Hey I'm Brian with the HVAC school podcast. This quick video is a companion to the water source heat pump series that we did on the HVAC school podcast. So if you listen to the HVAC school podcast with Eric Mele, these were the summer of 2018. If you listen to this later, you can go back and find those.

This is a companion to that, where Eric gives us sort of a quick walkthrough of water source units, some different configurations and components. So you get a sense of what we're talking about on the podcast in case you've never seen them before enjoy I'm gon na. Try to do a quick video on giving a tour of a cooling power system. This one supplies water source units inside water source packaging.

It's got a cooling tower to sell cooling tower, basically two towers in one joining together, helping our water up to the top I'll pull an errand through the side vents discharging at the top. The turn water is coming out these pipes and going over to those pumps back there we'll get back to those later. Since our cooling tower drain this the bottom ones, the drain it has, the bow over the water level gets too high just rained on in this case, onto the roof. It should be going in that drain, but that's another story make up water.

The other side of that in the tower about float assembly on it, much like just a toilet, a big version of that contains a water level in the tower. They also have a bypass bill system faster if they were to drain it dump water right into the suction side, where a water comes up from downstairs our pressure, I'm not a plumber at my end of it going to the power feed. You wanted an italic. This makeup water is going to our to the moment.

Here's just a convenience water outlet. You can put a garden hose on there if you wanted to, while I'm over here there's a motors for our cooling tower fans. Belt-Driven big fan trout's there about you down the deal. Just look like a big condenser fan blade.

Essentially that's what it is. Usually you see strainers on the pumps like these. Have this is our closed-loop, our tower loop, um, there's a strainer here for the tower loop. There's probably also a strainer in the tower, or it comes out.

That's nice way to come. You shut this valve adjust this stem drop, your pump, amperage and lower your water flow. Since our heat exchanger, we walk around for a better look. These are the closed-loop parts.

This is some water chemical treatment piping that is feeding chemicals into our system. So, on the suction side, here, there's gon na be a strainer and each one of those behind this flange. Here this piping is going to a differential pressure sensor right there, which is giving a signal to a drive to the side, would speed to operate this bunker. There are shutoff valves at the end or units.

This is a chemical pot feeder, so you can feed the chemicals in into the pressure difference there. You can drain it at the bottom of that bow. Once you got a nice lead for the system, I'm gon na try to talk real loud again. I got a slightly different arrangement to show you today.

This building is condenser water and the loop is completely open. So up there, you got a tower bypass valve. Let me get closer to it. This piping, it's everywhere.

I didn't really care about that. So there's our discharge water coming out. This is our suction side. Coming back to the tower Arabia, get us the return side there.

This is our tower bypass, bow, which is gon na. Let the water go right back to the pumps through the tower sighs. Just like we saw in the previous video get your makeup water stuff there same thing. Oh this way back to the so that tower bypass valve is only gon na.

Do anything when we want to go into heating mode. So now we're gon na walk over to the Pump Room here. It's gon na get even louder in here. I'm gon na try to talk ujin ladder.

I guess we got no light switch one. The temple we see on this particular drive this moving bypass worst thing they could do in my opinion, is put a bypass on the drive they always run. This is a circulating pump under the boiler. 80 percenter.

We got our boiler kind. Electronic makes me involved there. There was at one time, but in the temperature here, low water cut off well switch their pressure and temperature. There thermostat back in there water treatment stuff here strangers in there.

It's on the discharge side, closely-spaced coming off opposite sides, which is preferred cards, water, controller and ear real, simple, Honeywell, patroller running all this picture right. There modulating the fans in heating mode when the water temperature drops to a certain level. I've sped up the power and bypass fans will shut off by that point. Come on.

We come out here back to our piping got. You know our risers going down through the roof, their copper. They got a circuit setter and shutoff valves and air bleeds that all the risers continuing on with the water source equipment itself. Here's an example of one got a reversing valve compressors heat exchanger in the unit.

This is actually a water source, chiller kind of weird, but I got all kinds of stuffs: there's our chilled water piping. This is our closed. Loop piping got another wide. Strainer got our gauges.

Isn't that one just over? Maybe now it's just over 70 to 10 psi difference. These are those pits valve fittings. It's like the tiny one. There I've got some thermometers.

We got ninety some in and probably about the same out, it's really hard to catch on video. I think that outlets actually broken chilled water piping. All the same fittings shows water search pump. It looks like we're getting on make up water for our chilled water right here from our closed loop, which is kind of interesting.

We've got a drain: no expansion tank there. So this is kind of neat - probably another strainer there on the inlet side of this pump circuit Center on the outlet drain most likely behind there, but we got a normal water source air conditioner here, not quite as fancy live, strainer circuit setting valve flexible hoses. You see we got ductwork leaving this one instead of chilled water piping, but kind of cooled it. We can look at two different examples.

They'll leave me be split systems in certain instances, although I don't know that there's any here for me to show you, but I just changed the contactor at this chiller waiting for come back on there. We go that beautiful thing, so I just wanted to do a quick example that you are good enough or lucky enough. I should say to have a Pete's fitting. This is called a pizza doctor.

I got up Amazon for like 20 bucks as a little port. I got a pressure gauge now and this is uh, not a good pressure gauge, that's kind of a bad example and also stick immersion type thermometer, that's the same diameter in there there's two sizes. I think this works on the bigger ones too. I've put it in a bunch of them just to play around with it, not super critical to have, but it is nice to have probably with the more accurate gauge you put your chemicals in and feed Z through back into the system.

Since your piping of your heat, exchanger, the water that goes in that tower, never touches the water that goes in the closed-loop since our makeup water assembly for closed-loop. It's going into the suction side right there have a pressure. Reducing valve have an overpressure relief, have a bypass, a bunch of water. This is the air separator tank.

There's an air automatic air bleed on top of it, let's go in into our suction side, also to protect the system. You have this in flat expansion time. This one's actually configured to be placed in the top, it's really hard to see without climbing up on stuff, but inside that little thing here, it's about stem we'll check the pressure of the air bladder. You got ta air breed off the top of it as well.

At all the high points, it's a good idea to have those. I know this is what, but that's how it is still work pronounced. That's basic overview there standing around got your valves for shutting stuff off now. Hopefully, it's your first time working on something like this.

You at least know the base of components of what you're looking at not everything's gon na have a heat exchanger. It might just have one pump that goes to the tower and all of your working fluid is open to the tower. But that's not what we have here, so I'm not going to get into that anyway. I hope this was useful thanks for watching.