Chamberlain ‎C450 C450 Smart Garage Door Opener

User Manual - Page 33

For C450.

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33
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ ANDFOLLOW ALL WARNINGS AND INSTRUCTIONS.
2. ALWAYS keep remote controls out of reach of children.NEVER permitchildren to operate or
play with garage door control push buttons or remote controls.
3. ONLY activate garage door when it can be seen clearly,it is properly adjusted, and there are no
obstructions to door travel.
4. ALWAYS keep garage door in sight and awayfrom people and objects until completelyclosed.
NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
5. NO ONE SHOULD GO UNDER A STOPPED,PARTIALLY OPENED DOOR.
6. Ifpossible, use emergencyrelease handle to disengage trolley ONLY when garage door is
CLOSED. Use caution when using this release with the door open. Weak or broken springs or
unbalanced door could result in an open door falling rapidly and/or unexpectedly and increasing
the riskof SEVERE INJURY or DEATH.
7. NEVER use emergencyrelease handle unlessgarage doorway is clear of persons and
obstructions.
8. NEVER use handle to pull garage door open or closed.If rope knot becomesuntied, you could
fall.
9. After ANY adjustments are made, the safety reversal system MUST be tested.
10. Safety reversal system MUST be tested every month.Garage door MUST reverse on contact
with 1-1/2" (3.8 cm) high object(or a 2x4 laid flat) on the floor. Failure to adjustthe garage
door opener properly increases the risk of SEVERE INJURY or DEATH.
11. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 2). An improperly
balanced door mayNOT reverse when required and could result in SEVERE INJURY or
DEATH.
12. ALL repairs to cables,spring assemblies and other hardware, ALL of which are under
EXTREME tension, MUST be made by a trained door systems technician.
13. ALWAYS disconnectelectric power to garage door opener BEFORE making ANY repairs or
removing covers.
14. This operator system is equipped with an unattended operation feature. The door could move
unexpectedly. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
15. DO NOTinstall on a one-piece door if using devices or features providing unattended close.
Unattended devices and features are to be used ONLY with sectional doors.
16. SAVE THESE INSTRUCTIONS.
Operation
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