Re: Suggestions for HA friendly heating components

["Graham Howe" <graham@xxxxxxx>]

Excuse my ignorance. but what is a 1820 sensor and what did you use for the
over-ride button (push to make switch or normal two position switch). Also
does this mean you have no heating controller and that HV does everything,
or is there still a controller with the basic 24 hour heat/hot water
control. If you do have a basic controller then how does that work with HV,
for example if heating is off at the controller then HV controlling zone
valves will have no effect. Alternatively how is HV controlling the boiler,
simple relay would do I suppose, with manual override again. Finally do you
have hot water as a 'zone'.

Regards

Graham
----- Original Message -----
From: "Julian Driver" <julian@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Monday, October 30, 2000 1:48 PM
Subject: Re: [ukha_d] Suggestions for HA friendly heating components


> Graham,
> I have an 8 zone system running on HV via 1820 sensors in each zone.
HV
> drives a relay for each zone which opens or closes a zone valve. It's
> dead easy. I also have a button on each sensor case for over-ride
> purposes.
>
> In message <001c01c04260$194accc0$2701a8c0@ec2a1nl101737>,
Graham Howe
> <graham@xxxxxxx> writes
> >    Following recent discussions here I thought it might be
sensible
> >    for me to
> >    upgrade my current heating system. We are about to get a
bathroom
> >    and shower
> >    room completely refitted and this will involve replacing out
> >    current puny
> >    little hot water tank. Of course this means draining the
system and
>
> snip
> --
> Julian Driver
>
>
>
>
>
>


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