Checking The Incoming NATURAL and PROPANE GAS PRESSURE with a Manometer for Appliances!

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Checking The Incoming NATURAL and PROPANE GAS PRESSURE with a Manometer for Appliances!
This HVAC video is about how to check the incoming gas pressure with a digital manometer for appliances such as furnaces, water heaters, etc. I go over what both Natural Gas and Propane pressures should be as well as what some furnaces run through the electrical gas valve inside the unit. I show a simple tool that you can make to accommodate a simple test for incoming pressure as well as other tips! Supervision is needed by a licensed HVAC Tech before doing this as Experience and Apprenticeship garners Wisdom and Safety.
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
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2 сен 2016

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Комментарии : 78

@acservicetechchannel 7 лет назад

Tool List- www.amazon.com/shop/acservicetech Support- www.patreon.com/acservicetech For those that are looking for the tools used in the videos: (Linked Below) Here is the Link for the Yellow Jacket Refrigerant Manifold Gauge Set used in the videos- amzn.to/2aenwTq Here is a link to Refrigerant hoses with valves used in the videos- amzn.to/2aBumVI Here is a link to the UEI DL389 Multimeter used in the videos- amzn.to/2av8s3q Here is a link to the Hilmor 4 port Aluminum Manifold Gauge Set- amzn.to/2m4QLik Here is a link to the Digital Refrigerant Scale used in the videos- amzn.to/2b9oXYl Other tool links can be found in the video description section. ACSERVICETECH is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

@moisessanchez870 5 лет назад

Can you test a pressure switch with that manometer?

@seanmcdermott5718 7 лет назад

I just want to thank you for the lessons you post every week . Ive been in the trade for 3 years now and I watch your channel all the time after work . I can honestly say that Im a much better tech today bc I can always reffer to your vids for help . I live my job now bc Im killing it everyday ! And my colleauges actually call me for help on jobs they are struggling with .. Awesome AC service Tech!

@acservicetechchannel 7 лет назад

That's really awesome to hear Sean! Thanks for letting me know how much you use and appreciate the videos!

@larryeaton7384 3 года назад

Excellent communication skills! Vital information for the serious home owner craftsman! Never put your families life in the hands of an everyday contractor! Prove it all out for yourself and sleep well knowing your family is secured from harms way! Damn good video!

@mxm7688 3 года назад

always one of the best explanations my friend, good job, thank you

@acservicetechchannel 3 года назад

Glad it was helpful!

@efman2k3 7 лет назад

Awesome video. Thanks for posting!

@acservicetechchannel 7 лет назад

Glad to help!

@Pretzel114 7 лет назад

Hi ACSERVICETECH! Nice video, I never thought of making a test cap like that. Thanks for the knowledge.

@acservicetechchannel 7 лет назад

Glad to help! Yup, you can make one for 1/2", 3/4", 1" as they are the common drip tee sizes.

@faridjahed 5 лет назад

AC Service Tech LLC how do you make a test cap

@honolulu1476 7 лет назад

Thank you very much for the great video.

@acservicetechchannel 7 лет назад

Thanks for your Comment Alex!

@JaredBrave 4 года назад

Hello, and thank you for the great video. Liked & subscribed. One question, if I am using a dual port (-/+) manometer, how do I measure gas pressure? (I'm assuming I couple the two ports to get a single reading, since using both ports would measure pressure difference.) Thanks!

@jimbola77 7 лет назад

wowwww always looking forward to your excellent video's iv'e learned so much thank you for sharing!!!!!

@acservicetechchannel 7 лет назад

Thank you very much! That black reducer came from my old Yellow Jacket gas pressure test set but you don't need it if you have the right brass barb fitting size. Thanks!

@drummerdem50 7 лет назад

Great video , learned a new trick. Thanks again.

@acservicetechchannel 7 лет назад

Great to hear, glad you enjoyed it!

@johnmiller102 7 лет назад

Nice video. Good tip! Thanks for posting it.

@acservicetechchannel 7 лет назад

Thanks John!

@enzoamore9173 4 года назад

Can you tell me what causes the chimney to condense on a natural gas boiler?

@Joefred77 2 года назад

Do you have to regulate the pressure coming in ass well, I thought you do that on the outlet of the gas valve

@steveo7624 6 лет назад

please do a test digital verse the analog meter ,you do a great job thank you ac service tech

@acservicetechchannel 6 лет назад

Stephen, thanks for the video idea!

