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15 Ton Portable Air Cooled Glycol Scroll Chiller -5C
  • 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C15 Ton Portable Air Cooled Glycol Scroll Chiller -5C
  • 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C15 Ton Portable Air Cooled Glycol Scroll Chiller -5C
  • 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C15 Ton Portable Air Cooled Glycol Scroll Chiller -5C
  • 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C15 Ton Portable Air Cooled Glycol Scroll Chiller -5C
  • 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C15 Ton Portable Air Cooled Glycol Scroll Chiller -5C
  • 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C15 Ton Portable Air Cooled Glycol Scroll Chiller -5C

15 Ton Portable Air Cooled Glycol Scroll Chiller -5C

With more than 15 years of supplier and manufacturer experience in 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C, Tongwei supplies a total packaged solution of all refrigeration chillers for -40℃ to 2℃ temperature range, cooling capacity from 1KW to 1000KW. Glycol Chiller is widely used in winery, brewery ,distillery, fermentation cooling process. We have strict quality control and strong ability of designing and manufacturing. We look forward to becoming your long-term low temperature glycol chiller supplier in China.

Chiller Model: TW-20AL
Cooling Capacity: 29.5KW(25370kcal/h) @ -5℃ / 26.4KW(22704 kcal/h) @ -10℃ / 16.9KW(14534kcal/h) @ -20℃ / 9.5KW(8170kcal/h) @ -30℃
Refrigerant: Environmental Friendly R404a
Power Supply: 380V/50HZ /3PH (Standard) / 208-480V/60HZ/3PH(Customized)
Compressor Brand: Panasonic Scroll Compressor
Evaporator Type: SS Plate Type (Standard) / Shell and Tube Customized)

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Product Description

15 Ton/20HP Portable Air-Cooled Glycol Scroll Chiller -5C

Tongwei is a leading China 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C manufacturers and suppliers. A glycol chiller ,also called a low temperature chiller or glycol refrigeration system, is an industrial process chiller that uses a water and glycol mixture as a coolant which allows it to efficiently transfer heat and maintain temperature control in different kinds of industrial applications, particularly in applications that involve cooling liquids or equipment.Glycol is recommended for all chiller units when operating temperatures are below 41°F (5°C). our vast experience with low-temp chillers delivers reliable engineered solutions for every process need.

20HP Ton Portable Air-Cooled Glycol Scroll Chiller model TW-20AL includes two 10hp  multi-stage hermetic scroll compressor using R404a refrigerant. The refrigerant is a non-depleting ozone gas and is considered environmentally friendly.

Tongwei is china professional manufacturer and supplier of low temperature chiller with 15 years of refrigeration experience, we guarantee the production of the best quality industrial chiller system with amazing specifications and super warranty offers.

We have the ingenuity and engineered solutions to solve even the most challenging low-temp chiller needs.

15 Ton Portable Air Cooled Glycol Scroll Chiller -5C Technical Specification MODEL:TW-20AL



nominal cooling capacity








Chilled Water temperature range


Max power consumption



Full load



power source


3PH-380V-50HZ (Standard)

3PH-220-480V-60HZ (Customized)







External-balanced thermostatic expansion valve




hermetic scroll type







Efficient aluminum finned copper sleeve+low noise external rotor fan

air volume



fan motor






SS Plate Type Evaporator (Standard)

Shell and tube Evaporator (Customized)

Chilled Water Flow(M3/h)







Inlet and Outlet Pipe



Water pump







safety devices

Compressor overheating protection,over-current protection,high and low pressure protection,over-temperature protection,traffic protection,phase sequence/phase loss protection,low level protection,frost protection







Features And Advantages of 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C

  ▪ Microprocessor Controller with RS-485 communication protocol supported version available on request.

  ▪ The chiller is with a low-level tank indicator alarm which turns on when the fluid levels in the tank decrease below the normal value

  ▪ High quality Brazed plate/shell and tube as heat exchanger

  ▪ Inlet and outlet water bypass valves are equipped to adjust the water pressure as needed

  ▪ The water tank sight glass allows the water level and water quality to be checked at a glance.

  ▪ Panasonic/Danfoss scroll compressor with environmental friendly R404a refrigerant

  ▪ Simple&easy installation low maintenance cost

 ▪Chiller equipped with the following safety protections:Overload Protection,Inverse Phase Alarm,High/Low Pressure Alarm,Water Flow,Water Level Indicator,Anti-Freeze Protection

What Are The Main Components Of 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C?

