Just fitted a Maxxfan to my 2021my Adria Twin Supreme 640SLB so thought I’d describe how I installed it to help anyone thinking of doing the same and also allow others to tell me how I did it all wrong .
The existing roof light is fixed onto a black gasket with sealant so came off easily by sliding a blade between the roof light and the gasket. The remaining old sealant was then cleaned off with white spirit leaving a flat gasket 40 x 40cm. I used sikaflex to bed down the Maxxfan base and then secured with screws.
The difficult part of any Maxxfan install is getting 12v to it, Adria helpfully pre install a 240v cable from the rear roof light to alongside the mains breaker unit. The cable at the roof light was a bit of a pig to get as it was just beyond reach behind the timber. In the end I had to cut some of the timber batten to reach it.
Now to get a 12v supply to the other end of the 240v cable. Doing some research I found 3 ways to get the supply. Fish a cable under the dinette floor and connect to the leisure battery, do the same but connect to the 12v fuse box or take a feed from the back of the 12v socket beside the tv. I chose the last as I thought it the easiest.
Piggybacking to the 12v socket was easy. Drop a cable finder down the back inside the wall. Behind the dinette seat back there is a hatch, take that out and it helps drop the cable finder down and behind the boiler. It’s then simple to pull the 12v positive and negative cables through and connect to the 240v cable. I put a switch in so I could switch off the supply to the Maxxfan to save power as it’s on standby all the time for the remote control.
Back onto the roof of the van, drop in the Maxxfan, being careful of the cables, and put on the internal frame. Done.
Overall it took me around 4 hours.
Away for the next 3 nights and looking forward to seeing what difference it makes.
The existing roof light is fixed onto a black gasket with sealant so came off easily by sliding a blade between the roof light and the gasket. The remaining old sealant was then cleaned off with white spirit leaving a flat gasket 40 x 40cm. I used sikaflex to bed down the Maxxfan base and then secured with screws.
The difficult part of any Maxxfan install is getting 12v to it, Adria helpfully pre install a 240v cable from the rear roof light to alongside the mains breaker unit. The cable at the roof light was a bit of a pig to get as it was just beyond reach behind the timber. In the end I had to cut some of the timber batten to reach it.
Now to get a 12v supply to the other end of the 240v cable. Doing some research I found 3 ways to get the supply. Fish a cable under the dinette floor and connect to the leisure battery, do the same but connect to the 12v fuse box or take a feed from the back of the 12v socket beside the tv. I chose the last as I thought it the easiest.
Piggybacking to the 12v socket was easy. Drop a cable finder down the back inside the wall. Behind the dinette seat back there is a hatch, take that out and it helps drop the cable finder down and behind the boiler. It’s then simple to pull the 12v positive and negative cables through and connect to the 240v cable. I put a switch in so I could switch off the supply to the Maxxfan to save power as it’s on standby all the time for the remote control.
Back onto the roof of the van, drop in the Maxxfan, being careful of the cables, and put on the internal frame. Done.
Overall it took me around 4 hours.
Away for the next 3 nights and looking forward to seeing what difference it makes.