Timer switch and thermostat wiring help?

[jacsea]

I have an old Baxi Bermuda 552 backboiler that just powers a one pipe radiator system and a fire. I have a Randall 103 timer switch and a Satchwell TLX2259 thermostat. The problem is there is no wiring at all going to or coming from either thermostat or timer.It has all been removed The only visible wire is a length of 3 core 3amp cable coming from the boiler which i guess is for the spark generator and a length of wire coming from the pump? There is also a switched fuse spur near the timer which i assume is where once the power source came from.I can access all parts quite easily. Can anybody advise on what wires need to go where. Do i need connector blocks etc.? Any advise or simple wiring diagram would be appreciated thanks.

 

[OwainDIYer]

No hot water? With installations of this age the hot water might be gravity or pump.

If you have no or gravity hot water then you'd wire C-Plan

http://wiki.diyfaq.org.uk/index.php?title=Central_Heating_Controls_and_Zoning#Gravity_DHW:_C-Plan

 

[jacsea]

Thanks for your reply. Hot water is from a separate water heater. Yes an old system as you say.
Just the heating i need to get wired up.
Thanks again

 

[EFLImpudence]

See page 6, diagram 1) Control of heating function only.

http://danfoss-randall.co.uk/PCMPDF/7479v04_2.pdf

The load on the diagram will be the pump.
The supply - L N E - must come from a double-pole switched, fused- connection-unit.

Connect the cable to the boiler to the load side of the SFCU (or terminals 4,5, & 6 of the timer if it is more conveniently placed)

so that everything can be isolated at one point.

 

[jacsea]

Thats great thanks. thats just what i was looking for.

all makes sense now.

couldnt see the wood for the trees as they say!

Posted the same question on another area of this site and they thought i was winding them up? not sure why. never mind

Thanks again for your help