Meling Biomedical Combined Refrigerator and Freezer Operation Manual

Applicable Product Models

The following product models are applicable:

• YCD-FL289
• YCD-EL300
• YCD-EL450
• YCD-FL450
• YCD-FL519

1. Application Notes

Thank you for choosing Meling Biomedical products. For your safe and convenient use and reasonable maintenance of the equipment, please read this Operation Manual carefully before use and keep it properly for reference.

The equipment operator may copy some chapters of this operation manual for internal use, such as instructing users on how to deal with emergencies. These chapters are clearly marked in the manual's catalog.

Meling Biomedical is not obligated or responsible for any instrument damage caused by the user's failure to use the equipment according to the instructions or the method specified by the manufacturer.

Due to the rapid improvement of Meling Biomedical products, the functions described in this Manual may be inconsistent with the products you purchased. Please refer to the physical functions.

Please read the Attention and Safety Precautions in Section 2 carefully.

• During transportation or use, avoid violent vibration or collision, and keep the equipment away from rain.
• The Combined Refrigerator and Freezer (hereinafter referred to as the equipment) can only be operated by trained and authorized personnel.
• If the operator encounters any situation not mentioned in this manual, please contact Meling Biomedical or the agent authorized by Meling Biomedical for the correct handling method.
• If the equipment is not used according to the method specified in the specification, it may be damaged.
• Try to use the accessories provided by Meling Biomedical. If users wish to use other accessories, Meling Biomedical will not be responsible for the adverse consequences caused therefrom.
• Maintenance of the equipment can only be completed by Meling Biomedical or an agent authorized by Meling Biomedical.
• Equipment must be inspected and maintained regularly to ensure good operation.
• Protective gloves must be worn.
• Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.

Warning:

• After each access, be sure to dry the water stains around the sealing strip to prevent freezing.
• Wear protective gloves when storing items in the equipment, and beware of frostbite!

Tips:

• Always use protective equipment correctly (including clothes, gloves, goggles, etc.).
• Always maintain good hygiene habits.
• Each personnel is obliged to be responsible for their own safety.
• Keep all ventilation openings in the appliance enclosure or in the structure for building-in clear of obstructions.
• Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.
• Do not damage the refrigerating circuit.
• Do not use electrical appliances inside the food/ice storage compartments unless they are of the type recommended by the manufacturer.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

2. Safety Instructions

When using this product for the first time, please pay attention to the meaning of the following warning signs and carefully read the safety precautions, so that you can use this equipment safely and correctly.

