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Earnie 01-21-2011 03:20 PM

Static Pressure Diagnostic Testing
Watch this video (both parts). Have you ever seen your HVAC company perform this important diagnostic test on your system?

For me, No.

beenthere 01-21-2011 05:06 PM

Shawn is a tech rep, and he made a good video there. With 1 minor mistake. I brought it up to him. He won't admit it though.

hvaclover 01-21-2011 05:20 PM

You mean where he inserts one of the pitot tube tip in the wrong direction to the air flow?

beenthere 01-21-2011 05:40 PM

No, he's using A303 static probes. The holes are on the sides, so they can point either way.

Its not what he did, as much as what he said.

hvaclover 01-21-2011 05:47 PM

I read the post where he got busted on the probe.

beenthere 01-21-2011 06:03 PM


Originally Posted by hvaclover (Post 575238)
I read the post where he got busted on the probe.

The probes he is using in that video can be pointed with or against the air flow. makes no difference. I use the same probes,and have turned them while checking units. Same reading in either direction.

Pitot tubes would be a different story.

Marty S. 01-22-2011 07:49 AM

Many times Earnie. Static pressure readings are part of our start up check list on all new equiptment. Didn't used to be that way but about 10 years ago the electric company required TESP on the rebate forms as part of the heat pump performance verification. That really opened my eyes so besides start up the magnaghelic comes out any time a problem is showing a possible air flow issue.

Earnie 01-22-2011 10:04 AM

Hi Marty,

That is good to hear.

I have been through three Trane Comfort Certified companies and non have checked SP. These were companies that had never looked at my system before. You would think that being called to a new customers house you would want to do a thorough system check.

Most of the time all I have seen them check is coolant pressure. One did check amp readings. No one checked SP or air flow at each room supply.

It's unfortunate that I have to learn about HVAC to make sure my system is operating efficiently.

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