Wiring diagram for Potterton tank thermostat PTT2

[howieleem]

Hi
Does anyone have the wiring diagram for a Potterton Hot Water tank themostat, type PTT2.

 

[pannierstan]

Have you looked on the inside of the plastic cover?

 

[howieleem]

Yes, there is H, C, L, TL, N.

H is i believe switch live for Heat
C is switch live for Cold.
L is live in
N is Neutral in.

But what is TL

 

[baxpoti]

But what is TL

Signal from time control

Have you got a mid position valve, two zone valves or two pumps?

 

[pannierstan]

Yes, there is H, C, L, TL, N.

H is i believe switch live for Heat
C is switch live for Cold.
L is live in
N is Neutral in.

But what is TL

No thats Hyasinth, Crysatumum, lilly, tiger lilly and nosturtium.
Sorry for the spellings but I lost my Alan titchmarsh book

Stan

 

[pannierstan]

Sorry back to reality but do you have a multimeter.

Its very easy to check.

Stan

 

[howieleem]

Ok that makes sense, TL is the Time Control live in, but why is there another Live in on L, its not needed is it?

 

[baxpoti]

why is there another Live in on L, its not needed is it?

Just there to confuse you I expect, or is it!

 

[lor]

1, common
2, no
3,nc
4,permanent live ( for boost button)
5, n