Dometic Smart Touch Cabin Control User manual

COPYRIGHT © 2011-2015 Dometic Corporation. 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 Corporation. Every precaution
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errors and omission. Neither is any liability assumed for damages resulting from the use of this product and information contained
herein.
Smart Touch Cabin Control
Installation & Operations Manual
Smart Touch Cabin Control
(shown in optional white bezel)
Dometic Corporation
Rev. 20150220
L-3380 English
P/N 337767

L-3380 ENGLISH
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
READ THIS MANUAL BEFORE PROCEEDING . . . . . . . . . 1
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OPTIONAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION OF CONTROL . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT PROGRAMMING NOTES TO INSTALLER AND
END USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MEMORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NORMAL HEATING OR COOLING CYCLE . . . . . . . . . . . . 3
REVERSING VALVE OPERATION
(FOR DX SYSTEMS ONLY) . . . . . . . . . . . . . . . . . . . . . 3
INSTALLING THE DISPLAY PANEL . . . . . . . . . . . . . . . 4
CHOOSING THE LOCATION . . . . . . . . . . . . . . . . . . . . . 4
MOUNTING THE DISPLAY . . . . . . . . . . . . . . . . . . . . . . 4
MOUNTING THE OPTIONAL SENSORS . . . . . . . . . . . . . 5
REMOTE AIR SENSOR . . . . . . . . . . . . . . . . . . . . . 5
OUTSIDE AIR TEMPERATURE SENSOR . . . . . . . . . 5
SERVICE SENSOR (FOR DX SYSTEMS ONLY) . . . . 5
WATER INLET SENSOR
(FOR CW SYSTEMS ONLY) . . . . . . . . . . . . . . . . . 5
BATTERY BACKUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BATTERY BACKUP OPERATION . . . . . . . . . . . . . . . . . . 6
BATTERY BACKUP SPECIFICATIONS . . . . . . . . . . . . . . . 6
BATTERY BACKUP INSTALLATION/REPLACEMENT . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
OPERATOR CONTROLS AND DISPLAY PANEL . . . . . . . . 7
HOME SCREEN ICON FUNCTIONS . . . . . . . . . . . . . 7
MAIN SCREEN ICON FUNCTIONS . . . . . . . . . . . . . 7
MODES OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . 8
OFF MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ON MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
AUTOMATIC MODE . . . . . . . . . . . . . . . . . . . . . . . 8
COOL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
HEAT MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MOISTURE MODE . . . . . . . . . . . . . . . . . . . . . . . . 9
FAN MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MAIN MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CONTROL PARAMETERS . . . . . . . . . . . . . . . . . . . 10
PROGRAM SCHEDULER . . . . . . . . . . . . . . . . . . . 16
DATE/TIME MENU . . . . . . . . . . . . . . . . . . . . . . . 17
SYSTEM MENU . . . . . . . . . . . . . . . . . . . . . . . . . 17
TROUBLESHOOTING/COMMISSIONING . . . . . . . . . 19
FAULT HANDLING, HISTORY & RUN HOURS . . . . 20
QUICK-START OPERATIONS CHECKLIST . . . . . . . . . . . 21
MAIN MENU PROGRAMMABLE PARAMETERS . . . . . . . 22
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 27
GENERAL TROUBLESHOOTING . . . . . . . . . . . . . . . . . . 27
DIGITAL CONTROLS TROUBLESHOOTING . . . . . . . . . . 30
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SYSTEM COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . 32
REVERSING VALVE (FOR DX SYSTEMS ONLY) . . 32
S EAWATER S TRAINER (F OR DX SYSTEMS ONLY ) . 32
CONDENSER COIL (FOR DX SYSTEMS ONLY) . . . 32
RETURN-AIR FILTER . . . . . . . . . . . . . . . . . . . . . 32
WINTERIZATION (FOR DX SYSTEMS ONLY) . . . . . 32
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
OPERATIONAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
CABLE LENGTHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SYSTEM INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
OWNERS LIMITED WARRANTY . . . . . . . . . . . . . . . . . 34
SECTION I - WHAT’SCOVERED . . . . . . . . . . . . . . . . . 34
SECTION II - WHAT’SNOT COVERED . . . . . . . . . . . . . 34
SECTION III - COVERAGE PERIOD . . . . . . . . . . . . . . . 35
SECTION IV - GETTING SERVICE . . . . . . . . . . . . . . . . 35
TABLE OF WARRANTY PERIODS . . . . . . . . . . . . . . . . . 36
DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
DX AND CW SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . 37
CW SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Smart Touch Cabin Control Installation & Operations Manual INTRODUCTION
L-3380 ENGLISH 1
INTRODUCTION
The Smart Touch Control 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 Smart Touch. If you have questions
or require assistance with your Smart Touch control, contact the Dometic Marine Service Department at [phone].
The Smart Touch is covered under existing Marine Air Systems Warranty Policy. Incorrect installation, neglect and system
abuse are not covered under Marine Air Systems warranty policy.
FEATURES
STANDARD
• User-friendly touchscreen display requires no manual for basic operation.
• 5-volt logic and microcontroller located in the display.
• Automatic and three programmable manual fan speeds.
• 21 programmable parameters for custom installations.
• Moisture Mode for controlling relative humidity.
• De-icing cycle to prevent evaporator coil icing.
• Programmable compressor staging delays.
• Universal 220/115-230 volt, 50/60 Hz AC power supply.
• Nonvolatile memory retains settings without batteries.
• Programmable display-brightness control.
• Programmable failsafe modes.
• Fits Vimar® Eikon and Eikon EVO switch bezels.
OPTIONAL
• Outside air temperature sensor.
• Alternate air temperature sensor.
• Pump Sentry water sensor.
• Electric heating control capabilities.
• CAN-bus network capability.
• Air Filter Cleaning or Replacement Timer.
• Low-Voltage Monitor.
This manual provides all necessary information for proper installation and operation of the Smart Touch Display. Poor
installation and misunderstood operating parameters will result in unsatisfactory performance and possible failure.

