Dometic AH-Passport I/O Compact

Other manuals for Dometic AH-Passport I/O Compact

Questions and Answers

A
Anna LongAug 22, 2025
Why Dometic Marine Equipment system does not power up?
- M
  Ms. Kristen Hall DVMAug 22, 2025
  If your Dometic Marine Equipment system isn't powering up, there are several potential causes: * The air conditioning unit’s circuit breaker might be off. Turn it on at the ship’s panel. * The display might not be turned on. Ensure the display is on. * The terminal strip could be miswired. Check the wiring diagram and correct if necessary. * The input-line voltage may be insufficient. Check the power source for proper voltage and verify the wiring and terminals. Use a voltmeter to confirm the power at the unit matches the power source. * An electrical component might have failed. A technician should inspect the display, cable, and circuit board, looking for a red light on the circuit board.
R
Richard MartinezSep 6, 2025
How to troubleshoot a Dometic Control Unit that will not start?
- M
  Mary ByrdSep 7, 2025
  If your Dometic Control Unit system won't start, try the following: * Ensure the circuit breaker is turned on at the ship's panel. * Press the Power button. * Check the wiring diagram and correct it if necessary. * Verify that the input-line voltage is sufficient by checking the power source for proper voltage and inspecting wiring and terminals. Use a voltmeter to confirm the power at the unit matches the power source. * Inspect push-on connectors and butt splices for disconnections, correcting as needed after disconnecting the power supply and opening the electric box.
D
Dr. Shane MooreSep 5, 2025
What is the Dometic Marine Equipment filter reminder?
- W
  wrightaliciaSep 5, 2025
  The filter reminder on your Dometic Marine Equipment indicates that the timer setting to clean or replace the filter has been reached. Clean or replace the filter and reset the filter hours.
A
Austin BerrySep 4, 2025
Why Dometic Marine Equipment display does not show the correct room temperature?
- R
  rita91Sep 4, 2025
  If the display on your Dometic Marine Equipment isn't showing the correct room temperature, here are some potential causes: * The display might be showing a code for a faulty air sensor. Replace the air temperature sensor. * If the temperature displayed is too high (within 50 °F above the actual temperature), use calibration parameter 4 to adjust. * If the temperature displayed is too low (within 50 °F below the actual temperature), use calibration parameter 4 to adjust.
D
Dwayne GrimesSep 2, 2025
Why Dometic Marine Equipment fan coil is iced?
- J
  Jeffrey CarneySep 2, 2025
  If your Dometic Marine Equipment fan coil is iced, here are a couple of possible reasons: * The humidity level might be set too high. Close the hatches and doors. * The supply air could be short-cycling. Redirect the supply air so that is not blowing in or near the return-air stream. Seal any air leaks on the duct.
D
Dustin WilcoxSep 1, 2025
What to do if Dometic Marine Equipment air conditioning unit does not respond to display changes?
- H
  howestephanieSep 1, 2025
  If your Dometic Marine Equipment air conditioning unit isn't responding to changes entered on the display, consider these possibilities: * The display may be experiencing a power interruption, voltage frequency fluctuation, electromagnetic interference from other equipment, or similar power-related issue. Perform a factory reset of the display. * The display-cable plugs might not be making contact. With the power off at the circuit breaker, remove the connector and inspect it. * The display buttons may not function because the display is locked. Unlock the display.
E
erica44Aug 30, 2025
Why Dometic Marine Equipment condenser coil is iced in heat mode?
- R
  Rebecca JonesAug 30, 2025
  If the condenser coil in your Dometic Marine Equipment is iced while in heat mode, it could be because the seawater temperature is below 40 °F (4 °C). If this is the case, shut down the system to prevent damage to the condenser and allow the coil to defrost.
J
james63Aug 29, 2025
What to do if Dometic Marine Equipment pump does not shut off?
- D
  dgutierrezAug 29, 2025
  If the pump in your Dometic Marine Equipment system does not shut off, here are a couple of potential causes: * The circuit board might be shorted. Call service to verify if a relay on the circuit board is shorted or if the pump relay board is defective, if applicable. * The pump parameter on the display could be set for the pump to run continuously. Change the parameter on the display so the pump cycles with the compressor.
W
William TorresAug 27, 2025
Why is there a lack of airflow in Dometic Marine Equipment?
- S
  stephanie78Aug 28, 2025
  If you're experiencing a lack of airflow in your Dometic Marine Equipment, consider the following: * The airflow might be blocked or restricted. Remove any obstructions in the return-air stream. Clean the return-air filter and grille. Check for crushed or restricted ducting. * The fan speed might be set to manual low. If the fan speed is set to manual low, raise the speed to a higher setting or set to AUTOMATIC mode. Or, increase the minimum low speed in the program parameters. * The fan coil may be iced. See “The fan coil is iced” in this table.
J
Julie BrownAug 23, 2025
What to do if Dometic Marine Equipment unit does not cool?
- M
  martinstephenAug 23, 2025
  If your Dometic Marine Equipment unit is not cooling, consider these potential causes: * The display might be set to heat-only. Change the parameters on the display or press the Mode button to set COOL or AUTOMATIC mode. * The seawater temperature could be too high. Remember, this air conditioning unit can effectively cool your boat in water temperatures up to 90 °F (32 °C). * There might be a loss of refrigerant gas. Check the air conditioning unit for a refrigerant oil leak and call for service. * (For CW systems only) The chilled-water loop might be inadequately cooled, or the chiller system is not in the proper mode of operation. Be sure the chiller is in COOL mode.

Dometic AH-Passport I/O Compact Specifications

General

Operating Voltage	12/24 V DC
Operating Temperature	-20 °C to +60 °C
Digital Inputs	4
Analog Inputs	2
Protection Class	IP65
Input Voltage	12/24 V DC
Output Voltage	12/24 V DC
Communication Interface	CAN

Summary

Safety and Intended Use

Safety Information and Signal Words

Explains safety alerts, signal words, and directives for safe operation.

