Outdoor Condensing Unit Installation

After you finish all the procedures for choosing a suitable refrigeration system.

Including the outdoor condensing unit and evaporator unit, you must focus on choosing a good team to install the refrigeration equipment for you to make sure all the outside condensing units and evaporators cool well.

Are you having the concern that cooperates with an installation team who don’t have much experience for welding and leave some risks for the installation?

Miracle is here to provide you with a new connection method, which is called solder-free connection, or no welding connection.

This is a new but easy installation method, not much experience is required, no fire, no high temperature, fast for installation work.

And it is more reliable than welding, we did a lot of tests for keeping its safety and reliability, also the stability.

What kind of tools are you gonna use?

How do you install the outdoor condensing unit solder-free?

Please kindly click to check the details or contact us for a specific introduction.

Outdoor Condensing Unit Installation Related Products

Copper Press Tool Copper Press Fitting, HVAC Flaring Tool, HVAC Vacuum Pump, Refrigeration Manifold Gauge

Outdoor Condensing Unit used for Food Cold Room

Outdoor Condensing Unit for food cold storage is a wide application for our daily life.

For example cold storage for potatoes, cold storage for onions, cold storage for fish, cold storage for fruit, cold storage for meat, and so on.

As you can see the food that needs to preserve in the cold storage, they have different temperature range requirements.

So you can choose a high/medium/low-temperature Copeland scroll compressor outdoor unit according to the food you need to store.

Click to check more details on how to choose the economic food cold storage for yourself.

There is also some more advanced technology for keeping fresh for a long time of the food.

Except for the outdoor condensing unit, you also need the evaporator unit installed inside the food cold storage room.

You can check the specific page for choosing the suitable evaporator unit and all the refrigeration parts in the outdoor refrigeration condensing unit.

Outdoor Condensing Unit used for Mini Cold Room

The Emerson outdoor condensing unit for mini cold storage is divided into high-temperature mini cold storage.

Some people call it constant temperature mini cold storage or walk-in cooler.

And widely used for restaurants, small markets, and other places for small amounts of goods cold storage, etc.

This is very popular for self-employed businesses and some other small businesses or uses for yourself.

For a detailed application and how to gain the economic benefit, you can click to check.

At the same time, you should equip the matched evaporator unit to complete the refrigeration system.

As the complete refrigeration solution provider, we have various types of evaporators and refrigeration parts to meet your demands.

Outdoor Condensing Unit used for Walk-In Cold Room

Walk-In cold room, you can understand it from its name, which means it has at least one door and has enough space for people to walk into.

it includes the different sizes of cold rooms and different application cold rooms.

It can very small that use for a small shop or home with several cubic meters, and of course.

It can very big that use for cold storage renting business or some big cold storage workshop, supermarkets.

Wherever you will use it for your business, no matter it’s for fresh-keeping, freezer, or quick-freezing.

You can always find a suitable solution here(commercial refrigeration unit).

When you have an idea for the cold room.

Then selecting the outside condensing unit, evaporator, and refrigeration valve will be an important process to make sure the good function of your cold room.

Check the detail by clicking the page or just contact us for professional service.

Miracle will provide you long life and economic outdoor condensing unit and evaporator for the walk-in cold room.

Outdoor Condensing Unit used for Air Conditioning

An air conditioning outdoor condensing unit is a very wide application mainly used for residential buildings and commercial buildings.

You may usually see it in our daily life, and it’s more the type: 1 set of an outdoor unit with 1 indoor air conditioner for one room.

But now more and more people start to use a central air conditioning system for home to achieve a better cooling function.

It’s 1 set of an outdoor unit with several indoor air ducts for every single room.

We can provide you with 1HP, 2HP, 3HP, 5HP, and different compressor brands of air conditioning units.

For commercial refrigeration, there will be more applications, supermarkets, buildings, hotels, and so on, and it usually uses a central air conditioning system.

And of course, you can choose the main parts.

Such as manifold gauges, compressor, air conditioner valve, condenser, refrigeration evaporator, refrigeration fittings.

And other air conditioner parts to DIY your outside condensing unit and air conditioning system.

You can click to see more, and there is also a good installation method for your choice. Learn more: air conditioning installation tools.

Covers for Outdoor Condensing Unit

The cover for the outdoor condensing unit is not an essential accessory, but it does have a very important role.

