Changing Honeywell Room Stat for a DT90E
Posted: Tue Nov 08, 2016 10:10 am
Quick question guys.
I have picked up a DT90E from my local screwfix with no instructions (last in stock...)
I currently have an old honeywell with 4 wires connected:
earth
black to no2
grey to no3
brown to no1
It has A, B and C
Can anyone shed some light here for me please.
Boiler is Vailant Eco
Cheers in advance peeps.
I have picked up a DT90E from my local screwfix with no instructions (last in stock...)
I currently have an old honeywell with 4 wires connected:
earth
black to no2
grey to no3
brown to no1
It has A, B and C
Can anyone shed some light here for me please.
Boiler is Vailant Eco
Cheers in advance peeps.