Kenmore 70129, 78189, 70089, 78079 owner manual Sizing Instructions

Sizing Instructions

Many complaints about room air conditioners result from units that are over-sized or under-sizedfor 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.

	Required Air Conditioner
Size of Area
to be Cooled	attic; insulated
	Room below
(in square feet)	ceiling above
100	3500 to 4000
150	4000 to 5000
200	4500 to 5500
250	5000 to 6000
300	6000 to 7000
35O	6500	to 7500
4OO	7000	to 8000
450	7500 to 8500
5OO	8000 to 9000
60O	9500 to 10500
700	10500	to 11500
800	11500	to 13000
9OO	12500	to 14000
1000	13500	to 15000
1200	16000	to 17500
1400	18000	to 20000
1600	20000	to 22000
1800	22000	to 24000
2000	24000	to 26000

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 lind 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.

Cooling Capacity--Btu/hour
			Top floor under
occupied			insulated	roof
Room with			(no attic)
room above
4000 to 4500			4500 to 5000
4500		to 5000	5500 to 6500
5000		to 6000	6000 to 7000
5500		to 6500	7500 to 8500
6500		to 7500	8500 to 9500
7000		to 8000	10000	to 11000
8000		to 9000	11000	to 12000
8500		to 9500	11500	to 12500
9500	to 10500		13000	to 14000
11000	to 12000		t 5000 to 16000
12000	to 13000		17000	to 18000
13500	to 14500		19000	to 20000
14500	to 16000		21000	to 22000
15500		to 17000	23000	to 24500
18000		to 20000	26500	to 28500
21 000 to 230O0			30500	tO 32500
23000 to 25000
25500		to 27500
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.