Dometic MCS T6 User manual

MCS T6, MCS T12, MCS T16

Marine Air Conditioner

Operating manual . . . . . . . . . . . . . . . . . . . . .4

Bootsklimaanlage

Bedienungsanleitung . . . . . . . . . . . . . . . . .38

Climatiseur pour bateau

Notice d’utilisation . . . . . . . . . . . . . . . . . . .77

Bootairco

Gebruiksaanwijzing. . . . . . . . . . . . . . . . . . 117

CLIMATE

AIR CONDITIONERS

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MCS T6, MCS T12, MCS T16

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MCS T6, MCS T12, MCS T16

Please read this instruction manual carefully before first use, and store it in

a safe place. If you pass on the product to another person, hand over this

instruction manual along with it.

Contents

1 Explanation of symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3 Target group for this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

4 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5 Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

6 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

7 Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

8 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

11 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

12 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

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MCS T6, MCS T12, MCS T16 Explanation of symbols

1 Explanation of symbols

2 Safety instructions

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

2.1 General safety

!CAUTION!

•Electronic devices are not toys!

Keep electrical appliances out of reach from children or infirm per-

sons.

Do not let them use the appliances without supervision.

•Persons (including children) whose physical, sensory or mental capa-

bilities or lack of experience and knowledge prevents them from using

the appliance safely should not use this appliance without initial super-

vision or instruction by a responsible person.

•Use the device only as intended.

•Do not make any alterations or conversions to the device.

WARNING!

Safety instruction: Failure to observe this instruction can cause fatal or

serious injury.

CAUTION!

Safety instruction: Failure to observe this instruction can lead to injury.

NOTICE!

Failure to observe this instruction can cause material damage and impair

the function of the product.

NOTE

Supplementary information for operating the product.

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Target group for this manual MCS T6, MCS T12, MCS T16

•Installation and repairing of the air conditioner may only be carried out

by qualified personnel who are familiar with the risks involved and the

relevant regulations. Inadequate repairs can lead to considerable haz-

ards. For repair service, please contact the service centre in your coun-

try (addresses on the back).

3 Target group for this manual

This operating manual is for air conditioner users.

4Properuse

The Marine Climate System is an air conditioning system designed for use on boats

or yachts. It can cool down or warm up the interior of the boat or yacht.

5 Technical description

The Marine Climate Systems MCS T6, MCS T12 and MCS T16 are marine air condi-

tioners which can be used for variable air conditioning inside a boat or a yacht. They

can cool and warm the room.

The Marine Climate System consists mainly of the air conditioning unit and a control

panel. A refrigerant is circulating through the system which is seawater cooled.

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MCS T6, MCS T12, MCS T16 Operating elements

6 Operating elements

6.1 Control Panel

Key to fig. 1, page 3:

Item Name Description

1 Power Button Press and release to toggle between the On and Off Modes.

2Fan Button Press to advance through the available fan settings. “1”(lowest)

through “6” (highest) indicates Manual Fan Speeds.

The letter “a” indicates automatic fan operation selected.

3 Down Button Press and release to display the set point.

Press and hold the Down Button to decrease the set point. Set

point is decreased 0.5 °C or 1 °F each time the button is

depressed.

4 Faceplate sensor The faceplate sensor will read the room temperature unless a

remote air sensor is installed.

5 Up Button Press and release to display the set point.

Press and hold the Up Button to increase the set point. Set

point is increased 0.5 °C or 1 °F each time the button is

depressed.

6 Display The inside air temperature is displayed when the control is on.

The set point is displayed when either Up or Down Button is

pressed.

The display also indicates program information and fault

codes.

When the control resumes operation after a power interruption

all the display LEDs will turn on for one second. This is normal

operating condition and is referred to as Power On Reset.

7 LED “Heat

Mode”

This LED is lit when

– the Heat Only Mode is selected

– or the unit is in a heating cycle.

8 LED “Fan

Indicator”

This LED is lit when a Manual Fan Speed is selected.

