2019年7月29日星期一

How to Choose Walk in Cold Rooms


How to Choose Walk in Cold Rooms


Walk in cold rooms are ideal solution to keep bulks of products fresh that require maximum storage capabilities. ONLYKEM walk in cold rooms are widely used for multiple cold storage applications in the Pharmaceutical, Cosmetic, Food & Beverages, Dairy & other industries for all kinds of products intended for storage at low temperatures.

3 Comprehensive Factors Should be Considered to Choose Walk in Cold Rooms

First, 6 factors should be considered when selecting or using walk in cold rooms.
Frozen foods need be kept with different temperature in walk in cold room based on its temperature requirements. Some foods need -25 degree, some foods need -18 degree.
If possible, please do not put too hot foods into walk in cold rooms directly, it is better to wait it cool down at room temperature, then move into cold room. But frozen foods need be move into cold room as soon as possible.
In order to avoid some food’s special smell effect other food, please store them in different room or use good seal box, then put food into cold room.
The refrigerated foods should be placed on the shelf, and the foods should be stacked to allow the cold air to pass. In particular, leave some space near the evaporator and do not stack foods.
Do not open the cold storage door frequently, and avoid opening the door for a long time when entering and leaving the food. After closing the door, be sure to check if the door is closed.
The cold storage should be cleaned every day to avoid accumulation of dirt and bacteria.









Second, maintenance recommendations of walk in cold room
Check the daily inspection time, and record the change of the storage temperature twice a day in order to find abnormalities and timely repair.
The engineering department regularly cleans the dust on the condenser to maintain the heat dissipation effect.
Regular defrost. When defrosting, you need to unplug the power to melt the cream naturally. Or defrosting with water, heating, etc. it is strictly forbidden to hit hard with hard objects.
Refrigerant leakage should be checked regularly, especially the pipeline connection with oil traces. Where there is oil, it is required to check with soapy liquid.
Master the use and maintenance procedures of refrigerators, and guide employees to use refrigerators correctly.
Regularly clean the foods in the cold storage, check the inside and outside of the cold storage every day to ensure the normal operation.



Third, price composition factor.
The dimension of walk in cold rooms

The size of the cold room is a very important factor affecting the price. For example, the same fruit and vegetable fresh-keeping cold storage, the cost of 50 cubic meters and 3000 cubic meters is not the same.
The usage of walk in cold room

The price of the cold room is related to the its use, broadly speaking, it related to the storage items. The same size of cold room, the price of storing fruit is different from that of storing medicine.
Temperature and cooling time

What kind of cold rooms do you want to build? Is the low temperature cold room or the high temperature cold room? Blast freezer or normal freezer? The requirements of cold room temperature and cooling time are also important factors affecting the construction price. Blast freezer is a cold room that requires stricter requirements in the cooling time, four hours or eight hours of cooling time, the cost is also different.
Refrigeration system

Different compressor, different brand, different machine type will have different cost. Generally large supermarkets require many different refrigeration facilities, such as display refrigerator, walk in cold room, chiller and freezer etc. This kind of project mainly chose rack unit. If only need walk in cold room, normal condensing unit a good choice. Especially, we developed a new type of smart unit this year. High quality, easy installation and maintenance. If you are interested in more details, please do not hesitate, contact us directly.

2019年7月4日星期四

OnlyKem Brand Commercial Refrigeration Condensing Unit for Fish


OnlyKem Brand Commercial Refrigeration Condensing Unit for Fish


Commercial refrigeration condensing unit is the key component of cold room or blast freezer room which is commonly used for fish or fruit cold storage. The split units have limitations in terms of cooling capacity and redundancy functions, so that they can not meet the increasingly stringent requirements of the market. Commercial refrigeration condensing unit is a refrigeration unit composed of two or more compressors, which shares a set of parallel refrigeration circuit. The commercial refrigeration condensing unit is usually used in large cold storage projects, energy-saving and redundant.

At present, our commercial refrigeration condensing unit is more used for fish storage and quick freezing. Firstly, the treated fish is put into the blast freezer within 2 to 6 hours for quick freeze, then stored in the freezer room for a long term storage. Usually we use Bitzer, Turin, Frascold etc compressors (according to customer preferences), they are the famous brand in the world.








