Forum Discussion
toddb
Sep 12, 2019Explorer
Well I got this squared away and was able to test it. The problem with the temp stall was how notcold measures the temp. The fins get super cold with the compressor fast, since the thermistor is directly on the fin it was short cycling the compressor and the fridge wouldn't come down more. I pulled it off and let it hang just in front of the fins.
Fridge set on 2: Temps recorded by the wireless thermometer.
Started the night before and let run.
Time fridge freezer outside batt soc
8am 36.1 12.7 85.6 75.6
9am 35.1 6.6 85.6 72.6
I bumped the temp to 3 at 9am
9:50 34.7 5.4 90.7 66.4
11:40 34.9 3.7 98.6 57.7
I moved the camper out of the carport to see how well my solar panels would keep up. Not a great solar day, many low puffy clouds.
12:05 turned solar on battery at 57.3 soc fridge set to 1 to try and maintain 38-40*.
13:00 37.2 battery died 95.9 61.7
14:00 38.8 " 97.7 68.2
15:00 38.8 10.9 99.5 73.8
16:00 38.8 7.7 98.2 77.1
17:00 37.9 6.1 95.0 78.0
Compressor speed set with 270ohm resistor and I printed a fan shroud that helped with subcooling.
Fridge set on 2: Temps recorded by the wireless thermometer.
Started the night before and let run.
Time fridge freezer outside batt soc
8am 36.1 12.7 85.6 75.6
9am 35.1 6.6 85.6 72.6
I bumped the temp to 3 at 9am
9:50 34.7 5.4 90.7 66.4
11:40 34.9 3.7 98.6 57.7
I moved the camper out of the carport to see how well my solar panels would keep up. Not a great solar day, many low puffy clouds.
12:05 turned solar on battery at 57.3 soc fridge set to 1 to try and maintain 38-40*.
13:00 37.2 battery died 95.9 61.7
14:00 38.8 " 97.7 68.2
15:00 38.8 10.9 99.5 73.8
16:00 38.8 7.7 98.2 77.1
17:00 37.9 6.1 95.0 78.0
Compressor speed set with 270ohm resistor and I printed a fan shroud that helped with subcooling.
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