User manual LIFT-MASTER LM21XPBB

[. . . ] 845 Larch Avenue Elmhurst, Illinois 60126-1196 www. liftmaster. com OWNER'S MANUAL MODELS LM21XPBB LM21XPBBVB EXTENDED PERFORMANCE RELEASE DEVICE TABLE OF CONTENTS INTRODUCTION General Description . . 3 WARNING Mechanical INSTALLATION WARNING CAUTION 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. [. . . ] This option only works as long as power is available to unit. Fail-safe operation is maintained under all operating conditions, and if power is not available to the unit, the fusible link assembly will be released. This is a power-limited, unsupervised circuit. This proximity switch must be mounted in the same room as the release device. RELAY AND TROUBLE OUTPUTS OPTION Connect wiring from the Alarm Relay Outputs (#11 N/C or #13 N/O and #14 Common) to the appropriate inputs on the fire alarm control panel to provide a signal at the panel when the release device is in an alarm state. Connect wiring from the Trouble Relay Outputs (#14 N/C or #16 N/O and #15 Common) to the appropriate inputs on the fire alarm control panel to provide a signal at the panel that the release device is in a trouble state (Figure 9). If these features are desired, coordinate the interconnection between the Release Device and the Fire Alarm Control Panel with the fire alarm installer. ANNUNCIATOR OPTION To power one or two (maximum) horn/strobes or similar annunciators , connect wiring to terminals 9 and 10 (Figure 10). Route wires through the non-conductive sleeving (provided) covering any exposed bare wires. Maximum distance of wire run within conduit not to exceed 20' total This is a supervised, non power-limited circuit. NOTE: If installing two visual annunciators, they must be installed on opposite sides of wall. LM56A FIGURE 9 11 N/C Alarm Relay Output 12 Common Make all necessary connections to the Fire Alarm Panel as required by the project specifications and the Authority Having Jurisdiction 13 N/O Alarm Relay Output 14 N/C Trouble Output 15 Trouble Common 16 N/O Trouble Output FIGURE 10 NOTE: A maximum of two annunciators may be installed in this manner. Horn/Strobe 9 Horn/Strobe + + 10k Ohm @ 1/2 watt Supervisory Resistor (LMEOLRES-10) Non-conductive sleeve 10 Terminal Strip ­ ­ Horn/Strobe Annunciator #LMHS2475ADA WIRING OPTIONAL CONNECTIONS (cont'd) 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 4-position DIP Switch mounted on the circuit board, and the switch at position #3 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 11). DIP SWITCH SELECTION The release device will provide a factory default delay of 10 seconds (to minimize nuisance alarms) before releasing the fusible link chain upon alarm or power loss. A 4-position DIP Switch found on the PC board within the release device can be used to adjust the length of the delay to one of four preset delays. [. . . ] If not lit, refer to the Close Door Detection section of this manual for correct wiring instructions. If lit, indicates a trouble condition (a short) within the annunciator loop (emanating from terminal board positions 9 and 10), resulting from either incorrect wiring or incorrect placement of the end-of-line resistor. Refer to the Annunciator section of this manual for correct wiring instructions. If lit, indicates that one of the ancillary devices/loops (smoke detector, annunciator, etc. ) is not grounded properly, and a short to earth ground exists. Red (LED 5) Red (LED 4) Close Door Detection Annunciator Trouble Ground Fault Green (LED 2) Yellow (LED 9) Yellow (LED 3) 12 WARNING MAINTENANCE REQUIREMENTS MAINTENANCE WARNING WARNING The release device has no scheduled maintenance requirements. [. . . ]