INTRODUCTION Smart Touch Cabin Control Installation & Operations Manual
2L-3380 ENGLISH
DESCRIPTION OF CONTROL
See Figures 1, 2 to identify Home and Main screen displays.
Figure 1: Smart Touch Home Screen
Smart Touch Home Screen Display Layout
1. Temperature Indicator icon (Inside, set point, outside, and water temperatures)
2. Up icon - Raise temperature set point
3. Down icon - Lower temperature set point
4. Main Screen icon
5. Power icon
Figure 2: Smart Touch Main Screen
Smart Touch Main Screen Display Layout
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4
8
1. Mode Selection icon
2. Home Screen icon
3. Up icon - Raise temperature set point
4. Fan Mode Selection icon
5. Fan Mode Indicator (Auto, high, medium, low)
6. Temperature Indicator (Inside, Set Point, Outside, and Water)
7. Down icon - Lower temperature set point
8. Menu icon
9. Status & Schedule icon
10. Power icon

Smart Touch Cabin Control Installation & Operations Manual INTRODUCTION
L-3380 ENGLISH 3
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 select Cool Only Mode.
DO NOT select 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 “Modes of Operation” on page 8 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 General Setting 8, “Fan Motor Type”, 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 General Setting if you do NOT have an HV blower.
NOTE: Do not staple any sensor cables when mounting.
MEMORY
When the Smart Touch losses power, the operating parameters are retained for up to 2 years. When power is restored, the
control resumes operating as last programmed. The Smart Touch has a battery backup. If the battery backup is removed, only
time and date settings will be lost.
NORMAL HEATING OR COOLING CYCLE
In Automatic Mode, heating and cooling are supplied as required. If cooling is required, the system will start a cooling cycle
when the cabin temperature exceeds the set point by 2°F (1.1°C) and will continue to cool until the temperature equals the set
point. (See “General Setting, Set Point Temperature Differential”, on page 12 for instructions on how to reduce this variation to
1°F [0.55°C].) The cabin temperature must drop below the set point by at least 4°F (2.2°C) in order for the system to switch from
cooling to heating. Similarly, if heating is required, the system will start a heating cycle when the cabin temperature is below the
set point by 2°F (1.1°C) and will continue to heat until the temperature equals the set point. The cabin temperature must exceed
the set point by at least 4°F (2.2°C) in order for the system to switch from heating to cooling. If you select Cool Mode, only
cooling is supplied. If you select Heat Mode, only heating is supplied. The cabin temperature in either mode is maintained within
2°F (1.1°C) of set point by default. (See “General Setting, Set Point Temperature Differential”, on page 12 for instructions on
how to reduce this variation to 1°F [0.55°C].) 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 information on this
feature, see “Modes of Operation” on page 8.
(For CW systems only)
When cooling or heating is required, the water valve will not open unless the water temperature is adequate. You can view
the water temperature by pressing the Temperature indicator icon until the Water temperature is displayed. The fan remains in
low speed until the adequate water temperature is available. Heat will be supplied when no heating is available only if the
Optional Electric heater has been installed and programmed.
Adequate cooling or heating water temperature is defined by the Water Temperature Differential setting, under CW Control
Parameters. Its factory default is set at 15°F (8.3°C) differential from the ambient air temperature.
REVERSING VALVE OPERATION (FOR DX SYSTEMS ONLY)
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 icon 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 “DX Operational Setting Compressor Start Delay” on
page 13 for more information). Power-On Reset, which occurs when the system is powered up, always initiates a valve toggle.
NOTICE
The system’s air sensor is located in the control’s display panel; therefore the display MUST be located on
an interior wall at eye level. It must NOT be located in direct sunlight or inside a cabinet. If these
conditions cannot be met, you must purchase the Optional Remote Air Sensor and install it in the return-
air stream.

