Remove a Dometic Penguin, but keep the furnace?

[belugarv]

Hello - I have a 2011 BornFree 27RSB with a Penguin 13.5k AC unit and a propane furnace both using the older style 5 button Dometic thermostat.

I'm going to be swapping the AC out for a minisplit. My plan is to replace the original rooftop AC with a vent to give me some additional room for Solar panels up top. I wanted to keep the propane furnace. In reading up on things tonight though it seems like the furnace is actually controlled by the AC - Is that correct? Any idea how to do away with the AC and keep the furnace?

Thanks for your help!
Liam

[Skip426]

Welcome to iRV2

Yes the control goes from the thermostat to the roof A/C control board and then to the furnace.

Details in the " Files " drop box ; heating and cooling section ; Dou Therm CCC , pdf.

You could remove the control board from the roof A/C and insulate it and lay it in the roof trusses .

[belugarv]

Originally Posted by Skip426

Welcome to iRV2

Yes the control goes from the thermostat to the roof A/C control board and then to the furnace.

Details in the " Files " drop box ; heating and cooling section ; Dou Therm CCC , pdf.

You could remove the control board from the roof A/C and insulate it and lay it in the roof trusses .

Perfect, Thank you. I'm glad I thought to dig into that before I pulled the unit off the roof. Heaven forbid they just run standard "normally open" residential thermostat wiring to each component

[shootist]

It’s to keep you from running the ac and the furnace at the same time. And without it you will screw up once in awhile.

[Skip426]

Originally Posted by belugarv

Perfect, Thank you. I'm glad I thought to dig into that before I pulled the unit off the roof. Heaven forbid they just run standard "normally open" residential thermostat wiring to each component

That would be too " Old School " everything has to have a control board and/or a computer and a remote control to sell these days .

[Skip426]

Forgot about " apps " and control from your smart phone !