Advantage of Commercial Refrigeration Condensing Unit
Energy Saving
For example, one fish freezer room for cold storage below -18 degrees and the capacity is 1200 m3 or 2400 m3, it can be designed to change the size of multiple compressors to match the actual load more smoothly and dynamically, then to realize the optimal energy regulation of load change, improve efficiency and save energy.
Accurate pipeline design can minimize pipeline pressure loss and maximize unit efficiency.
Equipped with a high-efficiency main oil separator, it can almost completely separate the lubricating oil from the compressor exhaust port, effectively improving the heat exchanger efficiency.
Provide multi-suction branch control, according to the need, one unit can be used for multiple evaporation temperatures, effectively use the cooling temperature of each evaporation temperature, so that the system runs in the most energy-saving conditions.

Sufficient Safety Valve
The hand valve is installed at both ends of the filter. When the filter element is replaced, only the hand valve needs to be closed, no need to discharge the Freon, and the cost is saved.
Safety valves are installed at both ends of the compressor. When the compressor is maintained, only the hand valve needs to be closed, no need to discharge the Freon, and the cost is saved.
The Freon reservoir is equipped with a pressure relief valve that automatically opens the pressure relief when the system pressure exceeds the set value.
The oil reservoir is provided with a pressure relief valve, and when the system pressure exceeds the set value, the pressure relief is automatically opened to avoid the danger.

Remote Control
Password level control, the client machine can be monitored remotely to know the real-time system running status.
When the customer’s machine is in poor working condition, it can promptly remind and assist the customer to adjust the parameters to ensure that the machine is running well.
The machine can be alarmed if it fails.
Strong database information can help engineers to maintain equipment.
Good machine operating parameters and data support will help OnlyKem’s technicians to assist in machine commissioning and maintenance.
It is not necessary to go to the site to carry out machine maintenance, system parameter setting, fast and fast, and reduce the impact on production.
Patent PLC System
Automatic control of the entire cold storage system. Automatically balance the running time of each machine head, so that the unit life is extended by more than 30% compared with the single unit. Full automation, this is not only control the rack unit, but also the whole cold storage(rack unit, condenser, evaporator).
The liquid Freon can be changed into a gaseous state by heat exchange in the gas-liquid separator, and the compressor is prevented from entering the compressor and causing the liquid hammer to damage the compressor.
The liquid tank is filled with a liquid level sensor alarm, remind Freon when the liquid level of the accumulator drops to a dangerous level.
Disaster Tolerance Function

When one of the compressors in the unit fails, the other compressors can continue to work normally without affecting the storage safety of all the goods, and can be repaired separately.




OnlyKem commercial refrigeration condensing unit is an optimized combination with high efficiency, reliability, convenient installation and good performance. It is suitable for cold rooms, farms, hotels, restaurants, hospitals, etc.. Welcome to any inquiries about refrigerators or commercial refrigeration and condensation units, your support is our driving force forward.

2019年6月27日星期四

OnlyKem Freezer Condenser Unit for Supermarket


OnlyKem Freezer Condenser Unit for Supermarket


Freezer condenser unit is hot sale for supermarket in many countries, OnlyKem has many supermarket freezer projects in the US, Germany, India and Australia. According to our customer’s feedback and our engineer’s experience, we recommend box type condensing unit with American Copeland scroll compressor for supermarket freezer projects which has stable refrigeration performance, low noise and beautiful appearance, etc. The specifications and advantages are shown below.

Specifications and Advantages

Firstly, ONLYKEM freezer condenser unit is silent type unit, low noise is very important for consumers and surrounding people.

Kindly check following picture, we use axial fan motor in the condenser. The axial fan motor directly drives the advanced structure of the impeller, it is reasonable aerodynamic design, advantages are high efficient, low noise, light weight, compact structure, convenient installation and maintenance, etc.

Secondly, our freezer condenser unit is box type, customer don’t need to prepare roof protection for condenser unit.

We can supply freezer condenser unit whose shell is made with galvanized steel or stainless steel. Galvanized steel shell is enough for supermarket freezer condenser unit normally, its surface is painted with anti-rust materials to extend the lifespan and have a good-looking appearance.











Thirdly, our freezer condenser unit is modern smart packaged condensing unit, it is more intelligent and safe than normal condenser unit.
If one set condenser unit breakdowns, another set condenser unit will run automatically, no need hand switch.
Our condenser unit is hot gas defrost type, it is not electric defrost, advantage is energy saving and high efficient.
We use electric expansion valve for our system, adjustable temperature range is more wider than thermal expansion valve. Customer can use it as freezer and cooler according to their requirements.
Installation is simple than normal condenser unit, we will charge Freon and debug system at our factory before shipping to customer, when you receive it, your installer just connects indoor unit and outdoor unit with copper pipes, your engineer doesn’t need to debug system again, it reduces technical requirements.

