DOMETIC Climate Control Smart Touch Marine Cabin Control Instruction Manual

DOMETIC Climate Control Smart Touch Marine Cabin Control

Product Specifications

• Product Name: Smart Touch Cabin Control
• Designed for use with: Direct Expansion (DX), Reverse-cycle air conditioner systems, and Chilled Water (CW) systems
• Programmable Parameters: 22
• Features: Dehumidification mode, de-icing function, nonvolatile memory, CAN-bus network capability
• Optional Sensors: Available for customization

Product Usage Instructions

General Safety Messages
Always ensure that service and maintenance are carried out by qualified personnel.

Important Notes
Read and follow all instructions, guidelines, and warnings in the manual to ensure proper installation, use, and maintenance of the product.

Intended Use
The Smart Touch Cabin Control is designed for controlling air conditioning and chilled water systems with various programmable parameters for customization.

Installation and Setup
Follow the installation and setup instructions provided in the manual to ensure proper functioning of the Smart Touch Cabin Control.

Choosing the Location
Consider the location requirements for mounting the control panel to ensure accurate room-air temperature sensing by the built-in air sensor.

Frequently Asked Questions (FAQ)

1. Q: What should I do if I encounter a situation that may result in property damage?
   A: Always pay attention to the notices provided and take necessary precautions to avoid any potential damage.

2. Q: Can I customize the settings of the Smart Touch Cabin Control?
   A: Yes, the product offers 22 programmable parameters for custom installations, allowing for personalized settings.

3. Q: How can I find the installation and operating manual online?
   A: You can find the manual online at qr.dometic.com/besUJL.

Copyright
© 2024 Dometic Group. The visual appearance of the contents of this manual is protected by copyright and design law. The underlying technical design and the products contained herein may be protected by design, patent or pending patent. The trademarks mentioned in this manual belong to Dometic Sweden AB. All rights are reserved.

Important notes
Please read these instructions carefully and follow all instructions, guidelines, and warnings included in this product manual in order to ensure that you install, use, and maintain the product properly at all times. These instructions MUST stay with this product.
By using the product, you hereby confirm that you have read all instructions, guidelines, and warnings carefully and that you understand and agree to abide by the terms and conditions as set forth herein. You agree to use this product only for the intended purpose and application and in accordance with the instructions, guidelines, and warnings as set forth in this product manual as well as in accordance with all applicable laws and regulations. A failure to read and follow the instructions and warnings set forth herein may result in an injury to yourself and others, damage to your product or damage to other property in the vicinity. This product manual, including the instructions, guidelines, and warnings, and related documentation, may be subject to changes and updates. For up-to-date product information, please visit documents.dometic.com.

Related documents

Find the installation and operating manual online on qr.dometic.com/besUJL.

Explanation of symbols and safety instructions

This manual has safety information and instructions to help you end or reduce the risk of accidents and injuries.

Understanding signal words

   WARNING!
Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION!
Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
NOTICE!
Indicates a situation that, if not avoided, can result in property damage.
NOTE
Supplementary information for operating the product.

Supplemental directives
To reduce the risk of accidents and injuries, please observe the following directives before proceeding to install or operate this appliance:

• Read and follow all safety information and instructions.
• Read and understand these instructions before installing or operating this product.
• The installation must comply with all applicable local or national codes, including the latest edition of the following standards:
• American Boat and Yacht Council (ABYC) E-11 AC and DC Electrical Systems on Boats
• ANSI/NFPA70, National Electrical Code (NEC)

General safety messages
WARNING! ELECTRICAL SHOCK, FIRE, AND/ OR EXPLOSION HAZARD.

Failure to obey the following warnings could result in death or serious injury:
Service and maintenance must be done by a qualified service person only.

• Use only Dometic replacement parts and components that are specifically approved for use with the appliance.
• Avoid improper installation, change, alterations,service, or maintenance of the appliance.
• Use care when diagnosing and/or adjusting components on a powered unit.

NOTICE! Failure to obey this notice could lead to water deep-freezing in the condenser coil which can damage to the unit.

• Do not operate the air conditioner unit in water that is cooler than 38 °F (3.33 °C).
• Do not change this product in any way.

Intended use

The Dometic Smart Touch Cabin Control is a microcontroller-based unit designed for use with direct expansion (DX), reverse-cycle air conditioner systems and and chilled water (CW) systems.
The Smart Touch Cabin Control offers 22 programmable parameters for custom installations, including a dehumidification mode to control relative humidity and
de-icing to prevent evaporator coil icing. The system offers a nonvolatile memory that retains settings without batteries and CAN-bus network capability. Optional sensors are available for further customization.
Dometic Corporation reserves the right to change appearances and specifications with-out notice.

The manufacturer accepts no liability for damage in the following cases:

• Faulty assembly or connection
• Damage to the product resulting from mechanical influences and excess voltage
• Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in the operating manual

Installation and setup

This section describes how to install and set up the Smart Touch Cabin Control.

NOTICE! The system ‘s built-in air sensor is located in the control display panel.

