What is this air conditioning unit?

[amir47]

Hi guys, I found this unit which connect each end with my underground central heating duct. Anyone know what this unit for? 

I also found 3 outlets on the unit, are they for gas input? or water output?

Many thanks 

[MitchellMc]

Hi @amir47,

It appears to have something to do with your central air-conditioning. Do you have a separate unit elsewhere? If not, this could be the compressor unit and what produces the cold air. Are there any model numbers you could Google on the unit? That might help identify what it is.

Please let me know if you have any questions.

Mitchell