Digital controls

[Bigbovine]

I went to parts at CW to see about replacing mechanical thermostat with Digital. Was told I would have to change the board in the AC unit to Digital so they would work. I do A C for a living and this makes no sense to me. Is the correct in the RV world?

 

[weekender01]

Not sure what unit you have, but most of the time this is not correct. The biggest issue is matching up the correct wires with the digital thermostat. I had an analog thermostat in a previous trailer and changed it to a digital thermostat. Googled the directions and found many videos and instructions on how to match up all the various wires.

Once I wired it up it worked great.

 

[CDN]

Hello,
A Standard Honeywell home thermostat will work to replace a analog one. Drop the R and RC jumper. You need to figure out which speed blower you want, I did select high speed. I did this with a standard AC and Suburban Furnace

 

[danemayer]

They may be thinking about moving to a Dometic digital thermostat, which will not replace an analog thermostat. Residential digital thermostats should work.

 

[Bigbovine]

I guess I should have elaborated a little. I have the Coleman-Mach mechanical thermostat and wanted to replace it with the Coleman-Mach digital unit. The only reason is because I want a digital reading/ more precise control over temperature. I would like to keep things "factory", otherwise I would just grab a cheapy out of my truck to replace.
so, if I understand right I can do this, with no special mods to the main unit? Like I said, I do this for a living commercial and residential, it just didn't sound right when they said that I couldn't swap thermostats.

 

[weekender01]

You most certainly can do that since mine was also a Coleman Mach. It is very easy and in fact I think it may even include the wiring instructions with the thermostat.

 

[Relayman]

the digital coleman thermostat should work nust fine. danemayer is probably
spot on. The new Dometic ac systems use ( believe it or not) uses a modbus-like communications system to communicate between the themostat, and the control board in the unit. Thats the way I understand it.

Sent from my SM-G930V using Tapatalk