adding 2nd a/c unit

**BobnColo** · 06-11-2021, 04:51 PM

Anyone done it? Our unit is wired for it but bought off the lot it it didn't come with it. Just wondering what the cost is and how long it normally takes. Yes, I know, all the shops are swamped but just a ball park will do. Thanks

**Big Blue** · 06-11-2021, 05:46 PM

Easy install once you get the new unit on the roof.... Ordered mine from Rvupgrades.com for about $900...+ inside panel... installed it my self in about 2-3 hours.... including removing the vent and sealant... A Mobile Tech should be able to handle this...

**BobLandry** · 06-28-2021, 05:53 AM

The hardest part is removing the sealant from the vent. You just have to go slow.The AC fits the framed vent space, the wiring is already in the roof and the thermostat wire is in the wall. You just drill a hole above the light switch and fish it out. I hired a mobil tech to help me. Money well spent.

**OurNewEra** · 06-28-2021, 07:04 AM

Originally Posted by BobnColo

Anyone done it? Our unit is wired for it but bought off the lot it it didn't come with it. Just wondering what the cost is and how long it normally takes. Yes, I know, all the shops are swamped but just a ball park will do. Thanks

I would agree with others that the install is pretty easy if your unit is pre-wired. I installed one on my vintage Airstream and it was pretty easy. The hardest part was getting it onto the roof. Of course our Airstream is much lower than our 2970's. The hardest part would be getting the unit onto the roof. The units weight about 100 lbs. As @BobLandry did if you are not able to install yourself you could order a unit (if you can find one) and use an RV Mobile Tech and not have to wait on the RV dealers to open up a spot.

**BobLandry** · 06-28-2021, 07:19 AM

The tech charged me $360 and he was there about two hours. He also had a lift(Home Depot rental) that was $70 of that and well worth the cost. It's the safest way to get one on the roof. Wiring is straight forward. The cable suplied by GD matched the colors of the thermostat wire, so that's a no-brainer. I did have to connect the thermostat gray wire to the white one in the cable. This thermostat did not control heat. The 12V wire supplied in the ceiling is not open ended so don't try to pull it all out looking for an end to connect to. Just splice into it.
A mobil tech is going to be as cheap , if not cheaper, than your dealer, plus, he will be focused on your job instead of blasting through it to get to the next one. I don't set the bar very high for dealerships. I've seen them do some pretty shoddy work.

**SmokeyBear** · 07-06-2021, 11:34 AM

Our 2021 Reflection 337RLS did not come with a bedroom A/C (blame COVID)...the one we have is a Coleman Mach 15. Is the same model typically used in the bedroom or is it a smaller unit? I was going to contact Grand Design with my coach serial number to ask what would have they installed at the factory. thanks in advance for any assistance.