4
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 and OFF for maintenance purposes and to activate the manual/auto
override function.
• Remove the top cover of the sensor by twisting the top cover fully
anti-clockwise to release. The top cover can now be removed from
the sensor body.
• Mark the position of the mounting holes using the sensor body as a template.
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.
• Terminate the 230V 50Hz mains supply and load cables into the terminal block
ensuring correct polarity is observed and that all bare conductors are sleeved
(see section 6. Connection Diagram).
