Just been looking at the CH Controls and Zoning section - which discusses
the various heating 'plans'. For each plan - Y-Plan, C-Plan, S-Plan, W-Plan
etc., there is a link to a description on the Honeywell site.

.. . . except that Honeywell have taken down that very interesting reference
document, and you you now get re-directed their home page - which isn't very
useful!

Anyone know of an alternative source of these plan descriptions, which could
be linked to, instead of the 'dead' ones?
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored..
Messages sent to it may not be read for several weeks. PLEASE REPLY TO
NEWSGROUP!

Roger Mills wrote:
Just been looking at the CH Controls and Zoning section - which discusses
the various heating 'plans'. For each plan - Y-Plan, C-Plan, S-Plan, W-Plan
etc., there is a link to a description on the Honeywell site.

. . . except that Honeywell have taken down that very interesting reference
document, and you you now get re-directed their home page - which isn't very
useful!

I came across this last week, and was going to post a similar request
until I had a closer look at the redirect page that Honeywell are
serving to bounce the dead references back to the home page.

It sez ...
"Please wait! You are currently being diverted to our new website at
www.honeywelluk.com Please update your bookmarks"

However, if you place your cursor over the link (as if you would if the
redirect failed), you will notice it really links to a spammers revenue
raising parking page.

I've spoken to someone at honeywell about this - seems they have yet to
fix it (or my report of the issue went over their heads).

:-(

--
Adrian C

"Roger Mills" wrote in message
...
Just been looking at the CH Controls and Zoning section - which discusses
the various heating 'plans'. For each plan - Y-Plan, C-Plan, S-Plan,
W-Plan etc., there is a link to a description on the Honeywell site.

. . . except that Honeywell have taken down that very interesting
reference document, and you you now get re-directed their home page -
which isn't very useful!

Anyone know of an alternative source of these plan descriptions, which
could be linked to, instead of the 'dead' ones?
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored..
Messages sent to it may not be read for several weeks. PLEASE REPLY TO
NEWSGROUP!

Salus do good clear diagrams

http://www.salus-tech.com/manuals/S%...%7D CP222.pdf

and

http://www.salus-tech.com/manuals/Y%...% 20CP322.pdf

and together

http://www.salus-tech.com/manuals/TC...NG%20front.pdf


Adam

PS Roger you remember the Y Plan timer overrun problem you helped me with a
few weks ago? I had to set the overrun timer to 7 minutes in the end. WB
technical informed me that the 24Ri overrun is just a 3 minute timer
overrun. I may have more questions about that install if you are still
prepared to help.

In an earlier contribution to this discussion,
ARWadsworth wrote:

"Roger Mills" wrote in message
...
Just been looking at the CH Controls and Zoning section - which
discusses the various heating 'plans'. For each plan - Y-Plan,
C-Plan, S-Plan, W-Plan etc., there is a link to a description on the
Honeywell site. . . . except that Honeywell have taken down that very
interesting
reference document, and you you now get re-directed their home page -
which isn't very useful!

Anyone know of an alternative source of these plan descriptions,
which could be linked to, instead of the 'dead' ones?

Salus do good clear diagrams

http://www.salus-tech.com/manuals/S%...%7D CP222.pdf

and

http://www.salus-tech.com/manuals/Y%...% 20CP322.pdf

and together

http://www.salus-tech.com/manuals/TC...NG%20front.pdf


Yes, they'd probably do for S-Plan and Y-Plan even though they're not quite
the same as the original Honeywell ones. Interestingly the combined one
which you cite uses 16-way wiring centres, whereas the individual ones use
10-way boxes, more like Honeywell.

However, neither covers C-Plan or W-Plan.


PS Roger you remember the Y Plan timer overrun problem you helped me
with a few weks ago? I had to set the overrun timer to 7 minutes in
the end. WB technical informed me that the 24Ri overrun is just a 3
minute timer overrun. I may have more questions about that install if
you are still prepared to help.

I'll do my best! What led you to the 7 minute setting - what actually
happened if you set it to less?
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

"Roger Mills" wrote in message
...
In an earlier contribution to this discussion,
ARWadsworth wrote:

"Roger Mills" wrote in message
...
Just been looking at the CH Controls and Zoning section - which
discusses the various heating 'plans'. For each plan - Y-Plan,
C-Plan, S-Plan, W-Plan etc., there is a link to a description on the
Honeywell site. . . . except that Honeywell have taken down that very
interesting
reference document, and you you now get re-directed their home page -
which isn't very useful!

