Mechanical clock/stat?

[macka09]

Hi all

Am I right in thinking that if you have the stat turned down when the mechanical clock starts calling for heat, nothing will happen?

 

[Knappers]

Probably unless its the stat on your fridge?
Try it

 

[macka09]

Haha

 

[macka09]

That's what the lady has but she wants it on a timer but also for it not to go off in the night.

 

[macka09]

If it's set on the clock to come on at 8 and off at 10 whether the stat is still calling past ten will the boiler fire up ? I ent clued up with these at all.

 

[Ray Stafford]

No. It requires both conditions to be met:

Timing on, stat calling = boiler fires
Timing on, stat not calling = boiler doesn't fire
Timing off, stat calling = boiler doesn't fire
Timing off, stat not calling = boiler doesn't fire (obviously!)

Obviously subject to the range of over-ride, boost, advance etc buttons that allow the user to override the time programme.

 

[chris watkins]

Recommend that you replace the old mechanical room thermostat for a modern electronic type either one with night set back built-in or a programable type, then set the existing programer heating side to constant / 24hour & let it control the heating.

 

[Knappers]

Allot of new programmers will have a setback setting, so when heating goes off it actually just turns down to setback temp (16,17 whatever)
Could look at just a programable stat and leave existing timer on

 

[Knappers]

Like chris said

 

[Ray Stafford]

Recommend that you replace the old mechanical room thermostat for a modern electronic type either one with night set back built-in or a programable type, then set the existing programer heating side to constant / 24hour & let it control the heating.

Hi Chris

Could you come round my house and explain this to Mrs S?

Thanks

Ray

 

[chris watkins]

Hi Chris

Could you come round my house and explain this to Mrs S?

Thanks

Ray

Hi
Been round a couple of times Ray, think you were at work, if Mrs S is still not getting it I can only suggest that one of the younger heating engineers tries.



:redface:

 

[Knappers]

Lol
No comment

 

[zzzjim]

Hi Chris

................. explain this to Mrs S?

Ray

That could be a set back .. !