Hi looking for advice regarding set up and installation changes to my fridge. Long winded to try and include detail .. sorry
Current set up in Iveco Daily Van 12 v . Vitrigrigo 130l upright, mini fluro lighting, a couple of cig lighter sockets, full exterior lighting off 60amp lighting relay ( two spots, flasher/strobe ..was a wide load escort vehicle). Redarc 100amp microprocessor solenoid between starter and leisure battery (120AH) , 240v AC main connect via 15amp/circuit breakers, and an ac Calibre 20 amp AC/dc smart charger. so charge house battery (inefficiently) whilst driving via solenoid and when plugged in via Ac smartcharger.
I wish to add solar to allow up to two days disconnect from
grid and not much recharge from starting engine.
I am looking at
second 120 aH Deep cycle or marine , possibly get two new matching trojans or similar
200v 12 or 24 v single panel solar .which will be portable, on roof rack or similar but will take off for road
an mppt solar controller 15 amp or
a redarc 1225 20 amp dc to dc charger and mppt solar controller..
a 600watt inverter basic modified sine to run a fan
Apart from fridge and minimal use of lights i wish to run a pedestal fan at night if hot... I live in the tropics. so planning on 240 v fan through inverter .. not convinced the 12v fans i have seen push enough air for me
Insulating around fridge
Adding air vents for fridge (low in and out hi) and a 200mm computer fan at bottom
Adding some form of cabin air extractor/air movement to help get hot air out of the van .. the two days camping time is unavoidably going to be largely in the sun.
Questions
1. Are there variable voltage alternators that need to be wired differently , as a euro truck, i have seen some mention of this but no definitive answer as yet.. so question re wiring from battery/alt
2. Insulation/ Air .. was nothing except tightly packed in 3mm ply with remote danfoss35 compressor on top i plan for 50mm polyurethane sheeting on bottom/sides and top but not sure of back,, the VF tech spec has an extra measure of 30mm at back... is this just to not squash the hoses/piping or is it a air cavity?? the back of the fridge is sealed???? so no vanes/heatsinks etc i know of
So can i insulate the back as
well?
3. Output of solar / load if fan used for 8 hours ,,, and fridge going overnight???
Are sums about right/
4. Connection , if i go solar i just add the controller close to house batteries with fuse
If i go Dc to Dc with the solar ( which appeals to me) do i have to isolate it from ac charger etc
5. Cable , connections etc recommend ...
6. Ways to move air to avoid the hot interior... last few outings the inside of locked van plus the venting of the fridge compressor air inside the van made the compressor work hard... still nice and cold beer despite 34degree weather .
All thoughts appreciated Darryl