• Do not touch the equipment with wet hands to avoid electric shock. Equipment shall not be grounded through gas pipeline, water supply pipeline, telephone line or lightning rod, which may easily cause electric shock.
• This equipment can only be installed by professional technicians or after-sales maintenance personnel; it may cause electric shock or fire.
• Be sure to install the equipment on a solid and flat ground and take due care to prevent tipping over. If the ground is not solid enough or the installation location is not appropriate, it may cause the equipment to fall over and cause equipment damage or personal injury.
• Please handle the power cord carefully to avoid short circuits or open circuits. Please turn off the power before pulling out the power plug. Hold the power plug carefully and pull it out. Do not pull the wires of the power plug. Otherwise, it may cause electric shock or fire due to the short circuit.
• Don't bundle the power cord, don't press it under furniture or heavy objects, and don't get close to heat sources such as compressors.
• Please insert the power plug into the outlet tightly to ensure firmness and reliability, so as to avoid electric leakage. After installation, the power plug must be within reach, so that the power cord can be unplugged in time in case of emergency.
• Separate special outlets must be used and grounded reliably. The cross-sectional area of the copper conductor in the wall connected with the outlet must be more than 4mm². Do not lengthen the power cord without authorization to avoid heating or fire.
• Do not use the power supply that is not specified in the equipment design, so as to avoid overheating, short circuit and other faults. For example, connecting 110V rated voltage products to 220V power supply may cause faults such as overheating and equipment burning. For detailed input voltage AC please refer to Specification (Rated voltage ±10%). If the operating voltage is too low or too high, a suitable automatic voltage stabilizer must be installed for cooperative use.
• Please place the equipment stably and avoid shaking.
• Do not place the equipment in a dangerous area, and do not operate the equipment near flammable items to prevent explosion or fire accidents.
• Vents and drains are located at the bottom of the equipment. It is forbidden to place items at the bottom of the cabinet.
• Do not place the equipment in areas exposed to the sun or rain, so as to prevent danger such as short circuit or overheating.
• Do not tilt or lay the equipment sideways, and do not impact the equipment body; Refrigeration systems are installed in the equipment, which is easy to be damaged by tilt or impact.
• Please place the equipment in a dry and dust-free environment to avoid risks such as overheating and short circuit.
• In case of unexpected sound, smell, smoke, etc. when the power is turned on, please unplug the power in time and contact the manufacturer or supplier.
• Please place the equipment in a dry and ventilated environment, and ensure that the equipment vents and instrument surfaces are not blocked or shielded by walls or other objects; Do not use it in a poorly ventilated environment to prevent damage caused by heat released by equipment.
• It is forbidden to disassemble and modify this equipment without authorization, so as to avoid potential safety hazards. In this case, Meling Biomedical will not bear any responsibility for quality accidents.
• It is forbidden to put inflammable and explosive dangerous goods, strong corrosive acids, alkalis and other items unsuitable for the equipment in the equipment.
• When storing toxic, harmful or radioactive materials, please use the equipment in safe areas. Improper use may cause harm to human health or environment.
• Metal objects such as nails or iron wires shall not be inserted into any aperture and gap or any outlet of the equipment, otherwise electric shock or injury may be caused due to accidental contact between the above objects and moving parts.
• In order to ensure the normal operation and ventilation and heat dissipation of the equipment, the back, left and right sides of the cabinet body should be at least 30cm away from the wall, and the air inlet and air outlet must not be blocked by obstacles.
• This equipment must be connected to a ground wire.
• Note: Failure to observe the precautions may result in personal injury or equipment failure and related property losses.
• It is forbidden to store living animals, flowers or other items with strict temperature requirements in the equipment.
• When the equipment is running, do not touch the inner surface of the cabinet without wearing protective gear.
• Hold the handle and close the door to avoid pinching your fingers; When the equipment is not used for a long time, please unplug it and pack it for storage.
• When restarting the equipment after power failure or power off, please check the equipment settings first, otherwise the stored items may be damaged due to the change of settings.
• The equipment can be used for item preservation, not as production equipment.
• Keep the keys properly, so as to avoid accidents when children open the door accidentally.
• When handling the equipment, please be careful not to tip over the equipment, so as to prevent equipment damage or personal injury.
• When handling, it shall be lifted from the bottom, with the inclined plane not be greater than 45°, and it shall be handled with care. Please use the equipment in safe areas. Improper use may cause harm to human health or environment.

3. Precautions in Use

• Before putting items into the equipment, please confirm that the temperature in the storage chamber has reached the set value first, and then put the articles in batches. Every time you put in items, they shall not exceed 1/3 of the inner volume of the equipment so as to prevent excessive temperature rise.
• The cabinet body is provided with a test hole so as to lead out the test line from the cabinet during the test. After the test line is led out, it is necessary to plug the test hole with thermal insulation material again, otherwise the temperature inside the equipment may not reach the set value, and condensation will appear around the outside of the through hole.
• The equipment temperature display value is the temperature at the temperature sensor in the storage chamber. There is a certain gap between the displayed temperature and the actual temperature at the center of the equipment when the equipment just starts running, but as the equipment enters a stable state, the displayed temperature will gradually approach the actual temperature.
• Please use a diluted neutral cleaner to clean the equipment, and do not use brushes, acid, gasoline, soap powder, polishing agent or hot water to clean the equipment, otherwise the painted surface and plastic rubber parts may be damaged. Be careful not to wipe plastic rubber parts with volatile solvents such as gasoline.
• After a period of operation, a layer of frost will form on the inner wall and inner door of the cabinet body. Before defrosting, please take out the frozen items in the equipment and put them in an environment suitable for their storage, so as to prevent item damage due to the temperature rise in the equipment during defrosting.
• When the equipment is not used for a long time, the power supply shall be cut off.

