I have an LG split aircon unit and matching evaporator. It is 9000BTU.
I also have a spare matching evaporator.
Question is can I split the refrigerant between the two? I appreciate
this is far from ideal and may over work the compressor. But in the UK
climate it would not be worked that hard. I could ensure that only one
is used at a time?
Views appreciated - thanks
No, you can not split the refrigerant between the two. Can you run
each individually? Probably. You'd have to make each circuit exactly
the same and be able to isolate/interlock each circuit, electric,
controls, refrigerant lines, etc. I don't recommend it unless you are
or have someone that is good with control circuits and refrigeration
Well now, wait a minute. I am not saying this the answer to this
particular question. But, you can run two evaporators on one
compressor. It would be highly inefficient in a residential
Thanks for *some* of the replies. I've installed several of these units
and know the basics of pipe work, brazing etc. I intended to isolate
the controls electrically but let the refrigerant flow (by 't'
fittings) to each, just that one would not be running.
OK - it will not work it seems but am I to be shot for merely asking
(by some above)? I only wanted pro advice.
The dude is right, it shall have an inverter control if not
possible damage may occur on the other pcb of FCU
(Fan coil Units) with has the inverter. Please do not
attempt to do this. Inverter control are very sensitive.
I think it would be bad idea to simply T it. You might be able to pull
it off using a a couple heat pump reversing valves. A T would not be
balanced and the evaporator with the fan running would have very
different charateristics from the one where the fan was running. It
would probably freeze up and might also result in liquid refrigerant on
the return side. All in all seems like more trouble than it would be
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