HVAC Tools: iManifold Zigbee Wireless Pressure and Repeater Probes

well good morning YouTube I had some time this morning so I figured I would screw around on my system and make some adjustments here I had done a spin around on my condenser and I’ll show you that here the service access used to be in the back corner right under that dryer vent hood and it was a pretty difficult to get to there was only about eight inches of line set between the condenser and that connection so I spun it around and put my service access on the outside got a larger pad extended the line set but as you can see here my electrical isn’t very pretty so I’ve got a whip ready to go in and I was gonna change that out so that my unit at my house is more worth looking at since that’s pretty ugly so I’m gonna pull out the old wire and replace that with a longer whip that’ll be able to be more attractive and I will take you along once we get that done I’m going to play with the wireless pressure ZigBee and show you some of that as well so come along for the ride so there you have it got it coming down wrapping around and going up into the power box and I’ve got crimp connectors here to hold the stranded wire with the loop on the end they had romex in there before and this is what I used to go back crimp it down real good and even got one down there on the ground so she’s wired up and we’re gonna talk about wireless pressure probes alright so we are in the manifold up we are already connected as you can see we’ve got liquid line outdoor and Delta or discharge going to go into wireless probes you can see me in the camera there we’re going to add and we’re gonna start with the temperature probe that we want to use for supply we are looking for probes we’re gonna press and release the wireless button until we get a notification telling us that we are connected we have success we do want to add another probe we’re gonna move on to the returned probe we have success we do want to add another probe gonna move on to the high pressure probe we have success we do want to add another probe I’m gonna move on to the suction probe we have success we do want to add another one I’m gonna move on to the repeater we have success and we are done so now you see we have probe one as temperature and humidity probe two is temperature and humidity probe three as high pressure probe for as low pressure and pro five as a repeater and temperature there you go we’ve got high pressure tied into the high pressure connector and we’ve got t1 tied to a strap clamp on the liquid line and we’ve got low pressure tied to the suction line and t1 tied to the suction line probe one is temperature and humidity probe two is supply air temperature and humidity we are going to map this one since it’s not mapped return air it’s

that easy guys to map them probe three we’ve got high pressure and liquid line temperature probe four we’ve got low pressure and suction line temperature as well as superheat and the repeater probe displays no information because nothing is connected to t1 and t2 now if we go back to the manifold I wanted to point this out because it threw me for a little for a second if we go over to probe five there’s probe one probe to probe three probe four and this is what probe five looks like if I were to connect a strap lead to this probe it would then show that information going to go ahead and tie into T 1 and you see T 1 I’m gonna switch it out for T 2 T 1 drops away T 2 and that clicking noise that you might have been able to hear was the probe being inserted and about one one and a half seconds later the data pops up so they respond very quickly there you go so just for fun we’re gonna leave this probe in the repeater so that we can confirm cone activity and we’re gonna go ahead and put the temperature probes in the ducting in my attic the return air probe is into the return plenum on this side of the unit and the supply air probe is over here in this distribution box and then we’re gonna take the repeater probe and just for fun show it over by one of the supply registers on the second floor there you have it the magnets on the repeater probe allow me to stick it to the register and then we’ve got that ambient air sensor plugged into the t1 port and it ought to get some air coming off of the register trying to get it to where it makes sense in the airstream let’s do it this way since these louvers deflect air that direction will get it so that probe hangs out in front of that set of lures on the register so we’ve got our repeater probe showing ambient around that register LP is low pressure HP is high pressure supply air dry bulb and return air dry ball system is not running if we come up here and touch the little Wi-Fi icon and switch from eye manifold to wireless 4 we see our suction pressure saturation and superheat come over here to the high pressure Wi-Fi icon switch to wireless 3 we see our high side pressure saturation and no subcooling as the system is not running before we turn the system on we’re going to go over here to trending gonna setup trends for fun we’re gonna do the pressure low pressure high and set this up for every 2 seconds and we’re gonna show 90 points of data on the screen we’re gonna submit that so there we are showing our trends we’re

