Chamberlain LIFTMASTER SL920 - Manual (Page 13)

13
Electrical
 Make sure that power is OFF
before making any electrical connections!
 Be sure that all wiring is employed
as required by local codes.
 The operator is provided with two
knockout holes on each side. Run 1/2" liquid
tight flexible conduit through one of the four
knockout holes and into the handy box where
the receptacle is located. An elbow fitting is
attached to the handy box and a straight
fitting is supplied for the other end of the
flexible conduit. Run three 12 gauge wires
through the flexible conduit and into the
handy box. There should be a black or other
colored wire for hot, a white wire for neutral,
and a green wire for earth ground.
 Connect the three 12 gauge wires to
the 115 Volt receptacle.
 Connect the black (hot) wire to the
brass screw.
 Connect the white (neutral) wire to
the silver screw.
 Connect the green (ground) wire to
the green grounding screw.
 When the wires have been connected
to the receptacle, insert the receptacle back
into the handy box. Secure the receptacle to
the handy box with two screws. Apply the
receptacle cover to the receptacle and secure
it with a screw. The power cord may now be
plugged into the receptacle.
 To reduce the risk of electric shock,
this equipment has a grounding type plug that
has a third (grounding) pin. This plug will only
fit into a grounding type outlet. Do not change
the plug in any way.
CONDUIT ROUTING
STANDARD 115 VOLT HOOK-UP
3
1
2