Why do some buildings have multiple, different types of A/C units?

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I just saw 6 individual units lined up outside an apartment building but only 2 were the same kind.

In: 1

5 Answers

Anonymous 0 Comments

During the original construction all six were probably the same, but four have failed over the years and been replaced by different tenants.

For non-residential buildings, it’s common to have different sized HVAC equipment for different sized interior spaces. The front offices and the cavernous loading dock have different needs.

Anonymous 0 Comments

Maybe Installed in different times but the place is the same due to water disposal and power source?

Anonymous 0 Comments

All that matters is output and efficiency. So when one dies the replacement doesn’t need to be the same, just have a similar output with hopefully better efficiency.

Also, not all apartments in a building have the same layout. Some are bigger and therefore need units with larger outputs.

Anonymous 0 Comments

Individual units may have/be responsible for their own AC compressor and replace at various times.

Anonymous 0 Comments

All good, reasonable replies. Thanks all!