Chamberlain HD420EVP Owner's Manual page 22

Installation
STEP 11 Wire the door control to the garage door opener
1. Run the white and red/white wire from the door control to the garage door opener. Attach the
wire to the wall and ceiling with the staple (not applicable for gang box or pre-wired installations).
Do not pierce the wire with the staple as this may cause a short or an open circuit.
2. Strip 7/16 inch (11 mm) of insulation from the end of the wire near the garage door opener.
3. Connect the wire to the red and white terminals on the garage door opener. If your garage is pre-
wired make sure you use the same wires that are connected to the door control. To insert or
release wires from the terminal, push in the tab with screwdriver tip.
1
Staple
3
HARDWARE
Insulated Staple
(Not Shown)
2
7/16" (11 mm)
STEP 12 Attach the warning labels
1. Attach the entrapment warning label on the wall near the door control with tacks or staples.
2. Attach the manual release/safety reverse test label in a visible location on the inside of the
garage door.
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