RANDALL 103 HEATING CONTROLLER WIRING

[funky-monkey]

IM TRYING TO SWAP MY OLD BROKEN HEATING CONTROLLER TIMER, ITS AN OLD TWIST AND CLICK ONE, IVE GAT A COMBI BOILER AND THE HEATING IS CONTROLLED WITH THE ABOVE, IT IS A DAILY TIMER, IM REPLACING IT WITH A DIGISTAT RF 2: WIRELESS 24 HOUR PROGRAMMABLE THERMOSTAT

THE RANDAL UNIT HAS TERMINALS 123[4 which go,s to mains supply]5 and 6
there is 2 power cables leading from above, on the first cable,,yellow to 1, red to 3, green/yellow to 4, blue to 5,,,on cable 2,,green/yellow to 4, blue to 5 and brown to 6

on the unit im fitting it has terminals marked N L 1 2 3 4
any ideas on the wiring, i have gat a diagram of all the wiring units and there layout, its on one page

 

[delmel]

IM TRYING TO SWAP MY OLD BROKEN HEATING CONTROLLER TIMER, ITS AN OLD TWIST AND CLICK ONE, IVE GAT A COMBI BOILER AND THE HEATING IS CONTROLLED WITH THE ABOVE, IT IS A DAILY TIMER, IM REPLACING IT WITH A DIGISTAT RF 2: WIRELESS 24 HOUR PROGRAMMABLE THERMOSTAT

THE RANDAL UNIT HAS TERMINALS 123[4 which go,s to mains supply]5 and 6
there is 2 power cables leading from above, on the first cable,,yellow to 1, red to 3, green/yellow to 4, blue to 5,,,on cable 2,,green/yellow to 4, blue to 5 and brown to 6

on the unit im fitting it has terminals marked N L 1 2 3 4
any ideas on the wiring, i have gat a diagram of all the wiring units and there layout, its on one page

I may have a new one of these if interested

 

[Spark123]

According to Danfoss Randall, terminal 4 is earth, 5 & 6 are supply. The switch is made between terminals 1 & 3.
At the moment is seems you have a supply cable (cable 2) and the control cable (cable 1). Are there any links in the time switch? Can you post some photos? A picture of the instruction manual wiring instructions will also help.

 

[Steve3948]

I think the RF2 does not use terminal 4, so it's L, N, 1, 2, 3.

If used on a combi with it's own switched output then use 1 and 3 on the RF2.
It will also need a Live and Neutral that plays no part with 1 & 3.

If used on a boiler requiring a switched supply only, then link Live to 1 and switch return on 3 to boiler trigger.