2
4. Installation
Suitable for use with single, dual, or twin element immersion heaters.
4.1 Ensure the mains supply is switched off and the circuit supply fuses
are removed or the circuit breaker turned off.
4.2 Remove the 2 fixing screws holding the front panel to the back box.
4.3 Decide which mounting holes you would like to use and select a suitable
cable entry point by drilling into the back box ensuring not damage or
infringe on any of the internal components.
4.4 Mark the position of the mounting holes on the wall using the back
box 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.
4.5 Pass the 230V 50Hz mains supply and load cables through the cable
entry point(s) on the back box.
4.6 Fix the back box to the wall using the correct mounting screws for the
rawl plugs installed.
4.7 Use the cable clamp in the back box to secure the cables.
4.8 Terminate the cables into the terminal block ensuring correct polarity
is observed and that all bare conductors are sleeved (See section 5.
Connection Diagram).
4.9 Ensure all terminals are secured and screw the front panel of the unit
to the back box using the 2 fixing screws previously removed.
Mechanical timer Economy light Boost period indication
Boost button (illuminated in use)
OFF/Timed switch