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CITY OF SANTA ANA <br />Planning and Building Agency <br />RESIDENTIAL ROOM COOLING LOAD SUMMARY <br />FOR PERMIT ISSU <br />Project Name <br />Date <br />SINGLE HOUSE ADDITION <br />1 111612026 <br />ROOM INFORMATION <br />DESIGN CONDITIONS <br />Master ID: <br />Room Name EXISTING AREA <br />Outdoor Dry Bulb Temperature <br />Date: <br />91 OF <br />Floor Area 1,097.00 ft2 <br />Outdoor Wet Bulb Temperature <br />70 °F <br />Indoor Dry Bulb Temperature 78 OF <br />1 Outdoor Daily Range: <br />26 OF <br />Opaque Surfaces Orientation Area U-Factor <br />CLTD' <br />Btu/hr <br />Default Roof (N) 1,097.0 X 0.3041 <br />X <br />38.0 = <br />12,678 <br />Default Wall (W) 15E8 X 0.6459 <br />X <br />14.0 = <br />1,418 <br />Default Wall (E) 211.6 X 0.6459 <br />X <br />14.0 = <br />1,914 <br />Default Wall (N) 279.8 X 0.6459 <br />X <br />4.0 = <br />723 <br />Default Wall (S) 239.3 X 0.6459 <br />X <br />7.0 = <br />1,082 <br />'Default Wall 119.2 X 0.6459 <br />X <br />0.0 = <br />0 <br />Default Floor Crawlspace 11097.0 X 0.1964 <br />X <br />5.0 = <br />1.077 <br />X <br />X <br />= <br />X <br />X <br />= <br />Page <br />Total <br />18,892 <br />Items shown with an asterisk (') denote conduction through an interior surface to another room. <br />1. Cooling Load Temperature Difference (CLTD) <br />Shaded <br />Unshaded <br />Fenestration Orientation Area GLF <br />Area <br />GLF <br />Btu/hr <br />WINDOWS (W) 0.0 X 35.3 + <br />12.0 <br />X 88.3 = <br />1.059 <br />WINDOWS (E) 0.0 X 35.3 + <br />68.4 <br />X 88.3 = <br />6.037 <br />WINDOWS (N) 0.0 X 35.3 + <br />9.0 <br />X 35.3 = <br />317 <br />WINDOWS (S) 0.0 X 35.3 + <br />41.5 <br />X 41.7 = <br />1,732 <br />X + <br />X <br />X + <br />X = <br />X + <br />X = <br />X + <br />X = <br />X + <br />X = <br />Page Total <br />9,146 <br />Internal Gain <br />Btufhr <br />Occupants 3.3 Occupants X 245 <br />Btuh/occ. <br />= <br />806 <br />Equipment 1.097 Floor Area X 0.50 <br />w/sgft <br />= <br />1,872 <br />Infiltration: 1.075 X 0.65 X 40.22 X 13 = <br />365 <br />Air Sensible CFM ELA AT <br />TOTAL HOURLY SENSIBLE HEAT GAIN FOR ROOM <br />31,081 <br />Latent Gain <br />Btu/hr <br />Occupants 3.3 Occupants X 155 <br />Btuh/occ. <br />= <br />510 <br />Infiltration: 4,822 X 0.65 X 40.22 X 0.00069 = <br />87 <br />Air Latent CFM ELA AW <br />TOTAL HOURLY LATENT HEAT GAIN FOR ROOM <br />597 <br />NCE <br />