Hey thanks for watching this video. This video is a quick look about how to use a manometer in order to check a system when you're testing and commissioning it to make sure that your blower speed is going up or down it's a very practical way. Kind of a comparative way to use a manometer and along the way, I'm also gon na, show you the new field piece job link, manometer kit, the JL 3km. These are single port manometers, which make them really easy to use.

You can put them exactly where you're testing, but you can still check them against each other. Just like you would with the dual manometer. It comes with all sorts of great stuff. In the kit.

It's got a nice easy bag. It's very much like their meter bag. It's got your ports, your adapters, your static pressure, probes, hoses everything all in one for testing gas pressure and static pressure. It works along with the job links app.

It has really great range about 350 feet worth of range, so you're gon na be able to use these with your job at links app or even with the measure. Quick app, so you've got a lot of options of how to use these, but I'm gon na talk to you very specifically about how to use them when you're testing a piece of equipment to make sure your blower is going up or down, which is important. If you're testing heat cooling modes, if you're changing stages and to make sure your blower is ramping up or down or if you're, going in or out or of dehumidification mode, I'm gon na show you this on a carrier infiniti system, but some other really great applications. Would be things like a nest thermostat or an eco bee thermostat that you're setting up for the humidification or for staging? And you want to make sure that that blower is staging along with your compression you so we're running in fifth stage: 1241 CFM 0.5 for static pressure, total the supply would be used with blue and then p2 would be used in the return.

So that would be red, green, slow, blank means normal operation, red, slow, blink means batteries need to be replaced in to zero out you just press the button and it will flash blue and then zero. This is a typical orientation for total external static pressure measurement, and this is showing how to use these adaptors in order to measure with the larger boss on certain gas valves. This is the normal threaded configuration so on a fan coil in order to get total external static. Who would measure before the evaporator coil, because the coil is in the box of the air handler and then we would measure on the supply and we'd see the differential.

But in order to just see changes in air flow, we don't need to do that. We just need to look at one point measuring the same point and get ourselves a baseline and then see if that number goes up or down. If the number goes up. We know that our air flow is increased.

If the number goes down, then we know that our air flow is decreased, so a situation like this would be a case where you have already done all of your system. Tests you've already measured your total external static, but now you want to just do a quick check of your pressures drop across your air filter and then you're just gon na leave it in and do your up and down staging tests and make sure that your air Flow does stage up and down with this application, it's going to be easy, we're just going to put one above the filter and one below filter to take a look here. This would normally be in the supply, so this would be the higher pressure side. This would normally be in the return, so this would be the lower pressure side, but we're really just looking for a differential orientation isn't as important, and these out in this type of situation is early just going to be looking for differential more than we are looking For a super, accurate measurement, so in this particular case again, p1p2 doesn't really matter as much because we're just gon na look at the differential.

But and again this isn't perfectly sealed up. But let's take a look at what the job lynx app shows. So, as you can see, we've got the lower negative pressure on the other side of the filter and the higher negative pressure closer to the blower. So again the closer you get to the blower, the higher your pressures are going to be, and in this particular case we can see that the difference between these two, the Delta P, the difference in pressure, gives it to you right here is 0.17.

So that is our filter pressure job, but let's just pick one of these to focus on. So let's just look at our negative on top of our filter, so that's negative 0.29 at full speed. So now, let's go ahead and ramp down to the next stage, lower and see what happens to this measurement. It's our stage down to four and see our total static is dropped so, as the blower rpm goes up, so will the total external static pressure that's seen across the blower? We can check at any point and we can see that change in static pressure.

Once we've developed a baseline to show whether our below row priam is going up or down alright, so this is in stage 4. You can see we had a significant decrease in both our static, that are that we're seeing above the filter before the filter and our Delta P. Our pressure drop across the filter have all decreased, even with that pretty slight decrease in air flow from stage 5 to stage 4, which just shows us. We can confirm that we're staging equipment up or down now on something like an infinity communicating system that control.

Does this for you, but if you were doing something with a thermostat that had some smart controls in it, but was still 24 volts, we're staging upstaging down going into heat mode d, humidifying that sort of thing you could very easily use the field piece JobLink manometer! In order to look at very fine changes, you use one or both, but it's also valuable to see what our pressure drop is across our air filter, just to make sure that it's not too restrictive. You can see these are only slightly slightly off and so we're gon na go ahead and zero these out, really simply because we have a measurement on them. We can zero. The mountain and all we do is just hit the button it will flash blue thanks for watching.

As you can see, the field piece job link. Manometer is a really great tool for you to do lots of practical tests. A good quality manometer has so many important uses in the field, but specifically, you can use these to easily test to make sure that your air flow is ramping up and down the way that it's supposed to hope you enjoyed we'll catch you in the next one.