INSTALLING THE DISPLAY PANEL Smart Touch Cabin Control Installation & Operations Manual
4L-3380 ENGLISH
INSTALLING THE DISPLAY PANEL
CHOOSING THE LOCATION
Figure 3: Smart Touch Display Front Panel
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 Figure 3. 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 ft (4.5 m) 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 cannot 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. Cut-out size is 2.900" (7.36 cm) wide by 2.165" (5.50 cm) 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.
Figure 4: Smart Touch Display Mounting Dimensions
(Drawing not to scale – not a template)

Smart Touch Cabin Control Installation & Operations Manual INSTALLING THE DISPLAY PANEL
L-3380 ENGLISH 5
3. Secure the display panel to the bulkhead using the four screws provided.
Do not use a screw gun and do not overtighten screws when mounting, because either method may damage the
display.
4. When the display is securely mounted, mount the bezel over the display frame until it snaps into place.
Figure 5: Smart Touch Display Top View Mounting Dimensions
MOUNTING THE OPTIONAL SENSORS
REMOTE AIR SENSOR
Install the optional remote air sensor if the display cannot 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 ft (2.1 m).
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 (FOR DX SYSTEMS ONLY)
Install the optional condenser coil temperature sensor into the “SERVICE/H2O” socket #J5. Use of this sensor must be enabled
by going to DX Operational Setting and then Pump Sentry feature.
WATER INLET SENSOR (FOR CW SYSTEMS ONLY)
When using the AH-Elite with a chilled-water air handler, plug the water-inlet sensor cable into the “SERVICE/H2O” socket #J5.
Attach the sensor to the chilled-water inlet on the air handler. Ensure that the sensor makes good contact with the copper pipe.
DO NOT attach to rubber hose.

BATTERY BACKUP Smart Touch Cabin Control Installation & Operations Manual
6L-3380 ENGLISH
BATTERY BACKUP
BATTERY BACKUP OPERATION
The battery backup will last over 2 years of “powered-off time”. This means that if the Smart Touch is plugged into a control that
is powered up, the battery is not being drained. Only when the AC power to the control board is powered off is the battery being
drained in the Smart Touch itself.
When the battery dies, is removed, or replaced, the only information that is lost is the date and time. No other information is lost.
Also the screen lock PIN will be reset to its default (“1234”) when the battery gets removed or dies. This is done in case the
locking PIN is forgotten and the display gets locked. All other programming parameters, calibrations, program scheduler
settings, etc., are retained in flash memory forever, and do not use the battery power at all.
When the battery dies, there will be no visible indication on the display during normal power up. What will happen is that upon a
subsequent (AC) power down and power up, the user will immediately be prompted to set the date/time setting. This is their
indication that the battery needs replacement. Note that if the battery were dead and the date/time were set correctly during a
given AC power up, as long as the display has AC power, it would retain the correct date/time indefinitely. The next time AC
power is removed, the date/time would again be lost and be prompted for upon the next AC power up. When the fresh battery
gets installed, the next AC power up will also immediately prompt for the date/time setting.
BATTERY BACKUP SPECIFICATIONS
The battery backup is included from factory with the Smart Touch display
Battery voltage: 3 V
Battery type: CR 2032
BATTERY BACKUP INSTALLATION/REPLACEMENT
Figure 6: Top View of Smart Touch Display
1. Turn off unit.
2. Unmount display from wall or panel.
3. Disconnect RJ 45 plug from the back of the display.
4. Detach battery compartment cover from the back of the display.
5. To install a new battery:
a. Insert battery in battery compartment, with positive battery sign facing south or opposite to where the RJ 45
jack is.
b. Once inserted, make sure metal lock is holding the battery in.
6. To remove or replace an old battery, pull down metal lock and at the same time pull out the battery.

