3 Way fridge fan operation

Submitted: Sunday, Dec 16, 2012 at 19:18

ThreadID: 99510 Views:2883 Replies:4 FollowUps:1

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barry22

Hi,
I have installed a fan to my van 3 way 90 litre fridge. The fan does not seem to cut in early enough, despite quite a lot of hot air coming out of the vent. I believe the switching sensor from JayCar is set at 70 degrees. I am wondering if members have a similar concern, and perhaps have settled on a lower setting. What might be even better, is one that I can adjust to suit my installation ?? Any ideas ??
Thank you for your feedback, Barry

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Reply By: The Bantam - Sunday, Dec 16, 2012 at 19:36

Sunday, Dec 16, 2012 at 19:36

What sort of switch are you using....just a little bi-metalc switch?

70 degrees is fairly warm...you could go for a lower temperture switch.

OR

jaycar sell an automotive kit that allows very accurate temperature switching, if you are able to do electronic assembly.

I think they also sell an off the shelf ready built thermostat....not sure of the temp rangs thought.

cheers

AnswerID: 500490

Reply By: olcoolone - Sunday, Dec 16, 2012 at 21:30

Sunday, Dec 16, 2012 at 21:30

The hot air may not be coming from the condenser that you want to cool, 3 way fridges work by generating heat inside a furnace either by a flame when on gas or a heating element when on 12 or 240v.

3 way fridges struggle on temps above 32 deg C

AnswerID: 500504

Reply By: Member - bbuzz (NSW) - Monday, Dec 17, 2012 at 15:46

Monday, Dec 17, 2012 at 15:46

I have installed two fans, with the thermostat attached to the top of the condenser fins.

I have found that the fans only turn off, when controlled by the thermostat, at night. As pointed out above, the heat buildup over 32'C causes this. However, I feel that the fans taking the hot air out help the fridge to work better anyway.

I will try to paste a doc to show you how I did it.