Hey Brian, thanks for all the wisdom, I´m from Brazil, and here we also try to use Fujitsu, Daikin, LG and Carrier, and if possible, with inverter units. But here we tend to use one do one units, max two to one splits, our electricity codes here a way more relaxed here, but we are stuck with only two phases, one neutral and we have a lack of grounding in old buildings. Can you tel more about the "tech cables" please? i tried to google this and had no useful returns...
Another question, why use metal boxes instead of plastic ones? Here we prefer to use plastic ones now because of corrosion.
And what about drainage? Don´t you have condensation there in Vancouver? Here i´m @ Sao Paulo, It´s just 10km down of the tropic line so we have a lot of humidity and rain, and hot temperatures, so our units condensate a lot of water, we use 3/4" piping for drainage and we have molding problems in the line.
Can you tell us more about how are things in a place that snow?
Thanks in advance, and thanks for all the tips.