3.1 Compressor

The compressor is the key mover in low temperature Chiller because it produces pressure variations to stir the refrigerant around.

For 20hp low temperature chiller unit , which is with two units 20HP Panasonic /danfoss brand compressor, using R404a refrigerant,this brand compress is with high refrigeration efficiency,low noise ,energy saving,environmental protection and durability,safety and stability.

Panasonic Compressor

3.2 Evaporator

The evaporator is a crucial component of glycol chiller system, as it is responsible for extracting heat from the liquid being cooled,it is located between the compressor and the expansion valve. There are three types of evaporators : coil in water tank evaporator , shell and tube evaporator, 304SS stainless steel plate type evaporator.


Coil in SS Water Tank Evaporator

SS Plate Type+ Water Tank Evaporator

Shell and Tube Evaporator

3.3 Water Pump

The water pump is designed to increase the pressure and the flow of the chilled water in a closed space.the water pressure water pump for chiller is about 2 bar , but if you need more higher water pressure , pls tell us when you inquiry .For example ,when you use chillers for cooling bottle blowing machine ,the water pressure for water pump need about 4 bar .


Water Pump

High Pressure Water Pump

3.4 Condenser

The condenser for low temperature chiller is equipped with efficient cross-seam fins and female threaded copper tubes for high heat exchange efficiency and good stability.Its function is to cool down the refrigerant steam released from the compressor into a liquid or gas-liquid mixture.


Aluminum fin+fan Condenser

3.5 Controller Panel

Tongwei chillers use precision digital temperature controller, it RS485 communication port,which can do remote monitoring and control. Simple operation, low failure rate, high safety factor, easy installation.

Controller Panel

Spare Part for Low Temperature Glycol Chiller

What’s the Difference Between Air-cooled & Water-cooled Low Temperature Chillers?

There are two types of low temperature chiller: one is air-cooled low temperature chiller ,the other is water-cooled low temperature chiller ;Air-cooled low temperature chillers use ambient air to dissipate heat from the brewing processes. They are energy-efficient, space-saving, and less maintenance that helps save money.

Water-cooled low temperature chillers use water from an external water cooling tower to dissipate heat from the brewing processes. These systems are longer lifespan, Relatively quiet, and more consistent cooling performance than the air-cooled brewery chiller.

Air-cooled Low Temperature Chiller              

Water-cooled Low Temperature Chiller

Air-cooled Low Temperature Chiller Installation

Air-cooled Low Temperature Chiller Installation

Should you choose an air-cooled or water-cooled low temperature chiller? Contact Us for help determining the best solution for you.

What is the Difference Between Low Temperature Scroll Chiller and Low Temperature Screw Chiller?

Low Temperature Scroll Chiller                                Low Temperature Screw Chiller

▪ 1hp-60HP                                                               Above 60HP

▪ Danfoss/Panasonic Scroll Compressor                          Hanbell/Bitzer Screw compressor

▪ Built with water tank and water pump                           Without water tank and water pump

Air Cooled Glycol Scroll Chiller                                

Air Cooled Glycol Screw Chiller

Why Glycol Is Used for Cooling?

The most commonly used coolant in a chiller is water or a mixture of water-glycol. Glycol-based coolants consist of either ethylene glycol or propylene glycol. The main advantage of glycol coolants is their anti-freeze properties. Pure water freezes at 0 degrees C, while 30% ethylene glycol freezes at -14 degrees C. The low freezing point of glycol mixtures makes them ideal for cooling items that are below the freezing point of water. Although glycol has a lower heat capacity than water (each kilogram of glycol is easier to heat than one kilogram of water), the high temperature difference allows the glycol mixture to dissipate heat more quickly than pure water. The glycol mixtures are more suitable for applications where the chiller must quickly dissipate a large number of heat. In addition to providing excellent heat transfer parameters, glycol tends to discourage algae growth in heat transfer equipment.

Comparison of Ethylene Glycol and Propylene GlycolProperty  


 Ethylene Glycol

 Propylene Glycol 

 Freeze point depression

 More effective 

 Less effective 

 Heat transfer efficiency/capacity









 Chemical Oxygen Demand




 Degradesin 10-30 days 

 Needs more than 20-30 days to degrade





 High level of acute when taken orally,targets the kidneys 

 Lower level of acute

 Skin Irritant 



Ethylene Gycol And Propylene Glycol

How Does A 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C Work?

