Kenmore 70089 - Manual (Page 5)

Sizing Instructions
Many complaints about room air conditioners result
from units that are over-sized or under-sized for a given
area. Over-sized units cool an area before humidity can
be adequately removed, so air feels cold and clammy.
Under-sized units do not sufficiently cool an area.
The following table contains guidelines for properly
sizing a room air conditioner for a given area.
To size unit;
1. Determine size (in square feet) of area to be cooled;
locate square footage In far left column of table
below.
2. Choose right-hand column showing location of room
in building:
• Room below attic; insulated ceiling above.
• Room with occupied room above.
■ Top floor under insulated roof.
3. Follow down right-hand column, reading horizontally
from square footage to find approximate air
conditioner capacity (in Btus per hour) required to
adequately cool designated area.
NOTE: When determining size of unit, also consider
conditions at bottom of table. For best results,
choose air conditioner with cooling capacity
(Btus per hour) closest to, but not exceeding,
estimated size.
Required Air Conditioner Cooiing Capacity—Btu/hour
Size of Area
to be Cooled
(in square feet) Room below
attic; insulated 4^
ceiling above □□
Room with /\
occupied
room above EJ
Top floor under j ■
insulated roof
(no attic)
Li—1
100 3500 to 4000 4000 to 4500 4500 to 5000
150 4000 to 5000 4500 to 5000 5500 to 6500
200 4500 to 5500 5000 to 6000 6000 to 7000
250 5000 to 6000 5500 to 6500 7500 to 8500
300 6000 to 7000 6500 to 7500 8500 to 9500
350 6500 to 7500 7000 to 8000 10000 to 11000
400 7000 to 8000 8000 to 9000 11000 to 12000
450 7500 to 8500 8500 to 9500 11500 to 12500
500 8000 to 9000 9500 to 10500 13000 to 14000
600 9500 to 10500 11000 to 12000 15000 to 16000
700 10500 to 11500 12000 to 13000 17000 to 18000
800 11500 to 13000 13500 to 14500 19000 to 20000
900 12500 to 14000 14500 to 16000 21000 to 22000
1000 13500 to 15000 15500 to 17000 23000 to 24500
1200 16000 to 17500 18000 to 20000 26500 to 28500
1400 18000 to 20000 21000 to 23000 30500 to 32500
1600 20000 to 22000 23000 to 25000
1800 22000 to 24000 25500 to 27500
2000 24000 to 26000 28000 to 30000
Additional conditions:
• If normal occupancy of area is more than two people, add 600 Btu/hour per person. If normal occupancy is one
person, subtract 600 Btu/hour.
• Add 1200 Btu/hour if area includes a kitchen.
• If room is heavily shaded, subtract 10 percent from total capacity. Increase by 10 percent if area is very sunny.