Replace manual CH timer with digital programmer?

catterlen

I've looked at a few threads on this and am now having trouble finding a replacement.
We have a warm air CH boiler with a danfoss 103 manual 24 hr timer- the kind with 4 switches which switch on and off at set times. This is starting to lose time, and I was thinking we could replace with a digital timer that could vary with the weekdays.
I looked but can only find in certain places a direct replacement, like for like- some sites suggest danfoss Randall 103e (I think) but this seems not to be in stock anywhere....
Any suggestions if there are any suitable replacements?
Thanks

Ruski

http://www.amazon.co.uk/s/?ie=UTF8&keywords=danfoss+103e7

Simples

HTH

Russ

catterlen

Ah, a 7 at the end.... Now I feel stupid!
Cheers will check that out

albert_s

personally, I'd recommend something like a Grasslin QE1,
different fitment, but the connections are quite easy, and can be set up as 7 different days, or 7 days the same, or a 5/2, which is 5 weekdays the same and different at the weekend,

catterlen

albert_s wrote: »

personally, I'd recommend something like a Grasslin QE1,
different fitment, but the connections are quite easy, and can be set up as 7 different days, or 7 days the same, or a 5/2, which is 5 weekdays the same and different at the weekend,

Could I attach a wireless thermostat to this system then, so I could move the thermostat to somewhere more sensible like the living room?

Rubidium

catterlen wrote: »

Could I attach a wireless thermostat to this system then, so I could move the thermostat to somewhere more sensible like the living room?

Yes and if you fit a programmable wireless room stat e.g.

http://www.toolstation.com/shop/Heating/d230/Controllers/sd2732/Salus+RT500+Programmable+Digital+Room+Thermostat/p34423

your timeswitch becomes redundant. For simplicity you could just leave your existing timeswitch on the always ON mode and the programmable stat will take full control - a far better solution.

keith969

I replaced my old thermostat with a Honeywell Y9420H which is a 7 day programmer with a wireless digital room thermostat. Was easy to fit and simple to set. Not the cheapest but it's been completely reliable.

albert_s

Rubidium wrote: »

Yes and if you fit a programmable wireless room stat e.g.

http://www.toolstation.com/shop/Heating/d230/Controllers/sd2732/Salus+RT500+Programmable+Digital+Room+Thermostat/p34423

your timeswitch becomes redundant. For simplicity you could just leave your existing timeswitch on the always ON mode and the programmable stat will take full control - a far better solution.

I would recommend NEVER fitting a Salus,
nothing but trouble,
for wireless I'd go for a honeywell everytime,
simple to use, and reliable.

ispookie666

I hope I have understood your situation correctly.

Is it possible to put your programmer on continuous? ie., ON all the time - if yes - you could leave it on it.
Then, attach a wireless thermostat to your old thermostat(if you had one) - if not wire the relay for the wireless thermostat to the boiler.
The wiring are simple, but if in doubt its better to get a plumber/heating eng to sort it out.

This is what I did
- put my CH programmable timer to continuous(some Honeywell 7 day timer), then installed Honeywell CM907 (which is a wired 7 day programmable thermostat - brilliant, but wanted a wireless one a year later) to the old central heating thermostat.
Later replaced Honeywell CM907 to Netatmo - wifi thermostat. The relay is wired to the original location of the thermostat and the Netatmo thermostat is wireless and stays where ever I want it to be. I got a very good deal - sold my CM907 for £45 and bought the Netatmo for £75 (I believe its £145/- currently)

Rubidium

albert_s wrote: »

I would recommend NEVER fitting a Salus,
nothing but trouble,
for wireless I'd go for a honeywell everytime,
simple to use, and reliable.

That is your opinion but having fitted several with no problems after many years of service I have to disagree with your opinion.

Honeywell however have well known and documented display failure problems, hence not reliable!

albert_s

Rubidium wrote: »

That is your opinion but having fitted several with no problems after many years of service I have to disagree with your opinion.

Honeywell however have well known and documented display failure problems, hence not reliable!

isnt everything an opinion?
in 30 years I have had a LOT less problems with wired or wireless honeywell than any form of wired or wireless salus,,,,,
could you link to some actual facts of honeywell failures, and not just inept DIY installs of them?