Cooling the $1,000,000 server

[FriendlyAussieHVACr]

Gday friendly local HVAC&r tech/installer here, I’ve taken an extra interest in recent “I’ve shouldn’t have kept the $1,000,000 computer” video. And in my experience with cooling big and small UPS rooms I feel like a refrigerated CRAC unit would better suit for the application and would better handle the heat loads compared to a water cooled CRAC, don’t get me wrong water cooled units are grate in massive UPS rooms where you have a water tower to control the load.
 

But in a some what smaller application, I feel like it would be more practical and cheaper to get a correctly sized refrigerated CRAC unit for the.

 

water is going to take way more time to displace the heat load that why they were only see a 2*cTd across the air off the evap a good CRAC unit  would run at about 16-20*cTd So the run time for the water pump will be flat stick trying to get down to temp compared to the refrigerated system will get down to temp a lot faster and the run time on the compressor will be shorter.

 

In my humble conclusion for a big commercial 100% I would go water cooled, way easier and wayyyy cheaper but for a couple of rooms or one main UPS room refrigerated would be cheaper in the long run.

 

but I would love to hear everybody’s opinion and thoughts on the topic :)…

[Needfuldoer]

Chiller plants cost money, janky semi-effective solutions are free (and make for engaging content).

 

You're absolutely correct about what they should be running, but since when does LMG do infrastructure "properly" the first try? 

 

We have a Trane chiller plant at work, with Liebert air handlers feeding the datacenter and switch closets. Aside from somebody not catching that they mixed copper and aluminum heat exchangers in the same loop, they work great.

[TPCEA]

1 hour ago, Needfuldoer said:

Aside from somebody not catching that they mixed copper and aluminum heat exchangers in the same loop, they work great.

 

1 hour ago, FriendlyAussieHVACr said:

Gday friendly local HVAC&r tech/installer here, I’ve taken an extra interest in recent “I’ve shouldn’t have kept the $1,000,000 computer” video. And in my experience with cooling big and small UPS rooms I feel like a refrigerated CRAC unit would better suit for the application and would better handle the heat loads compared to a water cooled CRAC, don’t get me wrong water cooled units are grate in massive UPS rooms where you have a water tower to control the load.

@LMGcommunity