Re: Re: Motorised radiator valves

["Jon Wilkins" <jonpdwilkins@xxxxxxxxx>]

Thanks Jon,

Do you remember the specific actuator model / where you purchased it from?
(If it was Idratek the it will probably have been the variant listed
in the PDF (AXT 111 202).  )

M30x1.5 appears to be quoted on many TRV vendor's sites as the
"standard" so I think this would probably fit my Drayton valve,
leaving a bit more investigation on the Westherm.  I see Sauter do
adapter accessories but I can't yet see a vendor.

I'd noticed that it's a 24 v unit and was thinking initially to power
the "test" locally (plug in PSUs near the two rads) but was
thinking
if I ended up putting this throughout then a central PSU would surely
be more efficient.

jon

On Nov 27, 2007 9:18 AM, JonS <semi.jon@xxxxxxx> wrote:
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> --- In ukha_d@xxxxxxx, "Karam Karam" <kzkaram@...>
wrote:
>  >
>  > Jon,
>  >
>  > We supply some Sauter actuators with an M30 fitting, but its
also
>  > important to work out if the actuator stroke and fit to the
>  existing
>  > valve pin is suited.
>  >
>  >
>
>  I tested a Sauter unit before purchasing Honeywell VT117E TRVs which
>  appear to bath fit and have a compatible stroke. I went to a
>  plumbing centre at a quiet time, tested a load of TRV bodies with the
>  sauter head and bought a couple of canditates. I then tested at home
>  a returned the one I didn't want and purchasaed a bunch to the VT117e
>
>  I also tested a John Guest actuator (from screwfix) and I think these
>  also had the same fitting. IN the end I went for Sauter as they do a
>  24V version so I have run the control cables in cat5 rather than
>  mains cable and they can be used in bathrroms too. Obviously I need
>  to buy a 24V supply to get it working, but its a project for another
>  year, but the wires are all waiting :-). Not good if you are looking
>  for a wireless soln!
>
>  IIRC the sauter valve can be configured NO or NC and have an optional
>  internal switch so you could then measure if the valve has opened. I
>  noted that the run power consumpion of the sauter style actuator is
>  less than motorised zon valves but the action is not instant, takes a
>  few minutes to operate.
>
>  HTH
>  Jon
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>