2018年7月16日星期一

OnlyKem CFC Free Cool Room Panels

OnlyKem CFC Free Cool Room Panels are also called cold room panels in which polyurethane foam are been sandwiched between the two outer covers. OnlyKem CFC free cool room panels are commonly used for cold room construction due to its advantageous mechanical, chemical, biological and moisture properties, Our high quality coolroom panels are excellent to prevent thermal conductivity, restrain growth of fungi, keep out moisture ingress. Onlykem is the important cool room panels manufacturers in China.
OnlyKem CFC Free Cool Room Panels specifications
NOItemSpecifications
 1Density of panel 42kg/m³
 2 Thickness of PU panel 75mm,100mm, 120mm,150mm,180mm,200mm optional
 3 PU Panel Connection Cam-lock connection
 4Surface steel Color galvanized steel or stainless steel
 5 Thickness of color steel 0.426mm,0.45mm,0.5mm
 6 Color White(Optional)
 7Fire resistance grade  B1/B2
 8Foam time 30-40minutes
9 Insulation material polyurethane(CFC free)

Cool Room Panels Production Process

The main cool room panels production process includes 6 steps.

Step 1, put the bottom steel plate, the support, the cam-lock in sequence.

Step 2, put the top steel plate and fix them together.

Step 3, put the insulation (polyurethane) material into this outer casing and then waiting the material to be frozen.

Step 4, PU panel polishing.

Step 5, Film protection and customized package.

Step 6, Uploading and transporting.

All our cold room panels production process are finished in the production line.








Cool Room Panels Production Fatures
Lightweight and modularized.
High mechanical durability.
Less construction cost.
Perfect isolation attributes.
Good thermal preservation.
Water proof, sound proof.
Energy saving and fire resisting.
Competitive in price.
The coated layers are available in profile with zinc coated, galvanized steel, embossed aluminum and stainless steel etc.
The EC/USDA international hygiene standards.

OnlyKem Pu Panel factory is equipped with automatic production lines. We had 12 years of experiences of manufacturing PU Panels with daily output up to 3,000 square meters. Welcome to visit our factory.
About OnlyKem

OnlyKem Technology Co., Ltd is one of the leading cold room and freezer room designer and manufacturer in China, who has more than 10 years industrial experience. We had provided many types of effective and states of the cold room and key parts to over 36 countries. We are not only manufacturing best quality cold room products but also providing professional cold room and key parts design and installation service. OEM, ODM, custom design and fabrication are also available.

If you have any questions or inquiries, please contact us at sale@coldroomplus.com we will reply as soon as possible

2018年7月11日星期三

Mini Cold Room

Mini Cold Room generally adopts the eccentric hook connection or the field foaming fixation of the embedded parts inside the plate wall. Our mini cold room has characteristics of good sealing, easy loading and removal, small amount of construction and installation, labor saving, good quality and quick effect. Mini cold room is equipped with advanced refrigeration units that can match the cold storage capacity. Our mini cold room features fast cooling speed, energy saving, automatic controlling system, safe and reliable operation. Mini cold room is suitable for a wide range of cold storage temperature range of -40 ℃ to 20 ℃ which can meet the needs of different uses. It is suitable for use in various industries and departments.



Characteristics of Mini Cold Room
The operation is simple, the volume is small, also it can move flexibly, convenient, etc.
The price is low and the operating cost is much lower than that of other refrigeratory stores.
A composite library board with the most advanced insulation material, polyurethane, as the core material for the small cold storage. Professional technology and excellent material selection to ensure that the system is more reliable. Inside and outside the cold room, we can select rigid polyurethane insulation sandwich panel with color steel plate, stainless steel plate, embossed aluminum plate and so on. T-plate, wall board, corner panel combined cold room can be assembled in any space, also can be made into a variety of lengths, specifications, to meet the different requirements of the majority of users. The door lock is equipped with a safe unlocking device, which can be opened even after the door lock, which effectively ensures the safety of the operator.
The main parts of Mini cold room are international famous brands, which ensure the reasonable collocation, smooth operation, good insulation performance, low energy consumption and excellent quality.
The size of Mini cold room, the storage temperature, the location of the unit, the opening of the door, the layout of the store, etc., all these can be customized according to the specific requirements of the user.
Advantages of Mini Cold Room

