I built an addition and installed a Mitisbishi Mini split system, 9,000
BTU, 3/4 Ton.
I'm familar with wiring concepts, but I have to admit I'm a bit
perplexed at the wiring instructions included with the unit.
I have a 14/2 wire connecting to the Outdoor compresser and connecting
the outdoor to the indoor is something I'm confused about.
The instructions show basically four lines, S1, S2, S3 and a ground
wire going between the two units. I'm not clear if I should be using 2
separate wires here and I can't understand how a 14/2 wire can hook up
to 4 different connectors.
The instructions go on to say that I need to use AWG22 wire for teh
12-24V DC. What's even more confusing is that it's saying S1 and S2
should be 208/230V AC 1 phase, 60V, but then it goes on to say that S2
(again) and S3 should be DC12-24V....
How can S2 be both? What exact sort of wire(s) should I be using
between the two units? Any help would be huge! Thanks