Installing 2 air-con units from 1 electrical feed?

[BOOKEMDANO]

I have an existing 16,000 (I think) BTU air-conditioner that runs well enough, but would like a second (bigger 20,000 BTU unit) installed a few meters away in the same room. 

1) Is it possible to link the second unit from the existing cable (see picture A) via a simple junction box without overloading the breaker box when ultimately both units begin to run simultaneously?

2) Or should each air-con run on its on dedicated cable directly to the breaker? 

Not very knowledgable about electrics. Appreciate your feedback in advance ????

 

 

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Edited May 3, 2020 by BOOKEMDANO

[Crossy]

A total of 16,000 + 20,000 BTU A/C will be drawing around 3,600W when both compressors are running, about 16A.

 

If your existing cable from the distribution box is 2.5mm² or bigger you could safely add the second unit to the existing feed.  

 

If it's 1.5mm² as I suspect it is, you are going to be on the line and should add a second feed and breaker.

 

How big is the breaker for the existing unit?

 

How big is the room, 36,000 BTU is a lot of cooling!

 

[northsouthdevide]

How many m2 is your room, and how high is your ceiling? 

If you already had a 16000btu unit, adding another 20000btu seems a bit excessive.