Freezer Condenser Unit Features

Original new Copeland scroll compressor includes L type condenser, axial fan, liquid receiver, HP/LP controller, HP/LP gauge, dry filter, solenoid valve, sight glass, Check valve, junction box, etc.

OnlyKem outdoor condensing unit combines the latest compressor technology, variable speed fan motor control, large condenser coils, vapor injection which can deliver high efficiency, reliability, easy installation and sound performance. It is optimized designed and manufactured to reduce installation and maintenance costs, more efficient while making your production even more efficient and less noise impact for neighborhood. Our outdoor condensing units have various designs and come in many sizes ranging from small household appliance units to very large industrial units which are excellent suited for typical cold room service and retail applications.
Integrated modular assembly, pre-equipped refrigeration components in factory.
Streamlined housing design for a variety applications.
Full protection for internal electronic components.
High heat dissipation rate and high
More models available to satisfy your demands.
Compact structure, optimized space for room layout.
Low abrasion, long service life.
Easy and quick installation.
High quality, energy saving, easy to operate.

About OnlyKem

OnlyKem Technology Co., Ltd is the leading freezer and condenser unit designer, manufacturer and exporter dedicated in supplying finest quality freezer solutions to worldwide customers. With over 20 professional freezer experts and 8,000 square meters factory. Our innovative, high quality products and solutions include freezer room, Unit Cooler, Condenser Unit, Door and PU Panel, etc..

In recent years, we have been keeping on investing in technological innovation, integrated freezer design and modular customization, remote monitor and control system. All the safe and efficient operation of freezer in milk factory, slaughter factory, supermarkets, food shops or restaurants can be satisfied with our customized solutions by our professional staffs and solid technologies. Product innovation and customer satisfaction are our long terms commitment to all our partners.

Any requirement please do not hesitate to ask us. Hope we could serve you soon!

OnlyKem Cold Room for Sale in Australia


OnlyKem Cold Room for Sale in Australia

Cold Room for Sale is the hot sale cold storage room of Onlykem brand which is widely used to store many kinds of products such as fruit, vegetable, beer, frozen food, etc. The function of cold room for sale is to maintain a suitable and stable temperature. Let’s take the newly completed beer cold room project as an example. The temperature requirements for brewing and storing beer are very strict, which is an important factor affecting beer quality.


Functions of Cold Room for Sale

The controlled temperature in the beer production process is very important. Depending on the type of beer you brew and how you serve it, you may want to control temperatures in the 0℃ range (for storage) or you may need something closer to 10℃ (for fermentation). For storing kegs or running tap lines to your tasting room, you probably want to maintain temperatures between about 0℃ and 5℃. If you are doing all of these things, you may even need to switch between higher and lower temperatures at different stages of the process.

The trick is that you need to be able to control the temperature precisely so that you can ensure that every batch you bottle and pint you pull will be perfect. Reliable controlled cold room is important.

PU Panel for Beer Cold Room

We upgraded raw materials for PU sandwich panels. The original FC11 took the place of HCFC-141B, HCFC-141B is more environmental friendly than FC11. In a word, current PU panels are more environmental friendly than previous panels, they are not only contributed for world environment, but also healthful for beer storage inside of cold room.



Panel: Polyurethane panel tough groove dry joint with cam lock

Thickness: 100 mm

Color: White with OnlyKem film

Width: 960 mm, 1000 mm

Length: According to customer requirement, the max length is 1190 mm

Density: 44(kg/m3)

Sliding Door for Beer Cold Room

The size can be customized;

Sliding door built-in metal frame;

The edge of the door frame is provided with a low temperature resistant sealing strip;

Stainless steel hinge and door lock;

Door frame with built-in cam-lock;

Use stainless steel rails, stainless steel screw bolt.

Refrigeration Systems

Condensing unit includes New original German brand Bitzer compressor, crankcase heater, vibration absorber, air cooled condenser with large heat exchange area, axial fan, liquid receiver tank, sight glass, dry filter, solenoid valve, dual pressure switch, dual pressure gauges, oil separator, suction accumulator, etc.

Our condensing units have more complete accessories, some suppliers do not include oil separator or vibration absorber, it is not good for whole system running in long terms. In addition, we use Danfoss brand for some important components, such as Danfoss sight glass, solenoid valve, pressure gauges, it could extend long lifespan, some suppliers use other brand components for them, there is big quality difference between them.



