Metos 4312400 User manual

06/2013
Installation and Operation Manual
COLD DISPLAY
CD
4312400, 4312402, 4312410, 4312412
Translation of the original instruction manual
KYLMÄLASIKKO
CD
Varaosat
S/N: 10961001040010 Rev.: 1.0
Alkuperäiset ohjeet
4312400, 4312402, 4312410, 4312412

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Table of Contents
1. General .......................................................................................................................................................3
1.1. Symbols used in the manual .......................................................................................................................3
1.2. Symbols used on the appliance...................................................................................................................3
1.3. Checking the relation of the appliance and the manual...............................................................................3
2. Safety .........................................................................................................................................................4
2.1. Safe use of the appliance ............................................................................................................................4
2.2. Disposal of the appliance ............................................................................................................................4
3. Functional description ..............................................................................................................................5
3.1. Intended use of the appliance.....................................................................................................................5
3.1.1. Use for other purposes ...............................................................................................................................5
3.2. Operating principle ......................................................................................................................................5
3.2.1. Operating switches .....................................................................................................................................5
4. Operating instructions ..............................................................................................................................6
4.1. Operation.....................................................................................................................................................6
4.2. After use......................................................................................................................................................7
4.2.1. Cleaning.......................................................................................................................................................7
5. Installation .................................................................................................................................................8
5.1. Operating conditions ...................................................................................................................................8
5.2. Transport and storage .................................................................................................................................8
5.3. Unpacking the appliance..............................................................................................................................8
5.4. Installation ...................................................................................................................................................9
5.4.1. Condenser air circulation .............................................................................................................................9
5.5. Electrical connections................................................................................................................................ 10
5.6. Start-up...................................................................................................................................................... 10
5.7. Temperature adjustment ........................................................................................................................... 10
6. Thermostat operation .............................................................................................................................10
6.1. Display thermostat .................................................................................................................................... 10
6.1.1. Locking and unlocking the keyboard.......................................................................................................... 11
6.1.2. To see the set temperature ....................................................................................................................... 11
6.1.3. To change the temperature setting............................................................................................................ 11
6.1.4. To start the Manual Defrosting.................................................................................................................. 11
7. Troubleshooting.......................................................................................................................................12
8. Tekniset tiedot .........................................................................................................................................13

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1. General
Carefully read the instructions in this manual as they contain important information regarding proper,
efficient and safe installation, use and maintenance of the appliance.
Keep this manual in a safe place for eventual use by other operators of the appliance.
The installation of this appliance must be carried out in accordance with the manufacturer’s instructions
and following local regulations.
Persons using this appliance should be specifically trained in its operation.
Switch off the appliance in case of failure or malfunction. The periodical function checks requested in the
manual must be carried out according to the instructions. Have the appliance serviced by a technically
qualified person authorized by the manufacturer and using original spare parts.
Not complying with the above may put the safety of the appliance in danger.
1.1. Symbols used in the manual
This symbol informs about a situation where a safety risk might be at hand. Given instructions
are mandatory in order to prevent injury.
This symbol informs about the right way to perform in order to prevent bad results, appliance
damages or hazardous situations.
This symbol informs about recommendations and hints that help to get the best performance
out of the appliance.
1.2. Symbols used on the appliance
This symbol on a part informs about electrical terminals behind the part.
The removal of the part must be carried out by qualified persons only.
1.3. Checking the relation of the appliance and the manual
The rating plate of the appliance indicates the serial number of the appliance. If the manuals
are missing, it is possible to order new ones from the manufacturer or the local representative.
When ordering new manuals it is essential to quote the serial number shown on the rating plate.
The appliance has two rating plats, one in side panel’s bottom edge and the other in electrical box.

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2. Safety
2.1. Safe use of the appliance
For safe use of the appliance, observe the following safety instructions:
• When moving or servicing the appliance, always unplug it from the power supply.
• While cleaning the appliance, be cautious not to allow the electrical devices to come into contact with
water. Spraying water in the immediate vicinity of the appliance is forbidden.
• Exposing the appliance to the rain is forbidden.
• Only connect the appliance to an earthed socket.
• If the appliance is not used for a long time, it should be unplugged from the power supply, cleaned
and wiped dry on the inside.
2.2. Disposal of the appliance
• The appliance contains parts and components, the disposal of which requires special treatment.
• Contact local authorities to obtain instructions on how to dispose of the appliance.

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3. Functional description
3.1. Intended use of the appliance
The appliance is designed for use in serving lines, restaurants, cafés and kitchens.
The upper section and basin of the cold display are designed for short-time storage of precooled
foodstuffs before distribution. The appliance is not intended for refrigerating products from higher
temperatures, this also applyes the modells with a refregerated cupboard.
The front of the Halo air curtain display is open. Keeping the products cold is ensured with effective cold
air circulation.
3.1.1. Use for other purposes
Use of the appliance for any other purposes is prohibited.
Consult the manufacturer in case you intend to use the appliance for other purposes than stated above.
3.2. Operating principle
The appliance is equipped with its own refrigeration unit or it can be connected to a central
unit.
3.2.1. Operating switches
1 2 3
Operating panel
1. Main switch (green)
2. Light switch (orange)
3. Thermostat