For the outside home air conditioner, it has two functions, one is for protection because sometimes the outside unit installs on the ground beside the wall, people may pass every day.

So with the cover and pad can protect the people who are very near the unit when passing through it.

And it can also protect any damage from outside to the outdoor condensing unit;

The second function is for decoration, as you can see we have different types and appearances for the covers.

You can also customize it according to your house, and put some flowers on it, which make it looks very beautiful.

For commercial refrigeration, its main function is protection, protecting the outdoor unit to avoid any damage and the people passing by.

For standard outdoor condensing units, we have standard cover sizes to meet your demands, and we can also customize the sizes and types you like.

There are also different materials and colors for the cover, click to see more or contact us directly.

Condenser Fan Motor of Outdoor Condensing Unit

You may know the condenser unit expels a large amount of heat when converting the gas to liquid.

So a good axial fan has a significant role in cooling the condenser.

Otherwise, the condenser can lose its efficiency of converting the gas into a liquid.

But sometimes, the overall working process gets interrupted because of a bad fan or fan motor.

If you use a terrible fan, there will be lukewarm air, and then the condensing unit will be too hot and gradually lose its ability.

If you smell a burning odor, it’s too severe.

It must be burning something because the fan cannot cool the condenser, and it becomes overheating.

As a result, it can impact the overall process of healing.

Miracle outdoor condensing unit has a powerful fan motor to ensure the best cooling performance to cool the condenser.

From HP, Volt, RPM, or MP, you will find this is the best fan motor to ensure air flowing inside of condensing unit.

That’s because we focus on every single part of your outdoor condensing unit. You can entirely rely on our product.

Don’t forget to send your query to us right now to get more information about our product.

Does The Outdoor Condensing Unit Waterproof?

The outdoor condensing unit can withstand rain or rainfall.

It won’t be damaged.

But make sure it’s not fully or partially flooded in the water.

Otherwise, it will be herm of your outdoor condensing unit.

If not sunk in the water, you don’t have to worry about our outdoor condensing unit against rain or rainfall.

You also don’t need to cover it for winter weather because our outdoor condensing unit can endure the harshness of winter or moisture.

Should I Change And Replace My Old Condensing Unit With A New One?

If you have trouble with your old outdoor condensing unit, you will think about repairing it first.

But if you are using it for a long time and it needs frequent repairing, the cost may be near to half of a new outdoor condensing unit.

So it’s better to change it to the new one.

Because if there is a problem and you need to repair it piece by piece, does it make sense to repair your old damaged outdoor condensing unit again and again?

Remember that if you decide to replace the existing condensing unit with a new one, you should choose the non-soldering connection technology instead of welding or soldering.

Otherwise, the installation cost also will be higher with more and more problems.

If you are confused about the performance of your previous condensing and want to repair it, Miracle can be the best alternative manufacturing company for you.

You need to send us your project information to find the best suitable outdoor condensing unit for you.

How Can I Ensure The Technical Safety Of My Outdoor Condensing Unit?

Never buy a low-quality refrigerant for your air conditioner.

Because it’s the main body to expel the heat, a low refrigerant can cause leakage in the line, and it’s not easy and cost-effective to repair it.

So to ensure your air condition evaporating unit and the outside condensing unit works properly.

You should be more careful to choose a condensing unit before buying.

Your frozen evaporator coils are also a cause of the damage to your AC and condensing unit.

When it gets cold because of something wrong, it creates an ice layer which can eventually damage your air-condition and the outdoor condensing unit.

It would be best to consider whether the outdoor condensing unit is dirty or not because it’s responsible for expelling the hot air.

The function will be incredibly harmful if there is an obstacle of dirt or grime.

To maintain a good quality airflow, observe the fan is flowing without any problem because it’s also a big reason to stop your air conditioning performance.

Check if there is a faulty motor, worn belts, or dirt on the unit.

Our outdoor condensing unit also should be considered to clean and care for your air conditioning unit.

Because the outdoor unit was working well, the Air condition also will work properly.

How Long Does An Air Conditioner’s Outdoor Condensing Unit Last?

It is a common concern that you will be worried about the life of your outdoor condensing unit.

The main factors that determine the life of an outdoor unit are the condenser copper tube and the corrosion-resistant housing.

Our outdoor units use corrosion-resistant fins and copper tubes for superb service life even in coastal areas.

Normally older air conditioner and condensing unit outdoor can long last ten years, and a modern air conditioner and outdoor unit can long last between 15 to 20 years.

