Central Heating Controller Change

[parahandy]

Looking to replace a Honeywell T40 with a Sunvic Select 107XL.

The Honeywell has the following connections:

Earth - green/yellow wire
1 - Red wire
2 - Blue wire
3 - Yellow wire

The Sunvi has:

N
L
1 - Com
2 - Off
3 - On
4

Which colours go where on the new Sunvic?

Thanks

 

[breezer]

you need to find out what the red blue and yellow are connected to at the other end, anything else is just a guess

 

[parahandy]

Red = Live
Blue = Neutral

 

[bernardgreen]

//www.diynot.com/forums/viewtopic.php?p=268657

Very similar digital thermostat with only live and switched live and neutral not needed.

 

[parahandy]

Why is Neutral not required? The Stat is a mains powered one.

 

[plugwash]

I strongly suspect the correct wiring is

red to L and 1
blue to N
yellow to 3

 

[bernardgreen]

Why is Neutral not required? The Stat is a mains powered one.

OOPs I made a mistake.