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Thread: Load Calculation
11-08-2012, 05:14 PM #1Regular Guest
- Join Date
- Aug 2012
I just stated school for HVAC about 4 months ago I am in a load calculation course which is just plan overwhelming. A lot has to do with the teacher teaching it who is not doing a good job of it. Do HVAC companies usually have computer software to calculate heat gains or loss and what size system to install? Do professionals walk in with a pen and paper and start calculating all these factors in determining size of unit?
11-08-2012, 05:18 PM #2
Software is a crutch....Do I use software? Hell yes . Can I do it the long way?...yep because doing it the long way teaches you the fundamentals as opposed to not knowing where the numbers come from. It you get a "non-standard" wall assembly....you can figure out what the best answer is.It's not the Brand with the fewest repairs-It's all in the install!!! Attention to detail and using the best materials!
11-08-2012, 07:11 PM #3
11-10-2012, 11:31 AM #4Professional Member*
- Join Date
- Jul 2000
- Northern Wisconsin
Load calculations are just that calculations. Information is put into mathmatical formulas and out comes answers. Software or not, someone has to gather and input the information. Input sheets are critical in doing load calcs so that if you're experience tells you the answer the software came up with doesn't sound ........ right, you have your hand written input sheets to go back and see if you input the correct figures. The smallest little mistake can make MAJOR changes in the outcome.
Take from your classes the "why" of the information so that when you start doing it for a living you will be able to feel certain the answer you get is accurate.Use the biggest hammer you like, pounding a square peg into a round hole does not equal a proper fit.
11-20-2012, 09:37 PM #5
Believe me, you will get through it. Most important part is the field measurements. Doing it manually is a very good exercise to gaining a full understanding of the whole process. If you only use a software program, you will be lost without it. By being able to do the pen and paper method, you will be able to "think on your feet" when the odd situation arises.
HTHCan someone please explain to me -
Why is there never enough time to do it right the first time, but plenty of time to do it twice?
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