TopChiller Air Cooled Scroll Chiller Manufacturer and Supplier China

Air Cooled Scroll Chiller-An Ultimate Buying Guide by TopChiller

When the Climate is hot, especially in tropical areas, there is a need for an Air Chilled Scroll Chiller to provide air conditioning, ventilation, and cooling.

Using an Air Cooled Scroll Chiller is an economical and easy way to create a comfortable environment.

An Air Cooled Scroll Chiller is a machine that works by using the ambient air current.  This air is used for HVAC and air conditioning. HVAC stands for heating, ventilation, air conditioning cooling therefore, it is a very useful invention.

Whereas, air conditioning typically refers to maintaining a cool atmosphere in warm conditions.

Whether you want to maintain a comfortable temperature in a school, a commercial mall, a residential building or a restaurant, an Air Cooled Scroll Chiller shall be your first choice.

To make the best use of your Air Cooled Scroll Chiller, it is necessary to understand how it works, how it is installed and maintained, and the precautions of using it.

Here is a complete guide on how to use an Air Cooled Scroll Chiller and make the best out of your investment.

Let’s start it.

What is an Air-Cooled Scroll Chiller?

An Air Cooled Scroll Chiller is an automatic and complete refrigeration unit that provides an efficient cooling function.

Depending on the application and the chiller mode, an Air Cooled Scroll Chiller may have many condensers.

Moreover, the condensers have sub-cooler compartments, electronic expansion valves, and efficient evaporators.

It is highly energy-efficient and convenient to use in harsh weather conditions especially in tropical areas.

An Air Cooled Scroll Chiller has a great design and it is very cost-effective. Special emphasis is given to its manufacturing and testing so that it performs at its best. Also, it is easy to install and easy to use.

By producing cooling and reducing the heat produced by other machines in the industry, it helps you protect your machines for a longer time.

Air Cooled Scroll Chiller Manufactured by TopChiller

What are the Features of an Air Cooled Scroll Chiller?

Here are a few prominent features of an Air Cooled Scroll Chiller.

• It is Reliable and energy-efficient having a European origin.
• An Air Cooled Scroll Chiller uses an Environment-friendly refrigerant R-407C / R-410A/ R-134A,
• It comes with separate and individual refrigeration circuits with each compressor.
• An Air Cooled Scroll Chiller is quite compact and also contains a storage tank and fluid pump.
• It is equipped with an electronic expansion valve for energy efficiency, larger capacities, and precise temperature control.
• The best feature is that it produces low sound, is equipped with pressure-controlled axial fans, low FPI count, high flow, and the best possible efficiency.
• The high efficiency enables it to work in extreme conditions.
• An Air Cooled Scroll Chiller is equipped with a fully automatic PLC-based unit. This unit enables remote operation and data logging facility.
• As it comes with multiple compressors, a separate refrigeration unit is there to support each compressor individually.

Air Cooled Scroll Chiller R-410A Refrigerant

How Does an Air Cooled Scroll Chiller Work?

The working of an Air Cooled Scroll Chiller is dependent on the ambient air current.

An Air Cooled Scroll Chiller works by integrating scroll compressors that is, one scroll compressor within the other one to compress fluids.

• A low-pressure refrigerant enters into the evaporating tubes of your Air Cooled Scroll Chiller.
• Now the chilled liquid moves through the evaporator shells and emits heat which further heats the refrigerant liquids and evaporates.
• The highly heated vapor enters the scroll compressor at low pressure.
• This gives rise to the subsequent increase in vapor pressure and temperature.
• Now the vapor passes through the condenser of your Air Cooled Scroll Chiller.
• During this process, the water flowing through the condenser of your Air Cooled Scroll Chiller takes up the heat from the vapor.
• The condenser is equipped with a combined system of fans that blows ambient air into the condenser of your Chiller so that the refrigerant cools down.
• The cooled, condensed, and partially cooled liquid leaves the condenser and enters the expansion valve.
• Further cooling occurs in the condenser of your Air Cooled Scroll Chiller.
• This process continues as the low-pressure refrigerant enters the evaporator.
• Thus, an Air Cooled Scroll Chiller utilizes the ambient air current for transferring heat. It runs the air current through the whole system at a pressure such that the heat from the running machine is absorbed by the air current. This air current is then ventilated out along with the dissipated heat.
• Therefore, it is necessary to place your Air Cooled Scroll Chiller in a well-ventilated area with good airflow.

