Features:
1) To comply with IEE regulations, the metal front plate must be earthed. All
earth terminals provided must be connected to the protective earth
conductor.
2) To avoid front plate discoloration when products are to be installed on
plastered surfaces, it is essential that the plaster is thoroughly dry before
installation.
3) Where accelerated drying by heating has been used, installation should
be delayed until it is certain that the plaster has dried throughout its ful
depth.