Drayton Wiser 1 - replacing existing wired thermostat

[Ret.phone2017]

I have purchased a Drayton Wiser 1 to replace my existing Drayton LP811 programmer with a wired thermostat. I have an Alpha CD25C combi boiler single system. I am confused by the installation instructions, since it initially just says:

"If there is an existing wired thermostat
connected via the wallplate, this must be
disconnected, i.e. remove the thermostat wires from the wallplate"

Later on it also says:

"a link must be inserted between the terminals where the thermostat common and call for heat wires are located in the wiring centre."

I really do not understand what this is referring to and the Wiser website suggested it was a simple task to just replace my existing. I uploaded a photo of my existing wallplate & thermostat.

Can I simply just remove the wired thermostat and pop on the new hub panel to the wallplate?

Thanks.

 

[picasso]

Remove the roomstat from the backplate and you will have a yellow wire (that is in 4 at the moment) left floating, move it to 3 and your done.

 

[Ret.phone2017]

Excellent! Just done that and it has worked thanks! Makes sense since the thermostat is effectively connecting the red and yellow when it gets cold! Cheers!

 

[luxliners]

Just to bring up a very old thread as just bought one of these like the OP.

If I am reading this correctly to isolate my thermostat to use the new system Drayton Wiser 1. All I need to do is unscrew the Yellow wire from the terminal 4 and screw into terminal 3 the N terminal?

 

[CountryFan]

Just to bring up a very old thread as just bought one of these like the OP.

If I am reading this correctly to isolate my thermostat to use the new system Drayton Wiser 1. All I need to do is unscrew the Yellow wire from the terminal 4 and screw into terminal 3 the N terminal?

Which end are you talking about? Thermostat or the programmer? I don't think you'd place any in the neutral, normally just neutral that goes in there

 

[luxliners]

Sorry as per the thread above the thermostat side. Reading the original reply above.

Remove the roomstat from the backplate and you will have a yellow wire (that is in 4 at the moment) left floating, move it to 3 and your done.

 

[CountryFan]

Sorry as per the thread above the thermostat side. Reading the original reply above.

Remove the roomstat from the backplate and you will have a yellow wire (that is in 4 at the moment) left floating, move it to 3 and your done.

No idea how that would work as there isn't a wire in terminal 4 on the thermostat. To bridge it out 1 and 3 together. Thermostat to remain on the wall. If you wanted it removing off the wall then needs to be done at the wiring center end