How to Choose Your Truck Refrigeration Unit?

Guchen Thermo as truck refrigeration unit manufacturer exports units help customers transport meat, vegetables, fruits and frozen goods across the country. As for the novices, they are usually confused of what kind of transport refrigeration units are suitable for their business. Guchen Thermo sales staff is very experienced in transporting refrigeration units, and can help our customers to choose the correct units. 
Let’s see how to choose a suitable transport refrigeration unit for your business. Before you buy transport refrigeration units, please have clear answers for the following questions in your mind.

1.What are my refrigerated truck body’s length, width and height?
Knowing the size of your refrigerated truck bodies is very important for us to know how much cooling capacity for your box. Guchen Thermo can supply different transport refrigeration units for big trucks, small trucks, big cargo vans and small cargo vans. Guchen Thermo truck refrigeration units can be suitable for 2-65 m³ truck box, and van refrigeration units can be used for 2-15m³ van box.

PHOTO: Guchen Thermo TR-200 small truck refefer units and TR-650 large truck refrigeration units installation 
2.What is the ambient temperature and cargos required temperature?

The ambient temperature is higher; the cooling capacity is bigger for cargos. For most of Guchen Thermo truck freezer units, the units' temperature is low to -30℃ for transporting deep frozen or frozen cargoes. Also, for those who just want to transport fresh foods, the truck chiller units may be OK for usage. Of couse, different cargos may need different transporting temperature, you also should take ambient temperature and open doors frequency into consideration. For example, fruits and vegetables needs 4-8℃ for fresh transportation; ice cream needs -25℃; Fresh frozen raw meat needs -10℃. If you have no idea for what temperature you should set, please feel free to contact our professional and experienced sales staff for advice. 

PHOTO: Guchen Thermo Truck Refrigeration Units Electric Control Panel 

3.What is transport refrigeration unit installation stype that I choose?
Guchen Thermo can supply different types of truck refrigeration installing for different truck types. For example, the van refrigeration units mount the condenser on the roof top of vans; for most of truck refrigeration units, we can supply condenser front mounted units, but as for some of trucks, which have no enough place to mount condenser in the front, so Guchen Thermo can supply TR-550 truck refrigeration units with condenser under mounted types. 

PHOTO: Guchen Thermo TR-550 Truck Refrigeration Units Condenser Front Mounted (left) or Under Mounted (right)

4.Do I use my units for long-distance transportation or inner city transportation?

As for the long-distance transportation, most of our customers are worried about that their truck anchors on the half road if they use the traditional units (vehicle driven types) which will result in big loss. That is because the vehicle driven units’ cooling system relies on vehicles to generated power for refrigerating air.  But Guchen Thermo can supplydiesel engine driven truck refrigeration units for help. The diesel engine driven truck refrigeration units has its own independent cooling system, so when truck engine stops, cooling system continues! 

Phopo: TS-1000 diesel engine truck refrigeration units installation

5.What is standby system and do I need a standby system? 

Standby system can help you save more fuel consumption to reduce transportation cost. As for the traditional truck reefer units, customers can equip an external standby system for truck refrigeration, but it may be complex to install standby system. In order to solve the problem, Guchen Thermo will launch our new moedel of truck refrigeration----integrated electric standby system truck refrigeration units, included into TR-450S, TR-550S and TR-760S model. Its standby system is in the inner side of condenser, very easy to install, small in size, beautiful in appearence. 

PHOTO: TR-450S integrated electric standby truck refrigeration units

Conclusion

Of course, except the above 5 basic questions, customers also need to consider more questions, such as price, quality, brands, installation, after sales service, transport cargoes, truck body materials and so on. So when buy transport refrigeration units, please take all matters into consideration. Also, Guchen Thermo is very glad to help customers to figure out questions and choose suitable transport refrigeration units for your business!

Keywords: truck refrigeration unit manufacturer, transport refrigeration unit manufacturer, truck refrigeration units, diesel engine driven truck refrigeration units, 

How does a truck refrigeration unit work?

The truck refrigeration system consists of a refrigerant and four main parts, namely a compressor, a condenser, an expansion valve, and an evaporator.

1, the basic idea of refrigeration

The use of liquid evaporation can absorb the heat of the surrounding environment.

2, refrigeration cycle

Increase the pressure and force cooling so that the refrigerant converts the gas into liquid and releases heat.

The high-pressure liquid passes through the small holes and rapidly expands and decompresses, vaporizes, and absorbs heat.

Combining the above two processes, a refrigeration cycle can be formed.

3, 4 necessary components:

Compressor, Condenser, Throttling (Expansion) Device, Evaporator

Compressor

The compressor is the power for the refrigeration cycle, compressing the low-temperature and low-pressure refrigerant vapors to a high temperature and high pressure so that normal-temperature air or water can be used as a cooling medium to condense the refrigerant vapors.

Zhengzhou Guchen industry Co., Ltd. as the distributor of QP series compressors supplies original imported QP compressors and other original compressor spare parts for refrigeration units with competitive pricing. 

The QP compressors are commonly used for the refrigeration industry and air conditioner industry. Especially the swash plate QPcompressors are very suitable for the refrigeration units that adopt R404a refrigerant. 

