(07-12-2025, 03:31 PM)pairodice Wrote: I spent some time removing the AC unit from the basement of the coach and the local AC guy came by and cleaned, rewired the AC, and replaced all the Capacitors. We also went from the Newell 12-volt board to the 24-volt system, many thanks to Jeff LoGiudice for diagrams and answering all my dumb questions! It is still a work in progress and a long way to go but we did get unit 1 working last week with one compressor. I’m trying my hand at wiring unit 2 - will see how that comes out.
I plan to make a video if anyone if interested in 1) removing the unit 2) pulling the unit apart and cleaning 3) rewiring 12 to 24 volt relays/contactors 4) reinstalling; although at the rate I move it may be a while unless there is a ton of interest in the videos…
I will be using Ecobee Thermostats to control the heating and cooling. I’m learning WAY more than I wanted to ever know about A/C units but it is fun as long as I get to work in my cool garage (mini-split) and not the storage building…
The next step is to get compressor 2 working on unit 1…
Adrian, excellent work! Just make sure the Ecobee thermostats are able to handle the 2 stage cooling.
(07-13-2025, 03:10 PM)pairodice Wrote: Is there an induction motor/brushless that I can use for both motors to make the unit more efficient?
Those should be brushless ac induction motors, not sure if you are going to find anything more efficient, not to mention it will be probably just a bit of work matching up the motors specs as it is. I just put my back together, happy that the motors still seem to be running fine.
Yes, you are correct Jeff, I looked it up on Grok :-)
I’m expecting to have at least one of the units working on the bench today with both compressors using the Ecobee thermostat… they are nice and shiny if nothing else…
Another benefit of the alumnicon connectors is that the basic mechanism is metal. Wago connectors are not UV safe. (At least according to google) In other words, they will degrade over time with sunlight. Some traditional wire nuts are UV resistant and some are not. The alumincon connectors use metal screws to secure the wire and will be immune to UV degradation.
If you choose to use Wago connectors, use the authentic brand name version. These have been tested for susceptibility to vibration. Knock-offs likely are cheaper for a reason.
(07-14-2025, 03:05 PM)pairodice Wrote: Made a quick intro to SCS air conditioning unit video - no edits… https://youtu.be/siXtLCFn-yo
I enjoyed your video, makes it seem as though it is something that I will be looking into in the very near future.
Living and driving out of Phoenix when it is 110F out is a regular occurrence and the air conditioner will need to be in top notch shape. Once I get the garage finished (very soon) I did plan on taking the air conditioners out and cleaning it to make sure it has optimal airflow and heat transfer from the coils.
So, how hard is it to get the air conditioner out of the motorhome bays? Is there a step by step procedure written up, or is it simple?
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