Google nest heat link

[NickHynes]

Just bought a Google nest thermostat and heat link. I need a bit of support to see if I can install the heat link myself or get someone in.

The wiring to the old thermostat in the garage near the boiler only has four wires (N, L, HW ON, CH ON). I have another thermostat in the house which controls the timings and temperature (picture included).

My question is, how do I wire the nest heat link to this? Or I am I looking at the wrong thing?

I am thinking (L and N is straight forward into the N and L port) port 3 and port 6. But this seems far too easy which is why I am asking here.

 

[CBW]

You’re calling a programmer (acs lifestyle) a thermostat which isn’t good. Yes the heat link could go there and place the thermostat where existing one is using the wiring.

 

[NickHynes]

CBW, thank you for your quick reply (thanks for the terminology re programmer and thermostat). With regards to the ports, which ports would I use on the heat link for the wires?

 

[ianmcd]

you will have to make links between L&2&5 on the nest

 

[CBW]

L and N simple, 3 from acl to 6 on heat link, 4 from acl to 3 on Nest and links as per @ianmcd