Dometic 8501 3 way fridge performance.
Submitted: Monday, Mar 19, 2018 at 20:50
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Olympic
I have often noticed that people are keen to know the performance of 3 way fridge & info is very limited.
I fitted a brand new Dometic 8501 into my caravan on 17/3/18. The weather was 33deg, extreme winds, & bush fires 15km away.
I used 2 Fluke meters to record temps. ($300 ea)
I started with 1/2 lt of water in freezer & 1 lt water in fridge. Water temp was 32deg.
The temps recorded were AIR temp. Fridge on 240volt.
Start up. Fridge...27.0....freezer....26.9
1 hr later,.............19.3..................... 2.5
next hr..................12.8.....................-4.2
next hr...................4.4.....................-13.2
Total temp drop.....22.5...................40.1.
The climate rating of the fridge is ST, I fully insulated it with 3.5R insulwool & packed up the spacing behind to have a gap of 40mm between the wall & burner cover per installation instructions
I am very happy with results & hope the information is helpful.
Reply By: Olympic - Thursday, Mar 22, 2018 at 20:13
Thursday, Mar 22, 2018 at 20:13
Did a
test with the fridge today on gas. Temp was 29.5 deg, & water was same as last
test. Results were very similar, but I will
check the gas regulator tomorrow as I felt that the gas was roaring a bit much, & a lot of heat generated. 11in water pressure is what is required. I will do a
test on 12 volt tomorrow as it is going to be a hot day.
Start up...Fridge...24.8....Freezer.24.9.
1 hr later...............19.8................. 3.3
next hr..................15.3.................-4.8
next hr...................4.9.................-14.0.
Total temp drop....20.0.................38.6.
Going by the above comparison, 240 v is slightly better, although will
test gas pressure & post with 12volt results tomorrow
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