Dometic AH-Passport I/O Compact Operation Manual
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Dometic AH-Passport I/O Compact Operation Manual

For use with chilled water air conditioning systems
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AH-Passport I/O (for CW systems)
O
M
PERATIONS
ANUAL
AH-Passport I/O Compact
AH-Passport I/O (legacy model)
Dometic Marine
Rev. 20090710
L-2232 English
COPYRIGHT © 2007-2009 Dometic Marine. All Rights Reserved.
No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means
electronic, mechanical, photocopying, recording or otherwise without prior written consent by Dometic Marine. Every precaution has
been taken in the preparation of this manual to ensure its accuracy. However, Dometic Marine assumes no responsibility for errors
and omission. Neither is any liability assumed for damages resulting from the use of this product and information contained herein.

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Summary of Contents for Dometic AH-Passport I/O Compact

  • Page 1 Dometic Marine. Every precaution has been taken in the preparation of this manual to ensure its accuracy. However, Dometic Marine assumes no responsibility for errors and omission. Neither is any liability assumed for damages resulting from the use of this product and information contained herein.

  • Page 2: Table Of Contents

    Table of Contents INTRODUCTION ....... 1 ......8 ROGRAMMING Programming procedure .

  • Page 3: Introduction

    ROCEEDING Read this manual completely before you proceed with the installation and operation of the AH-Passport I/O. If you have questions or require assistance with your AH-Passport I/O, call your dealer or the Dometic Marine Service Department at +1 954-973-2477.

  • Page 4: Description Of Control

    Description of Control AH-Passport I/O Control Operations Manual ESCRIPTION OF ONTROL See Figure 1 and Table 1 on page 3 to identify all parts of the control. OWER Press the Power button once to engage the system. The display is blank when the system is off and indicates current room temperature when the system is on.
  • Page 5 AH-Passport I/O Control Operations Manual Description of Control Figure 1: AH-Passport I/O Display Panel and Indicators Compact model Legacy model Table 1: AH-Passport I/O Display - Diagram Legend Cool Mode indicator Temperature sensor Fan indicator Down button - Lower temperature set point Heat Mode indicator Fan button Digital display...

  • Page 6: Important Programming Notes T O Installer And End User

    Important Programming Notes To Installer and End User AH-Passport I/O Control Operations Manual MPORTANT ROGRAMMING OTES NSTALLER AND If your air handler has a Shaded-Pole (SP) fan motor instead of a Split-Capacitor (SC) High-Velocity (HV) fan motor, you MUST program “SP” into parameter P-16 before operating the equipment. The SP units are recognizable by an overhanging blower motor.

  • Page 7: Mounting The Optional Sensors

    AH-Passport I/O Control Operations Manual Mounting the Optional Sensors Clean the mounting surface with isopropyl alcohol only (test alcohol on hidden portion of surface first), then secure the display panel to a bulkhead with the adhesive strips provided. If the adhesive strips cannot be used directly on the bulkhead, use the plastic bulkhead adapter.

  • Page 8: Button Functions - Dual

    Modes of Operation AH-Passport I/O Control Operations Manual UTTON UNCTIONS • Up & Down buttons (On Mode) - Simultaneously press the Up and Down buttons while in the On Mode to display the chilled water temperature. • Up & Down buttons (Off Mode) - Simultaneously press the Up and Down buttons while in the Off Mode to display outside air temperature (if the optional outside air temperature sensor is installed).

  • Page 9: Program Mode

    Off Mode. NOTE If you have any reason to contact Dometic about the system or programming the control, you must have the software identification number and air conditioning unit serial number available. The serial number may be found on the dataplate label.

  • Page 10: Programming

    Programming AH-Passport I/O Control Operations Manual ROGRAMMING ROGRAMMING PROCEDURE Enter Program Mode. (See “Entering Program Mode” above for details.) Press and release the Fan button to increment from one program parameter to the next. Use the Up and Down buttons to change the parameter’s setting. Press the Power button to exit Program Mode and return the control to Off Mode.
  • Page 11 The parameter entered represents that number times 10 hours. Select the number of operating hours until the filter reminder appears. Parameter choices are between 10 (100 hours) and 250 (2500 hours). Dometic recommends that you check the air filter at least every 500 hours of operation. The default setting is off, designated with “00”.
  • Page 12 Programming AH-Passport I/O Control Operations Manual Table 2: Programmable Parameters - Ranges and Factory Defaults Parameter Factory Custom Number Description Default Default Parameter Range Operating Mode 0 = Auto 1 = Cool Only 2 = Heat Only High Fan-Speed Limit 65 - 95 Low Fan-Speed Limit 30 - 64...

  • Page 13: Fault-Handling Codes

    AH-Passport I/O Control Operations Manual Fault-Handling Codes AULT ANDLING ODES One of the following fault codes displays when a fault is detected: • ASF – Indicates air sensor failure. • FIL – Indicates filter needs to be cleaned or replaced. &...

  • Page 14: Troubleshooting

    General Troubleshooting AH-Passport I/O Control Operations Manual TROUBLESHOOTING ENERAL ROUBLESHOOTING See additional troubleshooting information in the manual for your specific chiller system. Table 3: General Troubleshooting PROBLEM POSSIBLE REASON/SOLUTION System will not start. 1. Air handler circuit breaker is off. Turn circuit breaker on at ship’s panel. 2.

  • Page 15: Digital-Controls Troubleshooting

    AH-Passport I/O Control Operations Manual Digital-Controls Troubleshooting IGITAL ONTROLS ROUBLESHOOTING See also “General Troubleshooting” on page 12. Table 4: Digital-Controls Troubleshooting PROBLEM POSSIBLE REASON/SOLUTION Digital display panel is not The 8-pin display-cable plugs are not making contact (unplugged, dirty, bent, or lit.

  • Page 16: Specifications

    Outside-Air Temperature Sensor (optional) ..........1 WARRANTY AGREEMENT This control may be covered under Dometic’s Unit Warranty or Dometic’s Part Warranty. Please refer to the specific warranty data sheet for more information.

  • Page 17: Diagrams

    AH-Passport I/O Control Operations Manual Sample Application DIAGRAMS AMPLE PPLICATION Figure 3: System Layout Example Table 5: System Layout Example - Diagram Legend Electrical Box Water Inlet Sensor Optional Outside Air Sensor Control Display Panel AC Wire Harness 8-Conductor Shielded Display Cable 6-Conductor Shielded Sensor Cable Return-Air Grille Convector Assembly...

  • Page 18: Sample Wiring Diagram

    Sample Wiring Diagram AH-Passport I/O Control Operations Manual AMPLE IRING IAGRAM IMPORTANT This is a sample diagram. Wire colors may vary. See unit’s specific diagram located in electrical box. Turn power off before opening electrical box. Figure 4: Sample Digital Control Wiring Diagram L-2232 ENGLISH...
  • Page 19 AH-Passport I/O Control Operations Manual Sample Wiring Diagram L-2232 ENGLISH...
  • Page 20 Dometic Marine Rev. 20090710 L-2232 English www.dometicusa.com...

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