Boiler Controls: Honeywell Equivalent to Randall 103

[uksparks]

Hi,

I am replacing an old Randall 103 boiler controller for a customer but not 100% which one I need, I did order the Honeywell ST9100C, but just need a bit of confirmation that it will do what I think.

Basically the one I have puts power to the boiler and power to the pump, and thats all the new one needs to do.

Does anyone know if this one will do that? I am sure it is the right model, just need a bit of guidance please.

Also on another note, my father in law has a Randall 3060 and wants a new one as its making a strange noise all the time, so again, does anyone have any ideas as to which Honeywell timer would replace it?

Thanks

 

[davesparks]

I can't say I've ever looked for one or even thought about it actually.

I only think about it when I'm at the job and it's just as quick to trace the wiring of the whole system. Plus it's always better to confirm that the programmer is actually at fault, just because it makes an odd noise and the heating misbehaves it doesn't necessarily mean it is the programmer

 

[Corbs]

Invalid URL?

randall 103

try now

 

[driverman]

Thanks dave, I'll take it apart and take some photos, I've got the manuals for them now so at least have a slight idea.

Don't Randalls do an electronic one still? Years ago, it was just a case of removing the actual programmer itself leaving the back plate on the wall and replacing with new programmer. Job done 2mins.

 

[uksparks]

Well i went round there last night and looked and its barely ticking and he said its not too bad... typical!

Anyway, I changed the Randall 103 over this morning for a Honeywell ST9100C, worked a treat, wasnt a 100% which was to connect it as theres no stat and the manual is aimed more towards a combi with a stat.

 

[Thit Sar Naing]

I'm a new user so teach me how to improve learning in electrical installation.

 

[Corbs]

Well i went round there last night and looked and its barely ticking and he said its not too bad... typical!

Anyway, I changed the Randall 103 over this morning for a Honeywell ST9100C, worked a treat, wasnt a 100% which was to connect it as theres no stat and the manual is aimed more towards a combi with a stat.

they normaly do the brass washers and fingers get sh*-*-* up to hell and stop the mech working nice and free