Condenser

The condenser is a heat exchange device, the role is to use the ambient cooling medium (air or water), the high temperature and high pressure refrigeration vapor from the cold compressor heat away, so that high temperature and high pressure refrigerant vapor cooling, condensing into a high pressure refrigerant at room temperature liquid.

For example, Guchen Thermo TR-350 truck refrigeration units With R404a Eco-friendly refrigerant, it can offer the big cooling capacity up to 3815W, to keep temperature range from -30 ℃ to + 30 ℃ for transporting fresh or deep frozen cargoes.

Expansion valve

The high-pressure refrigerant liquid at room temperature passes through a pressure-reducing device, a throttling element, to obtain a low-temperature, low-pressure refrigerant, which is then sent into the evaporator to absorb heat and evaporate.

Evaporator

The evaporator is also a heat exchange device. The refrigerant liquid evaporates into vapor in the evaporator, absorbs the heat of the cooled material, and lowers the temperature of the material, achieving the purpose of freezing and refrigerating the food.

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Truck Refrigeration Unit Common Faults and Solutions

In the process of long-distance transportation, the truck refrigeration unit will fail due to problems such as long time of use, so how to solve it?

Guchen Thermo is the leading transport refrigeration unit manufacturer in China, and it said that, some minor problems with truck refrigeration units can be resolved on their own. In addition, Guchen Thermo can supply all kinds of truckrefrigeration units and van refrigeration units for your cold-chain transporting demands. For example, Guchen Thermo Super Snow transport refrigeration systems are usually used for the big truck bodies with 7.6 m - 9.6 m length or 35~65 m³refrigerated truck bodies. With R404a refrigerant, the temperature range is -20℃ to +30 ℃ for transporting fresh or deep frozen cargoes. 

I. Truckrefrigeration unit compressor does not work

Reasons: 1, incorrect wiring, low voltage

Solutions: 1, check the wiring 2, check the line power

II. Short cycle of truck refrigeration unit

Reasons: 1, exhaust valve leakage 2, evaporator fan reverse 3, lack of refrigerant

Solutions: 1, replace the compressor 2, correct 3, repair leaks and re-injection

III. Long-term or continuous operation of truck refrigeration units

Reasons: 1, lack of refrigerant 2, the thermostat contact stick 3, condenser dirty

Solutions: 1. Repair leakage and fluid replacement 2. Replacement 3. Cleaning

IV. Truckrefrigeration unit pressure is too highhttp://www.guchenthermo.com/products/truck-refrigeration-units/

Reasons: 1, too much refrigerant 2, the system has air 3, the condenser is blocked

Solution: 1, remove excess 2, system vacuum 3, eliminate

V. Truckrefrigeration unit pressure is too low

Reasons: 1, lack of refrigerant 2, the compressor suction or exhaust valve failure

Solutions: 1. Repair leakage and fluid replacement 2. Replace compressor

VI. Truck refrigeration unit compressor oil loss

Reasons: 1, lack of refrigerant 2, expansion valve blockage 3, compressor suction temperature is too high

Solutions: 1, repair leakage add liquid 2, remove or replace 3, adjust the expansion valve

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Code of practice during loading and unloading of refrigerated trucks

Different cargos have different requirements for the cabin temperature, but the temperature setting range in the specific transportation process needs to be determined according to the specific conditions of the cargo.

There are many considerations in the transport of refrigerated trucks. Once the cabin temperature is unstable during transportation and the cabin is too cold or too hot, the cargo cannot be stored for a long time and it is extremely easy to be damaged.

Truck refrigeration unit manufacturer Guchen Thermo said that in addition to paying attention to the transport process, loading and unloading goods cannot be sloppy.

Before loading

According to the temperature requirements of the transported cargo, the carriages are pre-cooled in advance until they reach the proper loading temperature.

If the humidity inside the box is heavy, the defrosting can be done manually or automatically. Generally, it can be controlled by a temperature controller.

When loading

Try not to open the door too much, reducing the entrance of hot gas and moisture.

Be careful not to obstruct the inlet and outlet of the evaporator when loading.

Cargo pallets are placed between the cargo and the carriage floor to ensure that the bottom cool air can circulate.

In addition, it is necessary to frequently check the chassis of the vehicle, the refrigeratedtruck unit, the backup power supply, etc. to ensure that it can work properly, so that it will not fail during transportation and cannot be moved, thus causing damage to the goods. At the same time, it is also necessary to clean the interior of the train frequently to ensure the safety of food transportation.

Guchen Thermo manufacture and supply all kinds of truck refrigeration units and van refrigeration units apply for small to big, large cooling capacity for long, middle or short distance frozen transport business.

For example the TR-300truck refrigeration units, it is front mounted vehicle engine driven units, especially apply for 10~20m³(L≤4.3m) small or medium sized refrigerated truck box. With the R404a Eco-friendly refrigerant, can make inner temperature keep at -20℃ to 25℃. So TR-300 small refrigerationunits for trucks are more suitable for transport frozen or deep frozen foods.