New generation of condensing unit with Ozone friendly refrigerants, R404a;

Designed for ambient temperature of up to 52℃;

High pressure safety cut off with manual reset;

Axial fan motor, high air flow with low noise;

Air cooled condensing unit, high performance and convenient;

Over 363 PSI dry nitrogen gas pressure test after completion of the piping circuit, no leakage;

Axial fan motor, high air flow with low.

Tips of Cold Room for Sale

In order to make the air flow in the cold room, the stacking code should not be too crowded, the stack and wall stack should be kept about 1 meter. There should be about 80 cm between the top of the stack and the ceiling or ceiling duct, the distance between the stack and the evaporator should be kept at least 2 meters. The berries close to the evaporator or roof panel is liable to freezer damage.

In the same cold room, it is best to store only one kind of beer and try to avoid mixed storage of different properties.


Why Choose Us?

OnlyKem Technology Co., Ltd. is the leading cold room and refrigeration unit designer, manufacturer and exporter dedicated in supplying finest quality walk in cold room solutions to Worldwide customers. There are many projects in many different countries now, such as the USA, Canada, German, Australia, New Zealand, Mexico, African countries, Southeast Asia countries and so on. We have mature and advanced technology in refrigeration field, we have experienced engineers, OnlyKem aim to build our walk in cold room in all countries of the world!

We are professional, responsible and experienced, what are you hesitating about? Welcome to consult us! sale@coldroomplus.com.

Potato Chiller Room in Pakistan


Potato Chiller Room in Pakistan


Potato chiller room is the storage facility for potato or other vegetables that uses cooling facilities to create suitable humidity and low temperature conditions. Also known as the cold room. The potato chiller room is the place to process and store products in controlled condition. The chiller room for potato can get rid of the impact of the climate, then extend the shelf life of various products to regulate the market supply.


Potato Chiller Room
The Chiller room is mainly used for constant temperature storage of food, dairy products, aquatic products, fruits and vegetables, cold drinks, flowers, green plants, tea, medicines, chemical raw materials, electronic instruments and the like.
Chiller room is actually a kind of cold air equipment combined with low temperature. The chiller room (refrigerator) is also a kind of refrigeration equipment. Compared with the refrigerator, the cooling area is much larger, but they have the same cooling principle.

1.Characteristics of Potato Chiller Room
The main storage temperature of potatoes in chiller room is 3-10℃, and the activity of amylase in potatoes increases at 0℃, which accelerates the hydrolysis of starch into sugar and enhances the respiration of potatoes.
Relative humidity of storage environment also has a great impact on potato storage. When the air is dry, water evaporates quickly, potato skin shrinks, and the air is wet and easy to dry, which will affect the quality of potatoes.
Potato chiller room temperature characteristics: fresh potatoes on the market storage temperature 4-7℃, relative humidity 95-98%, used for processing potatoes, temperature 8-10℃, relative humidity 95-98%, seed potatoes storage temperature 0-3℃, relative humidity 95-98%.



2.Storage Methods and Management
The dormancy period of potatoes is usually 2 to 4 months after harvest and length of dormancy period varies with varieties. The dormancy period of late-maturing varieties was short and that of early-maturing varieties was long. Different maturity also affected the length of dormancy period. The dormancy period of immature potato tubers was longer than that of mature potato tubers. Storage temperature also affects the length of dormancy period. The dormancy period of potato blocks stored at a suitable low temperature is long, especially at the early stage of storage, the low temperature is very beneficial to prolong the dormancy period.
Potatoes are rich in starch and sugar, which can be converted into each other during storage. When the temperature drops to 0℃, the activity of starch hydrolase increases, monosaccharide accumulates in potato tubers, sweet potato tubers, poor edible quality and browning of processed products. If the storage temperature rises, the monosaccharide will synthesize starch. When the temperature is higher than 30 and lower than 0℃, the sweet potato core is easy to blacken.

The suitable storage temperature of potatoes is 3 ~ 5℃, but potatoes used as fried potato chips or fried potato chips should be stored at 10 ~ 13℃. The suitable relative humidity for storage is 85% to 90%. Excessive humidity tends to increase rot, humidity is too low, water loss increases, and potato tubers shrink.