• You must locate the display on an interior wall at eye level.
• Do not locate in direct sunlight or inside a cabinet.
• If these conditions cannot be met, you must buy the optional inside air temperature sensor and install it in the return-air stream.
• Do not use a screw gun and do not overtighten the screws when mounting the display because either method may damage the display.
• Do not staple sensor cables when mounting.

Choosing the location
This section describes the location requirements.

1. 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 the sensor location on the display panel, see Figure 9 under Installing the Display Panel.
2. Ensure the following requirements are met when mounting the display panel:
   • Install the display on an inside wall, slightly higher than mid-height of the cabin.
   • Select a location with freely circulating air where the temperature sensor can best sense average temperature.
   • Select a location within 15 ft (4.57 m) of the air conditioner to accommodate the length of the display cable (custom lengths are available).
   • Avoid installing the display in direct sunlight, near any heat-producing appliances, or in a bulkhead where temperatures radiating from behind the panel may affect performance.
   • Avoid installing the display in the supply air stream, above or below a supply air or return-air grille, behind a door, in a corner, under a stairwell, or any place where there is no freely circulating air.

NOTE
If you cannot mount the display in a suitable location, install the optional inside air temperature sensor.

Installing the display panel
This section describes how to mount the display panel.

1. Make the cut-out for the display panel to measure 2.91 in (74 mm) wide by 2.20 in (56 mm) high.
2. Plug the 8-pin connector end of the display cable into the upper-right socket on the circuit board in the electric box.
3. Plug the other end to the back of the display panel.
4. Secure the display panel to the bulkhead using the four screws provided.
5. When the display is securely mounted, place the bezel over the display frame and snap into place.

Installing the optional sensor hardware
This section describes where and how to mount more sensors.

Inside air temperature sensor
If the display cannot be mounted in a proper location, install this optional sensor to check the cabin temperature. The installed sensor will override the display built-in temperature sensor.
NOTE The sensor’s distance from the air conditioner must be within the 7 ft(2.13 m) standard cable length.

1. Mount the sensor in the return-air stream behind the opening of the return-air grille.
2. Plug the 6-pin connector cable into the inside jack #J3 in the upper-left corner of the circuit board.

Outside air temperature sensor
Install this optional sensor to check the outside air temperature.
NOTE The sensor’s cables are available in various lengths.

1. Mount the sensor outside, but not in direct sunlight.
2. Plug the cable into the OAT plug #P6.

Room temperature/relative humidity sensor
Install this optional sensor to check the relative humidity of the cabin.
NOTE The control board automatically detects the this sensor and immediately starts measuring humidity.

1. Mount the sensor in the same location as the optional inside air temperature sensor.
2. Plug the sensor’s 6-pin connector into the inside temperature socket at the edge of the circuit board.

Pump sentry water sensor – DX only
Install this optional DX sensor to check the condenser coil temperature.

1. Mount the sensor at the condenser coil outlet and install insulation around it.
2. Plug the sensor into the H2O OUT plug #P5.

Seawater low-limit temperature sensor – DX only
Install this optional DX sensor to check the temperature of the seawater feeding the air conditioner.

1. Mount the sensor in direct contact with the copper pipe, using thermal mastic to ensure a good heat transfer.
2. Strap the sensor wire in place for strain relief and to prevent the sensor from being accidentally removed.
3. Plug the sensor’s 2-pin connector into the loop water out (blue) socket located on the circuit board.

Water inlet temperature sensor – CW only
Install this optional CW sensor to check the water temperature. When using the AH Mode with a CW air handler.

1. Ensure the sensor has good contact with the copper pipe.
2. Attach the sensor to the chilled-water inlet on the air handler.
3. Plug the water inlet sensor cable into the H2O IN plug # P4.

NOTE Do not attach to a rubber hose.

Operation

This section describes the operating features.

1. Use the main menu settings to adjust the operating parameters and to fine-tune the system for the most efficient operation.
   Variables such as ducting, sensor location, and system layout affect the system operation.
   The control has factory default settings stored in permanent memory that can be re-called.

2. The control has factory default settings stored in permanent memory that can be re-called. To return to the default settings, select main menu > control para-meters > recall defaults.

3. Reprogrammed, new settings can be saved as memorized settings, and then re-called and saved at any time. To use the reprogrammed settings, select main menu > control parameters > memorize settings > recall memorized.
   See section in full manual “Understanding the Memory Settings“ for more information.

Understanding the operating cycles
This section describes how the system responds during normal heating and cooling cycles.

Automatic mode
Heating and cooling are supplied as required.
A cooling cycle will start when the cabin temperature exceeds the set point by 2 °F (1 °C) and will continue to cool until the temperature equals the set point. See the section in full manual set point temperature differential for instructions on how to reduce this variation to 1 °F (1 °C).
To switch from cooling to heating, the cabin temperature must drop below the set point by at least 4 °F (2 °C). Similarly, if heating is required, a heating cycle will start when the cabin temperature is below the set point by 2 °F (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 °C) to switch from heating to cooling.

Cool or heat mode
Heating and cooling are supplied as selected.