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Problems to be aware of when using truck refrigeration units

It is generally believed that the goods with too high or too low temperature are loaded into the compartment of the refrigerated truck, and the truck refrigerating unit is set to the necessary transportation temperature. After a certain period of time, the temperature of the cargo will drop to or rise to its required temperature.

However, the opposite is true. China truck refrigeration direct drive manufacture said that not only does the temperature fall (or does not go up), the cargo damages or deteriorates. The cooling air blown by the truck refrigeration unit will change the temperature of the goods, and the water content of the goods will be lost. This will cause the quality of the goods to change, which will lead to a decline in the quality of the goods, a shortened storage period, and even a corruption of the goods.

Refrigerated cars are not cold storage. In the concept of many people, the truck refrigeration unit for ambient temperature on a refrigerated truck is free to freeze or heat the cargo loaded into the compartment to the necessary temperature. Good quality truck refrigeration unit manufacture Guchen Thermo said that truck chillers are used to maintain the temperature of the cargo, not to reduce the temperature of the cargo.

Truck refrigeration unit should be closed when loading and unloading. Many people do not shut down the truck chiller unit when loading or unloading goods, thinking that this can make the temperature of the goods rise more slowly. In fact, this is a very wrong understanding.

Clean the refrigerator compartment frequently. Truck refrigeration unit for ambient temperature manufacture Guchen Thermo said that the refrigerated trucks are often loaded with different goods, especially fish, meat, etc. It is best to clean the cars once after each shipment.

Prior to loading, the car must be pre-cooled or warmed up for about 1.5 hours. Good quality truck refrigeration unit manufacture Guchen Thermo said that when the cargo is loaded into the carriage, the ambient temperature inside the carriage will affect the temperature of the transported cargo, which will cause the quality of the transported goods to change. Therefore, the carriage must be pre-cooled to the necessary temperature before loading.

Guchen Thermo is the biggest truck refrigeration direct drive manufacture in China, we supply all kinds of truck refrigeration system, apply for small to big truck, direct drive, diesel powered and electric powered transport reefer units for your fresh, frozen or deep frozen transport. 

Keywords: China truckrefrigeration direct drive manufacture, good quality truck refrigeration unitmanufacture, truck refrigeration unit for ambient temperature

TR-110D Van Reefer Unit to Hungary|Guchen Thermo

Guchen Thermo TR-110D is small van refrigeration unit with Eco-friendly R134a refrigerant, TR-110D refrigeration unit for van is DC powered 12V or 24V units, Its compressor is in the inner side of condenser, so it is very easy to install, save space and light weight. TR-110D chiller unit for van is suitable for 2~8m³  small refrigerated vans, especially designed for Sprinter, Ford, Fiat, Renault, VW,EVECO... vans. TR-110D small van refrigeration unit temperature range is -5℃~+25℃, for delivering fresh and chilled foods. 

Once the van engine is off, the van reefer units won't last long for refrigerating. So please equip the cargo van refrigeration unit with an extra transformer (AC Power Switch), which can transform the AC main power to DC12V/DC24V; besides, it can be plugged into the 240V/380V main power supply, and in the mean time charge the vehicle battery. So it’s very simple and convenient to run the van refrigeration units when the engine is off. 

According to customers'feedback, these refrigeration units for van are very easy to mount, because he doesn't need to install compressor on the other side of cargo vans. 

Guchen Thermo as the condenser roof mounted electric chiller units for van manufacturer can give you the best quotation for this units! Welcome to contact us to ask quotation!

We warmly welcome the partners who are in the business of truck body factory, vehicle refitting factory, other brand refrigeration dealers and so on to join us!

TS-1000 Truck Refrigeration System Export to Thailand

Guchen Thermo the TS-1000 refrigeration units for trucks are especially designed for the large trucks with 45-55m³ truck box, condenser front mounted truck reefer units to meet all of your cold chain transportation demands. Vehicle engine driven or standby system model for choice, not rely on truck engine, eco-friendly, help you to save the fuel consumption. After thousands times tested under the ambient temperature is up to 50℃, safe to use in the hot areas.

Mr. Kim lives in Thailand, and he is a truck refrigeration unit split suppliers in local place, he ordered TS-1000 truck refrigeration system for his customer. From his feedback we know that TS-1000 truck refrigeration unit has the nice appearance, evaporator small in size, not take up much space, and condenser front mounted. It is suitable for the large truck body for long distance or middle distance transportation.

Photo: TS-1000 Diesel Powered Truck Refrigeration System Installation

TS-1000 Diesel Truck Refrigeration Units Features 

● Perkins engine, low noise, low emission, low vibration and low life cycle cost.
● All of the truck refrigeration units have been tested under the 50℃ high ambient temperature and improve units working life.
● German GEA Bock compressor
● R404A Eco-friendly refrigerant
● In-cab remote display and control
● Automatic and manual hot gas defrost
● Automatic phase failure correction
● 3-Phase standby motor
● Multiple safety protection devices 

Any of the relative HVAC field friends are warmly welcomed to cooperate with us, sell our transport refrigeration units in your local areas, for the details, you can send your requirement to our email, we will be glad to reply you in 72h. info@guchen.com