Monday, Jan 16, 2006 at 12:44
Desert, you say “Yes, the Reefer will cool down very fast, but it is only measured in minutes" yes I agree with you, it does only take minutes to cool down, that's why it uses less power than is expected :-)
As far as cycling on/off is concerned, when my fridge returns to +1 degree it turns off, (cycles) then when it gets back up to 6 degrees it turns back on, and I can guarantee you that it stays off in excess of an hour in the back of my vehicle even on an average West Aussie 28 degree day, and it would be hotter in there, I know because I have actually checked the running time on verses time off, obviously it has good insulation.
As to your statement that the Liemack fridge was recomended to be connected to two Cranker batteries wired in parallel, yes reason being that the Liemack, and yes even most other fridges, do have a low voltage battery disconnect system built into them, and yes they do work. Most people use a 'second battery' to run the fridge, many use two Cranking batteries in parallel, and then some prefere to use an independent Deep Cycle battery system, however any fridge ‘low voltage cut-out’ will ensure the battery system, which ever you use, will not be run so low as it becomes dangerous to the health of the battery, if using two Crankers wired in parallel, it will avoid the Cranking battery from getting discharged too low to start the vehicle next morning, that was the Liemack system.
You say “either you falsely rely on the low-voltage cut out and a healthy battery, or you have to have a third battery wired in for starting” are you honestly suggesting ‘every’ fridge low voltage disconnect system used by all the fridge manufacturers are unreliable and can’t be relied upon to work, therefore you need to use a third battery just to start the vehicle? Should I take a second fuel injection pump just in case mine stops working one day, as it makes no sense to me to use products that I don’t have complete faith in when I go bush :-)
Sure I have a few spare tyres but you expect to blow a few by the very nature of where you drive on them.
I’ve stated the power of the Mitsubishi rotary compressor is far superior to any piston compressor so will not argue with you on that point as it is a total waste of electrons, however, yes as you say many fridges will go down to zero degrees and “their ampere/hour draw is more reserved” however the point you are actually missing is, yes those 'economical' fridges use less amps when they are working, however and unfortunately, because they are actually working for far longer periods of time, remember in the north where you need good refrigeration some less efficient fridges never actually turn off in the high ambient temperatures, whereby the Reefer does use more amps ONLY when running, but it runs for far LESS time due to it’s higher capacity rotary compressor, therefore often using less
battery power than the ‘more reserved’ fridge that is running flat out full time.
I posted “I enjoy my ice-cream frozen and the fruit and vegies at a realistic low temperature” you didn’t question that, is it because you are fully aware it works that way with a Reefer fridge?
I choose my fridge simply for “best refrigeration performance” not on price or even battery economy, I expect to have frozen ice-cream whenever I want it, while still having the fruit and vegies remain at a constant 3 degrees!
I use Deep Cycle batteries capable of powering the fridge and all other accessories, therefore I don’t have battery problems either, saving money is not relevant, saving food is, and when the food is
barramundi it’s even more important to have a fridge you can rely on to keep the fillets frozen and yes you throw out the ice-cream to make room for the frozen fish fillets :-)
As to your statement about my system being somehow dangerous (fraunt with danger) I’m sorry I can’t agree, as my system is fully independent, the Deep Cycle batteries only run the accessories and the Cranker battery is automatically disconnected from them when stopped, the Cranker battery only has to start the vehicle, and I believe every Aux battery system is … and should be, installed to meet this criteria.
Mainey...
FollowupID:
402072