I went to a job where the the 3 port valve is seized, replacement for this is £200 at plumbcenter. I thought I would replace it with a Honeywell 3 port but the wire colours differ.
The Drayton TA/M4 has blue, yellow, white, black and earth.
Honeywell has Blue, orange, white, grey and earth.
Is the orange the same as the yellow and the grey for for the black
Can't find any wiring detail on the web any help would be grateful
The Drayton TA/M4 has blue, yellow, white, black and earth.
Honeywell has Blue, orange, white, grey and earth.
Is the orange the same as the yellow and the grey for for the black
Can't find any wiring detail on the web any help would be grateful