http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind0410A&L=vanagon&D=0&P=38343&F=P
Seems model # A10-2710VP might do a better job than stock or computer
case fan. (moreover, 2 computer case fans)
Neil.
On Thu, Jun 4, 2009 at 2:52 PM, Deke Rivers<dekeriv@bellsouth.net> wrote:
> I have seen numerous comments over the years about adding new fans to
> promote better air movement around the condenser. All have been cpu type
> fans. Has anyone ever put in a blower-type fan that would pull in the air
> from the side and direct it out the top? It seems to me this might be more
> efficient since it would not just move the air but actually direct it
> towards the top and out from behind the frig.
>
> Deke
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Keith Hughes
> Sent: Thursday, June 04, 2009 3:24 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Dometic Frig - Realistic Cooling
>
>> From: Deke Rivers <dekeriv@BELLSOUTH.NET>
>> Subject: Dometic Frig - Realistic Cooling
>>
>> I have an '86 Westy with the original Dometic Frig. It is cooling on
> either
>> gas or 110AC - with maybe a slight advantage on the AC. But it is just
>> border-line on keeping the interior below 40 degf. What should it be able
>> to do? Can it get below 40 degf if its 80 degf outside? How about 90
> degf?
>
> On average, a well functioning unit should give you a 40-50°F
> differential. However, the differential is also proportional to the
> ambient temperature. The lower the temperature, the greater the
> differential between the boiler temp and the condenser temp, and the
> greater the efficiency. Above about 110°F ambient, the efficiency drops
> dramatically. Once the ambient nears the boiler temp, the unit no
> longer functions. At 80°F ambient, my unit (with additional rear
> condenser fan, and dual internal CPU fans) will reach a differential of
> about 45°F. At 115°F (in my garage) it drops to about 15-20°F differential.
>
> Keith Hughes
> '86 Westy Tiico (Marvin)
>
--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"
http://tubaneil.googlepages.com/
http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
