Passport I/O Control (for DX systems)
OPERATIONS MANUAL
Passport I/O Compact
Passport I/O (legacy model)
Dometic Marine
Rev. 20090220
L-2231 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.
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
READ THIS MANUAL BEFORE PROCEEDING . . . . . . . . . 1
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION OF CONTROL . . . . . . . . . . . . . . . . . . . . 1
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT PROGRAMMING NOTES TO INSTALLER AND
END USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NORMAL HEATING OR COOLING CYCLE . . . . . . . . . . . . 3
REVERSING-VALVE OPERATION . . . . . . . . . . . . . . . . . 3
INSTALLING THE DISPLAY PANEL . . . . . . . . . . . . . . . 4
CHOOSING THE LOCATION . . . . . . . . . . . . . . . . . . . . . 4
MOUNTING THE DISPLAY . . . . . . . . . . . . . . . . . . . . . . 4
MOUNTING THE OPTIONAL SENSORS . . . . . . . . . . . . . 4
Remote Air Sensor . . . . . . . . . . . . . . . . . . . . . . 4
Outside-Air Temperature Sensor . . . . . . . . . . . 4
Service Sensor . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATOR CONTROLS AND DISPLAY PANEL . . . . . . . . 5
Display Indicators . . . . . . . . . . . . . . . . . . . . . . . 5
Button Functions - Single . . . . . . . . . . . . . . . . . 5
Button Functions - Dual . . . . . . . . . . . . . . . . . . 5
Special Button Functions . . . . . . . . . . . . . . . . . 5
MODES OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . 6
Off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
On Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Automatic Mode . . . . . . . . . . . . . . . . . . . . . . . . 6
Cool Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Heat Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Moisture Mode . . . . . . . . . . . . . . . . . . . . . . . . . 6
Fan Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Program Mode . . . . . . . . . . . . . . . . . . . . . . . . . 6
USING PROGRAM MODE . . . . . . . . . . . . . . . . . . . . . . . 7
Entering Program Mode . . . . . . . . . . . . . . . . . . 7
Exiting Program Mode . . . . . . . . . . . . . . . . . . . 7
Changing Parameters . . . . . . . . . . . . . . . . . . . . 7
Memorizing New Program Parameters . . . . . . . 7
Restoring Memorized Default Settings . . . . . . . 7
Software Identification . . . . . . . . . . . . . . . . . . . 7
PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Programming procedure . . . . . . . . . . . . . . . . . . 7
Programmable Parameters . . . . . . . . . . . . . . . . 7
FAILSAFE AND FAULT-HANDLING CODES . . . . . . . . . . 12
Failsafe Level 0 . . . . . . . . . . . . . . . . . . . . . . . . 12
Failsafe Level 1 . . . . . . . . . . . . . . . . . . . . . . . . 12
Failsafe Level 2 . . . . . . . . . . . . . . . . . . . . . . . . 12
Failsafe Level 3 . . . . . . . . . . . . . . . . . . . . . . . . 12
QUICK-START OPERATIONS CHECKLIST . . . . . . . . . . . 12
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 13
GENERAL TROUBLESHOOTING . . . . . . . . . . . . . . . . . . 13
DIGITAL-CONTROLS TROUBLESHOOTING . . . . . . . . . . 14
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SYSTEM COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . 16
Reversing Valve . . . . . . . . . . . . . . . . . . . . . . . 16
Seawater Strainer . . . . . . . . . . . . . . . . . . . . . . 16
Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . 16
Return-Air Filter . . . . . . . . . . . . . . . . . . . . . . . . 16
Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . 16
AUTOMATED FACTORY SELF-TEST PROGRAM . . . . . . 17
SERVICE UTILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Hour Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Service History Log . . . . . . . . . . . . . . . . . . . . . 17
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
OPERATIONAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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CABLE LENGTHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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SYSTEM INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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WARRANTY AGREEMENT . . . . . . . . . . . . . . . . . . . . . |
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LISTS OF FIGURES & TABLES . . . . . . . . . . . . . . . . . . |
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LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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SAMPLE WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . 20
L-2231 ENGLISH
Passport I/O Control Operations Manual |
Read This Manual Before Proceeding |
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INTRODUCTION
The Passport I/O is a microcontroller-based unit designed for use with direct expansion, reverse-cycle air conditioning systems.
