Re: Basement heat/ac units
I'd think the refrigerant tubing on a mini-split would be at the most risk in a bus install. The multi zone units are (petty much) all 240 Volts. The expesnsive ones, with Japanese names on 'em, are inverter power controlled. They take the line voltage and make variable DC voltage to run the compressor. The advantage to that for us is that the compressor starts on lower amps, so our 30 amp power supply, or wimpy generator can start them easier than regular air conditioners. The disadvantage is that with all the fancy electronics in them you're at risk of an expensive repair bill from voltage spikes, etc., so I've read.