That's not how a mini-split works. It's a scam and a way for A/C companies to get people to pay for needless "service".x9200 wrote:The parts that get dirty in a typical aircon are the filters, the in-room air/cooling fluid heat exchanger and maybe the drainage. There is nothing like this in a typical fridge so you are comparing apples to pokemons. Closer than this analogy would be to compare AC to a vacuum cleaner.
A refrigerator and a split aircon are very similar in operation. The "in room heat exchanger", aka the "evaporator coil" also exists in the refrigerator in the freezer compartment, and most modern refrigerators also have a small fan to move air across the evaporator coil. And, there is a drain hose to carry condensation to a drain pan.x9200 wrote:Perhaps you could enlighten me how does it really work and why is it a scam?
Strong Eagle wrote:A refrigerator and a split aircon are very similar in operation. The "in room heat exchanger", aka the "evaporator coil" also exists in the refrigerator in the freezer compartment, and most modern refrigerators also have a small fan to move air across the evaporator coil. And, there is a drain hose to carry condensation to a drain pan.
Similarly, both the refrigerator and the aircon have a condenser coil. In the fridge, it is on the back or on the bottom and usually does not have a fan to drive air across it, relying upon natural circulation instead. The aircon condenser coil will have a large fan driving air through it.
The chief difference is capacity: aircon units have far larger cooling capacity and far more air driven across the coils. Otherwise, they operate identically.
Strong Eagle wrote: As for the scams:
a) It is already "scammish" to require that they be cleaned once a quarter, especially if they are infrequently used. Every six months would be enough for the majority of aircon units in Singapore.
Why does it matter if the a/c is 'properly maintained' when that applies to nothing else in the property? How is the a/c different?x9200 wrote:Beside, put yourself in the shoes of a LL. What would be a be the better way to ensure it is properly maintained?
The rest points from the list has nothing to do with TA.
Oh really? Most A/C are shut off here during the day or when people are out. In the US I live in a cold climate yet the A/C runs 24/7 from April to October as it's not just for colling but humidity control. Would not be surprised if my total system run time is equivalent to that of many systems used "part-time at night" only compared to many warm climates in the Southern US.kookaburrah wrote:I am actually on the side of x9200 on this one, and I can usually be relied to be on the opposite camp.
You cannot compare the US to Singapore. Simply cannot. Since he has no other way of ascertaining this, a LL in Singapore must assume that ALL A/C units in the flat they are renting will be working 24/7, 365 days a year. To assume anything less would be foolish, given that a 4 unit A/C system costs upwards of 5000 dollars (I know, I've just had one installed - and that was just the units and compressors, not the pipes). Based on this usage, I'm afraid any recommendations in a manual would be unreliable.
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