3
5. Installation
• Ensure the mains supply is switched off and the circuit supply fuses
are removed or the circuit breaker turned off.
• An isolating switch should be installed to enable the power to be
switched ON & OFF for maintenance purposes and to activate the
manual/auto override function.
Diagram B
Diagram C
• Remove the mounting plate from the PIR by releasing one of the lugs
(left or right side) firmly grip with your hand, and slide in a downward
direction to release.
• Mark the position of the fitting holes using the mounting plate as a
template (See section 6. Mounting Installation Steps, for the different
ways of mounting the PIR). Drill out the mounting holes taking care to
avoid any joists, electrical cables or water/gas pipes that may be hidden
beneath the surface. Insert the rawl plugs into the holes.