3.Running under Fixed Conditions
Storage methods and management of harvested potato chips can be stacked in a cool and ventilated room, cellar or shade. Let potato chips heat and evaporate excessive moisture. Promote wound healing. Potato piles are generally no more than 0.5. The width is not more than 2 m. Ventilation pipes should be set up in proper amount in the reactor. In order to ventilate and cool down. Shade with a straw curtain. During the pre-storage period, the rotten potatoes should be checked and removed frequently, and the rotten potatoes should be handled lightly to avoid mechanical damage.
After 2-3 weeks, the skin of potatoes became aged and dry, the epidermis cells were corked, callus was formed, and the rotten potato pieces were basically selected and stored formally.
Potatoes were preserved with fruit and vegetable smoking agent after they entered the chiller room 5 g per cubic meter. It can be stored in cold storage. It can also be packed and stacked. The relative humidity is 85-90%.


Chiller Room Security Requirements
Transportation vehicles for chiller room should meet the requirements of relevant standards.
The chiller room should be reasonably partitioned and set with relevant signs to facilitate the storage, transportation and management of goods in the warehouse.
Emergency lighting, door lock and alarm device should be set up in the chiller room, which can be rescued or alarmed for help.
The shelves in the chiller room should have sufficient strength and rigidity.
There should be anti-smashing guardrails around the chiller room door, and there are eye-catching signs.
The assembled chiller room should be provided with a balance window.

2019年5月8日星期三

Cold Room Condensing Unit Refrigeration


Cold Room Condensing Unit Refrigeration


Cold room condensing unit combines the latest compressor technology which has the characteristics of variable speed fan motor control, large condenser coils, vapor injection which can deliver high efficiency, reliability, easy installation and sound performance, etc. It is specially designed and manufactured to reduce installation and maintenance costs. The cold room condensing unit is more efficient and less noise impact for neighborhood. Our condensing units have various designs and come in many sizes ranging from small household appliance units to very large industrial units. They are excellent suited for typical cold room service and retail applications. Now we are going to introduce the condensing unit with Copeland compressor.


Definition of Cold Room Condensing Unit with Copeland Compressor

Cold room condensing unit refrigeration is the core part of the cold room system. It is the important component for heat radiation of cold room.

What the most important in the condensing unit is compressor. It is called the heart of the cooling system. Compressor provides the power for the whole cold room, it makes the refrigerant cycling in the cooling system then makes the refrigeration happen.

There are many kinds of compressor can be chosen, today we will talk about the Copeland scroll compressor. Copeland is the brand of Emerson company in USA. It is famous all over the world. Copeland Scroll technology remains at the forefront of HVACR applications with its superior efficiency, reliability, ease of installation, horsepower capacity range and options in low, medium and extended-medium temperature equipment.

* Achieving energy-efficiency and sustainability goals

* Complying with food safety and environmental regulations

* Increasing efficiency, creating consistent temperatures and less humidity

* Integrating with lot technologies and building management systems

* Establishing reliable performance and affability



The condenser of condensing unit is L-shape condenser, it has a small volume but a big area so that the heat can be spread out efficiently. So the shape of this condensing unit will be box type.

*Beautiful shape

*Small volume, and it can be hinged on the wall
The Role of Condensing Unit with Copeland Compressor

As mentioned above, condensing unit is the core part of the cooling system to keep cold room system in controlled temperature.

1. Wide capacity range

Conditioning and refrigeration applications in fractional to large-horsepower capacities from 34 to 120 HP, only Copeland Scroll meets the full specifications for today’s diverse applications.

2.Technology leader in condensing unit industry

Since its introduction in 1987, Copeland Scroll has set the standard in compression technology. From modulation technologies, liquid and vapor-injection, low condensing operation to on board electronic diagnostics, compatibility with low-GWP alternative and natural refrigerants, the Copeland Scroll platform continues to lead the industry in performance-enhancing innovations.



3.Superior reliability and energy-efficiency

At the end of the day, what matters most is reliable performance and energy-efficiency. With 70 percent fewer moving parts and a simple internal suction and discharge method, Copeland Scroll delivers reliable, energy-efficient performance, year after year. Its compact and lightweight design allows to be integrated in applications where space is limited, without ever sacrificing performance or efficiency.

4. Expert distribution network and support

As the standard in scroll compression technology, Copeland Scroll is backed by a wholesaler network comprised of 850 Copeland-authorized locations with more than 340 certified Copeland technical specialists on staff. Since Copeland Scroll is manufactured in the U.S., when you need customer service, product support or availability, representatives from American base of operations can quickly deliver the compressor you need.

5.Product development expertise

When you choose Copeland Scroll compressors, you are also partnering with Emerson and gaining access to our extensive capabilities to support your product development efforts, including application engineering, design, testing, certification services, or app development.


