9 HVAC basics –Load Hours HVAC load hours may be calculated from degree days using a formula which incorporates Outside Design Temperatures. Cooling L
{"Image DocumentName": "HVAC basicsLoad Hours. HVAC load hours may be calculated from degree days using a formula which incorporates Outside Design Temperatures.", "Image ImageDescription": "Cooling Load Hours (CLH) = CDD x 24 / (Cooling Outside Design Temperature \u2013 65\u00b0F) Cooling Outside Design Temperature (ODT) is in the range of 70\u00b0F to 105\u00b0F. Heating Load Hours (HLH) = HDD x 24 / (65\u00b0F \u2013 Heating Outside Design Temperature) Heating Outside Design Temperature (ODT) is typically between -12\u00b0F and 40\u00b0F. It is necessary to reduce the heating load hours by about 40% to match actual energy consumption.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}