Here is a picture of my crx110 controller. Although hard to see I have a pair of wires - red to F and Black to top C. I assume this is the fan already attached to the cooling fins of the fridge. I assume they wires are reversed for the bi-directional fan?. Is F negative. Your diagram above indicates both F and C are negative.
To attach an extra fan can I hook into the 12/24vdc as the positive and the negative to F. when the fridge is on and the compressor is running F terminal completes the circuit to allow the extra fan to run.
cheers
Craig
-- Edited by Kellaig on Friday 19th of January 2018 10:03:50 AM
It looks like Waeco Dometic have the 101N0500 controller re named MFC20AD but they are both the same. Heres the Danfoss recommended way of wiring them. The F terminal grounds the fan neg lead when compressor runs. Asuming the fan on your condencer is a typical brushless type (computer type fan) then they are not reversible.
i will insulate the fridge first to see how it goes. Thanks for your advice and its good to know i can piggyback onto the F terminal to add an exhuast fan if more cooling is needed.
As with all caravans, time spent in them can be difficult to arrange and this may take me a while to sort.