Intended Use of Passport Controls

Defines the purpose and application scope of the Passport I/O controls.

General Information and Display Features

Tools and Materials for Installation

Lists recommended tools and materials for installing the Passport controls.

Display Features Overview

Details the buttons and indicators on the Legacy Passport control display.

Product Specifications

Product Dimensions

Lists display panel and cut-out dimensions for Legacy and Compact models.

Cable Lengths

Details standard and maximum cable lengths for display and sensor cables.

System Specifications

Available System Inputs

Outlines available inputs for DX and CW systems, including optional sensors.

Operational Specifications

Lists operating ranges, accuracy, voltage limits, and power consumption.

Wiring Diagrams

DX Wiring Diagram

Illustrates the wiring connections for DX Passport control systems.

Installation and CW Wiring

CW Wiring Diagram

Illustrates the wiring connections for CW Passport control systems.

Installation Overview

Covers warnings and initial steps for installing the Passport controls.

Display Panel Location and Preparation

Guides on choosing a location and preparing the wall for the display.

Installation Details

Installing Optional Sensors

Steps for mounting and connecting optional sensors to the control board.

Mounting the Display Panel

Process for preparing the surface and attaching the display panel.

Operation Overview

Heating and Cooling Cycles

Explains how heating and cooling cycles operate based on system type.

Operation Details

Air and Water Temperature Differential

Discusses temperature differentials for CW systems and heating/cooling overlap.

Reversing-Valve and De-icing Cycles

Explains reversing valve operation and the de-icing cycle for DX systems.

Service Utility and Control Operation

Service Utility Commands (DX Systems)

Covers self-test, hour meter, and service history log for DX systems.

Turning On and Choosing Operation Modes

Guides on powering on and selecting system operating modes.

Operation Modes Explained

System Operating Modes

Details Cool, Heat, Dehumidification, Automatic, and Off modes.

Fan Speed Control

Explains manual and automatic fan speed settings and operation.

Display Panel Functions

Using the Passport Control Display Panel

Details button combinations for various functions like viewing set points and activating modes.

Advanced Display Panel Functions

Display Panel Function Combinations

Explains combinations for Dehumidification, sensor temp, self-test, and hour meter.

Programming the Passport Control

Entering Programming Mode

Step-by-step guide to access the programming menu on the Passport control.

Setting and Saving New Parameter Values

Instructions on how to adjust and save parameter settings as new defaults.

Parameter Management

Restoring Default and Exiting Programming

How to revert settings, exit programming mode, and understand parameter selection.

Parameter Selection and Details

Lists parameters, their ranges, and explains their functions.

Fault Codes and Calibration

Identifying Programming Fault Codes

Explains fault codes and how they trigger lockouts, referencing fail-safe levels.

Voltage Calibration

Guides on adjusting voltage reading for accurate low voltage calculations.

Navigation Tree

Navigation Tree Overview

Visual overview of the Passport control's menu flow and parameter structure.

Maintenance Tasks

Testing Passport Control Functionality

Procedure to test Passport control functionality after installation or service.

Return-Air Filter Check

Guide for inspecting, cleaning, and reinstalling the return-air filter.

Reversing Valve and Seawater Strainer Checks

Instructions for energizing valves and checking seawater strainers.

System Maintenance Procedures

Cleaning the Condenser Coil

Steps to clean the condenser coil to prevent marine growth fouling.

Winterizing the System

Method for winterizing the system to prevent freezing damage.

Troubleshooting Guide

Troubleshooting Common Issues

Table of common problems, causes, and recommended solutions for the system.

Disposal and Warranty

Product Disposal Guidance

Guidance on disposing of packaging materials and the product responsibly.

Warranty Information

Provides contact details and website for limited warranty information.

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128 pages

Dometic AH-Passport I/O Compact - User Manual

Table of Contents

Other manuals for Dometic AH-Passport I/O Compact

Questions and Answers

Dometic AH-Passport I/O Compact Specifications

Summary

Safety and Intended Use

Safety Information and Signal Words

Intended Use of Passport Controls

General Information and Display Features

Tools and Materials for Installation

Display Features Overview

Product Specifications

Product Dimensions

Cable Lengths

System Specifications

Available System Inputs

Operational Specifications

Wiring Diagrams

DX Wiring Diagram

Installation and CW Wiring

CW Wiring Diagram

Installation Overview

Display Panel Location and Preparation

Installation Details

Installing Optional Sensors

Mounting the Display Panel

Operation Overview

Heating and Cooling Cycles

Operation Details

Air and Water Temperature Differential

Reversing-Valve and De-icing Cycles

Service Utility and Control Operation

Service Utility Commands (DX Systems)

Turning On and Choosing Operation Modes

Operation Modes Explained

System Operating Modes

Fan Speed Control

Display Panel Functions

Using the Passport Control Display Panel

Advanced Display Panel Functions

Display Panel Function Combinations

Programming the Passport Control

Entering Programming Mode

Setting and Saving New Parameter Values

Parameter Management

Restoring Default and Exiting Programming

Parameter Selection and Details

Fault Codes and Calibration

Identifying Programming Fault Codes

Voltage Calibration

Navigation Tree

Navigation Tree Overview

Maintenance Tasks

Testing Passport Control Functionality

Return-Air Filter Check

Reversing Valve and Seawater Strainer Checks

System Maintenance Procedures

Cleaning the Condenser Coil

Winterizing the System

Troubleshooting Guide

Troubleshooting Common Issues

Disposal and Warranty

Product Disposal Guidance

Warranty Information

Related product manuals