What does 2 ton AC mean?

Q: How many square feet does a 2 ton AC cool?

For those of you that dont understand the way AC systems work, a 2-ton unit typically provides cooling for about 900-1,400 square feet of space – give or take.

What is the meaning of 1.5 ton AC or 2 ton AC?

Table of Contents Show

What is the meaning of 1.5 ton AC or 2 ton AC?
What are SEER and EER in air conditioner?
Calculation of Energy Efficiency Ratio (EER)
Air Conditioning Tonnage – What is it?
AC Tonnage Calculator
How many square feet does a 2 ton AC cool?
What is the difference between 1 ton and 2 ton AC?
Is 2 ton AC enough for what room size?
What is the difference between a 2 ton and 3 ton air conditioner?

A ton of refrigeration is defined as the rate of heat transfer that results in the melting of 1 short ton (2,000 Pound or 907 kg) of pure ice at 0 C (32 F) in 24 hours. The value is defined as 12,000 BTU per hour, or 3517 watts.

What is BTU?

BTU (British thermal unit) is defined as the amount of heat required to raise the temperature of 1 pound of liquid water by 1 degree Fahrenheit at a constant pressure of 1 atmosphere).

Following table provides details of energy calculation details in case of 1.5 Ton and 2 Ton AC.

1 Ton AC = 12000 BTU/hr	1 Ton AC = 3517 Watts* (approx.)
1.5 Ton AC= 1.5 x 12000 = 18000 BTU/hr. 2 Ton AC = 2 x 12000 = 24000 BTU/hr. and so on...	1.5 Ton AC = 1.5 x 3517 = 5275.5 Watts. 2 Ton AC = 2 x 3517 = 7034 Watts. and so on...

Here unit Watt* is not the Rated electrical power consumption in watt. But it is the rate at which work is done or energy is transmitted. Watt* = joules/second

What are SEER and EER in air conditioner?

SEER-The efficiency of air conditioners is often (but not always) rated by the seasonal energy efficiency ratio (SEER). The higher the SEER rating, the more energy efficient is the air conditioner. The SEER rating is the BTU of cooling output during its normal annual usage divided by the total electric energy input in watt hours (Wh) during the same period. In India it is consider as ISEER (Indian Seasonal Energy Efficiency Ratio).

Calculation of Energy Efficiency Ratio (EER)

Lets take example of following AC with various parameters associated with it for purpose of EER calculations

Model Description	Rated EER	Capacity(Ton)	Rated Cooling Capacity (W)	Rated Power Consumption (W)	Star Rating
Voltas SAC 185 MY	3.51	1.5T	5050	1438	5

EER- Energy efficiency ratio is measured only one at peak cooling time and maximum outside temperature.

EER = Rated Cooling Capacity (W) / Rated Power Consumption (W)

Here, Voltas SAC 185 MY, Rated Cooling Capacity (W) is 5050 instead of 5275.5 watts for 1Ton AC

EER = 5050 / 1438 = 3.51 w/w

Air Conditioning Tonnage explained by AC Warehouse

What does Air Conditioning Tonnage mean?

“Air Conditioning Tonnage” is one of the most mysterious phrases in the HVAC industry. Sometimes it seems like air conditioning technicians and engineers have an entire language of their own. Some of the words these folks use are common, but the way they use them is not. If you are an air conditioning repair customer, being educated in this terminology could be helpful.

Air Conditioning Tonnage is a term for rating air conditioning units. Many people think it has something to do with how many tons of air the unit handled in a given time.

Air Conditioning Tonnage – What is it?

Air conditioning tonnage has nothing to do with weight. A ton, as used in the HVAC field, is a term that describes how much heat the AC unit can remove from a home in one hour. The measurement for heat is the British thermal unit (BTU). One ton of air conditioning can remove 12,000 BTUs of air per hour. A four ton unit can move 48, 000 BTUs and so on. Therefore, the more tonnage an AC unit is rated at, the more air it can cool.

Most homes, depending on ceiling heights, windows, and airflow will need a ton of air conditioning for every 400 to 1,000 square feet. Higher air conditioning tonnage can mean higher energy costs because the more tonnage an air conditioner is rated for the more work it is doing. When buying a new air conditioning installation, get one that is EnergyStar certified. They are the most efficient units available. And AC Warehouse has them.

Fun facts: Unbelievable as it seems, the entire formula has to do with 19th century ice production during the winter on the Hudson River and how much heat one needs to melt one ton of ice in a 24-hour period. That translates in modern day science to one ton of air conditioning equals 12,000 BTUs. Some people claim that Willis Carrier, the inventor of air conditioning, introduced the usage of the term “tonnage”. If your scientific curiosity has you burning to know more, here is a link: https://en.wikipedia.org/wiki/Ton_of_refrigeration

Use our AC Tonnage Calculator to estimate what size of air conditioning unit is best for you.

AC Tonnage Calculator

How many square feet does a 2 ton AC cool?

For those of you that don't understand the way AC systems work, a 2-ton unit typically provides cooling for about 900-1,400 square feet of space – give or take.

What is the difference between 1 ton and 2 ton AC?

However, the ton capacity of an AC plays a crucial role in deciding how long an air conditioner will take in cooling a room. A 1 ton AC generally takes around 1 hour to cool a room, whereas an AC with a 1.5 ton capacity can take anywhere around 35-45 minutes to cool the same room.

Is 2 ton AC enough for what room size?

To avoid calculations, the rule of thumb says a 1 ton AC covers up to 100 square feet, 1.5-ton covers around 180 square feet and a 2 ton AC can cool up to 240 square feet of space.

What is the difference between a 2 ton and 3 ton air conditioner?

HVAC experts eventually divided that number by 24 hours and came up with 12,000 BTU/1-ton AC capacity. Using that measurement, a two-ton AC unit will remove 24,000 BTUs, while a three-ton AC unit will remove 36,000 BTUs. Therefore, the more tonnage the AC unit is rated for, the more air it can cool down.