[Coco] OT: Heat / A/C controller replacement

[Louis Ciotti]

Hmmm I know this is an OT thread, but I am still trying to figure out
what the homebrewed second controller actually does.  From your
description it is confusing.

You said "What I have done is break the power lead to that controller
and control the power to it using a home built temperature controller"

This sounds like what you have done is remoted the thermostatic on/off
up to the second floor so you do not have to go down stairs to adjust
the temperature but basically making/breaking the power connection to
the main first floor thermostat.

Then you said "that has switches to select heat or A/C mode which must
match what the downstairs original controller is set to."

This is the confusing part, what do the switches do if they have to
match the first floor controller.  So if the homebrew on is set to
heat at the original one is set to AC what happens?


On Fri, Jun 8, 2012 at 8:03 AM, Jim Hickle <jlhickle at yahoo.com> wrote:
> Now that I am older, I would probably just put a thermostat on each floor and walk between them and switch manually.  I think I understand why you wired it the way you did.  I once had a '72 Cutlass with AM radio, FM converter, 8-track player, cassette player and CB.  All of it was wired with relays to switch the speakers to the active device. And some had to be turned on in a particular order.  My dad couldn't understand why I wouldn't just turn things on and off myself.  Now << I >> don't understand why folks can't just walk across the room to change the TV channel.  Knobs, darn it! I want things to have knobs again.
>
>
> --- On Thu, 6/7/12, Stephen H. Fischer <SFischer1 at Mindspring.com> wrote:
>
> From: Stephen H. Fischer <SFischer1 at Mindspring.com>
> Subject: Re: [Coco] OT: Heat / A/C controller replacement
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Date: Thursday, June 7, 2012, 11:13 PM
>
> Hi,
>
> If I was talking about the heat / AC control that was installed downstairs ~ 1970, then a simple replacement like you suggest would work.
>
> BUT the problem is, how do you connect TWO of these with 5-6 wires at the SAME time.
>
> If there is an understandable diagram online then I might be able to figure out what I did, looking at the wires connected to the heat / A/C it is puzzling to me right now what I did.
>
> I just have two wires that when shorted turn the heat or A/C on. The downstairs controller sets the mode and will turn the heat / A/C off it it's setting is exceeded.
>
> SHF
>
>
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