QUOTE(moon1978 @ Dec 3 2017, 05:09 PM)
Wow, that's quite long for landed. Normally those length expected only for condo due to common AC ledge zone to the other rooms.
QUOTE(moon1978 @ Dec 3 2017, 06:00 PM)
Concealed. All inverter airconds.
If the AC is positioned above the window, it would not need to run so long esp for those in bedrooms with AC ledge. Any problems need not resort to hacking extensively. Unless of course compressors is co-located beside each other for easy reach and maintenance like a semi D. If so, maximum vertical height of the compressor can be an issue as highlighted
here.
If really that long a piping, I recommend you get Inaba Denko Paircoil piping at minimum 0.8mm thickness spec-ed according to your AC pipe size. They are sold per box of 20m length. Perhaps get it yourself and ask them to requote just for labour in laying the pipes.
You may want to recalculate for each room the AC HP sizing to see if they're up to spec based on the factors affecting that room. Then from there quantify how many 1HP, 1.5HP etc required.
This post has been edited by halcyon27: Dec 3 2017, 11:27 PM