Condensing units (also called refrigeration unit, cold room unit or cold room outdoor unit) are used for refrigeration of various equipments. Main components: compressor, condenser, expansion valve, fan motor, control board, pipeline system, etc.
Compressor is the core component in condensing unit, usually called “main engine”. Refrigerant changes from low pressure to high pressure, the continuous flow and transport are all accomplished by the work of compressor.
Condensing Unit Structure
Speedway is a condensing unit manufacturer in China, produce both inverter and non-inverter condensing unit.
Our factory manufactures condensing unit 0.5~50hp, of course also can customize your requirements. Our equipments are suitable for cold room, cold storage, freezer room, container, hospital drug cold chain, seafood cold chain, cafe room, or any other commercial purpose places in where you want to cooling the space.
What’s more, we also produce Cold Room Panel, Cold Room Door, Unit Cooler (evaporator), Monoblock Refrigeration Unit, Reach-in Refrigerator, drying room panel which equipped with our condensing unit or your existing cooling system.
Warmly wish to cooperate with you.
Truck Refrigeration Unit Set
A truck refrigeration unit set keeps cargo at stable temperatures during transport, supports fresh and frozen delivery, improves cold chain reliability, and helps food, pharmaceutical, and logistics companies protect product quality on the road.
Self-Contained Refrigeration Unit
Self-contained refrigeration unit combines key cooling components in one compact system, delivers reliable temperature control, simplifies installation, and suits cold rooms, display cases, and other commercial refrigeration applications.
Semi-Hermetic Condensing Unit
A semi-hermetic condensing unit combines strong cooling performance, easy service access, and stable operation. It fits cold rooms, freezer rooms, and industrial refrigeration projects, while helping installers and contractors handle maintenance, upgrades, and long-term system reliability.
Super Low Temp Refrigeration Unit
Super low temp refrigeration unit delivers powerful cooling for deep-freeze storage, supports ultra-low temperature applications, and protects sensitive products in food processing, pharmaceuticals, laboratories, and other industries that require stable performance in extreme cold conditions.
Monoblock Refrigeration Unit
Monoblock refrigeration unit combines major cooling components in one compact package, simplifies installation, saves space, and delivers efficient temperature control for cold rooms, small freezers, and commercial refrigeration projects that need quick setup and reliable daily operation.
Inverter Condensing Unit
Inverter condensing unit adjusts compressor speed to match cooling demand, reduces energy use, improves temperature stability, lowers operating noise, and helps cold rooms and commercial refrigeration systems achieve efficient, flexible, and optimal performance across changing load conditions.
Mobile Refrigeration Unit
Mobile refrigeration unit provides flexible cooling for transport, temporary storage, and outdoor operations. It supports cold chain continuity, adapts to changing locations, and helps food, pharmaceutical, and event businesses maintain safe temperatures with convenient, reliable refrigeration performance.
Hermetic Condensing Unit
Inverter condensing unit adjusts compressor speed to match cooling demand, reduces energy use, improves temperature stability, lowers operating noise, and helps cold rooms and commercial refrigeration systems achieve efficient, flexible, and optimal performance across changing load conditions.
Refrigeration Box
Refrigeration box provides insulated cold storage for food, beverages, medicine, and other temperature-sensitive goods. It helps maintain stable temperatures, improves product safety, and supports transport, retail, and commercial refrigeration applications with practical, reliable cooling performance.
Clients Priority, Quality is Everything! We have 6 production lines for condensing unit, use world famous brand compressor and parts to ensure every unit ranked top quality.
We offer 36-month guarantee to give you more confidence in every order. You reduce maintenance risk, control after-sales cost, and protect your refrigeration projects for the long term.
With 15+ years of experience, we understand refrigeration systems, customer needs, and export requirements. We help you choose reliable condensing units and solve project challenges more efficiently.
We arrange fast delivery to help you keep projects on schedule. We also provide free spare parts to reduce downtime and support smooth installation and maintenance.
We supply directly from our China factory, which helps you save sourcing costs and communicate with us more efficiently. You get better pricing, faster feedback, and more flexible customization support.
We use sturdy wooden packaging to protect your condensing units during shipping and handling. It reduces transport damage, keeps products secure, and helps your order arrive in good condition.
We provide lifelong technical support to help you solve installation, operation, and maintenance issues quickly. Our team stays with you after delivery and supports your projects at every stage.
