What is Cabinet Air Conditioners?

Cabinet air conditioner definition

Cabinet air conditioner (also called electrical cabinet air conditioner, or control cabinet air conditioner) is produced for closed-loop enclosure heat dissipation in which electrical components, or equipment works whereby excessive heat can be generated. The working environment of cabinet air conditioner is usually outdoor, so its design varies from that of the household air conditioner. 

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Cabinet air conditioner design

• Mounting method

There are various mounting methods in cabinet air conditioner design: wall-mounting, semi-embedded mounting, full-embedded mounting, etc.

• Functions and features

The cabinet air conditioner adopts the downward air outlet and upward air return mode. It uses a backward inclined centrifugal turbine fan. During the working process, under the action of the centrifugal fan, the air pressure in the upper part of the cabinet is pumped down by the fan, and the air pressure in the lower part is higher than that in the upper part. The air flow circulates rapidly. Even when the compressor is not working, using this strong convection mode can naturally cool and reduce the hot spot phenomenon in the cabinet. The fan air volume of the cabinet air conditioner is generally more than three times that of the household air conditioner, so the heat dissipation effect is relatively better. At the same time, the cabinet air conditioner can also be cooled in winter. Other supplementary features of cabinet air conditioner, 18 Features That Cabinet Air Conditioner Should Have (1) and18 Features That Cabinet Air Conditioner Should Have (2) give more details.

• Protection grade

The protection level of the internal unit of the split household air conditioner is low, which is IP30. The outdoor unit has the rain proof function. The outdoor cabinet air conditioner requires a high degree of protection, generally IP54 or IP44, with good waterproof performance. Know how to define protection grade of cabinet air conditioner? 

• Anti-theft

The internal components of the household air conditioner are made of engineering plastics, which is easy to cause safety hazards. In addition, the indoor unit of the household air conditioner is separated from the outdoor unit, and the outdoor unit is exposed in a conspicuous place, which is easy to be stolen. The cabinet air conditioner adopts the overall anti-theft design, which cannot be removed from the outside after installation.

• Intelligent monitoring and remote control

Household air conditioners usually use remote control devices to switch on and off the air conditioners. They do not have remote data transmission interfaces, and only have high-voltage devices in terms of protection functions. The cabinet air conditioner is equipped with complete protection devices, including high-voltage protection, evaporator icing, high voltage protection, disconnection protection, overcurrent heat protection, high temperature alarm and low temperature alarm. R-485 interface is installed to realize long-distance data transmission, centralized monitoring and automatic alarm.

• Anti interference and electromagnetic compatibility

The cabinet air conditioner is designed according to the strong electromagnetic environment and meets the relevant EMC standards. It will not generate electromagnetic interference or shut down due to strong electromagnetic interference.

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• Main accessories

• Refrigerant:

R134a environmental protection medium pressure refrigerant is generally used for cabinet air conditioners. When the ambient temperature is high, R134a will have a small cooling capacity attenuation, and R22 will be banned from use after .

• Fan:

Cabinet air conditioner generally uses industrial fans and self-lubricating ball bearings. Its service life is up to 80,000 hours, and it can operate continuously for 10 years under 24-hour working conditions. In addition, this fan has waterproof function and high protection grade, which can reach IP54 or IP44 standards. It has long air supply distance, large air volume and high air pressure.

• Plate and surface coating:

The sheet metal parts used in the cabinet air conditioner are usually painted with about 1.5mm sheet metal and outdoor powder, which are not only light and high in strength, but also have excellent corrosion resistance and weather resistance.

• Maintenance

Unlike household air conditioner that its indoor and outdoor units are connected by pipes, the refrigerant will leak to a certain extent and it is generally necessary to replenish the refrigerant every few years. The cabinet air conditioner can be basically maintenance free. In addition, its refrigeration system is fully enclosed welding, and there will be no refrigerant leakage within 10 years.

Additionally, cabinet air conditioner adopts a convenient maintenance design, and all components can be disassembled and maintained from the front and rear sides.

Did you know that the temperature inside an electrical enclosure can reach over 130°F? These extreme temperatures far exceed the capacity of a comfort cooling unit. This heat must be removed to prevent sensitive electronic components from operational impairment or, worse yet, total failure and downtime of the controlled process.

An enclosure air conditioner (for electrical panels, control cabinets, etc.) is unique. It differs considerably from the &#;comfort cooling&#; units used in homes and buildings. While both are intended to maintain certain temperatures, there are several key differences.

1. Frequency of Operation
   The air conditioning system in your home or office building may only operate for three or four months out of the year, while enclosure air conditioners may be tasked with operating every day of the year.
   
   
2. Temperature Range
   The special-purpose air conditioning units that cool enclosures will operate at as low as -20°F ambient and continue to provide reliable cooling. Comfort cooling air conditioners, on the other hand, are not designed to operate below 60°F as this would cause the units to freeze and fail.
   
   
3. Design & Durability
   Enclosure air conditioners are superior in design compared to their comfort cooling counterparts. Since they are specialized for industrial environments, enclosure cooling units are often subject to dust, dripping liquids, rain, washdown, corrosive atmospheres, and periods of motion or vibration. Accordingly, enclosure AC units are constructed with long-lasting electrical components, high-quality motors, and an outer cabinet that can resist corrosion, and withstand severe environmental conditions.
   
   By contrast, window air conditioners are designed for the consumer market and are therefore manufactured to sell at a lower price point. The design of the window AC units can take advantage of the cheapest available components and construction, such as plastic structural parts, electrical components with reduced reliability, and cabinets using thin gauge metal. Additionally, they are only rated for outdoor use, installed in relatively benign environments, and may contain parts that will deteriorate when exposed to corrosive atmospheres or liquids.
   
   
4. Special Certifications & Designations
   Enclosure air conditioners typically carry agency markings such as UL (Underwriters Laboratories), which designates the environmental hazard from which the internal components are being protected. The environmental conditions associated with this marking, the NEMA (National Electrical Manufacturers Association) rating, should be matched to the enclosure or cabinet to be cooled. For additional information about NEMA ratings and enclosure cooling, please read Everything You Need to Know About NEMA Ratings When Cooling an Enclosure.
   

Reliability is vital for enclosure cooling products. If a cooling system fails, a key process controller can quickly overheat, causing an entire production line to grind to a halt. Avoid costly downtime by trusting your next project with the experts at Kooltronic.