Because of its flexibility, short construction period, superior energy-saving effect, Mini cold room is more and more popular with users. It is the best choice to replace civil cold storage. The storage plate is filled with drawbars, which has good air tightness and heat insulation. Room body integration, with a good degree of steel, is the most advanced large-scale ultra-low-temperature storage.

The use of cold storage for a long time has a lot to do with daily maintenance, what are the methods of cold room maintenance? It is necessary to know some of this knowledge!

PU panel
PU panel is B2 fireproofing grade, B2 is best grade for keeping best insulation effect and safety.
Cam lock, very easy to install.
40-42 kg/m3 high density PU foam, It will influence the cold room life time. It can keep cold room lifetime to 20 years at least.

4.PU panels thickness: 100mm, 120mm, 150mm, 200mm. Width are 960mm or 1000mm(standard). Outer layer are color steel, stainless steel plate, thickness are 0.426mm, 0.5mm, 0.6mm or thicker .




Hinged Door
Mini cold room door size can be customized.
Window on the door, glass door and PU panels door.
Eescape device system protects people safety.
Hinges and locks are stainless steel.

Condensing Units Brand

Bitzer, Copeland, Danfoss, etc. Quality is absolutely guaranteed.







Selection of Compressor and Evaporator for Mini Cold Room

The capacity of mini cold storage is generally less than 5 tons, the refrigerant is mostly R404a. The low-temperature storage is semi-closed compressor, and the high-temperature storage is mostly closed compressor. Cold storage evaporator can be used by pipe or cold-air machine.
Mini cold room price/cost analysis

Mini cold room is a long-term customer-made cold storage style, the prices are also of particular concern. In fact, there is no accurate price, the so-called mini cold room prices are businesses accounting costs according to customer configuration requirements.

For example, if you want to build a mini freezer with an area of 2*2*2m to storage seafood and meat , voltage is 380, PU panel thinckness is 120mm, 2HP compressor, generally the price is less than $3000.

Like a fruit and vegetables storage for 2 meters long, 2 meters wide, 2 meters high Mnini cold room, the price is around $2000.

Customers are best to choose a reasonable price and good after-sales cooperation, because we do mini cold room not only to save costs, more importantly, can also enjoy good after-sales service.

OnlyKem Technology Co., Ltd.

OnlyKem Technology Co., Ltd. is the pioneer and leader of the refrigeration industry. Production and export of cold room and refrigeration equipment for more than 20 years. Our innovative, high quality products and solutions include Mini Cold Room, Walk In Cooler, Walk In Cooler Panel, Unit Cooler, Condensing Unit, etc. Product innovation and customer satisfaction are our long term commitment to all our partners.

So why not choose us? We are satisfied with all your expectations. Welcome to consult! please contact us at sale@coldroomplus.com, we will reply as soon as possible.

2018年7月5日星期四

Cold room systems

Cold room systems are basic facilities for cold storage in commercial and industrial food business, pharmaceutical field, seafood business, poultry business and some other fields. Some users know little the correct operation of cold storage room, so sometimes it will cause high power consumption, sometimes it has potentially dangerous. How to operate cold room systems correctly is very important for cold room users, it can extend its lifetime and guarantee its safety if you use or operate cold room systems correctly. The followed are some suggestions on how to operate cold room systems correctly and how to keep routine cold room maintenance. We hope these suggestions are helpful for you!
1. How to use the doors of cold room systems properly?

In order to prevent the damage of cold room doors, please open or close doors lightly.

In order to prevent the leakage of cold air, please kindly close the cold room doors quickly. If we open the cold room doors for a long time, outside hot air will enter inside of room, caused severe frost of fins, then it will have bad cooling effect.