If you are using your old air condition for the last ten years, it’s time to check it and make sure it’s working correctly.

If a problem is broken down frequently or skyrockets your energy bills, you should choose a new condensing unit.

So don’t be rushed to make a decision choosing a condensing unit.

For your best heavy-duty and long-lasting outdoor condensing unit, Miracle manufacture the best product for you.

Please browse our product page, know about it before going anywhere else, and miss the best option.

You can send us the specification to get our expert’s help.

What Condensing Unit Should I Choose?

There is much variety of outdoor condensing units in the market.

Such as Copeland outdoor condensing unit, Tecumseh outdoor condensing unit, scroll outdoor condensing unit, etc.

Indeed, you will choose one according to your requirement, specification, or application of use.

You can inspect the capacity, user function, or quality.

For ensuring the best quality, you can look after the customer reviews, energy efficiency, warranty, features, home size, installation, and cost.

Check out each product page to learn why our customers have immensely blessed our product.

Miracle manufacture a high-quality condensing unit that adds more value to your air conditioning system.

We supply not only a great product, but also ensure the warranty and its working efficiency.

Please send us your requirement to know the appropriate outdoor condensing unit for you.

Outdoor Condensing Unit Specifications

R22 ZB series

Notes:

Copeland scroll compressor ZB series is an air-cooled high and medium-temperature outside condensing unit.

Use Copeland scroll compressor ZB series, including ZB15KQ, ZB21KQ, ZB29KQ, ZB38KQ, ZB45KQ, ZB76KQ, ZB88KQ, ZB95KQ, ZB114KQ for R22 refrigerant.

Outdoor condensing unit models from MIC-BA02M to MIC-BA06M are side blowing type appearance;

The outdoor condensing unit model from MIC-BA08M to MIC-BA15M is top blowing type appearance.

R404 ZB series

Notes:

Copeland scroll compressor ZB series is an air-cooled type outdoor condensing unit for high and medium temperatures.

Use Copeland scroll compressor ZB series, including ZB15KQE ~ ZB114KQ for R404 refrigerant.

Outdoor condensing unit models from MIC-BA02ME to MIC-BA06ME are side blowing type appearance;

The outdoor condensing unit model from MIC-BA08ME to MIC-BA15ME is top blowing type appearance.

R22/R404 ZSI Series

Notes:

Copeland compressor ZSI series is the air-cooled type outdoor condensing unit for medium and low temperatures.

Use Copeland compressor ZSI series, including ZSI06KQ ~ ZSI18KQE for R22 and R404 refrigerant.

The outdoor condensing unit model from MIC-SA02M(E) to MIC-SA06M(E) are side blowing type appearance;

The outdoor condensing unit model MIC-SA07M(E) is the top blowing type appearance.

R22/R404 ZFI Series

Notes:

Copeland compressor ZFI series is the air-cooled type outdoor condensing unit for medium and low temperatures.

Use Copeland compressor ZFI series, including ZFI20KQ~ZFI68KQE for R22 and R404 refrigerant.

The outdoor condensing unit model from MIC-FA04L(E) to MIC-FA06L(E) are side blowing type appearance;

The outdoor condensing unit model from MIC-FA07L(E) to MIC-FA15L(E) is the top blowing type appearance.

What Are The Features Of The Miracle Outdoor Condensing Unit?

we focus on how we solve your problem. So each feature is a solution to your outdoor condensing unit’s real issue.

The miracle is the name of your future generation refrigeration and air conditioning solution.

You won’t get tired of using our outdoor condensing unit.

It comes with all of the best model compressors and others types of equipment, including weatherproof construction.

The best features of the product category of our company are the large selection and range of product.

Miracle outside condensing unit is highly efficient and maximumly utilizable with an innovative core design.

It is matched with a wide range of compressor types and valve accessories and can be compatible with every commercial, industrial, or personal application.

While installing the condensing unit, you designed to use a Propress fittings technology to eliminate the soldering method.

It is super environment friendly what not only provides a leakage-free installation, also saves your time and money.

All models of compressors such a Copeland, Danfoss, or Tecumseh are here to use with it.

For your horizontal or vertical use, we have a horizontal condensing unit provided to you.

There are high power speed motors and fans for the best pressure control of the outdoor condensing unit.

We also designed our outdoor condensing unit for use with various popular refrigerants.

