Summer in Singapore is like a burning pit. Hence, every resident here prefers installing air conditioners at home to get respite from heat. However, most such aircon installers fail to understand the concept of tonnage.
The tonnage of Air Conditioners
The term “ton” is used for the weight of any object. Hence, the term tonnage is often confused as something that refers to the overall weight of the air conditioners. Tonnage does not mean the actual weight of the aircon, and instead, it is used to determine the cooling capacity that your aircon can offer.
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The working mechanism of Aircon
An air conditioner unit works just like a refrigerator. When a refrigerator cools a particular area, an air conditioner can cool the whole room where it is installed. The cooling of a room from an air conditioning unit is carried out in 4 steps namely,
- Compression
- Condensation
- Expansion
- Evaporation
The low-pressure coolant air will first pass through the compressor and will exit in the form of high-pressure gas. This high-pressure gas will flow into a condenser where the gas will be converted to its liquid form. The heat extracted in the process will be released to the surrounding area.
The high-pressure refrigerant enters the thermal expansion valve with limited space for the easy flow of refrigerant through it. The pressure of this refrigerant will fall as it leaves the expansion valve. From this expansion valve, the liquid refrigerant will reach the evaporator area, where the excess heat from the room will be absorbed.
The cycle starts once again and will continue throughout the hours when the air conditioning unit is switched on.
Ice and Air Conditioning
Decades ago, the concept of air conditioners was still new to people. Hence, they preferred using ice as the cooling agent. The ice that was used would determine the minutes of cooling that a room would get.
A ton of ice melting is equivalent to a ton of refrigeration work done by a fridge in 24 hours. By keeping this in mind, one can calculate that an air conditioner can offer cool air is equivalent to a ton of ice over a few hours.
Understanding the term tonnage can make it easier for you to decide the right kind of air conditioner for your room. The surrounding temperature and humid condition of a room will decide the required hours of the air conditioner in its working mode.
The performance of an air conditioner unit will decrease gradually with the years of usage. Hence, it is suggested to get reputed air conditioner servicing company in your locality and get the unit repaired or replaced as per your preference.
