Chamberlain LM21XP MAINTENANCE REQUIREMENTS, ENCLOSURE MOUNTED LEDS STATUS INDICATORS, Description, Action Required

M A I N T E N A N C E

MAINTENANCE REQUIREMENTS

The release device has no scheduled maintenance requirements. The unit has been designed and tested for use in dry, indoor locations. Testing of the unit at least once every 90 days is recommended, but test intervals shall ultimately be subject to criteria established by the Authority Having Jurisdiction (AHJ).

WARNING

To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution, disconnect ALL power BEFORE performing ANY maintenance.

FIGURE 1

Mechanical

Reset Plunger

Front of Release Device

	End Link
	Electronic
Bottom of Release Device	Reset Button
	Test Button
	Red LED (Line Power Present)
	Yellow LED
	(Close Door Detection
	Release Disabled)

ENCLOSURE MOUNTED LEDS STATUS INDICATORS

LED Label	LED Color	Description	Action Required
Disable	Yellow	The Yellow LED will light when the door reaches the close	If the LED does not light when the door reaches the close
		limit and activates a proximity switch attached to terminal	limit and activates the proximity switch, then check that
		positions 7 and 8 on the release device. This	the proximity switch has been activated and that the
		configuration results in the device not releasing the	switch is set to normally open (N.O.). Check to make
		fusible link assembly in alarm or power loss situations	certain that the switch is attached to terminal positions 7
		and should only be used when the fire door is kept in a	and 8 on the release device.
		constant closed position.
Power	Red	If the Red LED is lit, then the line power is connected and	If the LED does not light when power is applied, check
		switched “on.”	that power is connected as described in the installation
			manual electrical connections.

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