@rickybrown6585 2 года назад

Thanks dude 🤙I love humble smart techs...I only see them on youtube

@abazism 2 года назад

Hi, my UEI doesn’t have WC selection, it has other ones. Can you plz tell me witch one I need to select to read natural gas, thanks

@l.a.m7645 3 года назад

The UEI EM151 is discontinued. What UEI manometer do you recommend?

@dougrayburn3779 2 года назад

Thank you for your “service”

@whitesheatingairappliancer7101 7 лет назад

Great video, thank you. So after you test gas pressure on the line, you set your gas pressure on the furnace?

@acservicetechchannel 7 лет назад

Yes you would move the brass barb fitting downstream of the electrical gas valve at the end of the gas valve when diagnosing and adjusting pressure. I will be making a lot more videos on furnace diagnosis along with gas lines and pressure adjustments. Thanks

@ritewayguy 7 лет назад

Where did you get the rubber cap reducer for the barb to the manometer tubing? I know of them, but can't find where to buy. thanks

@acservicetechchannel 7 лет назад

I got mine from my gauge type manometer but Johnstonesupply.com does sell just that piece.

@Tradesmen 2 года назад

God stuff. I'd change out the way that sediment trap is set up though. 😉👍

@brianrichardson4518 6 лет назад

I'm currently a plumber but will be trained in HVAC. Can a dual port manometer also be used for this type of pressure check? I currently have a Dwyer single port but am looking at a few dual port options. I also need a dual port for testing gas pressures on some tankless water heaters.

@acservicetechchannel 6 лет назад

I love the SDMN6 because I also use the internal pump to verify condition of pressure switches as well as pressure differentials and measuring gas pressures. Yes you can use a dual for a single function. You could look up "acservicetech sdmn6" I also have that tool linked in the description sections and at amazon.com/shop/acservicetech thanks!

@forzamilan07 2 года назад

Notice how when you shut the valve off it began to drop. Does that determine a leak? Or could it be a regulator/valve burping possibly

@outlawdiesel5221 Год назад

I believe the regulator/valve has a vent, once gas pressure is shut off it vents excess pressure. I could be wrong.

@timtalon4645 4 года назад

Thanks for the video. Absolutely blows be away that these digital manometer tools make it so that people have to make up their own connection adaptors....and then to reply on a barb fitting tube. I'm new to all of this, but c'mon manufacturers....this is a joke. Thanks again for the helpful video on how to work with this lack of a complete tool!

@robertpage1590 4 года назад

You can make a fitting out of various fittings, you don't have to drill into a cap

@fvfgx 7 лет назад

one quick ? I think I kinda know half of it maybe. hear it is, to make straight air with electric heat to a heat pump you replace the condensing unit,T Stat thats heat pump compadible and six wire and a biflow filter dyer or is there air handler only designed for heat pump only

@acservicetechchannel 7 лет назад

just make sure that the txv is not a single directional and that it will bypass. It is also good to add the outdoor sensor so you can turn the heat pump off automatically if the temp goes down too low and only the strip heating on.

@Adam-ek8bi 3 года назад

How do you seal the hole you drilled in the cap?

@MacMilly707 2 года назад

You don't . have to replace with new.

@mx-lj4qq 4 года назад

where do i buy one?

@brianphilip6296 3 года назад

Is the only way to increase the WC is to increase the pipe size? I have 7 WC going into my tankless Takagi WH, but the instructions are calling for a minimum of 8.0" of WC

@bkoz319 Год назад

propane? what size pipe do have ran to the tankless?

@frankwiddifield7520 4 года назад

Would 10" of NG water column cause any issues running a 400,000 btu pool heater?

@frankwiddifield7520 4 года назад

I ask cause it seems high a heat is having ignition faults.

@acservicetechchannel 4 года назад

It should likely reduce before the heater but you can tell by reading the rating plate and the manufacturers literature for that unit, thanks!

@MrBozneckruff 2 года назад

What if the gas pressure is high or too high coming from a LP tank?

@mafosa8519 Год назад

That’s what I was wondering. Maybe turn down the “shut off valve” a little. Or not enough pressure?.. bigger hose or lines?….

@jimbola77 7 лет назад

where do I get the port with cap with port on it?????

