MEISDA SC68 Display Cooler Instruction Manual

: October 30, 2023
: MEISDA

Table of Contents

MEISDA SC68 Display Cooler
Structural Diagram
Specifications
Problems and Solutions
Problem: Abnormal operation of the compressor or has buzz sound
Problem: Compressor operates too long time and no frost on the surface of
Problem: There is frost or ice on the walls of the inner cabinet and too
Problem: The internal temperature is too high and the compressor operates

MEISDA SC68 Display Cooler

Display Cooler SC68

The Display Cooler SC68 is a refrigeration unit designed for commercial use. It has a capacity of 68 liters and operates on a rated voltage of 220V and a rated frequency of 50Hz. With a climatic class of N, it is suitable for use in environments with a storage temperature between 0°C and 10°C.

Structural Diagram

Control panel
Hinge cover
Case
Inner light
Magnetic seal
Shelf
Brace
Foot
Glass door

Specifications

Model: SC68
Climatic class: N
Storage Temperature (°C): 0-10
Anti-shock protection class: 0.8 R600a/30
Capacity (L): 68
Rated Voltage (V): 220V
Rated Frequency (Hz): 50Hz
LAMP max power(W): 10

Note: The above specifications are subject to improvements.

Safety Cautions

Dismantling the unit by non-professional staff is prohibited,it will cause hazard.

Portage and Storage

Remove the carton and packing foam (including the bottom foam) before using.
Clean the unit before using.
Adjust the foot to make the unit steady according to the ground condition to lower the shock and noise.
After moving the unit, place the unit for 30 minutes before switching it on.
After connecting the power, the unit should be kept empty for one hour.

Preparation

Running: close the door and connect the power, turn on the lamp switch on the control panel, the lamp is on. Half an hour later, the temperature inside the case lower apparently, it indicates the unit on be normally used.

Setting and Adjustment of Temperature

Check if the scale is on an appropriate position before using, frequent adjustment is not appropriate when using.
Normally in summer, the ambient temperature is high, anti-clockwise turn the knob to 2, while in winter, the ambient temperature is low, clockwise turn the knob to 4.
Position 0 represents stop running.

Storage of Articles

Do not put large amounts of articles into the unit at one time.
Leave some space around the foodstuff to let cold air inside the cabinet counter to flow.
Keep bottled articles away from the walls of interior cabinet so as not to freeze it until broken.
Do not put warm food into the unit directly until they are cooled under normal temperature. It will facilitate to lower its energy consumption and prolong service life of the compressor.

Problems and Solutions

Problem: The unit is not level

Possible cause: Adjust the adjustable legs

Problem: Too high noise

Possible cause:

Light is not on
The fastener of the unit is loose
Pipes are touching the compressor
The light is burned out

Ways to solve problems:

Fasten the loose fastener.
Carefully separate the touched pipes.
Replace the light.

Problem: Abnormal operation of the compressor or has buzz sound

Possible cause: The power voltage is out of the rated range.

Ways to solve problems:

Disconnect the power supply immediately and reconnect with it after normal voltage.
It is necessary to have a voltage stabilizer in case of poor power supply.

Problem: Compressor operates too long time and no frost on the surface of

inner cabinet

Possible cause: Refrigeration system is at fault (leakage or blocked)

Ways to solve problems: Send the unit to service department for repair.

Problem: There is frost or ice on the walls of the inner cabinet and too

low internal temperature, the compressor operates never stop

Possible cause: Thermostat does not work

Ways to solve problems: Ask service department for repair.

Problem: The internal temperature is too high and the compressor operates

never stop

Possible cause:

Bad heat dissipation and ventilation of casing, the ambient temperature is too high
Too much warm food was put in at one time
Door open frequently and long time door opening

Ways to solve problems:

Improve ventilation and lower the ambient temperature.
Take out some food.
Decrease number door opening and time of door opening.

Product Specifications

Model	SC68
Climatic class	N
Storage Temperature ( ℃)	0～10
Anti-shock protection class	Ⅰ
Capacity (L)	68
Rated Voltage (V)	220V
Rated Frequency (Hz)	50Hz
LAMP max power(W)	10
Power consumption:(kW·h/24h)	0.8
Refrigerant/Charging (g)	R600a/30

The above specifications are subject to improvements.

Problems	Possible cause	Ways to solve problems

Too high noise

| The unit is not level| Adjust the adjustable legs
The fastener of the unit is loose| ****

Fasten the loose fastener

Pipes are touching the compressor| Careful separate the touched pipes

Light is not on

| The light is burned out| ****

Replace the light

Caution: Dismantling the unit by non-professional staff is prohibited, it will cause hazard.

