Re: Alternatives to Randall TP5 room thermostats

["Mark McCall" <Mark@xxxxxxx>]

Have a look here Chris...
http://www.cocoonz.com/sp-omni-RC80.htm

"...127 thermostats up to 10,000 feet apart to be connected to one
RS-232
port..."

Mark

> I am in the process of building a new house and intend to install
> an underfloor heating system provided by Nu-Heat Ltd.  In their
> suggested design they have recommended using Randall TP5 room
> thermostat/programmers to provide independent control over the 7
heating
> zones in the building.  Each programmer is connected, via a central
wiring
> cupboard, to one or more motorised valves on the heating manifold and
> works, as far as I can tell, by simply switching mains voltage to the
> motorised valve on or off.
>
> What I'd like to do is separate the programmer function to a PC whilst
> leaving the thermostat function in the individual heating zones.
Ideally
> each room/zone should have a wall-mounted thermostat with an LCD
> temperature display and simple set-point controls.  A centrally
located PC
> should provide the 24-hour, 7-day programming function for each of the
> zones, by switching in series with the thermostat. I shall probably
put 7
> override switches in wiring cupboard to allow operation of the heating
if
> the computer should fail.  I hate those VCR-style programmers and the
> thought of having to re-program 7 of them from time to time fills me
with
> dread.  A Windows-based front-end which I can re-program from the
comfort
> of my study is much more what I have in mind.
>
> I'm happy to write the software myself but does anyone have any
> recommendations or thoughts on suitable room thermostats and PC
interface
> hardware?
>
> Regards,
>
> Chris.
>
> --
> Chris Davenport
> chris@xxxxxxx
>
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Mark@xxxxxxx
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