Refrigerator Circulator Fan
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Jul-16-2018 07:20 PM
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Jul-17-2018 06:42 PM
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Jul-17-2018 06:24 PM
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Jul-17-2018 02:00 PM
I aim my Sunon fan so that it blows air into it. It used to have a flap for the freezer door but I removed that. When i open the door it is basically pushing ambient air into the freezer. Unideal. I intended to play with location and test results, but have not bothered in the nearly 6 years I;ve been using this fridge
In the pics above, with fan s pushing air across a tiny percentage of the fins, that also seems less than ideal and a fan circulating air across more of those fins would seem to be better, but any airmovement inside is going to help the fins suck heat from the items within.
the 40mm Noctua draws 0.05 amps, that is the same as the 1500rpm 120mm nf-f12 which moves 6x more air for the same amperage consumed.
My 0.03a 40mm Sunon maglev fan does not seem to be available anymore, but it was the lowest amp draw fan I could find in 2012
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Jul-17-2018 01:38 PM
Do you want a fan blowing down a couple fins horizontally?
Looking at the fridge i was going for a circular clockwise air flow. Fan blows down on the right side. Thought it might reduce loss when the door is open. I would like a switch that kills the fan when open. Might not matter since the fan will spin for a good couple seconds after it powers down.
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Jul-17-2018 01:05 PM
pianotuna wrote:
Hi,
The first url is invalid, and the other is not visible to me unless I do a quote.
This looks better:
https://rvcoolingunit.com/Norcold-Evaporator-Fan-Greater-inside-Cooling-Custom-Deluxe-wGrill-P323995...
I was also interested in getting one of these fans but the plain jane model with no lights is no longer available. you have to purchase a "deluxe" model at $75.00 now. The no frill models are still listed and cost only $25 but all are out of stock.
A HUGE jump in price just for LED lights.
I am now looking to build my own with some CPU fans. No way I'm paying $50 more just for LED lights.
Dave
2017 Grand Design Reflection 27RL 5th Wheel
Dear Wife, plus two Cocker Spaniels and a Standard Poodle
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Jul-17-2018 10:23 AM
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Jul-17-2018 10:10 AM
The first url is invalid, and the other is not visible to me unless I do a quote.
This looks better:
https://rvcoolingunit.com/Norcold-Evaporator-Fan-Greater-inside-Cooling-Custom-Deluxe-wGrill-P323995...
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
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Jul-17-2018 10:04 AM
I'll probably use this...
cooling fan
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Jul-17-2018 09:32 AM
https://noctua.at/en/products/fan/nf-a4x20-pwm
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Jul-17-2018 08:26 AM
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Jul-17-2018 08:25 AM
But much better muffin fans are available.
Shop around here, look a the specs:
http://www.frozencpu.com/cat/l3/g36/c15/s673/list/p1.html?id=YVLuABVA
The Fan does not need to move huge volumes of air, and the more powerful the fan the more heat it generates, increaseing the load on the fridge.
If that were my fridge i would determine the fan size and then look for another fan with dual ball bearing and a very low amp draw.
I have a compressor fridge, which I put a 40x15Mm fan inside. It is a Sunon Maglev fan which draws 0.03 amps and only moves some 6.3cfm.
Huge difference in fridge temps and I can use need to use a lower t stat setting, or things freeze. 2.5 of 7 is 32.5f, and much above that and things start to freeze.
without the fan and I require a setting of 4 of 7 and the temperature inside varies from 28.5 to 44f according to my IR temp gun searching for highest and lowest.
With fan and that range is only 2f.
A 70f beer can is 31f in about 3.5 hours.
Chkfweeep gurgle gurgle gurgle, ahhhhhh.
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Jul-17-2018 07:55 AM
2003 GMC Yukon XL 2500 4X4 Quadrasteer
2010 VW Routan
2007 Chrysler Pacifica AWD
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Jul-17-2018 07:47 AM
May I ask for a link?
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
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Jul-17-2018 07:00 AM
1997 Ford 7.3 OBS 4x4 CC LB
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Jul-17-2018 05:50 AM
Email the seller to see which one
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