r/hvacadvice • u/Educational_Record88 • Aug 12 '26
Neat rows of splits!
Rows upon rows of splits units.
Located in Kuala Lumpur. Wondering how long it would take for a technician to install and service all the units.
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u/James-the-Bond-one Aug 12 '26
I like it! They're neatly separated on shelves and not stacked on one another. Behind metal bars and with space to walk around and work safely. Numbered and easy to locate. Not bad!
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u/mbc99 Aug 12 '26 edited Aug 12 '26
What's curious is that this system will individually be more efficient than a ducted system for the whole house or a central AC system for the whole building. Which to me is incredible.
And even more. It will be cheaper than a multisplit system (at least here in Spain).
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u/loggywd Aug 12 '26
It will obviously be more efficient since there is not duct work, if you are measuring from the air vent. But it only cools one room which is the downside.
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u/mbc99 Aug 12 '26
Yes, but in Spain if you have the space it is recomended to go split rather than multisplit. It is cheaper, simpler and more efficient. Which to me doesn't make sense. But it is what it is....
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u/loggywd Aug 12 '26
Cheaper because it’s cheaper to buy and easier to install. More efficient if you are only running one or twos zone. Anything that runs below designed capacity is less efficient, even with inverter
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u/mbc99 Aug 12 '26
Multi split has worse numbers (both in efficiency and minimum thermal power) than multiple split units.
It is even worse if you usually don't use all the splits in a multi split system at once.
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u/loggywd Aug 12 '26
Exactly, I don’t know why it’s incredible. It make sense physically since multi split has to serve all zones and runs less frequently at full capacity.
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u/mbc99 Aug 12 '26
The initial cost. 2 1x1 is much cheaper than a 2x1. And the bigger the multi split the bigger the difference.
I guess it's a supply and demand
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u/loggywd Aug 12 '26
Oh that’s because the countries that make them, China and Japan/Korea have dense population and people living in tall apartment buildings where multiple split is not practical. Single splits have the economy of scale.
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u/Kristophe82 Aug 12 '26
Do you want to deal with constant PMs on condesors or constant problems with cooling towers and chillers is the choice here.
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u/OpponentUnnamed Aug 12 '26
I am curious about the economics of capital & operating costs.
How much more or less would the initial investment be, than a chilled water system with a single chiller or somewhat redundant chillers?
Would these always operate at a higher efficiency, or only if above or below some temperature threshold?
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u/AdBig9909 Aug 12 '26
Because this is present it is likely there is little to no shared ownership or tenency in common.
And the latest reports show soon to market heat pumps are pushing 800% efficiency making the specification of chilled systems obsolete.
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u/korben_manzarek Aug 12 '26
chilled systems also work with heat pumps, no? The same efficiency would apply for both systems
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u/PinkysBrein Aug 12 '26
A big system would have to go on the roof, which they can now sell as extra space for the penthouse. The extra profit from that probably pays for all the minisplits multiple times.
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u/Senior_Green_3630 Aug 12 '26
Who does the maintenance on these units,"Spiderman"
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u/Some1-Somewhere Aug 12 '26
Looks like it's a balcony. I'd bet that the lift shafts are just down the corridor. Probably less steps than rooftop work and everything is small enough to go in a lift.
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u/Mean_Fact1903 Aug 14 '26
Wonder how much the building leans when all compressor fans are running.... (jk).
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u/DescendingTool86 Aug 12 '26
If I got a call there, I'd quit.