Timeguard EADS - Manual (Page 9)

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3.2. Pull Cord Unit
BS8300 (code of practice for the design of buildings and their
approaches to meet the needs of disabled people) recommends
that this should be sited on the ceiling such that for a toilet it
can be operated from the W.C. and an adjacent floor area. The
lower handle should be set 100mm above the floor (knot and
trim off any excess cord) and the upper handle should be set
between 800 and 1000mm above the floor (knot the cord at
required height).
Hold the unit backplate in position on the ceiling and mark
through the fixing holes on the unit backplate and drill and
plug (if necessary) holes suitable for four No 6 screws.
Bring the extra low voltage two core cable from the Control
Unit through the backplate and connect to the terminals
marked input (see diagram).
Bring a further extra low voltage two core cable through the
backplate and connect to the terminals marked output.
Fit the cover to the backplate and fix with the two screws
provided. Attach the two handles to the pull cord as described
at the beginning of this section.