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Section 1 Basic Information

1-6

How to Choose a Room Air Conditioner

Compared to large capacity central units, room air conditioners have several advantages. The initial cost of a room air

conditioning unit is signi

cantly lower that the cost of central air. Because room air conditioners are designed for

cooling small spaces, operating costs are reduced. And, r

oom air conditioners can provide personalized temperature

and humidity controls that central systems cannot.

Calculating Cooling Capacity

Cooling capacity is the critical factor in properly selecting a room air conditioner. Cooling capacity is measured in Brit-

ish Thermal Units (BTUs) and typical models will range in capacity from 5,000 BTUs to 28,500 BTUs. Choosing an

undersized unit will overwork the unit and it will not cool properly. Choosing an oversized unit will cost more to buy

and operate and it will not dehumidify properly. Your dealer can help you to calculate capacity. Be prepared to provide

speci

c information on:

Cooling Capacity by Room Size

Measure the length and width of the area to be cooled. Multiply the length by the width to determine square footage

or square meters. Locate the room size in the chart below to

select the appropriate BTUs. Then use the product infor-

mation to select the unit for your room.

Room Size BTU

Sq. Feet. Sq. Meters

150 14 Up to 5,000

165 15 5,200

216 20 6,000

350 33 8,000

425 39 9,000

500 46 10,000

640 60 14,000

900 84 15,100

1,110 103 18,000

1,170 109 18,500

1,435 133 22,000

1,672 154 25,000

1,960 182 28,500

next BTU size or consult your sales professional.

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Sharp 2020215A0343 Service Manual

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