2. How to display products properly in the cold room systems?

When we display goods in cold rooms, don’t block the suction or exhaustion port of the evaporator, please keep the suction or exhaustion port be always open, and distribute the cooling air evenly. In order to make cold air distributed well, the left, right, up and down of the goods should be 5cm distance from each other.

We often see that the suction inlet is blocked by the goods, which will reduce the intake of cold air, resulting in decrease of cooling capacity and damage of the goods.



3. Don’t put goods on top of the cold room ceiling

The ceiling panel of cold rooms is designed as non-load-bearing, and there are some refrigerant piping and electrical wiring layouts. Users are not allowed to stack goods on cold room ceiling panels in order to avoid accidental damages.



4. Keep the condenser be clean and smooth always

Poor ventilation caused high operating temperature, it will shorten the lifetime and increase energy consumption. We should keep condenser fins clean and smooth always.



5.Tips on old room defrosting:

Cold room defrosting is automatic defrosting with electric heating. When the humidity is high in summer, it is easy to freeze for the evaporator, please do not hit ice cubes with hard items, which may cause the leakage of the evaporator coil. The correct method is using warm water to remove ice cubes or increasing defrosting times appropriately



6.Maintenance and repair for the compressor:
The freezing oil level is between the upper and lower limits of the oil monitor, and the oil is not cloudy.
Using liquid sight glass to check the refrigerant charge.
3.Check the compressor oil level.
4. Check the compressor crankcase heater operation.
5. Check the main power supply and control voltage.
6. Check the appearance of the condensing
7. Check the system pressure.
8. Check the cooling system, if it has leakage.
9. Check the suction filter and liquid drying filter.
Check that all bolts, fittings and piping clamps are tight.
Inspect the condenser fan blade paddles and motor assembly for cracks, loose screws, or connection bolts.
12. Check the suction / exhaust / liquid refrigerant pressure and temperature.
13. Check the compressor’scurrent, over-heatdegrees, liquid over-cold degrees and ambient temperature.

2018年6月28日星期四

Freezer room

Freezer room (also called blast freezer, shock freezer) is a kind of cold room with lower storage temperature from -40°C to -10°C, it is equipped with more thicker doors, PU panels and more powerful condensing units than cool room. Freezer room addresses cold storage concerns of storing material reliably at consistently low temperature and fast cooling speed, so it can keep such stored products like sea food, meat or ice scream in fresh quality. The microorganism that affects the quality of food will be refrained or killed in the extremely cold environment inside freezer rooms with temperature less than -18°C. The blast freezer can be quick freezing of stored products from +70°C to -18°C in less than 4 hours to keep the food in fresh conditions. Freezer rooms are widely used in food industry like restaurants, catering unit, bakeries and ice-cream parlors, etc. Our innovative, high quality freezer rooms have the significant advantages of versatility, adaptability, energy efficiency, easy to use. Onlykem is the turn key freezer room solution supplier, all our blast freezers can be customized to satisfy your cold storage requirements with any sizes.



Specifications of Freezer Room


Components of Freezer Room




Features of Freezer Room

Customized design and installation
Flexible Configurations
Quick Freezing Technology
Compact structure
Robust construction
Energy Efficient
Easy to operate
Lower Maintenance Costs
Longer service life
Corrosive Resistant Components
Wider temperature at -36°C ~ -10°C
Temperature Control sensor ±0.2°C
Touchscreen Control Interface
Water-Cooled or Air-Cooled Condensers
120-200mm Polyurethane Foam Insulated PanelsApplications of Freezer Room

Our Successful Freezer Room Projects

Generally speaking, freezer room consists of the electric control system, condensing unit, unit cooler, freezer room door, PU Panels and other accessories. The following are some of them.
Condensing Unit
Air Cooled Condenser
Unit Cooler
Electric Control System

In recent years, we have been keeping on investing in technological innovation, integrated cold room design and modular customization, remote monitor and control system. Compared with other freezing methods, the most significant advantages of blast freezer is its safety, versatility and adaptability for various stored products like beef, chicken, shrimp, fish and other seafood. Our high quality, high performance shock freezer are widely used in milk factory, slaughter factory, supermarkets and food industry like food shops, restaurants, catering unit, bakeries and ice-cream parlors, etc.

