[Accrs] ACCRS Cooling System

[Alameda County Central Railroad Society]

Thanks to John for spearheading the cooling effort, I know we will be when
it heats up this summer.

On Fri, Jun 1, 2018 at 4:19 PM, Alameda County Central Railroad Society <
accrs at mail.accrs.org> wrote:

> Message From: Becky and John Kolberg  bjkolberg at aol.com
>
>
>
>
> A small army of people from both the O and HO scales attacked the club
> cooling system in the last few weeks to assure the cooling problems we
> faced last year are not repeated.  There were three fronts of this attack:
> 1. fix the inoperable exhaust fan, 2. replace the crushed swamp cooler on
> the HO side, and 3. replace the cooling pads of the other seven swamp
> coolers and check for any problems in them.
>
> *Exhaust Fan:*  In the midst of checking out the exhaust fan, Robert
> Lopez correctly diagnosed the problem as a faulty ballast.  By the time he
> had descended the ladder, he had ordered new ballasts (one for each of the
> two fans).  He installed them the following Friday---problem solved.
>
> The importance of the exhaust fans was determined some years ago when an
> experiment was run.  The comfort level was observed by leaving the exhaust
> fans off while the coolers were on, and then again when the exhaust fans
> were finally turned on.  What was found was the upper volume of the
> building filled up with hot air without the exhaust fans running.  This hot
> air and hot building radiated warmth to the inhabitants below.  When the
> exhaust fans were turned on, the comfort level was significantly improved.
>
> *New Cooler*:  Gary Lewis ordered a new cooler to replace the old damaged
> unit.  When he delivered the cooler to the club two Fridays ago, a swarm of
> volunteers jumped in to assist installing it that night---a job well done.
>
> *Rehab of coolers:*  Last Saturday Kevin Mahan and I started the process
> of replacing the scaled cooling pads with new ones.  Midway through the
> job, the Bursleys showed up to help.  After the pads were replaced and some
> float valves replaced, the master switch was thrown and only a couple
> coolers started.  One by one, the problem(s) with each cooler was
> identified and fixed.  Most of the problems were simple: plug it in, reset
> the gfi.  Two of the water pumps were shot and replaced  As of yesterday,
> all eight coolers were working.  Hopefully we will have an opportunity
> before the Fair to test the system with warm weather to assure all the
> problems are solved.
>
> John Kolberg
>
>
>
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