Air Cooled Scroll Chiller Working

What are the Components of an Air Cooled Scroll Chiller?

• Efficient Evaporator
• Control/ power panel
• Hermetic scroll compressors
• Electronic Expansion valves
• Refrigerant circuit
• Air-cooled condensers

• Efficient Evaporator

Each model of the Air Cooled Scroll Chiller has a definite type of evaporator.

The evaporator is a network of tubes in which the refrigerant flows, and the chilled liquid flows through the shells.

The strong walls of the Air Cooled Scroll Chiller withstand high pressure from the evaporator and the shell.

The heat exchanger is made up of stainless steel 304 plates.

• Control/ Power Panel

An Air Cooled Scroll Chiller is equipped with an electrical panel that has correction capacitors, transformer, circuit breakers, and disconnect switches.

It enables you to access all the power controls from the electrical compartment.

Also, there are ambient kits, suction pressure transducers, LCD and keyboard display, readout capability, and many more features on the control panel.

• Hermetic Scroll Compressors

There are unique suction gas-cooled hermetic scroll compressors in each Air Cooled Scroll Chiller. These are designed in both axial and radial directions.

If there is a dynamically and statistically balanced rotary compressor, the efficiency can be multiplied.

Higher liquid tolerance is offered by the compressor that has an oil reservoir and higher internal capacity.

The liquid migration in the system can be helped by the use of solid crankcase heaters.

• Electronic Expansion valves

These valves aid in the function of an Air Cooled Scroll Chiller and help in enhancing efficiency.

• Air Cooled Condenser

It is equipped with an Air-cooled condenser that has fins or tube coils.

Also, it has low sound-producing motors and fans that make it work smoothly.

• Refrigerant Circuit

It can have single, double, or many refrigerant units, depending upon your application. The circuit material of an Air Cooled Scroll Chiller is mostly copper with brazed joints.

Air Cooled Scroll Chiller Compressor

What is the difference between an Air Cooled Scroll Chiller and a Screw Chiller?

The Air Cooled Scroll Chiller and Screw Chiller are differentiated based on the compressor used in each category.

Listed below are a few key points for differentiation

A minimum Screw Chiller is 40HP/40Ton whereas an Air Cooled Scroll Chiller ranges from 1HP/1Ton to 60HP/60Ton. Both the categories differ based on capacity range.

A single Air Cooled Scroll Chiller compressor has a maximum capacity of 30HP; however, on the other hand, 40HP is the minimum capacity of a Screw compressor.

Another difference is that the Screw Chiller has no Built-in water tanks and water pumps while An Air Cooled Scroll Chiller comes with both the water tank and the pump. Also, it has a compact design, and therefore, it is easy to integrate.

An Air Cooled Scroll Chiller is equipped with an easy-to-use PID controller, unlike a Screw Chiller that comes with a touch screen.

Screw Chiller

How to Choose Between an Air Cooled Scroll Chiller and a Water Cooled Scroll Chiller?

It is necessary to choose between an Air Cooled Scroll Chiller and Water Cooled Scroll Chiller so that you choose the one that best suits your application.

Here are a few factors that you should consider.

1. Operational Technique

As Air Cooled Scroll Chiller has an air-cooled compressor, it relies on ambient air for the process of cooling.

On the other hand, a Water Cooled Scroll Chiller needs a cooling tower because it has a water-cooled condenser.

1. Efficiency

Commonly, it is seen that the Water Cooled Scroll Chiller is more efficient at cooling as compared to the Air Cooled Scroll Chiller.

Also, a Water Cooled Scroll Chiller can deal with higher heat loads.

1. Coefficient of Performance

A  Water Cooled Scroll Chiller has a higher coefficient of performance ranging between 4.45 to 6.2, as compared to the Air-Cooled type that has a range of 3.2 to 4.86.

1. Cost of Installation

An Air Cooled Scroll Chiller has a lower cost of installation as compared to the water-cooled type.

1. Constant Water Supply

It does not need to have a constant water supply as in the case of the Water Cooled type, and therefore occupies less space.

1. Maintenance and Design

An Air Cooled Scroll Chiller has a minimalistic design and less equipment therefore it needs less maintenance.

Water Cooled Scroll Chiller

What are the Applications of an Air Cooled Scroll Chiller?

An Air Cooled Scroll Chiller is mostly used for medium and small cooling loads.

Office building

As several people are working in the office, the environment tends to get uncomfortable and needs ventilation and air conditioning. An Air Cooled Scroll Chiller is best for ventilation and cooling in this application.