Inverter Condensing Unit Can Save 50% Energy and Cooling Time
Most Suitable For Voltage Un-stable Area, Never Damage Compressor
Inverter CDU Board
Custom Display
Superior Inverter Electric Board
Custom Inverter Board
Sight Glass
Filter Dryer
Oil Separator
TXV Valve
| Design | Values |
|---|---|
| High efficiency oil separator and precise oil return capillary | Reduce the amount of compressor refrigerant oil entering the refrigeration system in-order-to improve refrigeration efficiency, avoid oil-deficient operation, ensure lifetime of compressor and protect compressor safety |
| Dual electronic expansion valve | Fast adjustment response, precise storage temperature control, and high temperature protection to ensure compressor optimal operating state |
| Gas-Liquid Separator | Avoid liquid refrigerant entering the compression chamber and damage compressor when the ambient temperature and cold storage temperature are low |
| High-precision sensor | Adapt different working conditions of high or low temperature or different items stored, with temperature control accuracy of ±0.5℃ |
| High and low pressure sensor | Monitor compressor operation to effectively avoid compressor overload while ensuring the optimal compressor and refrigeration status under any conditions, and adaptively adjust the compressor and motor speed operating parameters according to the refrigerant evaporation efficiency |
| CFD air duct design 480㎜ diameter fan | Low noise, large air volume, high heat exchange efficiency |
| Brushless DC Motor with Stepless Speed Control | More energy-saving, more precise load control of the inverter unit, automatic adjustment of the speed according to load demand to ensure optimal condensing efficiency and increase cooling capacity |
| Display board can customize your company information | Customize the information based on your demand, help customers improve their market visibility, and make potential customers easier to find your company information |
| Special low back pressure (LBP) low temperature inverter compressor | High compression ratio can ensure durability, and guarantee the whole unit durable and stable under high ambient temperature and low storage temperature or low ambient temperature and low storage temperature conditions |
| Diaphragm single-way check valve design | When cold room reaches the set temperature, prevent refrigerant in the condenser flowing back into compressor and causing liquid slug to damage the compressor when it starts again |
Condensing unit mainly used for food storage, pharmaceutical storage, flowers, chemical storage, hotel industry, cold chain logistics, wine storage, seedling cultivation, supermarkets, and other industries. Meanwhile, used for the production, storage and logistics for all kinds of food, agricultural products and other commodities which needed a constant temperature environment.
Seafood
Flower
Seedling Cultivation
Chemical Material
Agriculture
Cold Chain
Pharmaceutical
Wine
Control box line color :
Red is “5”
Yellow is “7”
Green is “8”
Blue is “9”
Brown is “10”
Black is “12”
Attention: The colors only demonstrate how to connect different terminals properly, not cables’ color.
Outdoor unit: Cold room Condensing Unit circuit diagram
Indoor unit: Cold room Unit Cooler (evaporator) circuit diagram
Attention: For original whole diagram, please Contact Us freely.
No worry, our cooling capacity tonnage calculator will help you !
When you want to wholesale condensing unit,or act as a dealers.
# Firstly you should double think some questions: what is your selling market features? What is your selling channels? Who is your competitor? etc. they are very important for us before giving you the final solution.
#1 Application
If you want to cool a whole project for cold room, container (20ft/40ft), supermarket, the household split type air conditioners are not suitable. As their application areas are so different.
Application areas for condensing unit:
2hp 10~20㎡; 3hp 15~25㎡
4hp 20~40㎡; 5hp 30~55㎡
6hp 40~80㎡, etc.
(HP means Horse Power)
Due to working temperature ( high, medium, low) the application areas are different even the same HP.
So please give your drawings and all information, we will supply you the solution.
#2 Refrigerant
Different refrigerants have different prices, and most countries forbade R22 refrigerant (Not R22 compressor), so double check your market or government the related policy, don’t make big mistake.
For condensing unit or refrigeration unit, there are more refrigerants’ options, like R404/507/448/449/290a, etc. Let’s know your option or project details.
#3 Inverter or Non-inverter
Most people are puzzled by two types cooling way: inverter or non-inverter. In one word: Inverter condensing unit is more energy-saving, more stable, more bigger cooling area, better for low and unstable voltage areas. Of course, price is higher.
#4 Pricing
According to different working temperature & room size, we will recommend the most suitable & competitive refrigeration products.
What’s more, different compressors ( Copeland / Bitzer / Sanyo / Panasonic / Highly ) have different prices.
For condensing unit or refrigeration unit, you can choose from 0.5~50hp or even more.
Inverter condensing unit is higher price than non-inverter condensing unit.
#5 Reputation
Before confirming the order, should first verify the authenticity of supplier, if possible please visit the factory before purchasing
the products. What’s more, can ask some sample to test then you will have a brief understanding about this company and their managenment.
#6 Set Temperature
Different stored goods have different temperature requsts, and the cooling power is also different.
For example, frozen foods such as ice cream requires -18°C, transport of chilled meat requires -5°C, and the required temperature for fresh fruits and vegetables is also different. Especially for the cold chain transportation of vaccines and medicines, which need special temperature ＜-35℃.
Therefore, need to select suitable condensing unit or refrigeration unit according to different temperature requests.
In addition, some goods also require the refrigeration unit to have a defrosting function during transportation.
#7 Hermetic Way
Cold room refrigeration compressors can be divided into two types: semi-hermetic and hermetic due to their structure.
