Dorma ES 110-4-30 매뉴얼 - 페이지 2
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7. FAIL-SAFE
The strike is locked when energized. This feature should
be used for applications that require automatic unlocking
in case of power failure.
All fail-safe strikes are operated by DC solenoid and are
silent operation.
CAUTION: Fail-safe is permitted with the UL Fire Door accessory label.
8. ASTRAGAL
A lock guard, designed to prevent tampering with the
strike keeper and the latch bolt.
TROUBLE SHOOTING
Strike does not operate when energized.
Strike operates intermittently.
Solenoid overheating or burned out.
Buzzing solenoid (when not specified).
Strike is not re-locking or is not unlocking.
Improper indication.
(LCM, LBM or LCBM)
Solenoid plunger binding in solenoid.
(Plunger will not extend or retract.)
MAINTENANCE AND LUBRICATION
Under normal usage the 110 electric strike should be cleaned and lubricated once a year to maintain its reliability. In applications with
high usage or dirty conditions more frequent service may be necessary. Lubrication points are identified in illustration. When servicing a
110, inspect the internal parts for excess wear or breakage and lubricate per the instructions. Lubricate with lithium grease. Never
lubricate any strike with oil, such lubrication collects dirt and forms an abrasive and sticky compound that may affect the function
of the strike.
Problem
Check for proper voltage being supplied to the strike.
Check all wiring.
Check the coil resistance of the solenoid and compare it to the chart
located on the wiring diagram, to ensure the correct solenoid is being
used.
Check for loose wire connection.
Check for proper voltage being supplied to the strike.
If a rectifier is attached to the strike, check to ensure the proper
rectifier is being used. A tag on the rectifier identifies which strike
and voltages the rectifier operates.
Realign solenoid on AC strikes. Replace rectifier on DC strikes.
Check for proper alignment between strike keeper and bolt, realign
face plate if necessary.
The keeper may not be returning to the fully locked position. Check
the strike with the door open, if the strike re-locks check the
horizontal alignment between the strike keeper
and the latch bolt. There is a 3/16" horizontal adjustment between
the strike assembly and the face plate
(see installation instructions for adjustment).
If vertical alignment is off, reposition the face plate.
Check the locking cam spring to ensure it is moving the locking cam
into the locked position (non-fail-safe) or the unlocked positions
(fail-safe). Check the solenoid assembly to ensure the solenoid
plunger is moving freely.
Check wiring.
Check latch bolt for correct engagement with the switch tripper.
Check switch actuator arm, re-bend if necessary.
Check continuity of indication switches, common to normally open,
common to normally closed.
Realign solenoid.
Solution
08101631
INS NO.
05/09
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