Problems	Possible cause	Ways to solve problems

Abnormal operation of the compressor or has buzz sound

|

The power voltage is out of the rated range.

| Disconnect the power supply immediately and reconnect with it after normal voltage. It is necessary to have a voltage stabilizer in case of poor power supply.
Compressor operates too

long time and no frost on the surface of inner cabinet

|

Refrigeration system is at fault (leakage or blocked)

|

Send the unit to service department for repair

There is frost or ice on the walls of the inner cabinet and too low internal temperature, the compressor operates never stop

|

Thermostat does not work

|

Ask service department for repair

The internal temperature is too high and the compressor operates never stop

| Bad heat issipation and ventilation of casing, the ambient temperature is too high|

Improve ventilation and ower the ambient mperature.

Too much warm food was put in at one time|

Take out some food

Door open requently and long time door opening|

Decrease number and time of door opening.

Safety Cautions

This unit uses AC220V/50Hz power, there should be a 500va stabilizer if the voltage fluctuation exceed AC198V～242V
The user should hold the plug when the power is on/off, dragging or pulling the power cord is prohibited.
Do not remove the power cord or plug
Must use dependent socket and reliable ground wire. Ground wire must not connect with the null line of the gas pipe, warm gas pipe, water pipe and must be single power
Never splash water on the unit directly.
Keep away from explosive, hazardous goods such as ether, gas, alcohol, bonding agents, gunpowder etc.
Keep away from spray of inflammables such as paints, coating materials etc.
After the unit is switched off, it should not be restarted within 5 minutes.
Do not leave the power cord under any heavy objects including the unit itself.
Do not drill holes or install other objects on the casing.
This cooler is not suitable for storage pharmaceutical products.

Portage and storage

Keep the unit vertical when carrying the unit, the angle to the horizontal line should not be over 50 °， otherwise it will damage the compressor and affect normal operation of the unit.
The unit should be place on a solid and firm ground, take away the bottom pack to lower the shock and noise.
Leave at least 20 cm of distance between the back of the unit and the wall for ventilation and leave a space with an open angle of 160 ° for the door.
Keep the unit away from heat sources and avoiding direct sunlight.
Never place the unit on a location where water can reach or with high moisture. Splashed water and dirt should be wiped off in time by using a soft cloth.
Do not place the unit in the environment cold enough to be iced.

Preparation

Remove the carton and packing foam (including the bottom foam) before using.
Clean the unit before using.
Adjust the foot to make the unit steady according to the ground condition to lower the shock and noise.
After moving the unit, place the unit for 30 minutes before switching it on. Running: close the door and connect the power, turn on the lamp switch on the control panel, the lamp is on. Half an hour later, the temperature inside the case lower apparently, it indicates the unit on be normally used
After connecting the power, the unit should be kept empty for one hour.

Setting and adjustment of temperature

Adjust the storage temperature through the temperature controller located on the back of the case(see the picture), adjust the temperature according to the ambient temperature and the foodstuff.
See the following picture about the knob scale. The temperature adjustable capacity is from “1”-“5”, adjust the storage temperature by turning the temperature controller clockwise. The higher of the number shows the lower of the storage temperature. The knob can turn freely but can’t turn clockwise from “5”to “1”. Factory setting position is on “3”.
Check if the scale is on an appropriate position before using, frequent adjustment is not appropriate when using. Normally in summer, the ambient temperature is high, anti clockwise turn the knob to “2”, while in winter, the ambient temperature is low, clockwise turn the knob to “4”.
Position “0” represent stop running.

Storage of articles

Do not put large amount of articles into the unit at one time, you should leave some space around the foodstuff to let cold air inside the cabinet counter to flow. Keep bottled articles away from the walls of interior cabinet so as not to freeze it until broken.
Do not put warm food into the unit directly until they are cooled under normal temperature, it will facilitate to lower its energy consumption and prolong service life of the compressor.

Maintenance

Disconnect the power supply before maintenance for the machine!

Keep the door gasket clean, remove it from the door and wash it. Dry and seal it as before. Putting some talcum powder on the magnetic surface would prolong its service life.
Bulb replacement： remove the lamp shade, take out the bulb, replace with a new bulb, then mount it again.
If there is heavy frost on the evaporator after long usage, take out the stuff inside the case, disconnect the power, the frost will melt automatically, clean up the water and connect the power again.
Use a soft cloth and dip some water or soap (Non-caustic, neutral detergent is also available) to clean the unit. Dry the unit after cleaning to avoid rust.
Do not use organic liquid, boiled water, washing powder or acid stuff to clean the unit. Rinsing the case by water is not allowed, don’t use hard brush, steel brush to clean the case.
If the unit will not be used for a long time, disconnect the power, clean it by following the above steps, wipe off the water inside the case with a soft cloth.

Caution

The unit is not suitable for storage of blood, pharmaceutical products and biological products
Do not place heavy articles on the top of the unit.
In case of trouble, please ask professional person for service, do not dismantle the unit without prior authority to avoid hazard.

Normal Phenomena

Sometime hear light sound of water flowing in the unit, this is the sound of refrigerant flowing inside the pipe.
the top ,and the two sides of the casing will be warm, even too hot.
In a humidity place, there is dew on the casing or the door, it can dry by dry cloth.