The Fieldpiece manometer operation manual says that the tip should be pointed toward airflow and that the arrow on the baseplate should be pointed towards airflow not with airflow. I may have misunderstood, but it appears you recommend putting it in the opposite direction as what the manual states. Is there a reason why you recommend positioning it in the opposite direction? Again thank you for all the helpful videos!
Yes, that’s right Caleb. I misspoke in the class even though I displayed it installed correctly. I think my comment mislead the editor, so we have the visual with red airflow arrow pointed backwards. Also @me’s comment is nearly always true. It doesn’t practically matter with the airflow in most residential systems
A manometer measures differential pressure. You need differential in order for flow to commence . Same concept is in use with hydronics, temp etc etc.....its about inducing flow with the smallest differential (head loss, friction loss )needed to operate properly to achieve a set parameter. We use this in large commercial equipment. I work on equipment with a design static of 1.5", 2", 2.5" wc with VAV's, building pressure. In hydronic systems we use differential pressure set points to modulate VFD'S based on differential readings for when zones, coils,bypass valves etc etc shut down.
Upgrading my havac system with quality filtration, they didn’t seem to care about that much back in the day, but these old houses have filthy air quality.
👍🏻 ok. What type units you working on? I’ve only taken this measurement on a few residential units over the years. .1 seams to be a common read I have on new clean coils
Probably because hes referring to a pressure drop on a brand new, dry, coil only. Only reason to check coil only in the field is to confirm airflow restriction so I wouldnt expect to static that low. Its decent baseline for comparison.
The Fieldpiece manometer operation manual says that the tip should be pointed toward airflow and that the arrow on the baseplate should be pointed towards airflow not with airflow. I may have misunderstood, but it appears you recommend putting it in the opposite direction as what the manual states. Is there a reason why you recommend positioning it in the opposite direction? Again thank you for all the helpful videos!
Do it both ways. Even do it with just the hose and no tip. You won’t see an appreciable difference in any of the measurements
Yes, that’s right Caleb. I misspoke in the class even though I displayed it installed correctly. I think my comment mislead the editor, so we have the visual with red airflow arrow pointed backwards.
Also @me’s comment is nearly always true. It doesn’t practically matter with the airflow in most residential systems
Bert is an asset with many talents 😆 his dry delivery is actually very effective
Great job Bert!
A manometer measures differential pressure. You need differential in order for flow to commence . Same concept is in use with hydronics, temp etc etc.....its about inducing flow with the smallest differential (head loss, friction loss )needed to operate properly to achieve a set parameter.
We use this in large commercial equipment. I work on equipment with a design static of 1.5", 2", 2.5" wc with VAV's, building pressure. In hydronic systems we use differential pressure set points to modulate VFD'S based on differential readings for when zones, coils,bypass valves etc etc shut down.
Upgrading my havac system with quality filtration, they didn’t seem to care about that much back in the day, but these old houses have filthy air quality.
Hey Bert, I have never seen an evaporator coil with a static across it of only .1 if I understood what you said.
👍🏻 ok. What type units you working on? I’ve only taken this measurement on a few residential units over the years.
.1 seams to be a common read I have on new clean coils
Probably because hes referring to a pressure drop on a brand new, dry, coil only. Only reason to check coil only in the field is to confirm airflow restriction so I wouldnt expect to static that low. Its decent baseline for comparison.
just wondering how are you getting an accurate static won't the hose to the wireless probe get pinched in the door was just wondering
I drilled a hole into the cabinet.
0:20 .... Furnace is totally air-conditioning !
Simple but effective
resistance???
yes, resistance. what about it?
Wow this vagrant really knows static pressures
For a start, he draws much better than you Bryan😂
How do you check a static on a front draw over the water heater style air handlers?
This one was too basic. I feel like it could of been done in 5 minutes. manual D is the best when it comes to this type of things.
Great feedback 🙏❤️