Anyone know of an alternative source of these plan descriptions,
which could be linked to, instead of the 'dead' ones?

Salus do good clear diagrams

http://www.salus-tech.com/manuals/S%...%7D CP222.pdf

and

http://www.salus-tech.com/manuals/Y%...% 20CP322.pdf

and together

http://www.salus-tech.com/manuals/TC...NG%20front.pdf


Yes, they'd probably do for S-Plan and Y-Plan even though they're not
quite the same as the original Honeywell ones. Interestingly the combined
one which you cite uses 16-way wiring centres, whereas the individual ones
use 10-way boxes, more like Honeywell.

However, neither covers C-Plan or W-Plan.


PS Roger you remember the Y Plan timer overrun problem you helped me
with a few weks ago? I had to set the overrun timer to 7 minutes in
the end. WB technical informed me that the 24Ri overrun is just a 3
minute timer overrun. I may have more questions about that install if
you are still prepared to help.

I'll do my best! What led you to the 7 minute setting - what actually
happened if you set it to less?
--
Cheers,
Roger


The original Honeywell pictures are available

S plan

http://content.honeywell.com/uk/homes/Schemes/s1.jpg

Y plan

http://content.honeywell.com/uk/homes/Schemes/y1.jpg

C Plan

http://content.honeywell.com/uk/homes/Schemes/c1.jpg

W Plan

I cannot find it.



I have driven over 800 miles today and so I am a bit knackered.

But my quick reply is , when the pump stopped it seems that the water in the
system was so hot it tried to go up the expansion pipe to the tank in the
loft. Lots of banging noises and the vent pipe got very hot. If I kicked the
pump back on then the vent pipe went cold and the banging stopped.

I still suspect a plumbing problem somewhere. I can take pictures of the
plumbing if it helps.

In an earlier contribution to this discussion,
ARWadsworth wrote:



The original Honeywell pictures are available

S plan

http://content.honeywell.com/uk/homes/Schemes/s1.jpg

Y plan

http://content.honeywell.com/uk/homes/Schemes/y1.jpg

C Plan

http://content.honeywell.com/uk/homes/Schemes/c1.jpg

W Plan

I cannot find it.


Yes, those are the ones - well, the wiring diagrams anyway. The original
document also had a plumbing schematic for each plan.

I'm not sure how common W-Plan systems are these days. They use a simple
diverter valve rather than a mid-position valve, and can thus do HW *or* CH
but not both at the same time - usually with HW priority, so you get no CH
until the HW demand is satisfied. AIUI, W-plan was invented *before* Y-Plan,
and the mid-position valve used by Y-Plan was subsequently invented to
overcome the problem of having to wait for the DHW to get hot before having
any space heating. However, with modern fast-recovery cylinders, that is
less of a problem - and I've heard it suggested that W-Plan systems are
coming back. They're certainly simpler from a wiring point of view, and have
less failure modes than Y-Plan.



I have driven over 800 miles today and so I am a bit knackered.

But my quick reply is , when the pump stopped it seems that the water
in the system was so hot it tried to go up the expansion pipe to the
tank in the loft. Lots of banging noises and the vent pipe got very
hot. If I kicked the pump back on then the vent pipe went cold and
the banging stopped.
I still suspect a plumbing problem somewhere. I can take pictures of
the plumbing if it helps.

Pictures would probably help - plus a diagram showing the overall pipe
layout.

On the face of it, it sounds as if there isn't a clear unrestricted path
from the boiler to the vent pipe but, if so, it's curious that this is fixed
by running the pump - unless that simply causes the residual heat to be
dissipated somewhere else, which I suppose is possible.

If my system over-runs for an insufficient period, the boiler's over-heat
stat trips - but there's no drama such as banging and gurgling etc.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

"Roger Mills" wrote in message
...
In an earlier contribution to this discussion,
ARWadsworth wrote:



The original Honeywell pictures are available

S plan

http://content.honeywell.com/uk/homes/Schemes/s1.jpg

Y plan

http://content.honeywell.com/uk/homes/Schemes/y1.jpg

C Plan

http://content.honeywell.com/uk/homes/Schemes/c1.jpg

W Plan

I cannot find it.


Yes, those are the ones - well, the wiring diagrams anyway. The original
document also had a plumbing schematic for each plan.

Good point.

