Toolbox Tuesday: How to Determine Total Static Pressure | Lennox
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- čas přidán 27. 08. 2024
- How to determine total static pressure. Tips and tricks on how to do an AC Tune-Up on #ToolboxTuesday. What do you do differently? What works for you? Comment below.
Toolbox Tuesday covers how to use tools, accessories, tips, hacks and best practices of the HVAC industry. Learn about HVAC, duct, coil, flame sensor, sequence of operations, electrical, condensate lines, ohms law, air distribution tools and more.
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I've called 6 hvac guys that either didn't know how, didn't have a mannometer or 3 that didn't text or call me back when i said i wanted to measure static pressure. Great tutorial
I have used magnehelics for 39 years in conjunction with a dwyer 400-10 or 400-23 inclined manometer ( still very accurate and reliable but slower ). I like the convenience of the blue tooth digital ( very fast ,easy and compact ). I always log flow measurements on new , freshly cleaned equipment and leave a little record in the unit data package for reference. thanks for the video , well done Sir.
Thank you. Short and to the point. 👍 Cleared up my confusion of.... total. I thought it included the ac coil as well and had my tube after the coil.
Wish I had Utube 30 years ago when I first started HVAC. Still learning everyday. But I am too old to care now.
and some kids outhere think they now everything..
Very well explained and good job on the presentation.
The Magnehelic is the best. The facility I work at has one on every air handler on the return and supply side. When checking static on 16 air handlers and so which are the size of a small house lol these make it very easy
Excellent tutorial!
Thank you so much for sharing your knowledge. It is much appreciated
Good information .
Double check that probe orientation, assuming thst is an upflow. Other videos state the point must go in the direction of the flow. Which is correct?
Just like he states in this video, pointing against the air flow.
I though that too, only when it's a twin pitot (with a static port) have I seen it point in to the air flow otherwise it's measuring the velocity pressure? Confused now...
Good video on it
czcams.com/video/45gX7Jb60JM/video.html
From what I've read it doesn't really matter as long as it's inline with the flow and not perpendicular. In practice I see very little difference in pressure when rotating tip in either direction. But more often than not I see instructions to point into direction of the source so head-on.
Good job
Love the tool box tuesday tips and tricks! Great job guys!
HVAC Learning Solutions. I think Psychrometrics would be a good thing to cover. There are too many hesitant reactions whenever psych chart gets brought up.
Its all confusing to me I just had an energy assessment done all of my vents was .2 and my return was .7 with no filter those numbers didn't change when they tested with new filter in place. My system is a 4 ton air handler and condenser with a 3-5 ton capable evap coil. Evaluator said I am undersized by a ton for a 2,800 square foot manufactured home. I wonder what effect upgrading to a 5 ton overall system will have on those numbers?
is the total static pressure same as total external static pressure, same to the external static pressure? T.E.P = T.E.S.P = E.S.P ?
Very concise video. Minor point: you called your static probe a pitot tube which is quite different. So @ 6:53 I see you have a total static of .71 which is .21 over the max for that system correct? And what would you consider the culprit in a real world situation with those numbers, restriction in the return is high and maybe filter? I'm getting similar @ .91 TESP, return .61 and supply air .3.
lower is better, but not too low. 0.5 in in the middle, personally i say 0.3 is the best you can hit. Measure before and after the ac coil, see the drop there. Its probably dirty to shit, also do the return and supply of just the furnace, your secondary coil could be plugged solid
@@xposed11 secondary coil?
-0.52 + 0.19 = -0.32. you're saying this is our total static pressure?