NEST Thermostat integration to Potterton heater

I'm trying to install a Nest Thermostat + Heat Link to:

Potterton Suprima 60 HE - Condensing Central Heating Boiler
(Manual: http://www.potterton.co.uk/docs/101209_Potterton_Suprima_HE_Range_installer_guide.pdf, see page 30 for wiring)

Honeywell ST7100 Control Unit (http://www.honeywelluk.com/products/Discontinued-Products/ST7100/)

Honeywell Thermostat (1 zone only)

Wired in a C-Plan configuration - Gravity DHW (I think, as there's a water tank in the loft), for Hot Water and Pumped Central Heating System.

Has anyone had experience with this ?

 

You probably need to hook up the CH on/off/com to the Nest on/off/com. I had to do this just last week, though my boiler is a bit newer. Just make sure you make sure they are 240v, otherwise you'll need to hook that up to the nest.

 

Hi is there a wiring-centre/junction-box where all the components are interconnected? If there is, a photo of the innards would be useful.

Somewhere near that box would usually be the best place to mount the heatlink. See if you can identify the cable coming from the existing room thermostat.

 

Ok, I got it all working like a charm by not touching the Honeywell ST7100 programable timer, but by retrofitting the wall Thermostat instead.

I set the programmable timer to "Always On", then wired the "Nest Heat Link" in place of the thermostat.

 

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Please select a service and enter a location to continue...

Plumber / Gas Engineer Electrician Builder Decorator Builders' Merchant Plumbers' Merchant Tile Supplier Flooring Supplier
Start Search

Are you a trade or supplier? You can create your listing free at DIYnot Local