A glycol chiller is composed of a refrigeration component and tubing containing a water-glycol mixture as coolant. Chilled fluid from the refrigeration unit is channeled through the piping associated with a thermal exchanger surrounding a heated process. After absorbing heat from the associated process, the hot coolant is returned to the refrigeration unit for cooling after which the process is repeated.

A glycol chiller consists of a compressor, an evaporator, a condenser, a throttling element, and an electric control system. Let’s see what’s the working principle of a glycol chiller:

 Glycol Chiller Working Principle

The Ratio of Water to Glycol to Use

It is important to use the proper ratio of glycol to water mixture in the cooling system depends on the coldest temperature you need during operation, as insufficient glycol can cause the system to freeze, possibly bursting pipes and even destroying the chiller evaporator even may damage the glycol chiller, while too much glycol to a chiller system will result in an inefficient system.

But what’s the best ratio for glycol and water mixtures? Please see below glycol ratio of glycol and water mixtures for the glycol chiller in your cooling process:



Water Temperature






















What Applications Can A Low Temperature Glycol Chiller Be Used For?

Glycol chiller is a specific kind of cooling system,which is  used to cool a variety of liquids and other industrial applications.

By using a glycol chiller can achieve the low temperature for your industrial usage you need .

Glycol chillers are most used for below these Industries:

10.1 Breweries

In breweries, the glycol chiller is used for cooling the wort,Controlling Fermentation,Crash Cooling Vessels,Prepackaging and Product Storage.

Glycol Chiller for Breweries

10.2 Wineries

Glycol chillers are widely used in the fermentation process, cold stabilization and room cooling purposes.

Glycol Chiller for Wineries

10.3 Cider Mills

Fermentation control needs critical water temperature control. Glycol chiller can provide cold chilling of the juice and milk, also the cold storage of the final product.

 Glycol Chiller for Cider Mills

10.4 Distilleries

During the fermentation process, the glycol chiller will provide a steady coolant for circulation between distillation tanks & stills for heat removal purposes.


Glycol Chiller for Distilleries

10.5 Food Industry.

Glycol chillers can provide low-temperature coolant to guarantee the safety and consistent quality of frozen foods, food processing companies need a low-temperature cooling day in and day out.

Glycol Chiller for Food Industry

10.6 Dairy Product

A properly designed dairy glycol chiller can cool the milk very rapidly to help keep milk temperatures (and bacteria growth) under control as it is transferred from the milking parlor to its insulated tank.

Glycol Chiller for Dairy Product

Do you need a glycol chiller for an application not mentioned here? Contact us and we’ll customize an affordable solution for your exact demands.

11.How I Can Choose The Right Low Temperature Chiller For Your Application?

There are four important chiller specifications you need consider when you choose a chiller for your application :the cooling capacity for chiller ,the voltage required for operation, the associated pump horsepower and flow rate (contact us for custom selection), refrigerant, and the evaporator type.

11.1 Air-Cooled Glycol Chiller or Water-Cooled Glycol Chiller

There are two types of glycol chiller: one is air-cooled type, the other one is water-cooled type.

Air Cooled glycol scroll chillers use aluminum fin+fan as condensers that is similar to the “radiators” in a car.They use a fan to force air through the refrigerant coil. Unless they are specifically designed for high ambient conditions, air-cooled condensers need to operate effectively at an ambient temperature of 45℃ or less.

Water Cooled glycol scroll chiller use shell and tube as condensers.The heat enters the condenser water from the refrigerant vapor. The warm condenser water is then pumped to the water cooling tower, where the heat from the process is eventually vented to the atmosphere.

11.2Calculate Right Cooling Capacity For Chiller

One of the most frequently ask about how we can know the cooling capacity for chillers.  We use KW ,Ton, But/h,Kcal/h to choose chiller cooling capacity :1 KW=860 kcal/h ;  1 TON=3.517 KW;  1 KW=3412 Btu/h;

There is also a formula to calculate the cooling capacity for chiller:.

