[Joe Joe]

Gentlemen,
I am reviewing a building with this system for perimeter heating and cooling. They are console type though.

Central plant heated or unheated air is fed to the unit which has chilled water coils. They appear to be the original 1970 units. The air is fed down exterior columns and these are along the whole perimeter.

They appear to be well maintained & working adequately at best; but new tenants have not been replacing them on build-outs. There have been no reports of condensation issues although there may be some not reported. No smell was noticeable.

I am concerned that the units may not properly damper correctly. On the ones that I viewed (I really didn't know that much about it when I was first looking at them), it appeared to be dumping air into the unit that then just came up behind the coils and out - I didn't realize that much air would be sucked in across the coil.

What should I really be thinking about doing with these systems?

I attached a side view of how I think this one works. I also attached a pic of the system.

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screenshot on pc

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