4. Product Installation

4.1 Installation Environment

• Ambient temperature: 16°C – 32°C; the most ideal temperature is 18°C – 25°C, and the air conditioning system shall be used when necessary.
• Relative humidity: ≤80%RH.
• There is no strong vibration and corrosive gas around.
• Avoid the existence of a large amount of dust.
• Avoid rocking or shaking the equipment.
• Elevation of the working position of the equipment: less than 2000m.
• Indoor use, pollution degree 2, and overvoltage category II.
• For detailed input voltage AC please refer to Specification (Rated voltage ±10%).
• There is no direct sunlight, other cold and heat sources, and strong electromagnetic interference, which will affect the normal operation of the control system and directly damage the system in severe cases.

4.2 Installation Site

In order to operate the equipment normally and obtain the best performance level, the installation site of the equipment shall meet the following requirements:

• It cannot be installed in a narrow and closed space, and the door of the room shall not be smaller or lower than this equipment, which shall at least ensure the normal access of the equipment, so as to avoid maintenance difficulties in case of equipment failure, which may result in damage to stored items due to the failure to repair the equipment in time.
• The installation floor must be solid, flat, non-combustible, and able to bear the weight of the equipment during operation.
• It shall be with good ventilation, and direct sunlight shall be avoided.
• Check the working voltage before use. In areas with unstable voltage, consider using a voltage stabilizer suitable for equipment load to ensure that the input voltage requirements in the installation environment are met. In case of any doubt, please contact Meling Biomedical after-sales personnel for installation.
• Elevation of the working position of the equipment: less than 2000m.
• Equipment shall be reliably grounded. If the power cord outlet is equipped with a grounding wire, check whether or not the grounding is good before use. If the outlet is not equipped with grounding wire, it must be installed by professional engineers and technicians.

4.3 Preparation Before Use

• Remove the outer packaging of all products (including the protective foam in the packaging box).
• Warning: Do not put the plastic bags within the reach of children, so as to prevent suffocation accidents.
• Inventory of accessories: Please check the accessories and materials according to the packing list.
• Cleaning: Clean the product once before use.

4.4 First Power-on

When using the equipment for the first time, please follow these steps:

1. After the equipment is placed, leveled, and cleaned, it shall stand for more than 24 hours, and then be powered on to ensure the normal operation of the equipment.
2. Under no-load condition, connect the power cord to a special outlet with appropriate specifications.
3. After powering on, turn on the power switch of the equipment.
4. Check whether the operating temperature of the equipment reaches the required value, observe the normal start and stop of the equipment for more than 24 hours, and put a small amount of items in the equipment after confirming the normal performance.
5. Please store items in batches, with the items not exceeding 1/3 of the cabinet body volume each time. Ensure that the equipment is running properly after shutdown for more than 12 hours before putting in the next batch of items.
6. Try not to open the door during cooling, otherwise the temperature will rise.

4.5 Operation after Power Failure

1. The equipment has a memory function for the set value. When the power is restored after power failure, the equipment will continue to operate before power failure.
2. Once the equipment is powered off, it requires 5 minutes before it can be switched on again, so as to avoid damaging the compressor.
3. Meling Biomedical guarantees the normal operation of this equipment under certain conditions, but is not responsible for any loss or damage of stored items after power failure.

Notes:

• The transportation and movement of equipment is realized by casters.
• A special person shall be responsible for checking and recording the running status of the equipment every day (record and check once every 2-4 hours). In case of failure or shutdown, the temperature in the storage chamber will rise. If it cannot be repaired in a short time, please take out the stored items and transfer them to a place that meets the temperature requirements for storage to avoid damage to the items.
• Before putting items into the equipment, confirm whether the temperature range of the equipment meets the temperature requirement of the items, so as to avoid damage to stored items due to the difference between the settable temperature of the equipment and the required temperature of the items. Please pay attention not to block the air outlet and air inlet when putting items into the equipment.
• Due to refrigeration inertia, there is a certain difference between the actual display temperature and the set temperature of the equipment, which is a normal phenomenon.
• The equipment is an item storage equipment and cannot be used for routine production operations. It is strictly forbidden to put too many items which are relatively hot into the equipment at one time, otherwise the compressor will run for a long time and be burned due to high temperature. Items must be put in batches, so as to ensure that the storage chamber is cooled step by step until the temperature required for storing items is reached.
• Electrical appliances without production license shall not be used inside the equipment.
• Do not change the set temperature frequently in a short time, otherwise the expected setting effect may not be achieved due to the large temperature inertia. Ensure that there is a certain air circulation space around the cabinet when putting in items, especially do not block the temperature sensor in the cabinet (for collecting the temperature of the cabinet), otherwise it will affect the stability and accurate control of the temperature in the cabinet body.
• Items shall not be placed directly at the bottom of the equipment, but on the bottom shelf, otherwise the refrigeration effect of the equipment will be affected.
• When putting in items, if the moisture content of the items is too much or too little, it will affect the humidity change in the cabinet, so it is best to keep the items sealed. The humidity of the working environment will affect the change of humidity in the cabinet, especially if the door is opened too frequently and the door is not closed properly.
• Warning: Children are not allowed to play with this equipment as a game prop, otherwise the injury or loss caused therefrom will be at their own risk.