I'm not sure how common W-Plan systems are these days. They use a simple
diverter valve rather than a mid-position valve, and can thus do HW *or*
CH but not both at the same time - usually with HW priority, so you get no
CH until the HW demand is satisfied. AIUI, W-plan was invented *before*
Y-Plan, and the mid-position valve used by Y-Plan was subsequently
invented to overcome the problem of having to wait for the DHW to get hot
before having any space heating. However, with modern fast-recovery
cylinders, that is less of a problem - and I've heard it suggested that
W-Plan systems are coming back. They're certainly simpler from a wiring
point of view, and have less failure modes than Y-Plan.


I am sure that I have seen variations of the W plan for gravity HW using a 2
port valve!

I doubt W plans will make a comeback. A W plan cannot meet part L of the
building regs as it does not allow total independant control of the HW and
CH circuits.


I have driven over 800 miles today and so I am a bit knackered.

But my quick reply is , when the pump stopped it seems that the water
in the system was so hot it tried to go up the expansion pipe to the
tank in the loft. Lots of banging noises and the vent pipe got very
hot. If I kicked the pump back on then the vent pipe went cold and
the banging stopped.
I still suspect a plumbing problem somewhere. I can take pictures of
the plumbing if it helps.

Pictures would probably help - plus a diagram showing the overall pipe
layout.

On the face of it, it sounds as if there isn't a clear unrestricted path
from the boiler to the vent pipe but, if so, it's curious that this is
fixed by running the pump - unless that simply causes the residual heat to
be dissipated somewhere else, which I suppose is possible.

If my system over-runs for an insufficient period, the boiler's over-heat
stat trips - but there's no drama such as banging and gurgling etc.
--


I will ping you when I get some photos. The customer has not complained for
two weeks now so it seems to be working.

Adam

ARWadsworth wrote:

"Roger Mills" wrote in message
...
In an earlier contribution to this discussion,
ARWadsworth wrote:

"Roger Mills" wrote in message
...
Just been looking at the CH Controls and Zoning section - which
discusses the various heating 'plans'. For each plan - Y-Plan,
C-Plan, S-Plan, W-Plan etc., there is a link to a description on the
Honeywell site. . . . except that Honeywell have taken down that
very interesting
reference document, and you you now get re-directed their home page -
which isn't very useful!

Anyone know of an alternative source of these plan descriptions,
which could be linked to, instead of the 'dead' ones?

Salus do good clear diagrams

http://www.salus-tech.com/manuals/S%...%7D CP222.pdf


and

http://www.salus-tech.com/manuals/Y%...% 20CP322.pdf


and together

http://www.salus-tech.com/manuals/TC...NG%20front.pdf


Yes, they'd probably do for S-Plan and Y-Plan even though they're not
quite the same as the original Honeywell ones. Interestingly the
combined one which you cite uses 16-way wiring centres, whereas the
individual ones use 10-way boxes, more like Honeywell.

However, neither covers C-Plan or W-Plan.


PS Roger you remember the Y Plan timer overrun problem you helped me
with a few weks ago? I had to set the overrun timer to 7 minutes in
the end. WB technical informed me that the 24Ri overrun is just a 3
minute timer overrun. I may have more questions about that install if
you are still prepared to help.

I'll do my best! What led you to the 7 minute setting - what actually
happened if you set it to less?
--
Cheers,
Roger


The original Honeywell pictures are available

S plan

http://content.honeywell.com/uk/homes/Schemes/s1.jpg

Y plan

http://content.honeywell.com/uk/homes/Schemes/y1.jpg

C Plan

http://content.honeywell.com/uk/homes/Schemes/c1.jpg

W Plan

I cannot find it.


OK, I've redrawn these plans in Autocad. If someone wants to put them up
on the Wiki they're welcome. Please let me know what format/size you
want them and where to send them.

Here's a sample: -

http://tinypic.com/view.php?pic=oaaj3p&s=3

In an earlier contribution to this discussion,
Dave Osborne wrote:


OK, I've redrawn these plans in Autocad. If someone wants to put them
up on the Wiki they're welcome. Please let me know what format/size
you want them and where to send them.

Here's a sample: -

http://tinypic.com/view.php?pic=oaaj3p&s=3

Excellent!

I'm not too sure about showing the internals of the mid-position valve
unless you're going to show *all* the gory details - Honeywell just show the
wires disappearing into the case. Having said that, they *do* show the
internal motor and auxilliary contacts on the 2-port valves used in S-Plan
systems.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!