wiring thermostat

  1. A

    Help on wiring - Replacing Drayton RTS2 with ESRPT4 from ESIControls

    All, Your help would be really appreciated!! Am trying to replace my Drayton RTS2 with an ESRPT4 but cannot work out which wire goes where! I've taken a picture of existing wiring and the useless manual from the new thermostat. If someone could just tell me in lamen terms I.e. Red wire to Pin 1...