>> ...having had a look at the DT90 instructions, it seems logical.
These are a bit confusing:
ensupport.getconnected.honeywellhome.com/s/article/How-do-I-wire-a-DT90E-thermostat?language=en_US
Item 3 includes several scenarios including controlling a cooling device. In practical terms I think mine is item b where T1 and T2 are live feed and switched live respectively; like a light. See also:
ensupport.getconnected.honeywellhome.com/s/article/How-do-I-wire-a-DT90E-thermostat?language=en_US
As long as the yellow wire is the switched live I think I'm OK.
Worst case is I fuse something.
Is there anything I should be doing with the no longer required earth and neutral other than carefully taping them up?
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