You can use R22, R404A, R410C, R407A, R507A, and other refrigerants with it.

Can I Get A Customized Condensing Unit?

Of course, you can. We are the ultimate supplier for any customized outdoor condensing unit or specific equipment for you.

Please send us your project information and customization details.

Our expert engineers are waiting to serve you with our 20 years of experience or manufacturing air conditioning and condensing unit products.

Outside Condensing Unit Components

All of the single parts of our outdoor condensing unit are very high quality and robust in each field.

We test all equipment several times after manufacture and before assembly.

They are AC axial fans, vibration eliminates, filter drier, refrigeration oil separator, compressor, solenoid valve, sight glasses, liquid receiver, suction accumulator, pressure controller, high and low-pressure gauge.

Please send us your project information now and let us know your requirement.

What Are The Advantages Of Using A Miracle Outdoor Condensing Unit?

We use R22, R134A, R404A, R407C, R507A refrigerant.

The temperature range of the miracle outdoor condensing unit is from +10°C to – 70°C.

It’s is super easy to operate and has automatic complete control. The installation process is straightforward.

It doesn’t require a large area to set up. A small occupation area can be ok for installation because of its tight structure.

Our Miracle super expert engineer team designed it keeping mind to save energy.

So all of our outdoor condensing units are highly efficient and energy-saving.

You have fully automatic control of this condensing unit.

Our product is the most reliable and advanced featured condensing unit because of its convenient integral installation and anti-collision facilities.

Our products have minimum and low noise, so it doesn’t bother you.

The axial fan has a powerful motor that ensures the best airflow to cool your condensing unit.

What Is The Application Or Industry That Miracle Outdoor Condensing Unit Suit?

You have a wide range of opportunities for using our outdoor condensing unit.

Of course, you can use it for Air-conditioning,

But also for some other applications such as Food Cold Room, Mini Cold Room, Walk-in Cold Room, cold storage, deep-sea fishing, ice cream production line, or ice maker, quick-freezing tunnel, and significant cooling plant.

For the sector of this application, it is very flexible to you in any comprehensive operation.

The use of applications can be Industrial or commercial use of pharmaceutical companies, chemicals, or injection molding, and agricultural industry such as food processing, aquaculture, and processing, mushroom cultivation, agricultural product processing, and dairy production.

More than that, you use in your vehicles, transportation, blood banks, poultry slaughter, supermarkets, hotels and restaurants, hospitals, garment shops, manufacturing plants, food & beverage factory, energy, and mining application.

Please send us your project details, and we will choose the suitable condensing unit for you that would be suitable and give you the best experience.

Does Miracle Specialize In Outdoor Condensing Units?

Miracle Refrigeration equipment co. Ltd is specialized in every solution and product for your central air conditioning and refrigeration.

The miracle is one of the top leading condensing unit manufacturing companies in China.

We are specialized in designing the best innovative products for efficient output.

Miracle has ISO: 9001 – 2015 quality control system certification, ensuring the right quality for our clients.

We have more than 20 patents on some excellent innovative products on refrigeration and air conditioning.

That indicates the ability of our designing and manufacturing capacity.

What Are the Outdoor Condensing Unit Types Supplied By Miracle?

We have various types of air-cooled condensing units for your outdoor.

We have different well-known brand compressor models in different types of condensing units.

Such as a Copeland scroll compressor with box type’s outdoor condensing units.

There are Outdoor condensing unit MIC Series S types, Outdoor condensing unit MIC series T Types.

We have a Danfoss compressor model used to Danfoss Scroll Compressor Box Type Condensing Units.

Here we have Outdoor Condensing Unit MID Series S Type and Outdoor Condensing Unit MID Series T Type.

Copeland Scroll Compressor Box Type Condensing Units New type also used Copeland model compressor.

We have these new Outdoor Condensing Unit MICN Series S Type and Outdoor Condensing Unit MICN Series T Type.

We have Copeland, Piston Compressor, Bitzer Piston Compressor, Rotor Compressor, and others for your scroll compressor.

Do You Have Support For Your Customer Installing The Product After Delivery?

Sure, we have a strict policy on producing quality condensing units but a flexible policy on serving our customers.

Our before sales service includes assisting you in finding the best condensing unit according to your project, application, and other technical requirements.

We also take care of your customization requirements here and provide a machinery test report with it.

In our after-sales service, the Miracle team ensures the warranty service and the procedure-related this.

