Waeco CF-80 Query Update
Submitted: Friday, Mar 11, 2016 at 15:23
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Member - Gary R M (VIC)
G'day all don't know if anyone will be interested but thought I'd give an update to my query THREAD ID 131114 posted on 13 December 2015.
I noted then that my Waeco had a voltage under load of around 0.75V less than at the battery bank but further investigation showed that this increased to around 1.15V at start up putting it close to the units minimum start up voltage when the battery's voltage was showing in the low 12 V's and think this may have been the root cause of my problem.
Our Wodonga Battery World dealer was particularly helpful and sent the unit away to be tested by Waeco who responded that the unit was operating as intended.
To get around this problem I sold the Waeco (at a fair price) to a mate who reckons my problems won't be his problems and bought a Engel 57 litre fridge freezer.
Took it away for 5 days in the high country recently running on batteries only and it worked like a charm.
Regards, Gary M.
Reply By: Member - WBS - Saturday, Mar 12, 2016 at 08:14
Saturday, Mar 12, 2016 at 08:14
Without quoting voltages because I don't remember them, my experience is that my Engel continued to operate at lower battery voltage than my Waeco when I was having a few problems with my auxiliary battery charging properly. The Engel kept running for quite a while longer than the Waeco that called it a day citing low voltage.
Under normal conditions both fridges work equally
well and I couldn't separate them.
Traditionally I like Engels because I've been using them for 40 years but I can't fault my Waeco and would certainly buy another one if the price was right.
WBS
AnswerID:
597270
Follow Up By: Frank P (NSW) - Saturday, Mar 12, 2016 at 15:37
Saturday, Mar 12, 2016 at 15:37
WBS
The Waeco cut out because it uses a Danfoss compressor which has a low voltage cutout built in.
With an improperly charged or worn out/damaged battery (eg sulphated) battery both fridges will pull the battery down quickly. The Waeco will cut out, as designed, in an attempt to protect the battery.
You can adjust the cutout voltage on a Danfoss compressor by changing a resistor - you need a Danfoss manual to get the right component value to suit your needs. I think the factory setting is around 11.1 volts, but my manual is locked away in my van in storage so I can't
check.
The Engel does not have a low voltage cutout. It will run until the battery can no longer support it. That will be better for your beer, but may stuff your battery, especially if it a repetitive occurrence.
Cheers
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