Just confirmed my order to replace all the aircon from current Macquay (12 yrs old) to Mit starmex sys 2 & 3. Took the older model with 2 ticks cos the compressor BTU is 25000. The new model with 5 ticks is only 20000 so if on all 3 unit it wun be cold enough, I was told. Also I am using the existing pipings to save some cost.
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