9 LED “Cool

Mode”

This LED is lit when

– the Cool Only Mode is selected

– or when the unit is in a cooling cycle.

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Operating MCS T6, MCS T12, MCS T16

6.2 Dual Button Functions

Up and Down Buttons

•While in the On Mode: Simultaneously press the Up and Down Buttons to dis-

play outside air temperature providing the optional outside air temperature sen-

sor is installed.

•While in the Program Mode: Simultaneously press the Up and Down Buttons

to set new program defaults.

Power and Down Buttons

•While viewing the service fault history log: Simultaneously press the Power

and Down Buttons to clear the fault history log (see “Service History Log” on

page 14).

•While in the On Mode: Simultaneously press the Power and Down Buttons to

enter the Dehumidification Mode (see “Dehumidification Mode” on page 11).

7Operating

7.1 Initial startup

➤Ensure seawater intake ball valve (seacock) is open.

➤Turn on air conditioner circuit breaker.

➤If the seawater pump has its own circuit breaker, turn that on.

➤Press the Fan Button (fig. 12, page 3).

✓This energizes the fan.

➤Verify that the fan is running and that there is steady airflow out of the supply-air

grille.

➤Select a temperature set point lower than the current cabin temperature.

✓This starts the compressor and seawater pump.

NOTICE!

Do not turn the unit off and immediately turn it back on. Allow at least

30 s for refrigerant pressure equalization.

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MCS T6, MCS T12, MCS T16 Operating

➤Check for a steady solid stream of seawater from the overboard discharge.

➤If the unit does not appear to be operating properly, refer to troubleshooting

guidelines (“Troubleshooting” on page 24).

7.2 Overview

Power On

➤Press the Power button (fig. 11, page 3) once to engage the system.

✓The display indicates room temperature when the system is on and is blank when

the system is off.

Set Temperature

➤Press the Up or Down button (fig. 13 and 4, page 3) to set the desired room

temperature.

The set point can be viewed by momentarily pressing and releasing the Up or

Down button.

Fan Speed

Fan-speed operation is automatic, allowing fan speed to decrease as the set point

temperature is approached in the Cool Mode. The fan operates at low speed when

set point is satisfied.

➤Use the Fan button (fig. 12, page 3) to select manual fan speeds.

You can program the fan to run only when cooling or heating is required. Normally

the automatic fan-speed operation is reversed in the Heating Mode, however, the

fan can be programmed to operate the same as in the Cooling Mode.

Memory

The control’s nonvolatile memory requires 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.

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Operating MCS T6, MCS T12, MCS T16

7.3 Modes of Operation

Off Mode

When the Marine Climate System is in the Off Mode, all control outputs are turned

off. Program parameters and user settings are saved in nonvolatile memory.

On Mode

When the Marine Climate System is in the On Mode, power is supplied to the appro-

priate outputs and the display indicates the current state of operation. The operating

and program parameters resume based on those stored the last time the unit was

operating.

Cool Mode

When Cool Mode is selected, the Cool Mode LED is lit and the cooling systems are

operated as required. When the temperature drops below the set point, the system

will not automatically switch to the Heat Mode.

Heat Mode

When the Heat Mode LED is lit, only the heating systems are selected and operated

as required. Should the temperature rise above the set point, the system will not

automatically switch to the Cool Mode.

Automatic Mode

Automatic Mode provides both heating and cooling as required. The Heat or Cool

LED will be lit according to the mode required.

Temperature in a given mode is maintained within 1.1 °C (2 °F) of set point, however

a 2.2 °C (4 °F) difference is required to allow the Marine Climate System to change

modes.

Once the mode changes temperature will be maintained within 1.1 °C (2 °F) of set

point.

Manual Fan Mode

Manual Fan Mode allows to select the desired fan speed manually. When a manual

fan speed has been selected, the Fan LED will be lit. Manual Fan Mode is sometimes

preferred when room temperature is constantly changing due to varying heat loads.

The fastest fan speed is represented by “6”, the slowest represented by “1”.

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