5. Component Composition

The product consists of cabinet body, door body, refrigeration system, and control system.

YCD-EL300

• Refrigerator door
• Door handle
• Door handle
• Freezer door
• Universal caster
• Cabinet body
• Door lock
• Display control panel
• Printer (optional)

YCD-EL289 (Reference for YCD-FL519)

• Display control panel
• Glass window
• Door lock
• Door handle
• Door handle

YCD-EL450 (Reference for YCD-EL450 and YCD-FL450)

• Display control panel
• Door
• Door handle
• Door handle
• Universal caster
• Door lock

Specifications:

• The YCD-FL289 freezer has six shelves, each with a capacity of 21 Kg.
• The YCD-EL300 freezer has six shelves, each with a capacity of 23 Kg.
• The YCD-EL450/YCD-FL450 freezer has six shelves, each with a capacity of 29 Kg.
• The YCD-FL519 freezer has six shelves, each with a capacity of 34 Kg.

Note: Due to product improvements and model differences, the actual products may differ from the diagrams. Please refer to the actual products. The diagrams are for functional parts description only.

6. Operating Instructions

6.1 Function Introduction

The series of products include two kinds of control systems with different adjustment methods. Please select the corresponding adjustment method according to the control system type of the preservation box you have purchased.

Type A control panel (applicable to YCD-EL300)

1. Function description of Type A control panel:

• a. Temperature display window of the refrigerator chamber, which displays the average temperature inside the cabinet body in °C under normal operation. Different prompt characters can be displayed in the setting state.
• b. Temperature display window of the freezer chamber, which displays the average temperature inside the cabinet body in °C under normal operation. Different prompt characters can be displayed in the setting state.
• c. ☑ In parameter setting mode, move to the previous parameter or decrease the parameter value. For example, when adjusting the set temperature, press this key to reduce the set temperature. When adjusting the parameter value, long press the down button, and the parameter will decrease rapidly.
• d. ⬆ In parameter setting mode, move to the next parameter or increase the parameter value. For example, when setting the set temperature, increase the set temperature value. When setting the parameter value, long press the up button, and the parameter will increase rapidly.
• e. Refrigerator setting button.
• f. Refrigeration indicator in the refrigerator chamber. The indicator lights up when refrigeration is working, goes out when refrigeration is stopped, and flashes when refrigeration is delayed.
• g. Defrosting indicator in the refrigerator chamber. The indicator lights up when defrosting is working and goes out when defrosting is stopped.
• h. Refrigeration indicator in the freezer chamber. The indicator lights up when refrigeration is working, goes out when refrigeration is stopped, and flashes when refrigeration is delayed.
• i. Defrosting indicator in the freezer chamber. The indicator lights up when defrosting is working, and goes out when defrosting is stopped.
• j. Freezer setting button.

2. Function setting of Type A control panel:

1. After powering on, the equipment can enter the working state.
2. User parameter settings: In measurement and control state, press the SET key, and the digital tube will flash and display the temperature value currently set, entering the user parameter settings state. Press ⬆ or ⬇ key to adjust the set temperature. Long press ⬆ or ⬇ key to make the set temperature value increase or decrease successively. Press SET key or no operation within 5 seconds to save parameters and return to measurement and control state.
3. On and Off: In the measurement and control state, press the Power Off key for 3 seconds to turn off the display and output control, and enter the power-off state (you can turn off the refrigerator chamber or freezer chamber separately). Press any key to turn on the display and output control, and return to the measurement and control state.
4. Parameter display:

Note: In case of high and low temperature alarm, the buzzer will sound and the digital tube will flash to display the current temperature. In data failure, sensor failure, high and low temperature alarm, when the controller is in power-on state, the buzzer will sound and will become mute when pressing any key. After all failures are recovered or 30 minutes later, the mute will fail.