Cooling Capacity(kw)= Flow Rate(m3/h)*Temp Change(T1-T2)/0.86

Heat Load= C(specific heat)* M(quality output per hour )*Temp Change(T1-T2)

Oversize the chiller by 20% Ideal Size in KW = KW x 1.2

Noted : T1:Incoming Water Temperature (℃)      T2:Required Chilled Water Temperature(℃)    


For example, what size of chiller is required to cool 10m³ water from 35°c to 15 °c in 1 hour?

Temperature Differential = 35℃-15℃=20℃

Water Flow Rate = 10 m³/hour

Cooling Capacity in KW = 10 x 20 ÷ 0.86 = 232 KW

Oversize the chiller = 232 x 1.2 = 278.4KW

278.4 kw cooling capacity for chiller is required.

11.3 Power

Different countries and regions have different standards for industrial electricity, the common power supplies are 208-230V, 380-420V,440-480V,50Hz or 60Hz, 3phase.

Such in Philippines ,the power supply is 220V 60HZ 3PH , 380V 60HZ 3PH ,460V 60HZ 3PH;

in Singapore and Malaysia ,the power supply is 415V 50HZ 3PH;

in Mexico ,the power supply is 220V 60HZ 3PH;

In USA ,the power supply is 208V 60HZ 3PH;575V 60HZ 3PH;480V 60HZ 3PH and so on

11.4 Water Pump

When you decide the capacity/tonnage of the chiller, we will recommend you the suitable pump in KW,which standard water pump is about 2 bar .If you need more high water pressure , please us when you inquiry.

11.5 Refrigerant

R22, R410A, R407C, R404A, R134A are optional choices.

R22: good cooling effect, but R22 is considered a powerful greenhouse gas, so it’s forbidden in most countries.

R410A: eco-friendly, R-410A has replaced R-22 as the preferred refrigerant for use in residential and commercial air conditioners in Japan, Europe, and the United States. R-410A operates at higher pressures than other refrigerants.

R407C: a good replacement for R22, good cooling effect.

R404A: suitable for application that requires low temperature(below -10°c).

R134A: a non-flammable gas used primarily as a “high-temperature” refrigerant, suitable for air-cooled chiller working at a high ambient temperature above 50℃.

11.6 Evaporator Choose

Chillers generally have two types of evaporators: one is coil in water tank evaporator ,the other one is shell and tube evaporator.

Coil and tank evaporator, which has a built-in water storage tank for more convenient use,so there’s no need for extra buffer tanks. This is also our standard evaporator for chiller , if you don’t have buffer tank ,we just use this evaporator for your chiller.

Shell and tube type evaporator, which requires an additional water buffer tank to connect .

12.Shipping Way of Low Temperture Chiller

As a professional low temperature glycol chiller supplier &exporter,we have our own shipment forwarder to arrange the shipment .Our chiller machine is with plywood packing,which prevent damage during transportation and meet export standards.There are three ways can delivery your chiller unit :

1. Ship by Air: As the chiller is with compressor ,water pump and fans ,the compressed refrigerant and oil inside the compressor is a dangerous item with the possibility of explosion , so it needs to release the compressed refrigerant before transportation. (It means that water chiller without refrigerant when choosing this shipping way. After the machine arrives at your destination, you need to add refrigerant by local professionals. The airline company also request us to provide many documents to prove that the chiller not a dangerous product. The freight cost by air is very high may be higher than the cost of chiller , So By air for delivery is not the mode of transport recommended to our customer.

2. Ship by Sea: The transportation time is longer than by air , but the freight cost is cheap ,and there is no need to add refrigerant after the equipment arrives at the destination.This shipping way is the most suitable mode of transportation for you to delivery your local port.

3.If you have your own shipment container in your other supplier in China, we can help you delivery the chiller machine to your supplier in any city of China .

Why should you choose Tongwei for your 15 Ton Portable Air Cooled Glycol Scroll Chiller -5C supplier?

▪ Experience you can trust

We have been designing and building water chiller for over 15 years. From air cooled chiller to water cooled chillers and everything in between, we have built chillers for nearly every industry and every application.

▪ Fast Quote

Get a quote for your project today! We typically provide a custom quote within 2 hours.

▪ 24/7 customer service

Believe that we will always be by your side. Whether you have a question or need a quote, there‘s always someone answering the phone 24 hours a day.

▪ Durable and reliable machine

Our products are manufactured from high quality materials and we offer a competitive warranty on all  industrial chillers.

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