Video outgoing inspection and warranty services are provided by technical video support.

So you don’t have to worry about our After-sales Service Provided. Please feel free to share your project details with us to know more about how our service can solve your problem.

Outdoor Condensing Unit Compressor Technical Analysis

Emerson Copeland compressors are used in various freezing and refrigeration equipment.

According to different needs or using different refrigerants, various temperatures required for fruit and vegetable preservation, food quick freezing or cold storage can be obtained.

Copeland compressor outdoor condensing units can be widely used in various industries such as commerce, tourism, service industry, food industry, medicine, and chemical industry.

Working Principle of the Scroll Compressor

The scroll compressor is a positive displacement compressor, and the compression component is composed of a movable scroll and a fixed scroll.

Its working principle is to use the relative orbital motion of the moving and static scrolls to form a continuous change of the enclosed volume to achieve the purpose of compressing a gas.

The simple concept of the vortex was first invented in 1905.

The pressure of the scroll compressor is produced by the interaction between the movable scroll and the fixed scroll.

The scroll is an involute spiral, which meshes with the matching scroll as shown in the figure above to form a series of gradually expanded space that exists between the two components.

When compressed, one scroll remains stationary (fixed scroll) and the other scroll (orbiting scroll) is allowed to make planetary motions around the stationary scroll.

When this movement occurs, the space between the two disks is slowly moved to the center of the two scroll disks, and at the same time the volume is reduced, and the gas is forced into smaller and smaller spaces.

When space reaches the center of the scroll, the high-pressure gas is discharged through the Exhaust vent located in the center.

In the scroll compressor, the three working processes of suction, compression, and exhaust are carried out at the same time during one rotation of the main shaft.

The outer space is connected to the suction port and is always in the suction process.

The inner space is connected to the exhaust port. In the exhaust process.

During the compression process, the 6 gas channels are in different compression stages, forming a very smooth compression process.

So the suction process (outer part of the scroll) and exhaust process (inner part) are continuous.

Advantages of Technical Characteristics

A: High volumetric efficiency: When the compression ratio is 1-4, the compressor volumetric efficiency is higher than 90%, and when the compression ratio is 4-7, the volumetric efficiency is higher than 80%.

With the same capacity, the displacement is small.

It can be roughly understood that the capacity of the Copeland 3HP compressor is comparable to the capacity of other compressors (greater than 3HP).

B: Unidirectional airflow, low heat loss, high isentropic efficiency;

low airflow speed, when the refrigerant flows inside the compressor, the local loss is small, reducing energy consumption;

C: Stable performance curve: improve the seasonal energy efficiency ratio (compressors can operate well under various working conditions);

Reduce low-load cycle start/stop;

Strong performance in high-temperature environments;

Strong performance under high compression;

D: Flexible axial and radial seals:

The flexible seal design has a better sealing effect and can be adjusted according to actual operating conditions.

For example, when the compressor has a liquid hammer, oil hammer, and abnormal pressure, the compressor is flexible.

It will separate the moving and static scrolls and effectively prevent damage to the compressor scrolls;

By pressurizing the fixed scrolls to ensure the axial seal between the moving and static scrolls.

When the pressure of the scroll compression chamber inside the body is greater than the applied pressure.

The axial seal between the moving and static disks will fail, which can effectively protect the scroll disk;

E: Built-in protection device:

Built-in motor short-circuit protection (temperature and current): when the low voltage or missing items, the protection device will act;

Floating seal: to ensure the volumetric efficiency of different compression ratios;

Pressure relief valve: high-pressure protection;

Exhaust temperature protection: leakage of working fluid and carbonization of refrigerant oil;

Shut-off valve and reverse protection: reduce shutdown noise;

Unload start: stop and start again as unload start, which greatly reduces the probability of motor burnout;

The Composition and Meaning of the Copeland Scroll Compressor Model

Copeland Scroll compressors start with the letter “Z”.

The second letter is the application range of the compressor (the letter “B” means medium-high temperature, “S” means medium temperature, and “F” means low temperature).

The third and fourth letters indicate the first two digits of the Copeland compressor workload under standard rated conditions.

And the fifth letter is the multiplier provided by the workload (where the letter “C” = 100, “K “=1000, “M”=10000).

The sixth letter is the model generation of the Copeland compressor.

The seventh letter is used to indicate the refrigerating oil used in the compressor.

