Search results

  1. O

    Wiring a Honeywell DT90 in place of a Potterton PRT100

    Hello folks Have a hopefully quick question. Am taking off an old Potterton PRT100, has 3 wires connected. No 3 terminal is black No 2 terminal is red No 1 terminal is sort of red (it's old and hard to tell) The sticker on inside of cover (which states PRT100ST, though the outside emboss just...
Back
Top