Cooling performance with 2 fans?

[DaveC]

This seems like a good idea for several reasons. It serves to aid in air
flow 'calibration', but it can also monitor performance over time, looking
for degradation. Hoses, fans and filters are subject to dirt that degrade
performance. A simple monitoring circuit with alarm set-points would be
ideal here.

I'm the OP.

After reading the user manual closely, I found mention of a thermostatically
controlled temp mains circuit. Mains power is cut if a sensor located near
the critical element rises above a pre-set "safe" temperature.

So it looks like I can play in the "safety zone" of the fan's speed. I'm sure
they built in a margin of safety, pushing much more air than is needed, on
average. So I'm going to drop the speed of the built-in fan -- in trial steps
-- until the sensor trips. Then speed up the fan a little and see how it
works, long-term.

Thanks, folks, for the suggestions.
--
DaveC
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[Olin Perry Norton]

A few years ago we bought some liquid/air heat exchangers
from a company called Lytron. I recall that the fans that
came with these heat exchangers (to blow air over the
coils) were so quiet you could barely hear them running.

We used the Lytron 600o series heat exchangers.

See: http://www.lytron.com/standard/heat-exchangers-6000.htm

I don't know who Lytron gets their fans from,
but they are impressively quiet.

 

[DaveC]

http://www.lytron.com/standard/heat-exchangers-6000.htm

Like this:
<http://www.lytron.com/service/MCS10_Parts.htm>

I'll contact them and see if they're willing to disclose their supplier...

Thanks,
--
DaveC
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[Olin Perry Norton]

DaveC wrote:

http://www.lytron.com/standard/heat-exchangers-6000.htm


Like this:
http://www.lytron.com/service/MCS10_Parts.htm

I'll contact them and see if they're willing to disclose their supplier...

Thanks,

http://www.lytron.com/standard/heat-exchangers-6000-ordering.htm

They seem to use the Muffin XL, Patriot, and Caravel tubeaxial fans
by Comair/Rotron.

http://www.comairrotron.com/ac_fans.shtml