-B TRANSFORMER “EXP .BUS OUT” TO B-B CONNECTION “EXP .BUS IN” ON AQ1554P2 (#1) CONNECTION ON AQ15540B (#2) THERMOSTATS...
  • Page 13 If power is applied to these 4 motorized zone valves (such as Honeywell contacts (for example, by running line voltage through V8043E valves or 4 valves using low-amperage the zone valves’...
  • Page 14 POWER SUPPL Y. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M27836C Fig. 9. Wiring of AQ25744B Expansion Zoning Panel to AQ2000 Series Control Panel. AQUATROL® is a registered trademark of Honeywell International Inc. Aquastat® is a registered trademark of Honeywell International Inc. 69-1981—06...
  • Page 15 AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS 69-1981—06...
  • Page 16 AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North ® U.S. Registered Trademark Golden Valley, MN 55422 © 2013 Honeywell International Inc. 69-1981—06 M.S. Rev. 08-13 customer.honeywell.com Printed in United States...