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How_you_calculate_the_size_of_an_air_conditioner_for_a_room
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Calculating your air conditioning requirements
Heat Load
The amount of heat generated is known as the heat gain or heat load. Heat is measured in either British Thermal Units (BTU) or Kilowatts (KW). 1KW is equivalent to 3412BTUs.
The heat load depends on a number of factors, by taking into account those that apply in your circumstances and adding them together a reasonably accurate measure of the total heat can be calculated.
Factors include:
Floor Area of Room
The amount of cooling required depends on the area of the room. To calculate the area in square metres:
Room Area BTU = Length (m) x Width (m) x 337
Window Size and Position
If, your room has no windows, you can ignore this part of the calculation. If, however there are windows you need to take the size and orientation into account.
South Window BTU = South Facing window Length (m) x Width (m) x 870
North Window BTU = North Facing windows Length (m) x Width (m) x 165
If there are no blinds on the windows multiply the result(s) by 1.5.
Add together all the BTUs for the windows.
Windows BTU = South Window(s) BTU + North Window(s) BTU
Occupants
You will have to take that into account people who normally working in the space. The heat output is around 400 BTU per person.
Total Occupant BTU = Number of occupants x 400
Equipment
Clearly most heat in a room is generated by the equipment. This is trickier to calculate that you might think. The wattage on equipment is the maximum power consumption rating, the actual power consumed may be less. However it is probably safer to overestimate the wattage than underestimate it.
Equipment BTU = Total wattage for all equipment x 3.5
Lighting
Take the total wattage of the lighting and multiply by 4.25.
Lighting BTU = Total wattage for all lighting x 4.25
Total Cooling Required
Add all the BTUs together.
Total Heat Load = Room Area BTU + Windows BTU + Total Occupant BTU + Equipment BTU + Lighting BTU
This is the amount of cooling required so you need one or more air conditioning units to handle that amount of heat.
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my house has 1800 sq ft how bif of a ac unit do I need?
What is the tonnage of a carrier ac unit 24ABB360A0032010
What is the tonnage of york a AC model CM30-6a
2.5 tons
The capacity of a split AC can be determined by a simple formula. The voltage of the AC connector and the size of the room are the two factors that determine the capacity.
how to find out tonage
Three ton.
There is no set tonnage rating for furnaces, only the ac units which are attached to them. Since furnaces with multiple blower motor speeds can accommodate several different size ac units. To get your ac units tonnage, get the model # of the outdoor unit and repost.
one ton
2 ton
2 ton
3 ton
2 tons.