Hi all, chiller maintenance question.

I have budgeted for 5-year maintenance for a chiller at 1 of my props. 1 HVAC vendor provided me w/a “tear-down” quote – items like O-rings replacements, etc. that I have seen for other 5-year maintenance. Another vendor said that the type of chiller does not require tear-down.

It is an 80 ton Trane unit w/screw compressors – the vendor that said tear down is not applicable said that because it is a “screw” unit, rather than centrifugal, just checking oil, brushing tubes is enough.

Any comments welcome. thanks