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Thanks for the info leatherneck, though this still doesn't explain ESP. I understand "total static pressure", and, "delta P" and pressure drops accross water coils and the like. Maybe External Static Pressure isn't realy a correct term to be used in this field? Iv'e never...

steve, Good luck getting someone to answer that question. I have been in the trade for 16 years now, and have had this come up several times, the E.S.P. question that is. Rockhead (Mechanical) Feb 16, 2001 I also have a similar question regarding "External Static Pressure". When...

Hello, This site will give you plenty of information to help you with your project. http://www.nadca.com/ NADCA has a downloadable list of duct cleaning standard, and preferd methods of actual equip. to be used for the task. Also will help inform you on what to look for in a...

I also have a similar question regarding "External Static Pressure". When viewing BLOWER DATA info on, for example, Trane XV80 gas furnace, External Static Pressure is always a factor on the chart, and is a fairly important one. Where, and at what point exactly, do you insert...

Rockhead, Feb 10, 2001 I also have a similar question regarding "External Static Pressure". When viewing BLOWER DATA info, on for example, Trane XV80 gas furnace, External Static Pressure is always a factor on the chart, and is a fairly important one at that I'm sure. Where...

I also have a similar question regarding "External Static Pressure". When viewing BLOWER DATA info, on for example, Trane XV80 gas furnace, External Static Pressure is always a factor on the chart, and is a fairly important one at that I'm sure. Where and at what point exactly...