Type B control panel

1. Function description of Type B control panel:

• a. Temperature display window, which displays the average temperature inside the upper refrigerator chamber and lower freezer chamber of the cabinet body in °C under normal operation (the lower chamber temperature range of YCD-EL series is -10~-26℃). Different prompt characters can be displayed in the setting state.
• b. Door opening indicator: When the refrigerator chamber door is opened, the indicator lights up. After more than 1 minute, the door opening alarm indicator light will be on and the buzzer triggered, displaying "door".
• c. Fault indicator light: When the product runs normally, the indicator light is off. The indicator light is on for operation abnormality.
• d. "LIGHT": After the equipment is powered on, the light is off by default, and the on/off of the light can be adjusted by the on/off key. When the light is out, it will be turned on by opening the door and then turned off by closing the door. When the light is on, it will keep on if you open or close the door. This equipment has two functions: automatic lighting and manual lighting. In the automatic lighting state, the lighting lamp will be on immediately when the door is opened, and the lighting lamp will be off after a 5 seconds delay. The user can also turn on the lighting lamp manually. In this case, the lighting lamp is always on (the indicator light above the key is on) without being controlled by the door opening and closing. Only when the manual lighting is turned off by pressing the light switch key again can the lighting lamp be automatically on (the indicator light above the key is off).
• e. "PRINT": The system can keep 7 days of data for printing. Press the print key to print the temperature within the set time period.
• f. ⬇ In parameter setting mode, reduce the parameter value. For example, when adjusting the set temperature, press this key to reduce the set temperature. When adjusting the parameter value, long press the down button, and the parameter will decrease rapidly.
• g. ⬆ In parameter setting mode, increase the parameter value. For example, when adjusting the set temperature, press this button to increase the set temperature value. When setting the parameter value, long press the up button, and the parameter will increase rapidly. Under normal conditions, long press the up key for 3 seconds to import the data of the USB flash drive in 1-2 months.
• h. SET/MUTE is the set/mute key. In case of no alarm state and key unlocked state, press to display the ambient temperature for 5s and then return to normal display. In the unlocked state, press for more than 3s to enter the user menu.
• When the buzzer is triggered (including cabinet including high temperature alarm, door opening alarm, sensor fault alarm, etc.) and in the button unlock state, press SET/MUTE for the first time, and the buzzer stops ringing, and the ambient temperature is displayed for 5s, after which the normal display is resumed (pressing the mute button is only to turn off the buzzer for alarming this abnormal state, for example, trouble removal, and the buzzer will be triggered next time for any abnormality). Then press SET/MUTE again, trigger the buzzer, display the ambient temperature for 5s, and then resume the display of cabinet temperature and alarm state. In the key unlock state, SET/MUTE can be used as a setting key.

2. Function setting of Type B control panel:

1. After powering on, the machine will enter the working state.
2. User parameter settings: Unlock: Under normal operation, press SET/MUTE and ⬆ key for 3 seconds at the same time, and the digital tube in the upper chamber will display "PS1" and the digital tube in the lower chamber will display the parameter code "0000". Press SET/MUTE to enter the password "0005" (when entering the user menu password, enter "0099" to restore the key lock password to the default "0005."), and unlock it. Unlock and press SET/MUTE key for 3s, and the digital tube will display the parameter code "PS1" and enter the setting and adjustment parameters.
3. Use ⬆ or ⬇ to scroll the parameters.
4. Use ⬆ or ⬇ to increase or decrease the value.
5. Use SET/MUTE to temporarily store the modified values and return to the display parameters.
6. If other parameters are modified, repeat steps 1-3.
7. Press SET/MUTE for more than 3s, save the modified parameters and return to the display parameter category.
8. Press SET/MUTE for more than 3s, or press no key in 60 seconds to exit the parameter setting program.

Quick setting of time after power on:

After the power-on self-test on the display board is completed, the quick setting menu is displayed.

If there is no operation for 60 seconds under the quick setting menu, it will automatically exit the quick setting menu and return to normal display.

