Below is a breakdown of the core HVAC calculations you can perform effectively in Excel, along with the logic to build them.
Link pipe diameter to a SWITCH or IFS function based on GPM ranges (e.g., 2–4 GPM = ¾", 4–8 GPM = 1"). Add a pressure drop per foot column using the Darcy-Weisbach equation or a simplified polynomial fitted to manufacturer data. hvac design calculations excel
Excel excels at handling the repetitive yet formulaic nature of heat gain calculations. The most common manual method is the CLTD/CLF/SCL (Cooling Load Temperature Difference / Cooling Load Factor / Solar Cooling Load) method. Below is a breakdown of the core HVAC
While specialized software like Carrier HAP or TRACE exists, Excel remains a staple in the industry for several reasons: 2–4 GPM = ¾"