We are always providing one stop solution to worldwide customers. All our freezer rooms can be customized for your requirements. OEM and ODM are also available.

OnlyKem Technology had been specializing in delivering turn key cold room solutions to worldwide customers for 15 years. We had provided many types of effective and states of the art cold rooms and freezer rooms to over 45 countries. Our customers are from Swiss, Sweden, Australia, USA, Canada, New Zealand, Japan, Pakistan, Spain, India, Malaysia, Singapore, Malaysia, Philippines, South Africa, Argentina, Indonesia, Kenya, Algeria, Ghana, Guyana, Mongolia, Chile, Peru, Dubai, Poland, Mexico, Brazil, Lebanon, Thailand, Kazakhstan, Turkmenistan, Bangladesh, Colombia, Bahrain, and so on. The following are some of the successful freezer room projects.

2018年6月12日星期二

Cold Room

Cold Room is helpful for commercial and industrial food business, pharmaceutical field, seafood business, poultry business and some other fields, some users don’t know correct operating methods well, so sometimes it will cause high power consumption, sometimes it has potentially dangerous. How to operate cold room correctly is very important for cold room users, it can extend its lifetime, and guarantee the safety. There are some suggestions on how to operate cold room correctly and how to keep routine maintenance as follows, hope these suggestions are helpful for you!
cold room sliding door
Cold Room
https://goo.gl/YdnnPR
1. How to use cold room doors properly?
In order to prevent the damage of cold room doors, please open or close doors lightly.
In order to prevent the leakage of cold air, kindly close the cold room doors quickly. If we open the cold room doors for a long time, outside hot air will enter inside of room, caused severe frost of fins, then it will have bad cooling effect.
2. How to display products properly? Ensure the smooth flow of outlets and suction inlets:
When we display goods in cold rooms, don’t block the suction/exhaust port of the evaporator, keep the suction/exhaustion port be open always, and distribute the cooling evenly. In order to make cold air distributed well, the left, right, up and down of the goods should be 5cm distance each other.
We often see that the suction inlet is blocked by the goods, which will reduce the intake of cold air, resulting in decrease of cooling capacity and damage of the goods.
3. We couldn’t stack goods on top of the cold room ceiling
Cold rooms ceiling panel is designed as non-load-bearing, and there are soem refrigerant piping and electrical wiring layouts, in order to avoid accidental damages, users are not allowed to stack goods on cold room ceiling panels.
4. Keep the condenser be clean and smooth always
Poor ventilation caused high operating temperature, it will shorten the lifetime and increase energy consumption. We should keep condenser fins clean and smooth always.
5. Tips on cold room defrosting:
Cold room defrosting is automatic defrosting with electric heating. When the humidity is high in summer, it is easy to freeze for the evaporator, please do not hit ice cubes with hard items, which may cause the leakage of the evaporator coil. The correct method is using warm water to remove ice cubes or increasing defrosting times appropriately
6. Maintenance and repair for the compressor:
  1. The freezing oil level is between the upper and lower limits of the oil monitor, and the oil is not cloudy.
  2. Using liquid sight glass to check the refrigerant charge.
  3. Check the compressor oil level.
  4.  Check the compressor crankcase heater operation.
  5.  Check the main power supply and control voltage.
  6. Check the appearance of the condensing
  7. Check the system pressure.
  8.  Check the cooling system, if it has leakage.
  9. Check the suction filter and liquid drying filter.
  10. Check that all bolts, fittings and piping clamps are tight.
  11. Inspect the condenser fan blade paddles and motor assembly for cracks, loose screws, or connection bolts.
  12. Check the suction / exhaust / liquid refrigerant pressure and temperature.
  13. Check the compressor’scurrent, over-heatdegrees, liquid over-cold degrees and ambient temperature.
Other notes:

1. Temperatureof machine room :

Commonly machine room temperature is below 35 °C, short-term in summer can be below 40 °C. If machine room temperature is too high, it will cause the following problems:
A. If the suction temperature and exhaust temperature increases, the cooling capacity will decrease.
B. The reduction of cooling capacity will increase power consumption and operating cost
2. Pay attention to the equipment inside the room when we display goods.
Normally the capacity of goods incoming does not exceed 20% of the total room capacity. Don’t damage water pipes, refrigerant pipes, etc.