4. Alarm display

6.2 Optional function

1. Printer

The printer has been installed with a paper roll at the factory. If the paper roll is used up after a long period of use, you can buy the same paper roll (size: thermal paper, paper width: 57.5±0.5mm, the outer diameter of the reel: not greater than 40mm, i.e., RM57*40 back-roll paper).

Description of printer panel:

• ① Open button. Press to open the cover.
• ② SEL button, indicator light, for factory setting. Do not press it.
• ③ Lf button. The green indicator is the power indicator and it is normally on when the power is turned on.
• ④ Paper roll

Install the paper roll:

Press the open button 1, open the cover, install the paper roll, close the cover plate and allow the head of the roll paper to slightly extend out of the cover plate.

2. Remote alarm terminal, RS485 interface and network interface

Remote alarm terminal, RS485 interface and network interface are installed in the lower part of the back of the freezer body.

Note: These configurations are standard for some models.

• Remote alarm terminal: N.O., COM., N.C.
• RS-485

7. Defrost, Discontinuation and Maintenance

Warning:

• In order to prevent people from getting electric shock or injury, please cut off the power supply of the equipment before any repairs and maintenance.
• Make sure you do not inhale drugs or suspended particles around it when maintaining the equipment, otherwise it will harm your health.

7.1 Equipment Maintenance

Defrosting: The equipment will automatically defrost during operation, which is convenient to use.

Cleaning and maintenance: The equipment should be cleaned and maintained regularly (for safety, please unplug the power plug), and the inner and outer surfaces of the cabinet body should be wiped with a warm, damp soft cloth.

Note:

• Do not sprinkle water directly on the cabinet body, lest the insulation performance of electrical components decrease and metal parts rust.
• Do not use hot water, corrosive detergent, or organic solvent to clean the cabinet body.
• Do not place heavy objects on top of the equipment, as the equipment may deform under pressure.
• The air switch on the back of the case can not only contact and open the power circuit, but also provide immediate protection in the event of short-circuit faults, severe loads and undervoltage in the power circuit, and it can also be used to start the compressor infrequently to protect the equipment.

7.2 Equipment Discontinuation

Deactivation: If the equipment is stored in an unsupervised area for a long time and not used, the power supply should be cut off, and the inner and outer surfaces of the cabinet body should be cleaned with a warm, damp soft cloth, aired, and sealed. The equipment must be locked to ensure that children cannot open the freezer door.

Scrapping: When the equipment reaches the end of its service life, it should be scrapped and must be handed over to a qualified professional recycling agency for disposal per local regulations. Non-professionals are not allowed to disassemble and break down the equipment without authorization. The scrapped equipment should be placed in a designated area inaccessible to children to avoid danger.

8. Troubleshooting and Maintenance Services

Any product may fail. Please observe the operation of the equipment in time during use. If there is any abnormality, please check and handle it according to the following table first. If the abnormality can't be changed, please inform our service center in time, and Meling Biomedical will serve you wholeheartedly to avoid losses.

Fan motor replacement time: about 6 years; Service life of the product: 10 years.

The following conditions are not faults:

1. When the compressor starts and stops, the equipment parts will make a slight impact sound.
2. When overheated items are put in after the door is opened, high temperature alarm and high humidity alarm will be triggered in the control system (if this function is available, please refer to the alarm display table).
   Solution: Put the items into the equipment after they are naturally cooled. Put the items in small quantities in batches, and do not put too much at a time. After the system runs stably, the high temperature alarm and low temperature alarm will be released automatically.
3. Slight sound of water caused by refrigerant flowing in the pipeline.

Notes:

• The equipment can only be repaired, maintained, or improved by engineers certified by Meling Biomedical, so as to ensure the normal operation of the equipment and compliance with corresponding safety standards.
• Please clean and disinfect the equipment before notifying the maintenance engineer. During the warranty period of the equipment, the Company will not undertake the warranty obligation if the fault or damage is caused by improper use by the user.
• Ambient temperature for storage: -40°C ~ +55°C, relative humidity: 10% ~ 90%.

9. Specifications

* The foaming agent of this product is cyclopentane.

10. Accessories

YCD-FL289, YCD-FL519 do not have keys.

* The specific accessories shall be subject to the physical objects received.