READ THIS MANUAL BEFORE PROCEEDING
Read this manual completely before you proceed with the installation and operation of the Passport I/O. If you have questions or require assistance with your Passport I/O, call your dealer or the Dometic Marine Service Department at +1 954-973-2477.
The Passport I/O is covered under existing Marine Air Warranty Policy. Incorrect installation, neglect and system abuse are not covered under Marine Air Warranty Policy.
FEATURES
STANDARD
•Universal 115/230 volt, 50/60 Hz AC power supply.
•User-friendly four-button display panel.
•5V microcontroller located in the display.
•Option to display temperature in degrees Fahrenheit or Celsius.
•Ambient air sensor in face plate.
•20 programmable parameters.
•Nonvolatile memory requires no backup power.
•Switch inputs for High/Low Refrigerant pressure.
•Humidity Mode control.
•De-icing cycle prevents evaporator icing.
•Programmable fan operation.
•Programmable compressor delays.
•Programmable display brightness.
•Programmable fail-safe modes.
OPTIONAL
•Outside air-temperature sensor.
•Alternate air-temperature sensor.
•Pump Sentry water sensor.
•Electric heating control capabilities.
•Air Filter Cleaning or Replacement Timer (available in software revision A15 or newer).
•Low-Voltage Monitor (available in software revision A15 or newer).
This manual provides all necessary information for proper installation and operation of the Passport I/O. Poor installation or misunderstood operating parameters will result in unsatisfactory performance and possible failure.
DESCRIPTION OF CONTROL
See Figure 1 and Table 1 on page 3 to identify all parts of the control.
POWER
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.
SET POINT
Press the Up or Down button to set the desired room temperature. To view the set point, momentarily press and release the Up or Down button.
FAN
Fan-speed operation is automatic, allowing fan speed to decrease as set-point temperature is approached in the Cool Mode. The fan operates at low speed when set point is satisfied.
Normally the automatic fan speed operation is reversed in the Heating Mode, however, you can program the fan to operate the same as in the Cooling Mode.
L-2231 ENGLISH |
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Description of Control |
Passport I/O Control Operations Manual |
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Press the Fan button to select manual fan speeds if you want to override automatic operation. You can program the fan to run only during a cool or heat cycle, otherwise the fan runs constantly.
MEMORY
The Passport I/O has nonvolatile memory requiring no batteries or backup power. When power is lost, the operating parameters are retained indefinitely. When power is restored, the control resumes operating as last programmed.
Figure 1: Passport I/O Display Panel and Indicators
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L-2231 ENGLISH |
Passport I/O Control Operations Manual |
Important Programming Notes To Installer and End User |
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Table 1: Passport I/O Display - Diagram Legend
1 |
Cool Mode indicator |
6 |
Temperature sensor |
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2 |
Fan indicator |
7 |
Down button - Lower temperature set point |
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3 |
Heat Mode indicator |
8 |
Fan button |
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4 |
Digital display |
9 |
Power button |
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5 |
Up button - Raise temperature set point |
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IMPORTANT PROGRAMMING NOTES TO INSTALLER AND END USER
1.If your air conditioning unit is Cool Only (if it does not have a reversing valve), then you MUST program Cool Only Mode into parameter P-1 (factory default is Automatic Mode). DO NOT program Automatic Mode for a Cool Only unit. If Automatic Mode is selected and the thermostat calls for heat, the compressor will run. Since there is no reversing valve, the air conditioning unit will supply cool air when heating is desired. Cool Only units do not heat. See “P-1: Operating Mode” on page 9 for more information on how to set the proper operating mode.
2.If your air conditioning unit 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. (The SC motor of an HV unit is inside the blower, and the unit has “VTD” or “HV” in the model number.) Only reprogram this parameter if you do NOT have an HV blower.