If there is no seventh letter, it means that the compressor contains mineral oil.

If it is the letter “E”, it means that the compressor contains lipid oil.

The eighth letter is the phase power supply, the ninth letter is the motor protective method, the tenth letter is the voltage code, the last letter is the compressor configuration code.

For example Copeland scroll compressor model: ZB76KQE-TFD-551

Z means Copeland scroll compressor

B means the medium/high-temperature application

76 means the capacity

K means compressor workload

Q means the development code

E means Lipid oil if without, means mineral oil

T means 3PH, 380V, if it’s P, means 1PH, 220V

F means built-in midpoint protection, if it’s w, means external electronic protection

D means 380/420V, 3PH, 50hz or 460V, 3PH, 60HZ.

If it’s J, means 220/240V, 1PH, 50HZ or 265V, 1PH, 60HZ

551 means solder connection with sight glass and needle valve, 524 means welding connection, 558 means welding connection with sight glass, 559 means solder connection with sight glass.

Common Problem Analysis and Solutions of Outdoor Condensing Unit

Problem: Bad Oil Return in the Unit System

Trouble phenomenon:

After the compressor is disassembled, the moving and static disks are intact, the motor winding values are normal, and the amount of remaining refrigerating oil is generally low, and the oil quality is average;

The moving plate and the crankshaft are stuck, after removing the moving plate, the moving plate, and the bracket the sleeve is severely burned; the lower sleeve is intact.

There is an oil pump on the crankshaft and the installation is firm.

Problem analysis:

From the point of view that the driven plate and the crankshaft are stuck, the compressor failure is caused by poor oil return in the system.

Due to the poor oil return of the system, the compressor lacks oil and cannot deliver enough refrigerating oil to the lubrication parts, which makes the bottom-up dry friction of each lubrication part (sleeve) intensified in turn, causing the moving disc and crankshaft to jam in a short time.

The poor oil return of the system generally manifests in two situations: one is when the compressor is running, the refrigerating oil is discharged into the system by the compressor after a long time, the oil cannot return to the compressor so that the refrigerating oil inside the compressor is continuously reduced.

The compressor is short of oil; the other is that when the compressor is running, the oil return is not continuous, but intermittent, especially when the compressor is just started or the working condition is in a transitional process, the oil returning to the compressor will be too much for a while It will be less for a while, and the oil will not be returned for a long time after the oil return is completed.

There are many reasons for poor oil return, such as a clogged capillary tube, blocked oil return hole in the liquid storage cylinder, unsuitable hole size, or system overload operation, or system lack of oil due to leakage.

Problem: Does the Compressor Run Short of Fluorine?

Trouble phenomenon: After the compressor is decomposed, the inner cavity is scorched and the quality of the remaining refrigerating oil deteriorates;

There are obvious high-temperature discoloration marks in the center of the moving and static plates, the O-ring is aging, and the motor is burned.

Problem analysis: From the situation that high temperature of the driven and static disks occurred in the center and the O-ring carbonization and damage were analyzed.

This is a fluorine-deficient operation phenomenon.

Due to the fluorine-deficient operation, the temperature of the center of the compressor’s moving and static plates is getting higher and higher, the expansion and deformation are getting bigger and bigger, causing hard friction, and the temperature is getting higher and higher.

Therefore, the refrigerating machine oil is carbonized, causing the inner cavity to burn, and the O-ring is aging and damaged.

In severe cases, the moving and static disks may be stuck or broken.

Due to the hard friction or jamming of the moving and static disks, the motor generates a large current.

Under the action of a large current, the IP frequently opens and closes, which eventually leads to the failure of the IP contact adhesion.

Vacuum Operation?

Trouble phenomenon: The compressor electric winding value is normal; the insulation resistance is above 500MΩ, and the remaining refrigerating machine oil is of poor quality, which is black; the exhaust pressure is low during idling.

After the compressor was decomposed, it was found that the O-ring was damaged due to high-temperature aging, the sealing ring at the end of the moving disk, and the static disk was melted, and the contact surface of the moving disk and the bracket had serious pressure and wear marks.

Problem analysis: The high temperature of the driven and static disks occurred in the center and the O-ring aging and damage were analyzed.

This is a typical vacuum operation phenomenon. Due to the vacuum operation, the temperature of the center of the compressor’s moving and static plates rises rapidly.

When the temperature reaches about 300°C, the end seal ring will melt, the refrigerating machine oil will be carbonized, and the O-ring will be aged and damaged.

