Chamberlain H, Owner'S Manual

8

ENTRAPMENT PROTECTION ACCESSORIES
(OPTIONAL)

PHOTO EYES AND SENSING EDGES

Sensing devices provided for door industry type operators with an
isolated normally open (N.O.) dry contact output are compatible
with your operator. This includes pneumatic and electric edges,
and through beam and retro reflective photo eyes. If you would
like to order or receive more information on safety devices, please
contact your local Authorized Dealer.
If not pre-installed by the door manufacturer, mount the sensing
edge on the door according to the instructions provided with the
edge. The sensing edge may be electrically connected by either
coiled cord or take-up reel.

Important Notes:

a. Proceed with Limit Switch Adjustments described below before

making any sensing edge wiring connections to operator.

b. Electrician must hardwire the junction box to the operator

electrical box in accordance with local codes.

WIRING

For wiring of your sensing device to the operator, refer to the
wiring diagrams provided on pages 13 and 14. See field
connection terminals identified as Reversing Device. 

TAKE-UP REEL

Take-up reel should be installed 12" (30.48 cm) above the top of
the door.

COIL CORD

Connect operator end of coil cord to junction box (not provided)
fastened to the wall approximately halfway up the door opening.

A D J U S T M E N T

To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect electric power BEFORE manually
moving limit nuts.

ATTENTION

AVERTISSEMENT

AVERTISSEMENT

AVERTISSEMENT

WARNING

CAUTION

WARNING

WARNING

WARNING

PRECAUCIÓN

ADVERTENCIA

ADVERTENCIA

ADVERTENCIA

LIMIT SWITCH ADJUSTMENT

NOTE: 

Make sure the limit nuts are positioned between the limit

switches before proceeding with adjustments.

1. Depress retaining plate to allow nut to spin freely. After

adjustment, release plate and move nut back and forth to
ensure it is fully seated in slot.

2. To 

increase

door travel, spin nut 

away

from limit switch. To

decrease

door travel, spin limit nut 

toward

limit switch.

3. Adjust open limit nut so that door will stop in open position

with the bottom of the door even with top of door opening.

4. Repeat steps 1 and 2 for close cycle. Adjust close limit nut so

that the limit switch is engaged as door fully seats at the floor.

CLOSE OPEN 

I N S T A L L A T I O N

To reduce the risk of SEVERE INJURY or DEATH, ALWAYS install
reversing sensors when the 3-button control station is out of
sight of door or ANY other control (automatic or manual) is

used. Reversing devices are recommended for ALL installations.

ATTENTION

AVERTISSEMENT

AVERTISSEMENT

AVERTISSEMENT

WARNING

WARNING

CAUTION

WARNING

WARNING

PRECAUCIÓN

ADVERTENCIA

ADVERTENCIA

ADVERTENCIA

OPEN

Limit Switch

CLOSE

Limit Switch

SAFETY
(AUX. CLOSE)

Limit Switch