3.When powering on the control, press and immediately release the Power button so you do not unintentionally enter Program Mode. You will enter Program Mode if the Power button is pressed and held for more than 5 seconds. If you enter Program Mode unintentionally, any subsequent presses of the Up or Down buttons will change the P-1 parameter setting since it is the first parameter shown after entering this mode. This will change the operating mode to Cool Only, Heat Only, or Automatic, which could result in improper system operation. Always use care when in Program Mode. For further information, refer to “Using Program Mode” on page 7.
NORMAL HEATING OR COOLING CYCLE
In Automatic Mode, heating and cooling are supplied as required. Based on the set point, Automatic operation maintains a 2°F (1.1°C) temperature variation. If a 4° F (2.2° C) change in temperature occurs, the unit to shifts to the opposite mode. Once in Heat Mode or Cool Mode, the control maintains a 2°F (1.1°C) differential.
If you program Cool Mode, only cooling is supplied. The cabin temperature is maintained within 2°F (1.1°C) of set point. If you program Heat Mode, only heating is supplied. The cabin temperature is maintained within 2°F (1.1°C) of set point. When the heating or cooling set point is satisfied, the compressor cycles off and the fan returns to low speed. The fan speed remains constant if Manual Fan Speed is selected.
For more programming information on this feature, see “P-1: Operating Mode” on page 9.
REVERSING-VALVE OPERATION
The position of the reversing valve determines if the system is in Cool Mode or Heat Mode.
In addition, the reversing valve is programmed to toggle in these situations:
•When the system is running and heating or cooling is required, the reversing valve toggles to the opposite mode to reduce the starting surge of the compressor.
•When a cooling or heating cycle is called for and if the system has been off for less than 75 seconds.
•When a cycle is interrupted from the display panel by pressing the Power button or changing the set point.
Unnecessary valve toggling is limited to reduce reversing-valve noise. You can totally eliminate valve toggling by programming the minimum compressor staging delay to 75 seconds or greater (see “P-4: Compressor Staging Time Delay” on page 10 for more information).
Power-On Reset, which occurs when the system is powered up, always initiates a valve toggle.
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Choosing the Location |
Passport I/O Control Operations Manual |
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INSTALLING THE DISPLAY PANEL
CHOOSING THE LOCATION
Before mounting the control panel, consider the location. The display panel’s built-in air sensor provides excellent room-air temperature sensing when properly located and installed. For air-sensor location see item 6 in Figure 1, page 2.
Mount the display panel on an inside wall, slightly higher than mid-height of the cabin, in a location with freely circulating air where it can best sense average temperature. Its distance from the air conditioner must be within the 15’ (4.5m) length of the display cable (custom lengths available).
Do not mount the display in direct sunlight, near any heat-producing appliances or in a bulkhead where temperatures radiating from behind the panel may affect performance. Do not mount the display in the supply-air stream. Do not mount the display above or below a supply-air or return-air grille. Do not mount the display behind a door, in a corner, under a stairwell or any place where there is no freely circulating air.
If you can not mount the display in a suitable location for accurately sensing room temperature, install the optional remote air sensor.
MOUNTING THE DISPLAY
1.Make the cut-out for the display panel.
•For Compact - Cut-out size is 2.4" (61mm) wide by 1.8" (46mm) high.
•For legacy model - Cut-out size is 3.375" (86mm) wide by 2.875" (73mm) high.
2.Plug one end of the display cable (8-pin connector) into the upper-right socket on the circuit board in the electric box and the other end into the back of the display panel.
3.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. The bulkhead adapter (sold separately) mounts to the bulkhead with screws and the display panel is secured to the adapter with adhesive strips. Do not use a screw gun and do not overtighten screws when mounting adapter.
MOUNTING THE OPTIONAL SENSORS
NOTE
Do not staple any sensor cables when mounting.
