Swap ST699 to LP522 with Y plan
Swap ST699 to LP522 with Y plan
I am looking to swap out an old ST699 Honeywell programmer for Drayton LP522. Now I am confident with most electrics but have not done a boiler programmer before. I am attaching some images of new and old for general consumption.
Now to the wiring... Here is the current setup. With 5 wires coming in by way of a 3 core flex going to positions 3,6 and 7. Then a second cable bring the L and N. There are also connections being made within with unit (blue wire) from L to position 5 and position...
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by Smellypunks
This has been automatically posted in the DIYNot Forum on DIY Talk. The new DIY Forum
Swap ST699 to LP522 with Y plan
I am looking to swap out an old ST699 Honeywell programmer for Drayton LP522. Now I am confident with most electrics but have not done a boiler programmer before. I am attaching some images of new and old for general consumption.
Now to the wiring... Here is the current setup. With 5 wires coming in by way of a 3 core flex going to positions 3,6 and 7. Then a second cable bring the L and N. There are also connections being made within with unit (blue wire) from L to position 5 and position...
Read more
by Smellypunks
This has been automatically posted in the DIYNot Forum on DIY Talk. The new DIY Forum