As the end sealing ring melts, pressure leakage will occur, resulting in insufficient exhaust pressure.

In severe cases, the excessively high temperature in the center of the scroll will cause abnormal expansion of the scroll, resulting in severe grinding marks on the contact surface of the moving plate and the support.

Under normal circumstances, the vacuum operation will be damaged for about two minutes.

The end seal ring melts due to the vacuum operation, and the melted end seal ring adheres to the walls of the moving and static disk scrolls, which increases the friction between the moving and static disk scrolls. Large, causing the compressor to not start.

The reasons for the vacuum operation of the compressor are generally: in the production line and the air conditioner is under maintenance, the air conditioner is powered on without opening the suction valve or plugging in the suction pipe quick connector during the trial operation.

Use the compressor to directly vacuum the pipeline system or operate without opening the low-pressure valve.

Wiring Error?

Trouble phenomenon: The inner cavity is clean, the amount of remaining refrigerating oil is normal, and the oil quality is good;

The moving and static disks are intact, and the motor winding wire is fused, the two winding values are abnormal, and the IP is decomposed, and the IP heating wire is found to be melted.

Problem analysis: Judging from the normal amount of remaining refrigerating oil in the compressor and good oil quality, the compressor may not have been running for a long time, and it could not start and run normally before the failure.

The current through the motor is large, causing the IP to trip. After the IP trips, a large current still flows in the M and S winding of the motor, which will eventually burn the outer insulation layer of the magnet wire and cause the winding value to be abnormal.

The Power Supply Voltage is Too Low?

Trouble phenomenon: The remaining amount of refrigerating oil is normal and the oil quality is good; the moving and static disks are intact, and the motor winding wire is fused; the motor winding value is abnormal.

Investigate the IP and find that the IP contacts are stuck and cannot be disconnected.

Problem analysis: Judging from the normal amount of remaining refrigerating oil in the compressor, good oil quality, and IP contact adhesion, the compressor may not have been running for a long time, and it could not start and run normally before the failure.

At this time, the current through the motor is large. , Causing the IP to open and close frequently, and eventually causing the contacts to melt and stick, leading to IP failure.

After the IP fails, the winding binding wire of the motor is burnt under the action of high current, and the outer insulating layer of the magnet wire is burned, causing some winding to be short-circuited, causing abnormal winding values.

The reasons for the compressor failure are: the voltage is too low and the compressor cannot start to run. There are also wiring errors or breakdowns of operating capacitors.

Foreign Matter Enters the Compressor

Trouble phenomenon: The compressor has a loud noise when it is running idling.

After decomposition, cracks are found in the moving and static disk scrolls.

After the upper cover is decomposed, the solder is found in the oil separator.

Problem analysis: The solder particles enter the compressor’s compression cavity, which causes cracks in the moving and static disk scrolls during the extrusion movement.

As for the source of the brazing filler metal, when the compressor suction pipe is welded to the air conditioning piping, due to the long heating time and insufficient pipe insertion depth, the filler will flow down the gap between the two pipings, forming filler particles and staying there.

At the bottom of the suction, the solder is sucked into the compressor when the compressor is started.

The Quality of the Materials Used in the Compressor is Out of Control, etc.

Trouble phenomenon: After the compressor is disassembled, the moving and static disks are intact, the motor winding values are normal, the amount of remaining refrigerating oil is normal, and the oil quality is good;

The moving disk and crankshaft are stuck, after removing the moving disk, the moving disk bushing and crankshaft Severe burns;

Sometimes there are marks on the lower sleeve.

There is an oil pump on the crankshaft and the installation is firm.

Problem analysis: The shaft and sleeve are severely worn, which is caused by problems in the selection of the shaft and sleeve or the material quality is out of control.

In addition, the driven disc and the crankshaft are stuck for analysis.

When used for a period of time, the stress generated in the production is not eliminated or the quality of the compressor barrel wall cannot maintain the normal operation of the compressor’s internal motion pair at good rigidity and strength, causing Out-of-tolerance changes to occur in the fitting accuracy and form and position tolerances of the compressor, causing the shaft to jam, causing serious wear of the shaft and the bearing bush.

Solutions of Outdoor Condensing Unit

In summary, we should take measures and countermeasures in the following aspects:

A: Strict accordance with the product specifications of the compressor, set up exhaust thermocouples, high and low-pressure protectors, etc. according to the standard requirements.