Hotel and Leisure

A hotel or resort must be well equipped with all the equipment to make the environment comfortable and relaxing for the guests. Therefore an Air Cooled Scroll Chiller is a must for this application.

Light Commercial

For retail shops and light commercial use, an Air Chilled Scroll Chiller is a good option to create a comfortable environment to work and shop.

Residential Buildings

Residential buildings have also low cooling loads and their needs can easily be met by using an Air Cooled Scroll Chiller.

Education-Schools and College buildings

It is necessary to have a moderate environment and good ventilation in schools and colleges so that students focus on their studies and stay comfortable.

Small Industries

An Air Cooled Scroll Chiller is also used in small industries. However, this use is limited depending upon the capacity of the Chiller.

It is small in size and is compatible with small setups, therefore it can be used in industries such as plastic manufacturing setups, electroplating industries, dye and pigment industries, laser industries, pharmaceutical industries, and food industries.

Applications of an Air Cooled Scroll Chiller

How to Choose the Best Air Cooled Scroll Chiller for your Applications?

It is important to select the best Air Cooled Scroll Chiller that fits your needs and is suitable for your application.

Here are a few steps that you should follow to find out the best one for yourself

1. Look at what is the usage stage of the machine

You must go through all the parameters before deciding what model you should pick. For this purpose, first of all, check the chilled water outlet and inlet temperature and also measure the amount of the chilled water flow.

2. Compare it with a standard model

Look at the specifications of the chosen model and find out if it is compatible with your cooling load capacity. Also, check its performance.

Make sure that the comparative model of the Air Cooled Scroll Chiller is rated higher than the one you are going for. You can also look for reviews and feedback from other people using it.

3. Calculate fouling by conducting a performance analysis:

It is necessary to analyze the manual of the selected model so that you can understand the fouling coefficient.

4. Make a Performance adjustment

First of all, add a freeze and burst prevention solution for your Air Cooled Scroll Chiller.

Make sure you extract all the water after the testing phase of your Chiller and also keep the weather in mind.

First, you should add a freeze and burst prevention solution to the machine.

This will help you understand that the characteristics of your Refrigerant vary when you add the solution; therefore it must be adjusted properly.

5. Final decision

Make sure you carry out all the analysis regarding the performance and power consumption of your Air Cooled Scroll Chiller.

Also, consider the size of the picked Chiller and look at its installation procedure.

If you don’t come across any fault, get it straight away. However, if you do find a fault, start the analysis again.

What are the Advantages of Using an Air Cooled Scroll Chiller for your Applications?

An Air Cooled Scroll Chiller has many advantages over any other chiller. Some of them are listed below;

• Cost-Effective

As it is An Air Cooled Scroll Chiller, it does not need any water supply or pipeline installation, and only utilizes the ambient air current. Therefore, it is a quite economical choice.

• Less Space-Occupying

As an Air Cooled Scroll Chiller is smaller in size, it occupies less space and is very suitable for industries that don’t have much room for a Chiller.

It can also be installed on a roof and there is no need for a separate room.

• Less Maintenance

Another advantage of an Air Cooled Scroll Chiller is that it requires little maintenance as compared to Water Cooled Scroll Chiller. This is because it has less equipment as compared to the latter one.

• Simple Design and Easy to Operate

An Air Cooled Scroll Chiller does not need any set of pumps or condensers and therefore, the system is very easy to understand and operate.

How to Increase the Working Efficiency of your Air Cooled Scroll Chiller?

Efficiency refers to the cooling ability of the Air Cooled Scroll Chiller and it is determined by many parameters. You can increase the efficiency of your Air Cooled Scroll Chiller through the following;

• Regular Maintenance and Cleaning

With regular maintenance and cleaning, you can increase the efficiency as well as the lifetime of your Air Cooled Scroll Chiller. Any obstruction in any of the coils or biological growth can impede the patent pathways and make it difficult for the Chiller to function.

• Temperature Settings

By air temperature reset control of your Air Cooled Scroll Chiller, you can save a lot of energy and it increases efficiency at the same time. In acceptable humidity levels, and regular load, the cold temperature does the job, however in high humidity levels. High temperature can help in function and avoid unnecessary latent cooling.

With every increase in temperature of the Chilled water supply, there can be a 2 degrees increase in inefficiency.

• Using VFDs

It is another way to optimize energy savings and increase the efficiency of your Air Cooled Scroll Chiller.

