RE: Automating the Central Heating

[Mike Griffiths <mike@xxxxxxx>]

Mark
The trouble with using the AD10 is that you lose the hot water control
On my system I have put a relay in the feed from the timer to the boiler
control
This is normally closed
To control the heating then I set the timer to always on and open the relay
when I don't want heating
It was quite easy to trace the circuit on my boiler beware though it as all
operating at Mains voltages
None of the nice 12v stuff here I'm afraid
With regards to LetAutomate returns
I just Emailed Mike with the problems and he sent me another

Mike

Sent from Home

-----Original Message-----
From: Mark Hetherington (egroups)
[mailto:mark.egroups@xxxxxxx]
Sent: Tue 21 Aug 01 00:28
To: ukha_d@xxxxxxx
Subject: [ukha_d] Automating the Central Heating

OK, it is finally time to look at this. This AD10 is looking very lonely so
want to get it online. System is a Combination boiler with an external
"programmable" [sic] electronic timer. The whole area seems to be
powered
from a fused spur (Ugly switch on the landing can cut power to the boiler
(and I suspect to the alarm system!).

As with everything else I want to be able to unautomate if/when I move
house.

I wondered about using an AW10 to replace the Fused Switch or put inline
with it or something but I suspect this might kill the alarm and would mean
I have no hot water without any power to the boiler. So it looks like the
timer is the candidate. Seems to be wired in with alarm style wiring so I
imagine it is a case of removing the wiring from the timer and adding it to
the AD10. Or should I be combining the two in some way?

Any good resources on programmable timers or replacing them on the web?
Searched for a while tonight but didn't come up wuth anything and I know a
few people have been doing this recently so thought I'd ask about their
particular challenges and experiences.

Thanks,

Mark.


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