Danfoss Randall 102

[Sickofitall]

Hi. I have an old back boiler system that is controlled by a danfoss randall 102.

The Randall 102 has failed and I want to replace it.

Can you please advise what the best replacement timer would be and where to connect the wires.

At present there is a live feed to the timer which goes to terminal 3 and is then linked to terminal 6. The neutral goes to terminal 5 and earth to terminal 4 There are two other wires connected. The neutrals and earths are connected to 5 and 4. And the live wire from one cable goes to terminal 1 and the live from the other goes to terminal 2. ( I hope this makes sense)

I just want to connect up a simple easy to use replament timer for this

Can anyone please advise?

Thanks a lot for your help

Steve

 

[Sickofitall]

This is the current wire to the danfoss Randall 102.

 

[CBW]

It depends if it’s setup as Gravity and pumped heating or fully pumped, if the latter, then almost any would be suitable. Can you confirm setup or show a photo of cylinder cupboard?

 

[aheyes]

Did you have any success with this Steve? I'm trying to do a similar job to replace an old Randall 102 with a modern smart thermostat.