Sent:
Friday, July 06,
2001
10:49 PM
Subject: RE:
[ukha_d] Automate my central heating - How?
Ahh,
but
some of the timers are mounted on/in the boiler itself and could be using
DCV
and not the ACV from mains like my Vokera did although the timer was 240AC
in
that one, others are not. Just a bit of advice nearly learned the hard way
J
K.
-----Original
Message-----
From: steve
[mailto:steve@xxxxxxx]
Sent: 06 July
2001
22:33
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Automate
my
central heating - How?
You can of course use a relay contact in place of the
thermostat/timer
and avoid even having t try to figure out the internal wiring of the
boiler.
On mine personally the heating
side
of the combi is controlled by a triac which has to be sufficient rating to
carry the pump current. A relay would have been
simpler.
----- Original
Message
-----
Sent:
Friday, July 06,
2001
7:22 PM
Subject: RE:
[ukha_d] Automate my central heating - How?
Justin,
Scary stuff, I wanted to do this in my last
house
that had a combi,
here's the hurdles:
1. You need to find out what wiring fires the
boiler on from both the
boiler stat and the room stat.
2. If it's off the internal timer, or a
separate
timer, you need to
isolate which wires switch the boiler stat, to
bring the boiler on.
3. You need to find the *INTERNAL* switching
voltage of the boiler, some
operate on 24V, some on 12V and most on
240AC.
Then you can start to figure out how or what
you
want to do.
K.
-----Original Message-----
From: Justin [mailto:justin@xxxxxxx]
Sent: 06 July 2001
14:45
To: ukha_d@xxxxxxx
Subject: [ukha_d] Automate my central heating
-
How?
I am clueless when it comes to electrics so I
thought I would ask before
I
blow somthing up!
I would like t be able t control my gas
combi
boiler using X10 but am
not
to sure how to go about it.
The central heating works on a built in timer
at
the moment (not while
it's
this hot though!) but there is a thermostat in
the
garage (where the
boiler
is).
Would it be possible t replace this
thermostat
with an AD10 ? I think
the
thermostat switches 220V live though. Does
that
sound right?
Cheers,
Justin
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____________________________________
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