Honeywell ST6300A CH/HW Controller
Simon Edwards
We've just moved into a new house with the Honeywell ST6300A CH/HW
Controller. There are no instructions for this, but it seems as though
the timer settings cannot be set independently for the CH or HW, i.e.
they must both go on and off together - this seems a bit daft, as we
often want just one or the other on. Can anyone confirm this, or advise
as to how they may be set independently - for instance, we would like CH
in the morning, but don't want HW until evening (1 hour), when we would
also like CH, but for more than 1 hour.
All advice gratefully received.
Simon Edwards (simon....@swan.ac.uk)
Andrew Tait
> We've just moved into a new house with the Honeywell ST6300A CH/HW
> Controller. There are no instructions for this, but it seems as though
> the timer settings cannot be set independently for the CH or HW, i.e.
> they must both go on and off together - this seems a bit daft, as we
> often want just one or the other on. Can anyone confirm this, or advise
> as to how they may be set independently - for instance, we would like CH
> in the morning, but don't want HW until evening (1 hour), when we would
> also like CH, but for more than 1 hour.
You didn't specify the type of CH plumbing used, but if you've got an
indirect water tank, there would need to be a diverter in the system
somewhere (Mine is in the middle of a room under the floorboards, and
currently jammed on full open!) This would allow the timer to switch
from either HW or CH or both, or perhaps from HW only to HW+CH (mine
is like this) With no diverter, which is what my last house was like,
it's all or nothing.
I have no experience of that timer. Does it have separate settings at
all? Is it mechanical or digital? Do any wires run from it to
anything apart from the boiler and pump?
Totty <8^)
Simon Edwards
about CH) I'm not sure of the answer. I can say that the boiler is
downstairs in the kitchen and the HW tank is upstairs in the bathroom
(together with the controller). The controller is digital but I'm not sure
about the wiring,
Cheers,
Simon
Andrew Tait <ant...@blueyonder.co.uk> wrote in message
news:39C9EC09.MD-...@blueyonder.co.uk...
ian_c...@my-deja.com
Simon Edwards wrote:
>
> Hello All,
>
> It seems as though
> the timer settings cannot be set independently for the CH or HW, i.e.
> they must both go on and off together.
> We would like CH
> in the morning, but don't want HW until evening (1 hour), when we would
> also like CH, but for more than 1 hour.
>
> All advice gratefully received.
>
> Simon Edwards (simon....@swan.ac.uk)
Your description may have mislead people a little. The programmer allows
HW+CH to selected independently, but on a common time base. That is, if
both CH+HW are on 'Auto' (on/off/on/off) then they both come on and go
off together. In other words you can't achieve what you want.
Honeywell ST6400C is next up (and top of the ST6000 series). It does
allow independent setting of the two channels. Additionally you get 3
on/off periods (rather than the two you've got), and switchable (on
installation) 7-day or 5+2 programming (rather than the 24-hour
programming you currently have).
The base is a common item on the 6300 and 6400, so if you bought a new
programmer (approx. GBP 40) then it would be a simple swap over. If you
have a plumber/heating engineer mate he might take the old one off your
hands for a few quid.
HTH
IanC
Dave Plowman
> in the morning, but don't want HW until evening (1 hour), when we would
> also like CH, but for more than 1 hour.
If the central heating is in use, you might as well have the hot water on
as well. The amount of extra fuel this would waste is negligible. So set
the system for the times you need the heating on and let the hot water
take care of itself. In the summer, when you need hot water only, alter
the clock to give the required time just to heat the water.
--
* I almost had a psychic girlfriend but she left me before we met *
Dave Plowman dave....@argonet.co.uk London SW 12
RIP Acorn
geoff
>Hello All,
>
>We've just moved into a new house with the Honeywell ST6300A CH/HW
>the timer settings cannot be set independently for the CH or HW, i.e.
>as to how they may be set independently - for instance, we would like CH
>in the morning, but don't want HW until evening (1 hour), when we would
>also like CH, but for more than 1 hour.
>
--
geoff
geoff
<ant...@blueyonder.co.uk> writes
>Simon Edwards wrote the following about Honeywell ST6300A CH/HW Controller:
>
>> Controller. There are no instructions for this, but it seems as though
>> the timer settings cannot be set independently for the CH or HW, i.e.
>> they must both go on and off together - this seems a bit daft, as we
>> often want just one or the other on. Can anyone confirm this, or advise
>> as to how they may be set independently - for instance, we would like CH
>> in the morning, but don't want HW until evening (1 hour), when we would
>> also like CH, but for more than 1 hour.
>
>indirect water tank, there would need to be a diverter in the system
>somewhere (Mine is in the middle of a room under the floorboards, and
>currently jammed on full open!) This would allow the timer to switch
>from either HW or CH or both, or perhaps from HW only to HW+CH (mine
>is like this) With no diverter, which is what my last house was like,
>it's all or nothing.
>
>I have no experience of that timer. Does it have separate settings at
>all? Is it mechanical or digital? Do any wires run from it to
>anything apart from the boiler and pump?
>
>Totty <8^)
answer immediately as there are about half a dozen variations.
There should actually be instructions on the inside flap that covers the
controls for setting the time and programs, which is probably as
comprehensive as the manual anyway. Have you looked ?
--
geoff
ian_c...@my-deja.com
> Honeywell ST6400C is next up (and top of the ST6000 series). It does
> allow independent setting of the two channels. Additionally you get 3
> on/off periods (rather than the two you've got), and switchable (on
> installation) 7-day or 5+2 programming (rather than the 24-hour
> programming you currently have).
Its been pointed out to me that not all 6400s are created equal.
I was describing the unit I recently bought and installed.
AIUI, in the past the 6400 was a 7-day only model. At that time there
was also a 6450 model that did 5+2.
Sorry if I mislead anyone.
IanC
geoff
<simon....@swan.ac.uk> writes
>Only having moved into the house last week (and not knowing all that much
>about CH) I'm not sure of the answer. I can say that the boiler is
>downstairs in the kitchen and the HW tank is upstairs in the bathroom
>(together with the controller). The controller is digital but I'm not sure
>about the wiring,
>
>Cheers,
>
>Simon
>
>Andrew Tait <ant...@blueyonder.co.uk> wrote in message
>news:39C9EC09.MD-...@blueyonder.co.uk...
>Controller:
>>
>> > We've just moved into a new house with the Honeywell ST6300A CH/HW
>> > Controller. There are no instructions for this, but it seems as though
>> > the timer settings cannot be set independently for the CH or HW, i.e.
>> > they must both go on and off together - this seems a bit daft, as we
>> > often want just one or the other on. Can anyone confirm this, or advise
>> > as to how they may be set independently - for instance, we would like CH
>> > in the morning, but don't want HW until evening (1 hour), when we would
>> > also like CH, but for more than 1 hour.
>>
>> You didn't specify the type of CH plumbing used, but if you've got an
>> indirect water tank, there would need to be a diverter in the system
>> somewhere (Mine is in the middle of a room under the floorboards, and
>> currently jammed on full open!) This would allow the timer to switch
>> from either HW or CH or both, or perhaps from HW only to HW+CH (mine
>> is like this) With no diverter, which is what my last house was like,
>> it's all or nothing.
>>
>> I have no experience of that timer. Does it have separate settings at
>> all? Is it mechanical or digital? Do any wires run from it to
>> anything apart from the boiler and pump?
>>
>> Totty <8^)
>
>
it ?
--
geoff