1) Semi-hermetic refrigeration compressor:
Adapt a wider pressure range and cooling capacity. Thermal efficiency is higher, cooling effect is more stable, and the unit power consumption is less. But the price is much expensive.
2) Hermetic refrigeration compressor:
The compressor and motor are installed in a welded or brazed shell, and share a main shaft, which not only cancels the shaft sealing device (decrease the possibility of leaks), but also greatly reduces size and weight of the entire compressor. But its price is cheaper than the semi-hermetic type.
#1 Package
Brand new condensing unit should use hard and sturdy wooden (Fumigation Free) package, firmly fixed. No broken or damage.
#2 Casing
Normally use zinc plated iron sheet, which has anti-rust function. The more even plated, the more better function of anti-rust. Of course, you can use stainless steel (SS) material, neven corrosion, but price is much higher.
#3 Component Condition
All parts should be brand new, especially the compressor, some suppliers use 2nd-hand or refurbished compressor to cheat clients, whose quality is very unstable.
#4 Welding
Qualified products will have dwell time for pressure one week or more before delivery to prevent any refrigerant leakage. Bad welding will easily leak refrigerant, made big money loss for clients.
#5 Compressor Type
Less than 3hp usually use rotary compressor ( Copeland / Sanyo / Highly ), more than 3hp use scroll compressor ( hermetic condensing unit) or piston compressor ( semi-hermetic condensing unit). Inverter condensing unit 2hp ~ 9hp all use ROTARY compressor (Sanyo / Highly).
#6 Noise
Brand new evaporator & condensing unit shouldn’t have a big noise (more than 45 dBA) when runs in 30 minutes, otherwise the compressor or fan (motor) uses poor quality, this kind of evaporator or condensing unit is not qualified.
#7 Voltage and Frequency
Condensing unit less than 3hp uses 220V normally ,but we also supply 380V. More than 3hp usually adopt 380-440V. What’s more, you should confirm your frequency , 50Hz or 60Hz, the unit price is different and misuse will damage your compressor even the whole condensing unit.
Notice: We can customize your Voltage.
Frequently Asked Questions About Condensing Unit
Condensing unit is responsible for condensing refrigerant vapor into liquid form by releasing heat, allowing the refrigeration system to remove heat from the desired space, finally cool down the room.
Speedway is committed to quality across all aspects of our business – our people, processes and products. We call this ‘the SPEEDWAY standard’.
Condensing unit receives high-pressure, high-temperature refrigerant vapor from the compressor. Refrigerant flows through the condenser coil, where it releases heat to the surrounding air or water, causing it to condense into a liquid, finally cooling the space or medium.
We welcome any sample order before big quantity purchase, that means 1pc is acceptable. For mass order quantity is 10pcs each model.
The two main types of condensers used in condensing units are air-cooled condenser, which use fans to blow air over the condenser coil, and water-cooled condenser, which circulate water to remove heat from the refrigerant.
We have own factory to produce the main refrigeration products, but we also do trading for other related products because we have resource to supply good quality and service.
Sizing a condensing unit involves determining the cooling capacity required for the specific application. Factors such as the desired temperature, ambient conditions, and the type of refrigerant will determine the appropriate capacity.
For details request please email us: sales@cn-beyond.com
Yes,we have 5 senior engineers, 13 professional r & D team, 65 professional production personnel.
Regular maintenance of condensing unit includes cleaning the condenser coil, checking and replacing air filters, inspecting electrical connections, ensuring compressor proper lubrication,etc. It’s also important to monitor and maintain the appropriate refrigerant levels (use Sight Glass).
We support payment through wire transfer, like T/T, L/C, Western Union. Also accpet Paypal payment for sample piece order.
For sure. You can send us your logo, package, design, drawing, technical specification, we will give you the final satisfied solution accordingly without additional cost !
Common issues include refrigerant leaks, compressor failures, fan motor malfunctions, clogged condenser coils, or issues with control and safety devices. Regular maintenance and Prompt Troubleshooting can help address these problems.
Yes, we did. Our factory has inner 100% inspection for each unit before loading, also can make the legal test report for each shippment. What’s more, can invite SGS / TUV / BV inspection according clients’ request, but customers should pay for the test fee.
First, we need starting the business to understand each other, if things move smoothly and you meet our “distributor request”, then we will sign the formal contract and agreement to ensure your rights in your market.
Contact our salesman for more details please.
Yes. But indoor condensing units require proper ventilation and additional considerations for air circulation and condensate drainage.
The lifetime depend on factors such as maintenance, usage, and environmental conditions. On average, a well-maintained condensing unit can last 12~15 years or more.
It’s important to follow appropriate safety measures such as disconnecting power before performing maintenance or repairs, wearing personal protective equipment (PPE), and following proper handling procedures for refrigerants to prevent injury or accidents.
Partner with us to increase your brand reputation, get an impressive experience for your clients to remember you lifelong, and help you stand out in the competitive market !