3.Keep cleaning cold room regularly:

Keep cleaning cold rooms regularly can avoid peculiar smell in the room.
Please turn off the power switch when cleaning. Don’t let water immerse into light’s switch, evaporator junction box, etc.
Onlykem Technology Co., Ltd is the leading cold rooms and refrigeration unit designer, manufacturer and exporter dedicated in supplying finest quality cold room solutions and operating suggestions to worldwide customers. We have over 20 professional cold room experts and 8,000 square meters factory. Our innovative, high quality products and solutions include Cold Room, Unit Cooler, Condensing Unit,  Cold Room Door and PU Panel, etc. Product innovation and customer satisfaction are our long term commitment to all our partners. OnlyKem had been always worked hard to become the leader in providing customized cold room solution to meet your refrigeration demands since its foundation in 2002. Hope to be your cold room partners.

2018年6月6日星期三

Industrial Freezer Rooms

Industrial Freezer Rooms are the  facilities that use a variety of refrigeration equipment to maintain a stable low temperature for cold storage. The storage temperature of the industrial freezer room is generally from -20°C to -25°C.
Many products food such as ice cream and seafood need to be stored at a frozen temperature of -25°C without deterioration, for example, if the ice cream does not reach -25°C during storage, its aroma will be gone, the taste will be deteriorate.
Indurtrial-Freezer-cold-room
Industrial Freezer Rooms
https://goo.gl/YP3X5Y

Industrial Freezer Rooms Features

When food is put into the cold storage room, the storage temperature will gradually reach -25°C after a period of time. There is no special cold storage design process and technical requirements during this period. The storage temperature of this cold storage is between -22 °C ~ -25 °C, this is the typical cold storage temperature of the walk in industrial freezer room.
Compared with cooler room, the mechanism of action is in large difference. If temperature is too low, it will cause the death of foods such as meat and seafood cells, and the degree of freshness will be greatly affected. Therefore, for the storage of fruits and vegetables, it doesn’t mean the lower the temperature, the better.

The Applications of Industrial Freezer Rooms

Industrial Freezer Rooms are useful for store raw materials and food, frozen storage of industrial/commercial products; foods, dairy products, meat, aquatic products, poultry, pharmaceuticals, chemical raw material or performance tests for certain products used in industrial manufacturing processes.

