User manual LIFT-MASTER LM21-AFC

[. . . ] RELEASE DEVICES MADE IN THE U. S. A. ADVANCE FIRE CONTROL MODEL LM21-AFC MANUAL The LiftMaster Fire Control (LM21-AFC) Release Device/Control Panel is UL/CUL listed normally energized fail-safe device incorporating state of the art electronic control circuitry. The LM21-AFC is designed to be used with manual doors or motorized doors incorporating a reversing feature safety edge to create an automated door closing system. DO NOT install this unit on a motorized door without a safety edge. The LM21-AFC high performance control panel responds to emergency conditions generated by manual or automatic initiating devices. [. . . ] (Figure 6) The Open relay is used to open the door when the Auto-Open feature is enabled. Figure 6 - Operator Electrical Connections Remote test station. - (Optional) This optional device (part number SSRT) disables the cycle counter to allow testing of the door without a mechanical release after 3 cycles. Connect N/O remote test switch common to 21 and 22 as illustrated in Figure 7. Annunciator - (Optional) Connect annunciator (part number SSHS2475ADA) to 16 (+) & 20 (-) as illustrated in Figure 7. UL/CUL listed end-of-line resistor (2. 2k Ohm @ ¼ Watt) must be placed installed as illustrated. Multiple annunciators may be connected but the maximum output current of the devices must not exceed . 75A DC. (Supervised, current-limited circuit) 11. Additional dry contact relay is provided between 17 (Input) and 18 (N/C Output) and 19 (N/O Output) as illustrated in Figure 7. Maximum switched current is . 5A 125V AC, . 2A 110V DC, 1A 24V DC. Switching of this relay occurs immediately upon sensing an alarm. 9. Figure 7 - Electrical Connections for Annunciator and Test Plate 4 DIP-Switch Options The LM21-AFC has six DIP-switch selectable options. The options DIP-switch is located next to terminal block 5 as illustrated in Figure 2. Note: switches 7 and 8 are currently unused. Set all DIP-switch options before applying power to the system. The selection of positions is listed below. DIP Sw itch Position 1 Sw itch 'On' Motorized door. The LM21-AFC will attempt to close the door with the motor before releasing. If a motorized door is used, the LM21-AFC will attempt to close the door but will reverse if the safety edge is triggered. The LM21-AFC will stop the door on the obstruction when it is sensed the third time. The LM21-AFC will have a 20 second delay after an alarm is sensed before performing a door closure or drop. The LM21-AFC will drop the door after 6 minutes if close limit is not achieved by a motorized closure. Treat a loss of line power as an alarm, which leads to door closure, or drop. Open a motorized door automatically after alarm condition is cleared. [. . . ] After completing all tests, verify that door is in its normal condition (open or closed) and that all power required for normal operation is restored to unit and operator. The equipment is designed to operate with its primary power source applied. Figure 9 - Exterior View of Buttons, Mechanical Reset Plunger and Status LED's 6 Figure 10 - LED Description LM21-AFC LED Indicators (Figures 9 and 10) LED Mechanical Release Disabled (Figure 9) Battery Present (Figure 9) LED Color Description Yellow The LM21-AFC is in a state where it will not release the door. Action Required This is caused by being in close limit or by sensing an electric door operator. Check limit switch connections and motor operator control voltage connections (Figure 6). Green Batteries have been installed correctly and are charging or have been fully charged. [. . . ]