[Staff] Heating Systems Update: We are back to using the backup systems in HOLD mode

[Wes Ernsberger]

Well, that experiment didn't last very long!  This morning, all 3
WaterFurnace units went down with a Freeze Detect, which means that the
intake well was not able to supply water at a fast enough rate.  So we will
go back to using a combination of the backup system and the GSHP system.
I'll touch things up when I come in this afternoon before choir but until
then, feel free use the override button to set the old system thermostats
to whatever temperature you need and use HOLD.  The four backup system
thermostats are in the sanctuary, the office, the social hall, and the
nursery.  Zones that you don't need can be left alone .. they will slowly
drop down to 60 degrees and then the backup system will kick in.

I have already restarted the WaterFurnace unit that covers the Fireside
Lobby and the Chapel.  So far, that is running fine.  As you recall, the
old system does not cover those spaces.

My plan is for us to go through the rest of this heating season this way.
The Dailey people are scheduled to come back this spring to do a more
long-duration treatment of the intake well.  I'll report this incident to
them but I don't see it as affecting that plan.

Thanks for your patience,

Wes

On Wed, Feb 12, 2025 at 9:08 PM Wes Ernsberger <wesernsberger at gmail.com>
wrote:

> It has been nearly a month since Dailey came in and made some improvements
> to our system and since then we have not had any "Freeze Detect"
> shutdowns.  So this morning I switched the backup system back to its normal
> use where it will take over only when temperatures in that thermostat's
> zone drop to 60 degrees.  This is the set point they are programmed for and
> so now no HOLD is required when using our backup system and we should not
> be using it.  Feel free to do overrides as needed when it is not warm
> enough .. zones will revert back to the 60 degree set point at the start of
> the next program interval (there are 4 per day).  The place to use HOLD is
> for special cases like youth lock-ins when you want the temperatures to
> stay steady for a long time .. across program interval changes.
>
> Thanks, Wes
>
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