Hello I have a secure 302 channel wireless receiver connected to my boiler it just fitted over the standard backplate when I removed the old programmer some years ago, it is paired with a wireless thermostat, I think I linked two connections together in the central heating wiring centre when I replaced the old wired thermostat but can't remember which ones, so everything work ok at the moment but I want to replace the thermostat and receiver with a Nest to control Heating And HW
This is from the receiver manual -
Secure 302 wiring
302.png (18.46 KiB) Viewed 262 times
This is what I have when I remove the old receiver above
old wiring
So if I move the L N Wires to the correct L N on the heatlink and link L to 2 and 5
No 4 above is Heating and No3 HW
So yellow no3 above goes to no6 and blue no4 goes to no3 is this correct?
nest
nest.jpg (33.29 KiB) Viewed 262 times
I want the Nest to connect via Wireless to the heatlink is there anything I am missing here
Your diagram is correct, however I think you will find the terminals in the nest thermostat are too small to wire direct. [attachment=0]upper_wiring_centre_plus_heatlink.jpg[/attachment] when I did it I put a wiring centre next to Nest so I had some where to sort out wires.
Attachments
upper_wiring_centre_plus_heatlink.jpg (140.37 KiB) Viewed 220 times
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!