Chamberlain HD920EV Garage Door Opener User Manual


 
27
1 Connect Power
To preventpossible SERIOUS INJURY or
DEATHfrom electrocution or fire:
Be sure power is NOTconnected to the
opener,and disconnectpower to circuit
BEFORE removing cover to establish
permanentwiring connection.
Garage door installation and wiring MUST
be in compliance with ALL local electrical
and building codes.
NEVER use an extension cord, 2-wire
adapter,or change plug in any wayto make
itfitoutlet.Be sure the opener isgrounded.
Toavoidinstallationdifficulties, donot activate the garage dooropenerat this time.
To reduce the riskofelectric shock,your garage door opener hasa grounding type plug with a third
grounding pin.Thisplug will only fitinto agrounding type outlet.Ifthe plug doesn’t fitinto your outlet,
contacta qualified electrician to install the proper outlet.
THERE ARE TWO OPTIONS FORCONNECTINGPOWER:
OPTION A
TYPICAL WIRING
Ground Tab
Green Ground
Screw
Ground Wire
Black
Wire
White Wire
PERMANENT WIRING
Wire Nuts
TYPICAL WIRING
1.1A Plug in the garage door opener into a grounded outlet.
1.2A DO NOT run garage door opener atthis time.
OPTION B
PERMANENT WIRING
If permanent wiring is required by yourlocalcode,referto the followingprocedure.Tomake a
permanent connectionthrough the 7/8 inchhole in the topof the motorunit (accordingtolocal
code):
1.1B Be sure power is NOTconnected to the opener,and disconnectpower to circuit.
1.2B Remove the garage door opener cover and set aside.
1.3B Remove the attached green ground terminal.
1.4B Cutblackand white wiresand strip away 1/2 inch (1 cm) ofinsulation,3 inch (7 5cm) before
spade terminals.
1.5B Remove the power cord fromopener.
1.6B Install aconduitor flexcable adapter to the 7/8 inch hole.
1.7B Run wires through conduit,cutto proper length and strip insulation.
1.8B Attach with wire nutsprovided.Attach the ground wire to the green ground screw.The opener
must be grounded.
1.9B Properly secure wire under plastictiesso thatwire does notcome in contactwith moving parts.
1.10B Reinstall the cover.DO NOTrun garage door opener atthis time.
Power