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4. Operating instructions
4.1. Operation
Before putting products in the unit, wait until it has reached the temperature set with the
thermostat.
Correct cold storage of foodstuffs facilitates kitchen activities and affects energy consumption.
Please observe the following points when using the appliance:
• Do not put products in the appliance until it has reached the correct operating temperature.
• Always keep the products in good order.
• Do not unnecessarily keep the cupboard door open.
• Always keep the sliding doors of the showcase properly closed.
• Do not store spoilt food in the unit.
• Dry moisture off the shelves and interior walls as needed.
• Monitor the internal temperature of the unit daily.
• Preserve the products in dishes fitted with lids or cover them with a plastic foil. This helps to keep
the evaporator free from ice.
When placing products in the cupboard, sufficient air circulation should be ensured.
Do not place products in touch with walls.
The appliance is equipped with automatic defrost, which means that the user does not need to bother
with defrosting. In normal conditions, the thermostat need not be adjusted. In case adjustment,
however, is required, see instructions in “Installation/Temperature adjustment”.
Do not adjust temperature below + 4°C.
Warm, humid summer time may cause condensation on the exterior surfaces of the refrigerated
display. Humidity is not present inside the display, so it does not damage products.
The problem can be managed by slightly raising the temperature of the appliance. In general,
a rise as small as 2°C will considerably decrease condensation.

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4.2. After use
4.2.1. Cleaning
In normal use, the appliance does not require any other daily care than sufficient cleaning.
The interior and exterior of the appliance is mainly of stainless steel. For cleaning the interior
and exterior, use neutral or slightly alkaline cleaning agents or wipe the surfaces with a damp cloth.
Abrasive materials should not be used, especially not on acrylic surfaces.
Cleaning the appliance with a hose is forbidden. Do not either spray water in the immediate
vicinity of the appliance, because water sprayed can get into the vent holes of the compressor
cassette or into the display’s electrical connections, thus causing a hazardous situation.
The inner part of the basin can be detached without tools for cleaning.
Clean the condenser by using a soft brush nozzle to avoid damaging the condenser (units equipped with
own machinery) once a week.
The machinery does not normally require any other cleaning.
Before cleaning or maintainance work, switch off the appliance at the power supply by unplugging
the electric cable from the socket.
Other cleaning measures than the condenser cleaning should be carried out by an authorised
service company.

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5. Installation
5.1. Operating conditions
The appliance should not be placed in a location exposed to heavy thermal load, e.g. direct
sunlight or thermal radiators. Positioning cold equipment close to bains marie and ovens should
be avoided.
The appliance is designed for operarion in normal ambient conditions (i.e. termperature
+10°C to + 25°C, relative humidity max. 60 %).
5.2. Transport and storage
The appliance should be transported to the installation site in its transport package. Do not
remove package until in the immediate vicinity of the installation place.
The appliance should be transported in an upright position.
The appliance is made of polished stainless steel and of plastic/glass, so it can become
scratched very easily in site conditions. Therefore, the appliance should be delivered to the
installation site at a later stage of construction work.
It is forbidden to use the appliance as an installation base.
The appliance should not be stored outdoors, not even in its transport package.
In case the appliance has been stored in a non-heated location so that its temperature and
particularly the temperature of the machinery has fallen below 0°C, the appliance should
be kept in room temperature until the machinery temperature is at least 10°C.
Starting the cold machinery may damage the compressor.
In case the appliance has been heavily tilted just before the intended start-up, you should
wait about 30 minutes before switching the appliance on. Otherwise the oil accumulated
in the suction inlets of the compressor may damage the compressor with a hydraulic shock.
5.3. Unpacking the appliance
Remove foils protecting the stainless steel and plastic surfaces cautiously to prevent the
surfaces from getting scratched.

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5.4. Installation
The appliance is supplied with adjustable legs. Mount the appliance with the help of the adjustable
legs in a horizontal position as accurately as possible, ensuring that the appliance rests evenly on
all legs. If adjustment is not performed with great care, the door and locks may not work properly.
It is not possible to adjust an appliance fitted with wheels.
Units intended for marine use are welded in place or bolted from the mounting holes of the adjustable
legs to the deck.
5.4.1. Condenser air circulation
Ensure sufficient air inlet/air circulation for the condenser.
The display should not be installed in a place where external air flow disturbs the display’s
air circulation. Disturbance can be caused, for example, by
• positioning of ventilation equipment heat sources that radiate or blow warm air towards
the display’s front section (not either should these be located near the display ends)
.
If a refrigerated display is installed in a serving line, care should be taken that there is no
air gap between the unit and the tray slide, through which warm air could get into the
unit’s cooling air circulation (item A).
Make sure that the condenser air inlet is not blocked and that warm air can freely exit
through the front section (and cannot get back into the unit).
Condenser air circulation

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5.5. Electrical connections
Connect the appliance to the power supply with an earthed socket. For making the connection,
a socket protected with a fuse of 16 A has to be provided for each unit.
5.6. Start-up
After connecting the appliance to the power supply, turn on the main switch (green) and
make sure that the indicator light of the switch lights up. Lighting is switched on using the
orange switch.
The refregirated cupboard (cupboard modells) has a separate green switch for cooking.
When main switch is turned on, control unit’s display will show appliance’s current inner temperature.
The compressor starts operating after a short time delay.
In case you have problems with taking the appliance into use, contact an authorized service
workshop.
5.7. Temperature adjustment
The temperature of the appliance is factory set to the value appropriate for each unit. This
value should be altered on careful consideration only. Adjusting the temperature too low
(below +4ºC) may lead to rapid freezing up of the evaporator and to continuous operation
of the compressor.
The appliance is fitted with an electronic control unit for temperature and defrosting. The
temperature display panel and the operating switches are located on the upper section of
the refrigeration unit.
6. Thermostat operation
6.1. Display thermostat
3
2
4
1
1. a) To display target set point.
b) In programming mode it selects a parameter or confirm an operation
2. To start a manual defrost
3. In programming mode it browses the parameter codes or increases
the displayed value
4. In programming mode it browses the parameter codes or decreases the
displayed value
Symbols