• Others

By keeping a strict check on the setpoints and other simple control sequence changes, you can make your Air Cooled Scroll Chiller experience cost-effective as well as efficient.

Air Cooled Scroll Chiller Regular Maintenance and Cleaning

How to Install your Air Cooled Scroll Chiller?

Only a qualified and authentic operator must install your Air Cooled Scroll Chiller or he should supervise the whole installation procedure.

Here are the steps of installation for your Air Cooled Scroll Chiller.

General Installation

• Unpack your Air Cooled Scroll Chiller and make sure that you have received all of the components of the system.
• Now install and fit all the equipment according to the instructions given in the manual. Consider pre-set conditions, project drawings, and other documentation.

Site Determination

• Select the site where you want to install your Air Cooled Scroll Chiller
• Place and fit your Air Cooled Scroll Chiller according to the instructions in the manual.
• Now adjust and level it up on the support system or the base that you have for your Air Cooled Scroll Chiller.
• Provide clearance for maintenance and service as per required by the manufacturer.

Components

• It is necessary that the manufacturer provides all the essential components of your Air Cooled Scroll Chiller and also sends help for the installation.

Electrical Installation

• Make sure that you install your Air Cooled Scroll Chiller in a place where it gets an uninterrupted power supply. Guide your installer to all the electrical connections so that he can set it up efficiently.

Control

• Organize and set all the control settings on the standard point.

Finishing

• Make sure to give the final touches by repainting any irritated areas of your Air Cooled Scroll Chiller and maintaining all the required connections.

Air Cooled Scroll Chiller Installation

What are the Safety Precautions you must Take While Using an Air Cooled Scroll Chiller?

As your Air Cooled Scroll Chiller is also a machine, you have to be very careful while operating it and while being around it.

Here are a few precautions you must take in dealing with every compartment of your Air Cooled Scroll Chiller.

Temperature

• You must take care of the temperature regulation in your Air Cooled Scroll Chiller. Regular monitoring is required for the Chiller and burst protection sensor.
• Careful analysis of module application sensors is important along with IPM temperature detectors.

Refrigerant Pressure

• While dealing with the refrigerant, make sure that your pressure switch and high voltage sensor are working properly.

Chilled Water Flow

• Be careful while dealing with the water flow switch and make sure it is proper and there is no obstruction.

Voltage and Current

• As your Air Cooled Scroll Chiller is powered through electricity, it is a hazardous machine, and you must stay at a distance while operating it.
• Make sure you have a fan motor excess current perfection, voltage checking system, and compressor extra current protection.

Wear PPE Before Operating your Air Cooled Scroll Chiller

 What can you do for the Maintenance of your Air Cooled Scroll Chiller?

Whenever you purchase a machine, you must take care of its maintenance so that it lasts longer and keeps performing its function.

An Air Cooled Scroll Chiller also needs maintenance and here are a few points on how you can do it.

Routine Maintenance

• You must carry out the maintenance of your Air Cooled Scroll Chiller under the supervision of qualified personnel. Also, make sure that all the security measures have been taken, to avoid any casualties.
• If you don’t maintain your Air Cooled Scroll Chiller, there might be gradual degradation of its components leading to loss of function.
• If your application requires process cooling in aggressive environments, then your Air Cooled Scroll Chiller may degrade at a much faster rate than a regular one, therefore, maintenance is important.
• There are two different levels of maintenance, which can be chosen according to the type of application (critical/non-critical) or the installation environment (highly aggressive). Therefore keep a regular check on all of the components.
• Periodically, wash all the frames and surfaces with water and detergent. It will help against corrosion.
• Also, keep giving retouches to any worn-out paint and keep fixing any worn-out wiring.
• Rinsing with fresh water will help you avoid any salt deposits.
• Also, it is essential to clean the coils of your Air Cooled Scroll Chiller regularly by removing any contaminants or biological growth like algae, etc. this will help you avoid any long-term damage.

Monthly Cleaning

• It is recommended to clean all the coils of your Air Cooled Scroll Chiller and rinse with water especially if it is in an industrial area or a coastal area.
• Make sure the water temperature and pressure are sufficient to kill all the biological growth and remove all the salts efficiently.

 Quarterly Cleaning

• It is necessary for the warranty coverage of your Air Cooled Scroll Chiller. If you don’t carry out a quarterly cleaning routine, especially for E-coated coils, then it might reduce the durability and efficiency of your Air Cooled Scroll Chiller.
• Avoid using any harsh chemicals such as bleach for your E-coated coils because it can accelerate corrosion and damage the coils directly.

