Forum Discussion
JBarca
Oct 19, 2022Nomad II
Baja Man wrote:
I added a few pics, perhaps these are easier to read.
There are no pics extra pics showing up, did you miss posting the,?
I will pass this along to consider, I used a 3 speed fan installed in the roof vent. I started with the fan on high thinking that was a good thing. And I had a fan in the lower compartment blowing upward that was on wire plugs that I could unhook it.
I found out it was not a good thing to over fan the system. The fridge then worked too well, the compartment went to 30 F or slightly below and freezing things inside. I ended up putting the top fan on slow, unhooking the bottom fan and the fridge settled into 33 to 34F consistent.
See here, this may help you. I installed a thermal disk switch just for the upper fan so it turns on and off as needed. You may consider this for your new fans.
This is a double bearing fan made to run in the horizonal direction. The small black cube is the 3 speed switch
3M 33 taped the motor and the speed switch to help make it more dust and water protected. The speed switch is outside the grill, just unscrew the roof vent cover and adjust switch.
Folded screen back down and Dicor no sag caulked it shut
The thermal disk switch
I have done this on several campers. I also created a better bracket for the disk switch if you want to see it. I have to upload the pic, it is not on my file server.
If you put all 3 fans wired at once, you may have too much fan. Suggest running wires on the new fans down to the open compartment area where you can unwire (or unplug, use plug type connectors) them as needed. Make sure you fuse this. Those tiny fan wires will be the fuse if a short ever happens.
Once I see your diagram, I can answer your questions better if they will still be needed after reviewing this reply.
John
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