3
4. Siting
• The TRT033N must be sited where it will not be influenced
by heat sources, for example above a radiator or a television or
a refrigerator/freezer or in direct sunlight or subjected to draughts.
• The product requires air circulation, so do not position above
or below shelving or other wall mounted obstacles.
• It should be mounted approximately 1.5 metres above floor level.
5. Installation
5.1 Ensure the mains supply is switched off and the circuit supply fuses
are removed or the circuit breaker turned off.
5.2 Remove the wall plate from the unit, by undoing the retaining screws,
and pivoting the bottom of the unit outwards. The TRT033N body
can then be lifted off.
5.3 Mark the position of the mounting holes on the wall using the wall plate
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.
5.4 Pass the 230V 50Hz mains supply and load cables through the opening
of the wall plate. Allow sufficient excess cable to wire up the unit, but
not too much to make it difficult to close the unit to the wall plate.
5.5 Fix the wall plate to the wall using the correct mounting screws for the
rawl plugs installed. The retaining screws which secure the unit to the
wall plate should be at the bottom.
5.6 Terminate the cables into the terminal block ensuring correct polarity
is observed and that all bare conductors are sleeved (See section 6.
Connection Diagram). Make sure that the curved washer grips
the conductor.
5.7 To insert batteries into the unit, first lower hinged flip down cover
and carefully lever the battery holder cover off. Insert the 2x AA
batteries supplied into the battery holder maintaining the correct polarity,
as shown in the base of the battery holder. Re-position the battery holder
cover and click into place.