What are the Common Problems you can face While Using an Air Cooled Scroll Chiller?

There are times when your Air Cooled Scroll Chiller stops working or works at a slower rate and therefore, you must be aware of the underlying causes of the problems you might face. Here are a few problems listed along with how to deal with each of them to restore the proper functioning of your Air Cooled Scroll Chiller.

If you’re Air Cooled Scroll Chiller Stops Working Spontaneously

• It might be due to some electrical connection issue
• Check for any blown circuit breaker, loose wiring, or any electricity breakdown.
• There is a possibility that your Air Cooled Scroll Chiller is turned off. Check for the ‘on’ button.

If you’re Air Cooled Scroll Chiller Stops Cooling

• See if it is cooling or not.
• Check the temperature of the coolant when it leaves the Air Cooled Scroll Chiller.
• If the coolant is not at the set point or near the setpoint, then there might be a problem with the evaporator. It can also be due to deteriorating effects on the coolant properties.
• Make sure that the pump is running properly. A closed valve, a failed pump, or insufficient coolant can also be a cause of decreased function of your Air Cooled Scroll Chiller.

Decreased working due to Environmental Factors

• The load on your Air Cooled Scroll Chiller might be too high because of the ambient temperature or the changes in the process.
• Also, make sure that there is no damage to your Air Cooled Scroll Chiller or any loose or damaged insulation. Check for any voltage fluctuation and also the location of your Chiller.

Voltage Checking for Air Cooled Scroll Chiller

FAQ of Air Cooled Scroll Chiller

What is The Capacity Range for Air Cooled Scroll Chiller?

The capacity of an Air Cooled Scroll Chiller is limited and it cannot stand excessive load therefore, it must be used for low load applications. The capacity ranges from 10 to 65 tons.

What is the Most Suitable Refrigerant for Use in an Air Cooled Scroll Chiller?

The most common refrigerants are R410A, R407C, R22, and these are all environment-friendly and have a global warming potential below 0.2. Also, these are the most appropriate ones.

What Kind of Factory Testing does Air Cooled Scroll Chiller Undergo?

To assess the efficiency of an Air Cooled Scroll Chiller, it is necessary to run some factory tests, also known as a unit performance tests. The focus of this test is to evaluate the functioning of the system.

These tests check the wiring, control function, sensors, electronics, and the capacity and efficiency of the whole system.

What are the Standard Quality Certifications for Air Cooled Scroll Chiller?

The standard quality certifications for an Air Cooled Scroll Chiller include ASHRAE/ ANSI Standard 15 for mechanical refrigeration, ARI Standard 550/ 590 latest rating, Intertek listing, and Labeling (ETL), NFPA 70 (National Electric Code), and a few more.

What are the Technical Specifications of an Air Cooled Scroll Chiller?

A few technical specifications of an Air Cooled Scroll Chiller include Cooling capacity, sound pressure, energy efficiency date, operating weight, integrated part-load value, and machine dimensions like height, length, etc.

Does an Air Cooled Scroll Chiller Have Microprocessor-Based Controllers?

Yes, a lot of the automatic Chillers have microprocessor-based controllers specially designed with several other advanced features. The controller enables the Air Cooled Scroll Chiller to have three standard modes of operation.

What is the capacity of the Block of a Smaller Compressor of an Air Cooled Scroll Chiller?

Mostly the capacity of an Air Cooled Scroll Chiller ranges between 10 to 65 tons. Blocks of a smaller compressor each having a capacity of 20 tons can be added to enhance the capacity and build a bigger Scroll Chiller.

What is the Durability of an Air Cooled Scroll Chiller?

The durability of An Air Cooled Scroll Chiller is up to 10 to 20 years. However, it can be increased if you take proper care and do proper maintenance of your Chiller.

What is the Right Temperature for an Air Cooled Scroll Chiller?

The temperature between 40 to 50 degrees is most suitable for an Air Cooled Scroll Chiller.

How to Calculate the Evaporator Flow Rate of an Air Cooled Scroll Chiller?

The evaporator water flow rate can be calculated by the following formula

QE = Htons 24 / DT where QE stands for evaporator water flow rate (gal/min) and Htons stands for the air-conditioning cooling load (tons).

100% Quality Tested Air Cooled Scroll Chiller