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Friday, March 29, 2019

HVAC for Residential New Construction - By Rob Sherwood




File Size: 2.76 Mb

Description
HVAC systems need to be properly sized to optimize occupant comfort even amid the harshest outdoor conditions. If a unit is oversized, energy costs may increase and the home may experience high temperature swings during milder weather. Oversizing also increases the equipment’s initial cost, savings better spent on purchasing more efficient equipment. Determining the proper size for the HVAC system requires estimating heat loss (known as the design heat load) through the roof, walls, windows, basement, and other home components bordering unfavorable outdoor weather conditions. The system size is then matched to the design heat load. For many combustion appliances, the size of the unit selected will be 10 to 30 percent above design heat load. This oversizing allows the unit to recover quickly from night setback. 

Content:-
•HVAC Rater Checklist
•HVAC Contractor Checklist

1. How to Verify a Heating and Cooling Load Calculation
2. What is Behind a Load Calculation
3. Manual S
4. Residential Duct Design
5. ACCA Standard 5

Author Details
Presented by: 
"Rob Sherwood"




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