4
• During extreme weather conditions the PIR may exhibit
unusual behaviour if placed in sight of a window. Once
normal weather resumes, the PIR will carryout normal
operations.
5. Installtion
• 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 and OFF to the PIR. This allows the
unit to be easily switched OFF for maintenance purposes.
• Mark the position of the 68mm diameter hole cut out,
taking care to avoid ceiling joists and other obstructions
within the position the hole cut out will be placed.
• Drill a pilot hole to take the centre shaft of the hole cutter.
• Use the hole cutter to cut the required hole.
• Pass the 230V 50Hz mains supply and load cables through
the hole and prepare for termination
