Nest 2nd gen installation advice

[macka09]

Hi all.

I've just received my nest and I'm installing it now.

Originally I've got a wireless receiver next to the boiler and a battery operated wireless stat. Now I assume I just take my live and neutral from the receiver and put them to the nest and the common and call wires from there to the nest also? But that then leaves me with 2 earth wires from the spur and the boiler?

Any help you lot can offer would be great thanks.

 

[macka09]

That's what is existing if that helps.

 

[ShaunCorbs]

just join the two earths together with a choc bloc and 1 and 3 are you common and sl/ heat call

is nest low or normal voltage switching if low you will need to check how its wired to boiler (dont put 240v through low side on nest)

 

[macka09]

Well it should be normal voltage I'm unsure to be fair. The nest itself will be plugged in so I won't be using the low voltage side.

 

[ShaunCorbs]

Well it should be normal voltage I'm unsure to be fair. The nest itself will be plugged in so I won't be using the low voltage side.

you sure it hasnt got an earth connection ? thats strange most have these days

 

[macka09]

 

[macka09]

T1 looks like it's should be earth to me but those ports are for connection to stat?

 

[ShaunCorbs]

no eath then as plastic

2 for common
3 for call / sl

 

[macka09]

So I can just join the 2 earths from boiler and spur?

 

[ShaunCorbs]

So I can just join the 2 earths from boiler and spur?

yea just connect together and leave if leaving/ installing nest there,

you mounting the nest connections where room stat used to be?

 

[macka09]

No as the old stat wasn't a wired one. So it will be plugged in. I wired it up earlier as mentioned above but the Nest couldn't communicate with the receiver?

 

[ShaunCorbs]

No as the old stat wasn't a wired one. So it will be plugged in. I wired it up earlier as mentioned above but the Nest couldn't communicate with the receiver?

did you hard wire from the nest to the receiver or wireless ?

 

[macka09]

Wireless

 

[macka09]

So I wired up the receiver to the boiler and plugged in the nest after setup it said it couldn't communicate.

 

[ShaunCorbs]

So I wired up the receiver to the boiler and plugged in the nest after setup it said it couldn't communicate.

did you try moving the nest stat closer to receiver?

 

[macka09]

It was only a meter away. As it was getting cold in the house I decided to leave the old receiver and stat on and I'll try again tomorrow.

 

[macka09]

Why would port 1 be optional?

 

[macka09]

Oh forgot to mention. On the existing boiler there's an mt10 clock.

 

[Gasmk1]

the clock either needs to be set to constant or removed and the blanking plate put back in

 

[macka09]

Well guys I can't get these to pair up whatsoever. There like 3 inches apart as well. Any ideas?

 

[ShaunCorbs]

Well guys I can't get these to pair up whatsoever. There like 3 inches apart as well. Any ideas?

Is it, it can't pair to the receiver or can't pair to the Internet?

 

[macka09]

Can't pair to the receiver I've reset it back to factory settings as well?

 

[macka09]

I have removed the mechanical clock but it's set to on so in theory I can't see an issue I've got the heat link further from the boiler and I've even turned off the cordless house phone

 

[macka09]

When I check the tech data on the stat it says it's not connected to wifi but I can't access the settings again

 

[macka09]

On the phone for over an hour with nest and still no answers. They wanna send a pro. What to do eh.