Friedrich 2008, 2009 Cooling Load Estimate Form, Heat Gain from Quantity Factors, Day

COOLING LOAD ESTIMATE FORM

HEAT GAIN FROM					QUANTITY	FACTORS				BTU/Hr.
						DAY
									(Quantity x Factor)
1.	WINDOWS: Heat gain from the sun.					No	Inside	Outside		(Area
						Shades*	Shades*	Awnings* X Factor)
	Northeast	*	These factors are for single glass		____sq. ft.	60	25	20 ____		Use	____
	East				____sq. ft.	80	40	25 ____		only	____
			only. For glass block, multiply the
	Southeast				____sq. ft.	75	30	20 ____		the	____
			above factors by 0.5; for double
	South				____sq. ft.	75	35	20 ____		largest	____
			glass or storm windows, multiply the
	Southwest		above factors by 0.8.		____sq. ft.	110	45	30 ____		load.	____
	West				____sq. ft.	150	65	45 ____		Use	____
	Northwest				____sq. ft.	120	50	35 ____		only	____
	North				____sq. ft.	0	0	0 ____		one.	____
2.	WINDOWS: Heat by conduction
	(Total of all windows.)										_____
	Single glass				____sq. ft.		14
	Double glass or glass block				____sq. ft.		7				_____
3.	WALLS: (Based on linear feet of wall)				Light Construction			Heavy Construction
	a. Outside walls										_____
	North Exposure				____ ft.	30		20
	Other than North exposure				____ ft.	60		30			_____
	b. Inside Walls (between conditioned and										_____
	unconditioned spaces only.)				____sq. ft.		30
4.	ROOF OR CEILING: (Use one only)										_____
	a. Roof, uninsulated				____sq. ft.		19
	b. Roof, 1 inch or more insulation				____sq. ft.		8				_____
	c. Ceiling, occupied space above				____sq. ft.		3				_____
	d. Ceiling, insulated, with attic space above				____sq. ft.		5				_____
	e. Ceiling, uninsulated, with attic space above				____sq. ft.		12				_____
5.	Floor: (Disregard if floor is directly on ground or				____sq. ft.		3				_____
	over a basement.
6.	NUMBER OF PEOPLE				____		600				_____
7.	LIGHTS AND ELECTRICAL EQUIPMENT IN USE				____watts		3				_____
8.	DOORS AND ARCHES CONTINUOUSLY										_____
	OPENED TO UNCONDITIONED SPACE: (TOTAL				____ft.		300
	LINEAR FEET OF WIDTH.)
9.	SUBTOTAL				*****		*****				_____
10. TOTAL COOLING LOAD (BTU per hour to be used
	for selection of room air conditioner(s).)			____ Total in Item 9 X ____			(Factor from Map) =				____

5

60