Changing from Honeywell t6360B to Drayton SCR

[redmerc]

Hi All

I think this should be a pretty simple one... My honewell thermostat is wired to my oil boiler by 3 wires, live (brown), neutral (blue) and switched live (yellow+green, whoever fitted this used earth and did not mark it) as per photo.

The new Drayton thermostat wiring diagram is also shown (at top of photo) - it has live,marked as L, Neutral marked as N and common. Am i right in thinking that i wire the Drayton with Live (brown) to Common, neutral (blue) to N, and switched live(yellow+green) to L?

Many Thanks

 

[CBW]

Scratch that. Is it an oil combi boiler or zone valves?

 

[redmerc]

Hi. its an oil boiler that only serves my radiators, it does not do anything else - sorry i dont know what zone valves means!

thanks for your quick help btw

my heating systme has only 1 thermostat, and 4 rads + a towel rail. The towel rail will always be supplied hot water (no matter what the thermostat says) unless i manually turn it off using the valves on the rail itself

 

[CBW]

How do you get hot water?

 

[ianmcd]

Hi All

I think this should be a pretty simple one... My honewell thermostat is wired to my oil boiler by 3 wires, live (brown), neutral (blue) and switched live (yellow+green, whoever fitted this used earth and did not mark it) as per photo.

The new Drayton thermostat wiring diagram is also shown (at top of photo) - it has live,marked as L, Neutral marked as N and common. Am i right in thinking that i wire the Drayton with Live (brown) to Common, neutral (blue) to N, and switched live(yellow+green) to L?

Many Thanks

No that is wrong
N to N
L to L
3 to 3
and make a link from L to Com

 

[CBW]

No that is wrong
N to N
L to L
3 to 3
and make a link from L to Com

Thanks @ianmcd, I had originally put that, but then decided to edit as wasn’t sure if a zone valve was involved.

 

[ianmcd]

Thanks @ianmcd, I had originally put that, but then decided to edit as wasn’t sure if a zone valve was involved.

Most likely the oile boiler has a DHW internal store and so no Zone valves required

 

[redmerc]

Thank you guys so much. BTW my hot water comes from a separate electric immersion heater (i live on a houseboat)

All the best