I’m not a electrician but if it takes 30 amp power to one condenser wouldn’t two be drawing 60 amps thereby tripping the 50 amp main circuit breaker on the pedestal?What you need to remember is whether it is one condenser or two, the power requirements will be the same. Virtually all but the cheapest units are inverter driven, one unit driving two indoor units will be working just as hard as two separate systems. At 20' from their preferred sitting location, I would not expect any issues, certainly with the quality brands. When you get down to your property, have a wander and listen to other people's units.
Soooooooo much to think about. Wish I was in FL right now although it going to get hot today like every day but not hot like in ArizonaDon't think of a split system like a conventional RV air conditioning system. I don't think RV units have inverter driven compressors. When the outdoor unit starts, large capacitors charge and draw quite a heavy current for an extremely short time. The compressor starts at low speed and with virtually no power surge. Most small (3-4Kw output) systems in the UK will run on about 5 to 6 amps, probably double with US voltage. If your installation doesn't have room for two outdoor units, multi-split is the way to go, or you could stack the condensers.
I reckon the problem with any critter screen is it would just allow the sludge to form quicker.Do they put some type of plug with a bunch of real tiny holes in the end of the condensate hose to keep critters from getting up in there? I would either do that or run the hose so that there is a built in trap like some people do with their stinky slinky hose
Yes I remember what you said about the pipes. If he does cut them to length he could leave a little extra and that would be hidden behind the skirting.The condenser needs clearance behind it to allow air flow over the coil, 4" is fine. What excess pipe, an engineer should cut and flare the pipes to length. If they are using pre-insulated and pre-made pipes, find another installer.