• By selecting cool mode, only cooling is supplied.
• By selecting heat mode, only heating is supplied.

The cabin temperature in either mode is maintained within 2 °F (1 °C) of the set point by default.
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 “Understanding the Operating Modes.

CW systems
This section applies to CW systems only.
When cooling or heating is required, the water valve will not open unless the water temperature is adequate.

1. View the water temperature by pressing the temperature indicator icon until the water temperature is displayed.

The fan remains in low speed until an adequate water temperature is available. Heat will be supplied when no heating is available (water temperature is inadequate)
only if the optional electric heater is installed and programmed.
An adequate cooling or heating water temperature is defined by the water temperature differential setting, under CW control parameters. The factory default is set at a 15 °F (8 °C) differential from the ambient air temperature.

Reversing valve
This section applies to 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 five minutes.
• 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. To completely end valve toggling, program the minimum compressor staging delay to five minutes or greater. See section in full manual Understanding the DX Operational Settings for more information on setting the compressor start delay. Power-on reset, which occurs when the system is powered up, always initiates a valve toggle.

Understanding the operating modes
This section describes the available operating modes.

Off
All control outputs are turned off. All settings are saved in nonvolatile memory.

On
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
The system provides heating and cooling as required. The automatic mode icon displays the cabin temperature in a given mode and is maintained within 2 °F (1°C) of the set point by default. See the section set point temperature differential for instructions on how to reduce this variation to 1 °F (1 °C) If the system was most recently cooling, the cabin temperature must drop below the set point by at least 4 °F (2 °C) 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 or 4 °F (2 °C) 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
The cooling mode icon displays and only the cooling system operates as required. If the ambient temperature drops below the set point, the system will not automatically switch to heat mode.

Heat
he heating mode icon displays 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.

Dehumidification

The dehumidification mode helps to control humidity while away from the boat or away from a particular cabin.
The dehumidification mode will also prevent the boat or a particular cabin from dropping below a minimum temperature to prevent the contents from freezing. When the temperature drops low, eliminating moisture may become less of a concern and maintaining some minimum temperature may become more important. The change range is 40.0 … 75.0 °F (4.44 … 23.88 °C). To adjust the 50 °F (10 °C) factory default to a different temperature, see full manual for section humidity mode minimum temperature.
While the control is in On mode, press the mode icon until the dehumidification mode icon displays. Once the dehumidification mode is enabled, the fan circulates the air for 30 min. During this time, the air temperature is sampled and entered into memory. After 30 min, a cooling cycle starts and continues until the temperature is lowered 2 °F (1°C) or until the cooling cycle runs a maximum of one hour.
Four hours after the temperature is satisfied or the cooling cycle times out, this cycle repeats.
After the 30 min fan circulation, if the temperature is at or above the factory default setting of 50 °F (10 °C), a cooling cycle starts and runs as described above.
However, if the temperature is below 50 °F (10 °C), a heating cycle will begin. The heating cycle will continue until the temperature reaches 50 °F (10 °C) or until the heating cycle runs a maximum of one hour.
Four hours after the temperature is satisfied or the cooling/heating cycle times out, the entire cycle repeats, each time determining whether cooling or heating is required.
NOTE For DX systems only: on systems configured with reverse-cycle heat, the dehumidification mode heat cycle will not run when the ambient temperature is below 40 °F (4.44 °C). This protects the condenser coil from freezing. Systems configured with auxiliary electric heat will run the dehumidification mode heat cycle regardless of the room temperature.
The word Dehumidify displays when the control is in dehumidification mode. It flashes if the optional humidity sensor is connected and operating in the cooling mode.

Understanding the fan modes
This section describes the available fan modes.

Automatic
The automatic fan mode allows the Smart Touch Cabin Control to decide the required fan speed based on the temperature differential. This permits a balance between the most efficient temperature control and slower, quieter fan speeds.
Three automatic fan speeds are available: high, medium and low.
To select automatic fan mode, press and release the Fan icon until the word Auto displays above the graph.

Manual
The manual fan mode maintains a selected, desired fan speed. When a manual fan speed is selected, the fan speed bar graph indicates the speed. The bar level will
increase as you increase the speed setting.
Three manual fan speeds are available: high, medium and low.
To select a manual speed, press and release the Fan icon until the desired speed is reached.

Fan-only
The fan-only mode operates the fan for air circulation when no cooling or heating is desired.
Three fan-only speeds are available: high, medium, and low.

1. Beginning in Off mode, press and release the Fan icon until the desired speed is reached.
2. Press and release a fourth time to turn off the fan or place it in auto mode.

NOTE Turning on the control will revert the fan to the automatic mode or the last selected manual fan setting.

Cycled fan
The cycled fan mode operates the fan only during heating or cooling cycles.
When used with an optional electric heater, the fan remains on for four minutes after the heater cycles off.

Continuous fan
The continuous fan mode operates the fan continuously as long as the system is in On mode.

Disposal
Place the packaging material in the appropriate recycling waste bins, wherever possible. Consult a local recycling center or specialist dealer for details about how to dispose of the product in accordance with the applicable disposal regulations.

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