@acservicetechchannel 7 лет назад

So when you purchase a manometer, the brass barbed fitting comes with it and will actually fit directly to the tubing. You can buy the very same size brass barbed fitting and then you can then drill a hole in a spare cap you have and then tap the thread size and screw your barbed fitting in and then you have it. I recommend having one of these setups for 1/2", 3/4", and 1". The loose barb fitting that came with the manometer will be what is screwed into the electrical gas valve. I will be focusing on gas and heat now instead of ac so I will be putting out a lot of videos on these processes soon. The black reducer you saw came out of my old yellow jacket gauge

@DayClanTribe 6 лет назад

I'm thinking one could take a simple water or gas pressure test fitting, throw a 3/4" to 1/2" reducer in the bottom, pull the schrader from the side port and push your surgical hose over it. Might be quicker than drilling a hole through a cap and since I have a few testers laying around. Then you have a multi-purpose test tool.

@arkanoiddude 5 лет назад

Why don't you want to use the tap in the gas valve? Not sure I understand the benefit of doing it this way vs just tapping into the inlet port on the gas valve.

@acservicetechchannel 5 лет назад

Sometimes they are a bear to get to the gas valve tap. They can be difficult so it is just easier to take it at the drip tee cap. Not always but sometimes it is easier, thanks!

@tanykolisnyk4219 4 года назад

7.4 it's what psi? Barr?

@ricosuave9848 4 года назад

Inches Of Water Column = 7.4 " WC 1 Psi = 28 '' WC

@jamiepost360 5 лет назад

That gas line is galvanized steel. You need black pipe for gas, it resists corrosion from the added odorants in natural gas. If it's propane... still use black pipe.

@acservicetechchannel 5 лет назад

Galv is absolutely fine to use and it does not distinguish between Galv or Black Iron in the IFGC 2018. In fact, our supply houses won't even stock black iron near us for gas piping. We are near the ocean on the east cost. If you install black iron, then it will rot and leak out of the threads in this location but you can use either one, thanks`

@J.James999 6 лет назад

Isn't that harder then just loosening the incoming gas tap with a hex key

@acservicetechchannel 6 лет назад

You want to have options. Sometimes that set screw is hard to get to because of the exhaust or intake pipe and every once in a while, you may find a stripped tap plug, thanks

@rolytech212 3 года назад

That Sediment Trap is installed incorrectly

@SantaMariaNellEntertainment 4 года назад

Hi new friend here let be friends

@mariosmith8456 Месяц назад

I know it's not your fault but we see incorrect dirt legs like this one all the time. A dirt leg is supposed to be on a vertical because dirt will just blow right past it on the horizontal

@derrick71000 3 года назад

Couldn't hear much

@donaldpainter956 Год назад

You aren't supposed to have galvanized pipe for gas it is supposed to be black iron

@acservicetechchannel Год назад

There is no differentiation in black iron vs galvanized in the IFGC 2021. We live near the ocean and supply houses only supply galv. Black iron rots too quickly but in reference to nationally, there is no problem using galv unless your local inspector shows you some reference to a code that the city has adopted outside of IFGC, thanks!

@donaldpainter956 Год назад

@@acservicetechchannel according to the north Carolina code book there is they will turn the job down for galvanized pipe on gas pipe

@donaldpainter956 Год назад

@@acservicetechchannel and besides that galvanized is made from galvanized black iron is iron so there is a difference

@paulmikul2280 4 года назад

Hi, I don't mean to be critical. I am not able to make videos at this time. Could you please refine your video so someone doesn't get injured? You were showing 7.4 on the manometer, but you didn't specify if it was for natural or propane. Then when you added your text at 5:03 on screen, you said 3.4-3.8", and 10" for propane. I don't understand. And it would be better if you described this pressure if the burner is drawing or not. I'm not sure what reading should be used for natural now and whether the unit you are checking at is drawing fuel. Granted you did say to have other appliances running. Good job, but I think it would be wise since you are reporting on gas, your site should be more thorough to avoid a law suit. Just my love and opinion. Aloha, Paul

@joedugas9462 7 лет назад

sure looks like galvanized pipe. Illegal.

@acservicetechchannel 7 лет назад

Hey Joe, thanks for your comment. Here we use the IFGC 2015 and it does not state that you cannot used galvanized. Code from the IFGC is also interpreted by the code official. Actually we could fail here if we used anything other than galvanized. I am located by the shore and no code official wants to see any black iron outside of the building. It is comon practice here to install all galvanized through the whole building and suppliers mainly only sell galvanized because they don't want to stock both. Our Main Gas Utility Provider also only installs galvanized on and near the natural gas meter. It is likely that a code official in your location is interpreting the code in their own way or you have another code book you are working out of. Thanks