About OnlyKem

OnlyKem Technology Co., Ltd is the leading cold room and refrigeration unit designer, manufacturer and exporter dedicated in supplying finest quality cold room solutions to worldwide customers. With over 20 professional cold room experts and 8,000 square meters factory. Our innovative, high quality products and solutions include Cold Room, Freezer 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 storage solution to meet your refrigeration demands since its foundation in 2002. Hope to be your cold storage partners.

In recent years, we have been keeping on investing in technological innovation, integrated cold room design and modular customization, remote monitor and control system. All the safe and efficient operation of cold rooms in milk factory, slaughter factory, supermarkets, food shops or restaurants can be satisfied with our customized solutions by our professional staffs and solid technologies.

We had provided many types of effective and states of the art cold 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, etc.

Any requirement please do not hesitate to ask us. Hope we could serve you soon!

Walk in Cooler Refrigeration Unit


Walk in Cooler Refrigeration Unit


Walk in cooler refrigeration unit is an essential component for cold room. The walk in cooler refrigeration unit can keep the cold room temperature between -15 degree to 10 degree. Cold room is the basic facility of restaurants, hotels, supermarkets, and any other place that needs to store fresh, frozen, or pre-cooled food products. These walk-in cold room has enclosed, refrigerated storage spaces generally smaller than 3000 square feet and can be used for things such as storing perishable food items or packaging food.









Walk-in coolers are often used as medium-term cold storage facility which are equipped with standard walk in cooler refrigeration units acting as short-term storage and refrigerated warehouses acting as long-term storage. Just like any refrigeration system, walk-in coolers use an evaporator inside the unit and a condenser outside the unit to move heat outside, thus cooling the inside.

Refrigeration is important for maintaining a proper, unbroken cold chain. Using dairy as an example, after the cows are milked, their milk is pasteurized and rapidly chilled. Once the milk has been chilled, it must be maintained at that low temperature from the farm to the grocery store, including during bottling and shipping. If the cold chain is broken, bacteria or fungus can grow, making the food unsafe for human consumption. The United States Department of Agriculture requires that business-owned refrigeration systems have an internal temperature of 40°F or below for refrigerated food and 0°F for frozen food. Businesses operating refrigerators or freezers above these temperatures face fines and other penalties, so maintaining a reliable temperature is imperative. One of the most popular types of business-owned refrigeration systems is the walk in cooler.


Indoor and Outdoor Walk in Cooler Refrigeration Unit

When it comes to walk in coolers, it’s very important to choose a refrigeration system that works best for your cold room. Since we offer models with different BTUs and KMs, as well as units designed for indoor or outdoor use, you’ll be sure to find the unit you need for the size and location of your walk in cooler.

Walk in cooler refrigeration unit have two main parts, indoor unit and out door unit. Indoor unit also called air cooler or evaporator, out door unit also called condensing unit.

When it comes to walk in cooler refrigeration unit , which part is be most concern? Compressor, yes. Our company mainly us Germany Bitzer compressor and American Copeland compressor. Different compressor have its own advantage. Except compressor, which part also very important? Yes, the coil of indoor unit and outdoor unit. Coil, also called evaporator, it was composed by copper pipe and aluminum fin.


Refrigeration Cycle System

The refrigeration cycle for walk in cooler refrigeration unit is exactly the same as residential air conditioning system. However, the operation of the physical component is slightly different. Walk in cooler refrigeration unit system is controlled by a close on rise in temperature thermostat. You will find either a mechanical type with a sensing bulb or a digital thermostat with a thermistor. Most of the walk in coolers that require repair will be older and may have been retrofitted with a digital thermostat. The thermostat of the walk-in cooler determines the air temperature within it. When the temperature rises above the level of the thermostat, the condenser unit turns on to start a new cooling cycle. The unit’s fans pull air into the unit and then over the condenser’s coils.



The coolant within the coils pulls the heat from the air as it passes over. The cooled air then continues to move out the back of the unit, cooler than it was when it first entered. As the fans continue to blow air over the condenser, the air temperature within the walk in cooler will lower until it is once again below the level set by the thermostat. The coolant within the condenser coils will be continually pumped during the cooling cycle. This ensures that the coolant does not heat up too much before being given a chance to cool down again.



Why choose us?

OnlyKem can supply the whole set of walk in cooler refrigeration unit, include indoor unit, outdoor unit and control panel etc. Our refrigeration unit have following feature:
Temperature allow customized.
Defrosting system allow customized.
Brand accessories and long time service.
Beautiful appearance and high quality.

Just contact with us to get more information about the walk in cooler refrigeration unit.