Best controls for a combi?

[TerryWaite]

What are the best controls to use in peoples opinions when fitting a new combi? time clock and room stat? programmable room stat?

I know you can have 24 hour, 5-day/2-day, 7-day etc, and its down to what the customer wants and can easily use, just wanted a general opinion

also when connecting a combi to existing controls, if the customer does not want to pay for controls upgrade, if the customer has say an old honeywell ST699 programmer (pictured below), could you use this to control the combi? bearing in mind how can you have time control of the hot water if it is instantaneous? or would the hot water part of the programmer be disconnected so it only controlled the heating?

hope you understand what im getting at, cos i dont

thanks

 

[Whn1]

Hot water part wouldn't have any controll over a combi,and you'd have to wire heating on to the switch in on the boiler.. Usually on a combi I'll fit the integral controls, much easier to use and install. Plug and play

 

[grahamgas]

Wireles programmable room stat, or if the customer is a bit of a technophobe, then integral clock, and wireless roomstat.

 

[Whn1]

The wireless stats are ok but whenever possible ill always try to hard wire a room stat.

 

[hammers4spanner]

Rf programmable stat normally for me ,started doing my own as got fed up with prices sparks were giving me.

 

[Whn1]

http://www.ukplumbersforums.co.uk/general-off-topic-chat/31753-what-glitch.html

 

[Billy Bob Bob]

using this is a lot cheaper than a seprate stat and built in clock i try to avoid RF where possible and get a wire to it

cm907

 

[Mike Jackson]

It all depends on the customer. Basic timeswitch and room stat ranging to full weather compensated system with optimised start. There's no point in fitting an all singing all dancin' control if the customer can't use it.

 

[TBServices]

I generally use the Honeywell too.


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[billybob150811]

rf controls do make life easy

 

[andyg0507]

whislt the threads going on what woulds peoples best controls be for a three zoned system incorparating uvhwc and ufh???

 

[Whn1]

Honeywell 7 day programmer for hw and ch with a Honeywell stat and separate ufh controls


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[andyg0507]

what model is that? ufh heating will be going on seperate stat/programmer anyway, just zone valve wired in.

 

[andyg0507]

dont know whether to go for honeywells evo home kit, saves loads of time wiring, but the looks not great

 

[mike_s]

I fit Worcesters and Mains. With Worcesters I use their plug in programmers and rf roomstats if I'm not wiring the boiler into existing controls.
With Mains I usually do the standard plug in mechanical clocks as their digital ones are way too complicated. Made by Grasslin, same as some of the Vaillant ones, stay away! Will take you an hour at least to figure it out.

For external programmers I usually do the Honeywell or Drayton Lifestyle as these are cheap, clear and simple.

I never do programmable roomstats, always seperate programmer and roomstat as with almost all of the ones I have seen the customer has complained that they're too complicated.

My favourite rf roomstat's are the Drayton (same as Worcesters) or Salus as they're only about £25 and very clear. I did a Siemens last week as they had no Salus in and I liked it, handy that it can just sit on a table or mantle with the built in rest. The basic Honeywell rf roomstats I have seen didn't even have a digital display and one was faulty.

I came across one of those Honeywell cm907 rf prog.roomstats last week, going back to the job this week so will have a play with it and consider installing them in future.

For For an S plan plus system I priced up I found Horstmann do a 3 channel programmer which looks good and planned to wire it to 2 seperate Salus roomstats (keeping cost down) and a cylinder stat of course.

 

[andyg0507]

the system in question will be a vaillant eco tec plus boiler with there 310 litre unvented cylinder, three heating zones, will be using vaillants vr65 wiring centre.

 

[mike_s]

the system in question will be a vaillant eco tec plus boiler with there 310 litre unvented cylinder, three heating zones, will be using vaillants vr65 wiring centre.

check my edited post just before yours. I would stay away from vaillant controls as their digital programmers and prog.roomstats have been complicated and awful. So my answer to your question would be the Horstmann 3 channel programmer and 2 Salus roomstats or maybe 2 of those Honeywell CM907's.

 

[Dannypipe]

On that system I would use three Honeywell CM927's and for the ho****er, a cheap and cheerful single channel wired programmer.

That way it's nice and easy to place each programmable stat where it's required.

It's not hard once you've got your head around it.

 

[Dannypipe]

Oh I should add. Most UFH systems will come with their own wiring centre, which includes a master unit, a slave unit (to power pump, open motorised valves) and stat. So it's best to use the manufacturers stats for the UFH part of the system.

 

[Dannypipe]

For For an S plan plus system I priced up I found Horstmann do a 3 channel programmer which looks good and planned to wire it to 2 seperate Salus roomstats (keeping cost down) and a cylinder stat of course.

I've fitted that Horstman 3 channel programmer on an S plan plus. Amazingly Honeywell don't seem to do a 3 channel programmer.

I personally think the Honeywell RF programmable stats are great. Very staight forward to programme.

 

[Backboiler]

Honeywell 7 day programmer for hw and ch with a Honeywell stat and separate ufh controls


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Man your in the cemetery

 

[Dannypipe]

Well that's friendly.

 

[Dannypipe]

I think he means he doesn't agree with your ideas on controls whn1, but hasn't put down anything of his own. I love it when people do that.

 

[Whn1]

Man your in the cemetery

Ohh I got ya now, hahaha I was just outside, it's where I knock about.


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[Backboiler]

You gotta think outside the box Dannypipe