Replace old timer

[Jrussellorac]

hi.. looking for some help.. my parents have a simple heating system.. oil boiler, pump and mechanical time clock, in an outside boiler house,.. no thermostats, TRV’s etc.. I want to add a digital programmer, in the house, going outside is an issue for them now. I was recommended by my plumbing merchants a Danfoss set1e. Looking at it, i assume the old time clock has L/N in and L/N out to the boiler, timer acts as a switch, so turns live on and off as needed, to power boiler. Can I simply wire my new timer into the power supply cable .. so it now becomes the L/N in and L/N out controller to the boiler.. and if so, can anyone give me the correct terminals for wiring for the ‘load’ supply, thanks in advance

 

[ianmcd]

The set 1e only has 3Amp switching capability so might not be suitable for your oil boiler, what make and model is your oil boiler

 

[Jrussellorac]

Thanks ianmcd will find out later.. regards J

 

[Jrussellorac]

Boiler is a warm flow 57.. see image.. I opened the fused Spurs marked boiler and pump and see it’s a bit more complicated than I first thought .. can a wire from these be run back to the house.. or is it a major task.. couple of pics attached.. thanks

 

[Jrussellorac]

64751676-D8B5-4F7D-8CC2-81A31A5A4017

• Jrussellorac
• 9 May 2019

Boiler name plate

A9174367-CED8-4EE1-B414-1F26A959C78A

• Jrussellorac
• 9 May 2019

Pump right boiler left woring

A45F1C69-83E5-4BF9-876F-461806D3CBF8

• Jrussellorac
• 9 May 2019

Time clock with mains, boiler and pump fused spurs

 

[ianmcd]

As I suspected your boiler needs 5Amp fuse and the programmer that you chose has a maximum switching of 3 Amps so not suitable, I am a gas engineer and not oil but a few really good oil guys on here who will guide you in the right direction @oilboffin amongst others @Burnerman I have tagged them for you and they are the blokes to listen to

 

[Jrussellorac]

Thanks very much Ian.. much appreciated.. cheers John