gonna go ahead and go over to the profile and I have saved my system over here we’ve got a piston orifice and so no target subcooling and actually I don’t have an outdoor ambient let me see if I can fix that so the outdoor ambient is not going to be totally accurate because it is off of the eye manifold sitting on my dining room table right now but at least it’ll give us that information based off of ambient in my first floor dining room table so we’ve got profiling and we’re gonna go back to trending and then we’re going to go over to the nest website going to take my living room thermostat and drop that down system started up already since I am zoned I’m going to set the upstairs down as well and jump over to the trending again so there we got both zones calling jump back over to trending and you can see how the trending tracks with 90 points displayed it’s tracking over a very decent time now if I wanted to I could go into options and re trend rather than every two seconds every four seconds and that will extend the 90 points to show even more time it just won’t show as regularly it’ll show every four seconds instead of every you so there we are with that we’re going to go back to the manifold display and watch how the system changes as it runs just for fun it looks like I’ve got my supply and return backwards so we’re going to go back over to the wireless probes we’re going to take the probe one which is set up as return at this point but obviously wrong and we are going to remap as returned air and then remap this as supplier so now we should see that information properly and there we go so we can see that we’ve got pressure running pressure gonna go back to trends to show that information and you can see we came up wave down a little bit and we’re coming back up into the blue line for ambient and outdoor temperature which is actually the temperature in my living room we’re gonna go back over to wireless probes and look at that information since we did have it set up in the air stream off of that register we are getting a temperature off of that and just for fun you can see that I’m apparently losing about 4 degrees of delta T from the distribution box for the second floor over to the register air output itself so not necessarily something that is a specific tool but it shows you how you could prove whether you’re losing temperature across the ducting or whatever you could prove that the insulation value is not exactly that great now it may adjust over time so it looks like the delta t between the

distribution box and the register is getting a little bit closer just so that we cover as much information as possible we’re gonna go ahead and go over to and performance you can see that my pressures are within the allowable range superheat is probably off and let’s actually go look at that for a second here we’re going to look at target superheat my pressure is pretty close but my superheat is obviously off by about nine degrees and there you have it currently under the coil performance that I’m getting I’ve got a standard CFM of 424 per ton and twelve hundred and seventy one overall my target temperature split is short by one degree my calculated tonnage is three point three I’ve got thirty-nine thousand BTUs total with twenty thousand allocated to sensible and almost 19,000 allocated to layton with a sensible heat ratio of 0.5 – and I’ve got a bypass factor on my coil of 0.6 one dewpoint entering is sixty one point four and dewpoint exiting is fifty two point nine we have evened out on the trending and you see a little bit of fluctuation on the high pressure side but well within the pressure range suction pressure is running a little bit low but if I had my superheat right on the money that would be expected to fall within the middle of that pressure range twenty-eight rather than twenty not too bad though for a 13 year old york trashcan go back to system performance see how that has changed not a whole lot my target temperature split has gone up a little bit to almost 16 still lagging behind by about one degree roughly but the CFM has maintained its accuracy to the truth 1200 nominal pretty decent I’d say like I said 13 years old I did add some refrigerant a while ago on one of the other videos and I don’t see the sense in leak searching my own system when I’m more than likely going to replace it fairly soon rather than add refrigerant every year or bother with the leak search obviously for me an evaporator coil wouldn’t be terribly expensive but it’s just not worth it I mean we all should understand that efficiency improvements since thirteen years ago are well worth the investment even if we’re not making it we understand it and would like to we’re just not all in a position to actually afford it so anyway so we’ve got the system running and we’re going to go ahead and pull the hoses off while it’s got higher high pressure on the high side just so you can see what kind of release we’ve got not too bad I don’t think no worse than the six inch long ball valve hose connectors low sights should be even better than that basically nothing on that side so I’d say we’re good to go release the Krakens those are the wireless pressure probes

and my systems not doing too bad thanks for watching guys like subscribe comment and share and we’ll see you on the next video