HVAC Heat Recovery Systems for Buildings That Replace Boilers and Reduce Costs with David Kim Part 2

So the hydronic solution or hydro kit, what exactly is that when we're talking about, is this something that interconnects to the multi VI? Is this something separate or is it installed as well? Like talk about it for a minute because I'm learning too.

Right.

Hydro-Kit is basically like a type of indoor unit.

So typically your rough indoor unit, you're doing, you know, from the outside air, you're doing air to refrigerant, right? And then from indoor, we're doing refrigerant to air, right? It's the air to air system, right? To provide cooling or heating.

Now, Hydro-Kit is air to water system, right? So it does heat exchange between the refrigerant to water.

So we're using a VRF technology to either cool the water or heat the water.

So it is the best solutions to remove boilers, basically, and then remove the greenhouse gas emission inside your building.

There's two different types of the hydro kits.

There's a mid-temperature hydro kit and high-temperature hydro kit.

The key difference between the two is mid-temperature hydro kit is just basically a plated exchanger inside the indoor unit.

So it's just a refrigerant line comes in, and then we're doing a heat exchange with the water.

High-temperature hydro kit, the difference is it has a separate refrigerant system in it to create cascade system.

So refrigerant will do the heat exchange with the refrigerant, and it's going to boost up the pressure, and then, again, does the heat exchange between the water.

And therefore, by using a high-temperature hydro kit, we can create the water temperature up to 176 Fahrenheit.

right? Perfect for domestic hot water.

And then mid-temperature hydro kit will be perfect for domestic hot water preheat and also for in-floor heating.

What about like, I'm thinking of like mechanical buildings that are existing that have old, old equipment where you've got like a boiler in a basement and they've got radiators or fan coils around the building.

Can you use the hydro kit to replace the boiler in that situation where we're sending the water now to the fan coils via pumps?

Yeah, definitely.

Most of the case, depending on the required spec of the existing building and depending on what kind of water temperature that they require at a certain given time, yeah, we can

definitely use the hydro kit to replace it.

Now, we have something called water communication kit because hydro kit, the biggest downside of hydro kit is limited capacity.

So we often have a hydro kit in size of three and a half ton.

and eight ton for the mid-temperature harder kit, and three and a half ton and six ton for high-temperature harder kit.

We don't have anything under three and a half ton or between three and a half and eight tons or above eight tons, right? So to overcome that weakness, we have developed this water communication kit that allows our VRF to be connected to a third-party plate exchanger.