User manual LIFT-MASTER LM21AFCB

[. . . ] 845 Larch Avenue Elmhurst, Illinois 60126-1196 www. liftmaster. com OWNER'S MANUAL MODELS LM21AFCB LM21AFCBVB ADVANCE FIRE CONTROL RELEASE DEVICE TABLE OF CONTENTS INTRODUCTION General Description . . 3 WARNING Mechanical WARNING INSTALLATION CAUTION WIRING Important Installation Warnings . . 4 CAUTION WARNING WARNING Electrical WARNING CAUTION When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. [. . . ] Switching of this relay occurs immediately upon sensing an alarm. VOICE BOARD OPTION The voice board provides one of two verbal warnings that the fire door is closing. Typically, depending on the length of the delay chosen on the release device, a warning tone will occur prior to the message, which is approximately 10 seconds in length (for example, a 20 second delay setting on the release device will result in a 10 second warning tone followed by the verbal warning message). There are two messages that may be selected: Message 1: Warning tone followed by the message, "Warning!An emergency condition exists and this fire door is about to close; please remove any obstructions from its path and stand clear. " Message 2: Warning tone followed by the message, "Warning!This fire door will close in 10 seconds. . . the fire door is now closing; please remove any obstructions from its path and stand clear. " The release device has an 8-position DIP Switch mounted on the circuit board, and the switch at position #8 permits selection of either message. In the "ON" position, Message 1 is activated; in the "OFF" position, Message 2 is activated. The voice board can drive up to two 70. 7V speakers (Model LM8SP) or speaker inputs to speaker strobes (Model LMPSTR2475ADA). A potentiometer (VR1) is mounted on the board and rotation counterclockwise increases the volume (clockwise to decrease volume) (Figure 8). WARNING CAUTION To prevent DAMAGE to the circuit board, auxiliary limit switches MUST be provided as dry contacts and may not be used in conjunction with the simultaneous switching of a motor control or ANY other voltage through the same contacts. Connections of this type will result in immediate damage to the release device. Figure 7 Annuciator Additional Form-C Dry Contact + DC NonConductive Sleeve ­ DC . 75A Maximum Current during Alarm (LMEOLRES-2-2) Figure 8 Volume Control CCW for Max Wire to Speaker Figure 9 LMRT Red Yellow Common N. O. 21 22 NOTE: LMRT key switch must be installed within a single gang junction box with a minimum 2" depth using appropriate 6-32 mounting screws and mounted on the same wall and within the same room as is the release device. All wire connections must be secured with appropriate wire nuts. 8 ADJUSTMENTS DIP SWITCH CONFIGURATION SETTING The release device has DIP switch selectable options. The options DIP switch is located next to terminal block 5. Set all DIP switch options before applying power to the system. The selection of positions is listed below. ON 1 2 3 4 5 6 7 8 Factory default setting of 10 seconds shown. DIP Switch 1 2 Switch "ON" Motorized door. The device will attempt to close the door with the motor before releasing. If a motorized door is used, the device will attempt to close the door but will reverse if the safety edge is triggered. The device will stop the door on the obstruction when it is sensed the third time. Switch "OFF" Manual door. The device will drop the door without attempting to close it with a motor. Drop after sensing an obstruction three times. The device will attempt to close the door but will reverse if the safety edge is triggered. The device will fully open the door after a third obstruction is sensed and then drop the door. 3 4 5 6 7 DIP switches 3 and 4 control the length of the delay, either 10, DIP switches 3 and 4 control the length of the delay, either 10, 20, 30 or 60 seconds depending on the switch settings. [. . . ] Check that the smoke detectors are connected in the circuit as illustrated. Press the "Reset" button to reset the detectors. Green Close Limit Green Mechanical Release Disabled Annunciator Open Detector Open Ground Fault Annunciator Short Line Power Present Detector Short Yellow Yellow Yellow Yellow Red Red Red If lit, the smoke detector circuit is short-circuited. 13 WARNING MAINTENANCE MAINTENANCE WARNING WARNING The release device has no scheduled maintenance requirements. The device has been designed and tested for use in dry, indoor locations. Testing of the device at least once every 90 days is recommended, but test intervals shall ultimately be subject to criteria established by the Authority Having Jurisdiction (AHJ). [. . . ]