Freezer cold room insulation system and refrigeration system

Panel system:
Our mould can produce 50mm , 75mm , 100mm , 120mm, 150mm , 200mm thickness panel.  For industrial freezer rooms , we suggest to use 120mm or 150mm thickness .
Cold storage panel sandwich use PU high pressure foaming. Taking metal materials like color steel sheet, stainless steel plate or some other materials as surface .
Generally polyurethane refrigeratory are combined refrigeratory , assembled by polyurethane panels , it can be assembled in different width and height . We have panels width take 960mm or 1000mm as module , nonstandard size can be customzed separareky.  Internal pre-embedded cam-lock , scientific design, compact installation, strong sealing, easy construction.
Cam-lock connection cold room pu panel :
Small Tips:
Different with cooler room, the foundation of the freezer room is affected by the low temperature and the moisture in the soil is easily frozen. Due to the volume expansion after the soil freezes, it will cause ground cracking and deformation of the entire building structure.
For this reason, in addition to having an effective thermal insulation layer, the floor of the low-temperature freezer room must be treated under the thermal insulation layer in order to prevent the freezing of the soil.
At present, the domestic and foreign cold storage floor heat treatment methods mainly include the following types:
First, the overhead floor. It can be divided into two kinds of high overhead floor and low overhead floor. The elevated platform is a basement below the first floor of the cold storage. The basement can be used for air temperature or other purposes. In the low-rise, the first floor is lifted by a beam-slab system or a ridge wall. No matter whether it is an overhead or low-elevation floor, the cold storage base soil is separated from the floor by an air space to cool the interior of the building. The amount will not be directly transmitted to the subsoil, but the temperature of the inter-air layer can still cause freezing damage to the subsoil.
Second, ventilated floor. In the cold storage floor below the insulation layer buried ventilation ducts.  Ventilation pipes are generally laid with cement pipes or cylinder tiles. Ventilation floor can be divided into natural ventilation and mechanical ventilation. The natural ventilation floor is based on outdoor air as the heat source. When the outdoor air passes through the ventilation pipe under the effect of hot pressure and wind pressure, it will continuously replenish the heat, so that the lower part of the insulation layer of the cold store is always maintained above 0°C.
The ventilated floor uses a method of sending steam into the ventilation ducts to increase the temperature in the lower part of the insulation layer of the cold storage.
This method is generally used during the heating season. Usually fans are used to send outdoor air into the ventilation ducts. Natural ventilation floors are generally used for cold storage in areas with short depths and high outdoor temperatures in winter. Mechanical ventilation floors are generally used for large-scale cold storage, but ventilation ducts must be organized through ventilation ducts for planned heat transfer.

Refrigeration System for industrial freezer rooms

Compressor is the most important equipment in refrigeration equipment (It often referred to as the host  refrigeration equipment) . We mainly offer original new Bitzer and copeland brand compressor.
Compressor compresses the lower pressure steam into higher pressure steam, which reduces the volume of steam and raises the pressure.  The compressor sucks in the lower-pressure working fluid vapor from the evaporator to increase the pressure and send it to the condenser.  The condenser condenses into a liquid with higher pressure. After the throttle is throttled, it becomes a liquid with a lower pressure. Low liquid is sent to the evaporator, absorbs heat in the evaporator and evaporates into low-pressure steam, and is sent to the inlet of the compressor, thereby completing the refrigeration cycle.
We provide specially temperature refrigeration equipment for industrial freezer rooms. Our engineer use professional software to calculate the design proposal  then choose the most suitable condensing unit and evaporator according to customer’s requirements. So it can save customers’ using costs while meeting customers’ refrigeration demand.

Maintenance of the industrial freezer rooms

  1. After the installing of cold storage room or reusing after long-term decommissioning, the cooling rate should be reasonable, it is advisable to control it at 8-10°C per day, and maintain it at 0°C for a certain period of time.
  2. cold storage pu panel maintenance. Please pay attention to the use of hard objects on the panels collision and scratching. Because it can cause dishing and rusting of the panels, it will seriously reduce the local insulation performance .
  3. Set with regular defrosting , change filters regularly, etc.
  4. cold storage ground maintenance, general small assembly-type cold storage floor using insulation panel, use the cold storage should prevent the floor panel from a lot of ice and water, if has ice there, cleaning must not use hard objects beat, damage the floor panel.
OnlyKem is professional cold room manufacturers , committed to design, manufacturer , and export our walk in freezer room, chiller room , blast freezer room etc.
If you have any questions or inquiries,  please contact us at sale@coldroomplus.com, we will reply as soon as possible. Choose OnlyKem , fresh life with you always!

2018年5月28日星期一

Industrial Cold Room Installation Instruction

Industrial Cold Room Installation Instruction include two main parts, insulation part and refrigeration part. Following is the installation instruction of OnlyKem cold room.
industrial cold room installation
Industrial Cold Room Installation Instruction
https://goo.gl/paXknR 

1.1 Industrial Cold room panel material

The insulation material of OnlyKem Industrial cold room is polyurethane foamed composite insulation boards with spray-coated steel plates or stainless steel plates, with different thickness for different room temperature. Insulation material is flame-retardant, non-chlorofluorocarbons. Add a certain proportion of reinforcing materials to improve performance, but will not therefore reduce the thermal insulation properties.