Smart Touch Cabin Control Installation & Operations Manual OPERATION
L-3380 ENGLISH 7
OPERATION
OPERATOR CONTROLS AND DISPLAY PANEL
HOME SCREEN ICON FUNCTIONS
Figure 7: Smart Touch Home Screen Icon Functions
1. Power On/Off Icon - Press and release to toggle between the On and Off Modes.
2. Up Icon - Press and release to display the set point. Press and release the Up icon as many times as desired to
increase the set point. Set point increases one degree each time the icon is pressed.
3. Down Icon - Press and release to display the set point. Press and release the Down icon as many times as desired to
decrease the set point.
4. More Icon - Press and release to change display to Main Screen.
5. Status Icon - Shows the system status. (OFF, PENDING, ACTIVE, STANDBY, FAULT)
6. Temperature Indicator Icon - Press and release to select from Set point(s), Inside, Outside, or Service/Water
temperatures
7. Force Sleep Mode Icon - Press and release to force sleep mode to initiate immediately, if enabled (i.e. Sleep Delay
not equal to OFF)
MAIN SCREEN ICON FUNCTIONS
Figure 8: Smart Touch Main Screen Icon Functions
1. Mode Icon Indicator - The Mode icon indicates the current mode active. Press and release to select one of the four
operating modes. Continue to press and release the Mode Icon until the desired operating mode is reached. The mode
icons (Auto, Cool, Heat, or Moisture) light to indicate which mode is selected. It shows 4 different icons depending on
the mode:
•Auto Mode Icon Indicator - The Auto Mode icon is shown when the system is in Automatic Mode, which switches
to cooling or heating as required to satisfy the temperature set point.
•Cool Mode Indicator - The Cool Mode icon is shown when the cool-only mode is selected or when the unit is in
an Automatic Mode cooling cycle.
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OPERATION Smart Touch Cabin Control Installation & Operations Manual
8L-3380 ENGLISH
•Heat Mode Indicator - The Heat Mode icon is shown when the heat-only mode is selected or when the unit is in
an Automatic Mode heating cycle.
•Moisture Mode Indicator - The Moisture Mode icon is shown when the Moisture Mode is selected. This mode
controls humidity during periods when the vessel is unoccupied.
2. Fan Mode Indicator - Auto or Manual Indicator icon shows when Automatic fan speed or either of the three Manual
speeds are selected.
3. Power Icon - Press and release to toggle between the On and Off Modes.
4. Up Icon - Press and release to display the set point. Press and release the Up icon as many times as desired to
increase the set point. Set point increases one degree each time the icon is pressed.
5. Down Icon - Press and release to display the set point. Press and release the Down icon as many times as desired to
decrease the set point.
6. Fan Icon - 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. Press the Fan icon 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. Press and release to advance from
Auto Fan to Manual Fan. Press and release the Fan Icon to advance the manual fan speeds, from low to high. Press
and release again to return to the Automatic Fan mode. The selected Fan Mode is indicated by the Fan Indicator icon.
You can change the fan operating mode from Continuous to Cycled by going to Main Menu, Control Parameters,
General Settings, and then Fan Operate Mode.
7. Temperature Set Point Indicator Icon - Press and release to select from Set point(s), Inside, Outside, or Service/
Water temperatures
8. Main Menu Icon - Press the Menu icon to show the Main Menu page.
9. Status/Schedule Icon - Press the Status/Schedule icon to view any fault occurring in the system.
10. Dometic/Date/Time Icon - This shows the date and time if enabled. To enable it, press Menu, Date/Time Menu, and
then Date/Time Display.
MODES OF OPERATION
OFF MODE
When the control is in Off Mode, all control outputs are turned off. All settings are saved in nonvolatile memory.
ON MODE
When the control is in On Mode, power is supplied to the appropriate outputs and the display indicates the current state of
operation. The operating and program parameters resume based on those last stored when the unit was operating.
AUTOMATIC MODE
When Automatic Mode is selected, the system provides both heating and cooling as required. The Auto Mode icon is shown.
Cabin temperature in a given mode is maintained within 2°F (1.1°C) of set point by default. (See “General Settings, Set Point
Temperature Differential” on page 12 for instructions on how to reduce this variation to 1°F [0.55°C].) If the system was most
recently cooling, the cabin temperature must drop below the set point by at least 4°F (2.2°C) in order for the system to switch
from cooling to heating. Similarly, if the system was most recently heating, the cabin temperature must exceed the set point by
at least 4°F (2.2°C) in order for the system to switch from heating to cooling. This behavior prevents small temperature
overshoots from causing the system to switch between heating and cooling when it is not necessary.
COOL MODE
When Cool Mode is selected, the Cooling mode icon is shown and only the cooling system operates as required. If the ambient
temperature drops below the set point, the system will not automatically switch to the Heat Mode.
HEAT MODE
When Heat Mode is selected, the Heating mode icon is shown and only the heating system operates as required. If the ambient
temperature rises above the set point, the system will not automatically switch to the Cool Mode.