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Connecting Honeywell DT90E wired thermostat

Postby Del9110 » Thu Jul 16, 2020 1:35 pm

Hi all, hoping someone can assist me connecting the correct wires from my 3 core and earth flex from old Honeywell thermostat to new DT90E, a photo is attached. In the wiring unit connector block, red goes to white (control head 3 port), black to black (boiler or controller) blue to most blues. Hope this makes sense? Thanks in advance
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7B4017B6-0ABF-4ECF-8D31-75BCD38E31AC.jpeg
Old Honeywell
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Postby Del9110 » Fri Jul 17, 2020 3:42 pm

All solved, thanks
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