Opinions on Excel A/C system w/dampers, 1 unit cools 2 rooms

Anyone have any experience with Excel air. Opinions seems to be mixed. Plenty or great reviews from growers but seems that most HVAC guys like to make comments that their systems aren't efficient and are overpriced.

Anyways, these guys are local to me and price is about 20% cheaper than retail for me.

I am looking at buying their 5 ton unit with their motorized damper package. The dampers allow a single unit to cool 2 flowering rooms on a flip/flop.

Anyone opinions or insight on this damper package is much appreciated. Thanks!
This is their damper package

How are you going to cool your rooms while the lights are out? I wanted to find something like this too, but the price seems a bit high. I feel like two 5 ton units could be bought for same price.

Two 5 ton's installed is gonna cost way more than the setup above. The excel system comes with precharged line sets too.

Why would I need to cool my rooms when the lights are out?

Well I guess it depends on your room and climate but my room will easily hit 85 + degrees with the lights out on a hot day. I am insulated pretty well.

Maybe your in a basement that will stay cool I'm not sure but if the room is sealed a dehumidifier big enough to work in a room that needs 5 Tons of ac will put off some heat.

Haha yeah, I've been growing in a basement for so long I don't realize others live in areas with daytime summer temps over 80+

So if you don't mind me asking, roughly how much would the kit be? I could def use this to do the majority of my cooling in the flower rooms and then use a couple small mini splits for lights off. I just installed a mini split with pre charged lines and it was fairly easy.

Not including install the kit is like 11k canadian but that price also includes a UV air purifier and the ductwork you see in photo below. Rooms below are each 15'x30'. Company is also working on another attachment to this unit that can dehumidify 400 pints a day and will cost about 1500-2k.

Your dehues will heat the room up at night. If you’re looking for a nice option, I was also going to get that set up for a flip set up but ultimately went with a water chiller system versus air. All I can say is it work’s outstandingly well. If your wallet can handle it that would be the way to go. Easy to build in redundancy as chillers stack, also easy to add more capacity as needed without having to start from scratch. However, a bit pricey. Good luck however you work it out

I installed one of their used 5 ton XL units for customer recently, but they didn't use their damper box because they wanted to control more than just switching zones on a timed event. They wanted to be able to open and close the closed zone when a temperature condition was triggered in the closed zone. So I built one for them, I used (2) Dayton mechanical volume dampers for each zone, which are powered by a single Belimo ZG-LF112 actuator that is powered by a single relay Time / Temp controller that has built in multi channel auxiliary event support, but in this case, the relay is controlled by the timer controller when the on time event is active, but when the time on event is inactive the relay is then handed over to the temperature controller! The whole thing cost me a little less than $200.00 to make. And they have multi channel controllers so the handler possibilities, (control timed events, temperature events, humidifier events, dehumidifier events, etc, etc), are pretty much endless. But as Pmbreno was saying, Geo Thermal pumps, (an in-ground swamp cooler), are were its at today, they are cheap to make, super easy to maintain, and pretty much all you pay for is running the circulation system, (fans, pumps), which in the last system I built uses a maximum of 734 watts at the wall to cool a 44 x 44 space that has 100 1K(s) 4 x 4 tables in it! That system uses (2) in-ground 100 gallon bottom fed drums, hooked to (2) damper exchange boxes, that blow the cooled air through 4 X 10 inches insulated ducts per each exchange into that grow area.