Friday, May 09, 2003 at 18:38
Having looked at a number of new caravans lately I have found that most have there 3way fridges fitted pretty well to the standard required for installation except for one thing, under sized cables to the "hot wire" and van battery.
Most cars are incorrectly fitted with under sized "hot Wire" from the battery to charge the deep cycle battery in the vans, let alone run the 3way fridge properly. understadably people will get the wrong impression & incorrect information.
most modern cars are capable of 80%-90% charging deep cycle batteries while being driven for sufficient time providing the correct size cables are fitted to reduce voltage drop to tthe van. when my ageing parants decided to go travlling I re-wired the van & car hot wire to 12mm square cable with anderson
plug connector, the VT commodore's standard alternator has no problem with this setup.
the 12 volt on the 3 way is there only for while in transit, which correctly setup will work fine.
yes if you have a big enough battery bank & panels you could run it off 12volt all the time(way big setup), but it's really designed for runing off 240v or gas full time. the standard fridge installed in there 12 month old millard van worked perfecty off gas & 240 volt while in Darwin
in January (yes the silly old buggers where therer for the wet), mind you they have an airconditioner in the van as well !
They didn't report any problems while moving around running off 12 volt.
electrolux is the largest manufaturer of refrigeration equipment in the world, they own EMAIL who make domestic refrigertion & appliances here in Australia
. (Danfoss is part of electrolux! or was it the other way around?)
oversea's they don't use R134a in small refigeration equipment as it's very in effiecient as a refrigerant they use R290 which is a hydrocarbon (isopropane/butane) which is far more efficient but some bloody stupid people got it banned in OZ because they thought it was un safe to use, meanwhile we get to have second best efficency with our locally made equipment!