REMOTE AIR SENSOR
Install the optional remote air sensor if the display can not be mounted in a proper location for accurately sensing room temperature. Installing the remote air sensor overrides the display’s built-in sensor. The standard cable length for the remote air sensor is 7 feet (2.1m).
1.Mount the remote air sensor in the return-air stream behind the opening of the return-air grille.
2.Plug its cable (6-pin connector) into the “ALT AIR” socket #J4 in the upper-left corner of the circuit board.
OUTSIDE-AIR TEMPERATURE SENSOR
Install the optional outside-air temperature sensor to monitor the temperature outside the cabin. Outside-air sensor cables are available in various lengths.
1.Mount the sensor outside but not in direct sunlight.
2.Plug its cable into the “OAT” socket #J3.
SERVICE SENSOR
Install the optional condenser coil temperature sensor into the “SERVICE/H2O” socket #J5. Use of this sensor must be enabled via program parameter P-9, the Pump Sentry feature. See “P-9: Optional Pump Sentry” on page 9 for details.
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L-2231 ENGLISH |
Passport I/O Control Operations Manual |
Operator Controls and Display Panel |
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OPERATION
OPERATOR CONTROLS AND DISPLAY PANEL
Refer to Figure 1, page 2 for the button locations and display functions listed below.
DISPLAY INDICATORS
•Cool Mode Indicator - The Cool Mode LED lights when the cool-only mode is selected or when the unit is in an Automatic Mode cooling cycle.
•Fan Indicator - The Fan Indicator LED lights when a manual fan speed is selected.
•Heat Mode Indicator - The Heat Mode LED lights when the heat-only mode is selected or when the unit is in an Automatic Mode heating cycle.
•Digital Display - The 3-digit, 7-segment digital display shows inside air temperature when the control is on. It displays the set point when either the Up or Down button is pressed. The display also indicates program information and fault codes. When the control resumes operation after a power interruption, "888" appears in the display and all the LEDs light for one second. This is normal Power-On Reset operation.
BUTTON FUNCTIONS - SINGLE
•Power button - Press and release to toggle between the On and Off Modes.
•Up button - Press and release to display the set point. Press and hold the Up button to increase the set point. Set point increases one degree each time the button is pressed.
•Down button - Press and release to display the set point. Press and hold the Down button to decrease the set point. Set point decreases one degree each time the button is pressed.
•Fan button - Press to advance through the available fan settings. One through six indicates Manual Fan Speeds. One is the lowest fan speed and six is the highest fan speed. The letter “A” displays when automatic fan operation is selected.
BUTTON FUNCTIONS - DUAL
•Up & Down buttons (On Mode) - Simultaneously press the Up and Down buttons while in the On Mode to display outside air temperature (if the optional outside air temperature sensor is installed).
•Up & Down buttons (Program Mode) - Simultaneously press the Up and Down buttons while in the Program Mode to set new program defaults.
•Power & Down buttons (On Mode) - Simultaneously press the Power and Down buttons while in the On Mode to enter the Moisture Mode.
•Power & Down buttons (Fault History) - Simultaneously press the Power and Down buttons while viewing the service fault history log to clear the fault history log.
•Power & Up buttons (On Mode) - Simultaneously press the Power and Up buttons to view the service sensor temperature (P-9 must be turned on).
SPECIAL BUTTON FUNCTIONS
To implement these special functions, disconnect AC power, then press and hold the specified button while reconnecting AC power.
•Service-History Log - With power to the unit disconnected, press and hold the Fan button while reconnecting the AC power to view the service history log. Press the Power button once to exit the service history log. See “Service History Log” on page 17 for details.
•Self-Test Mode - With power to the unit disconnected, press and hold the Power button while reconnecting the AC power to enter the Self Test Mode. Use the self test to diagnose problems and test the air conditioning system. See “Automated Factory Self-Test Program” on page 17 for details.
•View Hour Meter - With power to the unit disconnected, press and hold the Down button while reconnecting the AC power to view the compressor hour meter. Maximum recordable time is 65,536 hours. See “Hour Meter” on page 17 for details.
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