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Hi, what are a few good alternatives to Aaon V3 and CB series heat pumps?

This is somewhat outside of what I do everyday...and our customer had a bad experience with Aaon and wants to go with...

If you get a newer (within past 1-2 years) Stulz unit with the newer E2 controller, it has built-in communications ability--Bacnet, modbus, Lon, etc. etc.

It was hard in the past since you needed...

Anybody hear about an O Ring recall from Liebert on their XD systems?
I head about this from a guy at a property management company that our company works for on data centers. I posted this in...

I know of a telecomm site in Jew Jersey that has 10 Liebert units. They're about 15 years old, can't remember the model. It's only like 15 minutes from Manhattan... not sure if this is what you...

I found a discussion at another forum about using custom chillers for a data center and wanted to know what everyone here at HVAC-TALK thinks...
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You could look at the newer design with VFDs on the motor or a plenum fan (direct drive, no belts). Don't know if it's an option for you right now, but it's out there.

what's the difference in them and the big names like Trane, McQuay and others?

Came across this the other day, it was a new one for me. Supposedly it's more of a custom type chiller... but I have never heard of the brand before... is it legit? Good quality?

TIPS on the job?? Never had much luck there, maybe I'm not as good a tech as I thought.

I do have one story though that goes to show just how CHEAP owners are:

We have had this particular...

Wouldn't UV pretty much do the trick? You don't even have to put them IN the AHUs. Put them in the ductwork. You could retrofit an entire K-12 school over the weekend. Just put a big UV unit in...

Add a rack for carbon filters!!!

If you're worried about the forecast being wrong, perhaps assign a weight value to the forecast... So instead of 100% relying on it, it only counts 50%, and the rest is made up from trend data from...

Man, water can find its way into anything, anywhere, big or small! Weatherstripping is a good idea! Don't forget to step back a moment and check the obvious.

I've never had too much trouble with McQuays, at least not any more trouble than other brands. I think you can always get a bad batch of units from the factory...any factory.

So, overall, is GEO bad for the environment because it actually drills into the ground and could possibly contaminate the ground and/or ground water?

Exactly! Comfort comes first for creatures of habit like Humans!

I actualy met vladamir last year on a job in Cali. He did come out and trained us (me and two techs) on the site which was cool. We got our certificates at the same time (I had not worked on...