Cooling Capacity Tonnage Calculation

Most people asked us: How to calculate the tonnage or HP (horsepower) for Air Conditioning equipment and Cold Room refrigeration system? Well, actually there are many aspects can affect the cooling performance of refrigeration equipment, cooling capacity is the most important one. As our 13+ years experience, believe we can provide the most suitable solution for your project.

BTU to Tonnage

Tonnage to BTU

BTU to Tonnage

Tonnage to BTU

Notice: Cooling performance will be affacted by many other factors: room set temp, ambient temp, humidity, ventilation, installation height, etc. So please tell us more details about your project, we will give you the most suitable solution. For more request, please contact us freely.

Low Temp

High and Medium Temp

Low Temp

High and Medium Temp

Question: How to calculate which HP(horsepower) refrigeration system ( condensing unit or unit cooler) should need for my cold room?

Answer: Well, 1) calculate your room dimension: Length*Width*Height, 2) divided by coefficient.

Low set temp (<-20°C): Volume/11

High and medium set temp(>-15°C): Volume/14

For example:

1) Cold room size: 6*6*3m, room set temp -20°C

So you need Refrigeration HP= 108m3 / 11 = 9.8 ≈ 10hp

2) Cold room size: 6*6*3m, room set temp -5°C

So you need Refrigeration HP= 108m3 / 15 = 7.2 ≈ 7hp

Cold room panel is the essential component for cold room, but many people don’t know how to calculate the whole panel area for a cold room? First, you should calculate all the 6 sides of the cold room: roof + wall + floor. Second, you should know the set temperature for the cold room, because different set temp use different thickness panel (means different price):

Panel Thickness	Panel Material	Panel Connection	Cold Room Set Temp
75mm	PU/PIR	Camlock / Slip Joint	>0°C
100mm	PU/PIR	Camlock / Slip Joint	0 ~ -15°C
150mm	PU/PIR	Camlock / Slip Joint	-15 ~ -35°C
200mm	PU/PIR	Camlock / Slip Joint	<-35°C

Panel Cost (m2)

Panel Cost (sq.ft)

Panel Cost (m2)

Panel Cost (sq.ft)

Attention: Panel cost will vary due to the raw materials’ cost changing. So before you calculate the total cost for your cold room project, please contact us to verify the newest unit price.