Exhaust thermocouple: To prevent the compressor from abnormally increasing the exhaust temperature due to overload or lack of fluorine, please install it within 30 cm of the exhaust pipe outlet.

The exhaust thermocouple is set at the upper-temperature limit (exhaust port temperature, exhaust temperature) that does not exceed the temperature at the exhaust port 125°C. Reference value: 123.5 ± 0.5°C.

The low-pressure switch is to prevent the compressor from running at excessive low pressure.

Please use a low-pressure pressure switch that operates at a low pressure of O Mpa (0kgf / cm2) or higher. Reference value: 0.02 ± 0.02MPa.

Reverse protection device: As this compressor will cause malfunctions due to reverse rotation, it is absolutely not allowed to reverse, so please install a reverse protection device that detects reversal.

High-pressure pressure switch: When the high-pressure pressure rises abnormally, the compressor needs to be stopped, and the high-pressure pressure switch for the selected action is specially set. The reference value: 2.9～3.0MPa.

B: Strengthen the training of installation staff and production line staff, install the scroll compressor in strict accordance with the process requirements, fully protect the refrigerant piping during installation to prevent the entry of moisture, dust, and impurities, use a vacuum pump to vacuum, and prohibit the use of refrigerant discharge methods.

Drain the air in the indoor unit duct.

When connecting the connecting parts of copper pipes, Miracle’s solder-free connection tools will make the connection safer and more efficient. For details, please refer to How to joint copper pipe.

C: Compressor manufacturers should strengthen quality control, especially strengthen the management of outsourced parts, carry out full inspection work, and strictly control the quality of outsourced parts.

How Would Be The Packaging Of The Products?

We can prepare the best quality packaging because of its suitable structure and lightweight compared to others.

We go through a completely secure and convenient packing and transportation process to ensure you receive it safely. So you don’t have to worry at all.

Are You the Manufacturer of the Outdoor Condensing Units?

Yes, Miracle has more than 20 years of experience in manufacturing the outdoor condensing unit, now we have many customers from the domestic market and overseas market.

Can You Design the Outdoor Condensing Unit According to Our Project Requirements?

Yes, of course, that’s what we do. Miracle is the refrigeration solution provider, we devoted ourselves to designing the most suitable outdoor condensing unit for your refrigeration system.

Can I Choose Another Brand Scroll Compressor Other Than the Emerson Copeland Scroll Compressor?

Yes, any brand scroll compressor is available, Copeland and Danfoss are widely used, just we want to explain Copeland outdoor condensing unit well on this page, we have another page for other brands scroll compressor.

Can I Buy the Refrigeration Parts of the Outdoor Condensing Unit Separately?

Yes, of course. Miracle is not just providing the complete refrigeration solution, also provides all of the refrigeration parts you need for the refrigeration system, no matter the outdoor condensing unit, condenser, evaporator, or even the refrigeration valves, controllers, check other pages on our website or contact us for details.

Can You Provide the Whole Refrigeration Solution for My Cold Room Project Or Air Conditioning Project?

Yes, no problem. We have 20 years of experience in providing a solution for refrigeration projects, for the whole line, even include the installation method.

Can You Customize the Box of the Outdoor Condensing Units for Us?

Yes, we have some types for your reference, if you have other demands, just contact us.

Can I See All the Main Parts of the Outdoor Condensing Unit Before We Confirm the Order?

Yes, that’s our standard service. We will give you a list for showing all the main parts for the outdoor condensing unit when quotation, make sure you know well about what kind of outdoor condensing unit you will get.

How Long Time for the Production of the Outdoor Condensing Unit?

It depends. If you use Copeland compressor outdoor condensing unit with common type, and no other special requirements,15-20 days is OK, we normally have stock for compressors. But if you use a compressor that not commonly use, and the voltage and frequency are special, it will be longer,30 days more or less.

Can You Arrange the Container for All of My Products Includes An Outdoor Condensing Unit for Delivery?

Yes, we have good forwarder partners that also have 20 years’ experience for delivery by sea, by air, by train, or in other ways. They are always providing us the good service and the cheapest shipping cost.

Do You Have a Guarantee for the Outdoor Condensing Unit?

Yes, for the standard outdoor condensing units, we have a 1-year guarantee for the main parts. But for the different outdoor condensing units, that would be different, check with us when confirming the order.