1.2 Industrial Cold room panel installation requirement

The seam between cold room panels must be sealed well, and the joint seam between the two panels is less than 1.5mm. At the same time, the structure is required to be solid and reliable. After assembling, all the joints of the cold room panels should be coated with a silicone sealant. Following drawing for your reference.
When the roof panel span exceeds 6m or the ceiling of the cold storage is heavy, the ceiling of the cold storage must be hanged. The position of the bolts should be selected from the middle point of the cold room panel. In order to keep the cold room panel to be as even as possible, the mushroom type screw, hanger and U-shaped channel steel must be used for fixing according to the diagram.

1.3 Industrial Cold room door

1) The door frames of low-temperature industrial cold room should be embedded with electric heating to prevent the sealing strips of the doors from being frozen. When electric heating is used, electric heating protection devices and safety measures must be provided.
2) The industrial cold room door has a door lock and the door lock has a safety unlocking function, we call it escape device.

1.Accessories

1) The interior of the warehouse is equipped with moisture-proof and explosion-proof LED lamps, which can work at low temperature. The lampshade should be damp-proof, anti-corrosion, anti-acid and anti-alkali. The degree of lighting in the industrial cold room should meet the requirements for the entry and exit of goods.
2) Pipeline holes must be sealed, moisture-proof and heat-insulated.
3) Industrial cold room should have a pressure balance device to prevent and eliminate the pressure difference between the cold room and outside.
4) Control panel requires installation near the Kumen.
5) Drainage floor drains must be installed in the freezer to allow the sewage to drain when cleaning the cold storage.

2.1 Installation of air cooler

1) The installation position of the air cooler shall be far away from the cold room door, and in the middle of the wall, the air cooler shall be kept horizontal;
2) The cooling fan is mounted on the top panel or the steel frame of warehouse, and its fixing must use a special nylon screw (material nylon 66) to prevent cooling capacity leak;
3) When fixing the air cooler with bolts, it is required to install wooden blocks with a length of more than 100mm and a thickness of more than 5mm on the top panel to increase the load-bearing area of the storage panel.
4) The distance between air cooler and the back wall is 300-500mm.
5) The wind direction of the air cooler cannot be reversed to ensure that the cooler blows outward;
6) When the refrigerator defrosts, the fan motor must be disconnected to prevent hot air from blowing into the cold room when defrosting;
7) The height of goods should be at least 30cm below the bottom of the air cooler.

2.2 The installation of refrigeration pipe

1) When installing the expansion valve, the temperature-sensing package must be fastened to the upper part of the horizontal return pipe, and ensure good contact with the return pipe. Heat insulation should be provided outside the return pipe to prevent the temperature from being influenced by the temperature of the storage tank.
2) Install the oil return bend at the bottom of the riser pipe before the chiller return pipe climbs out of the warehouse;
3) When a processing room shares a unit with a cold room or medium-temperature cabinet, an evaporation pressure regulating valve must be added before connecting the re-circulating line of the refrigerated processing room with other refrigerating or medium-temperature cabinet pipes;
4) Each cold room must be equipped with separate ball valves on the return air pipe and the liquid supply pipe for debugging and maintenance.

2.3 The installation of water drainage pipe

1) Drainage pipelines running in the cold room should be as short as possible.
2) The cold room’s drainage pipe should have a certain slope, so that the defrost water can be smoothly discharged outside the storehouse;
3) The cold storage with working temperature less than 5°C must be equipped with insulation pipe (thickness greater than 25mm) in the drain inside the warehouse;
4) Heating wire must be installed in the freezer drain;
5) Connection pipes outside the cold storage must be installed with drainage traps to ensure a certain liquid seal in order to prevent large amounts of hot air outside the library from entering the cold storage.