4
Installation
1. Loosen the xing screw in the
base of the unit to release the
grey plastic Wiring Cover. Ensure
the protective tape over the
thumbwheel remains in place.
2. Holding the unit clockface
downwards, press rmly in the
centre of the wallplate and slide
it from the module as shown.
Installation
Pre-Selector wheel
Selector switch
Plug-in replacement
module
Wallplate/Terminal
block (not with FRU
units)
wallplate/
terminal
block
plug-in
module
NB. For FRU units - go straight to to point 4 on page 5
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