User manual LIFT-MASTER LM90 MODEL AB

[. . . ] Release device enclosure shall be mounted with minimum #10 size fastening screws or bolts for securing to structures other than masonry. Masonry applications shall utilize 1/4" or greater anchors or studs as required to ensure proper mounting strength. Release device and associated hardware [sash chain or 1/16 cable, eyebolts, fuse links (DO NOT install this unit without fuse links), turnbuckles] shall be installed as per door manufacturers recommendations (figure 3 typical installation configuration). Note should be taken that the end link direction of pull is perpendicular to the enclosure side. [. . . ] CAUTION: The automated signaling source and/or the motor operator shall contain logic capable of determining whether the door has fully closed upon activation. In absence of full closure, the motor control voltage shall be interrupted to release device allowing for release device initiated closure. CAUTION: DO NOT use this option on non-automated installations where door closings through the motor can only be initiated manually *DOOR EDGE (Lower limit/Proximity switch) This option interfaces to electrical contact type lower limit sensing devices and/or magnetic proximity type switches. If the electrical contact has toggled states from its N/O condition to a closed condition (TB1-5&6) indicating the door edge has made contact with desired down position, the release device logic will prevent the solenoid from energizing on alarm, thereby eliminating any damage which may result to the door from the release device attempting to close the already lowered door. TROUBLE RELAY (TB1-8, 9&10) The trouble relay toggles immediately upon a power loss or alarm condition and may be used for turning on signalling appliances (horns, strobes, etc. ) or other external signalling functions requiring a dry contact open or closure. With power applied TB1-9&10 are closed and toggle in alarm and power loss. Connect motor control sensing voltage (24vac) from motor controller transformer secondary to TB2 screws 1 & 2. Remove jumper & use TB1-6&7 for a N/C which opens in down limit. * Note: Electrical loop 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. Close hinged cover and secure screw on lid after all connections are made. DO NOT LEAVE COVER OPEN AFTER CONNECTIONS ARE MADE 4 "LM90" SERIES RELEASE DEVICE ELECTRICAL CHARACTERISTICS OPERATING VOLTAGES MODEL LM90-X-24DC . . . . . . . . . . . . . 120VAC +/- 10% CURRENT REQUIREMENTS MODELS A & B (X) LM90-X-24DC . . . . . . SUPERVISORY . 050A ALARM . 075A MAX * NOTE: Inrush current shall not exceed 3 times rated current on any model. MOTOR CONTROL SENSE - ALL MODELS INITIATING/DOOR INPUTS Input Voltage: 24V ac/dc typical +15% / -10% Input Current: Not to exceed . 004A CAUTION: All initiating devices shall be dry contact type only Maximum loop resistance: 100 Ohms Maximum current: Not to exceed . 002A Maximum voltage: 15Vdc FORM C OUTPUT (MAXIMUM CONTACT RATING) FUSE RATINGS- ALL FUSES 2A/15Vdc 30 Watt DC Resistive Load Only . 75 AMP @250V 2AG FAST ACTING TYPE "LM90" SERIES RELEASE DEVICE MECHANICAL CHARACTERISTICS MECHANICAL- LOAD RATING Support and release: 40LB. MAXIMUM DIMENSIONS 7 1/2" x 8 " x 4" (H x W x D) 5 ELECTRICAL CONNECTIONS - FIGURE 4 FOUR WIRE- INDEPENDENT ALARM & POWER LOSS DELAYS Refer to Section C - Electrical Connections pages 2&3 for complete wiring instructions (2) Initiating Device (Smoke detector, etc. ) (+) (3) Input power (-) End of line relay (8) Per U. L. 864 PC MOUNT (4) (1) Model B Only (Dotted area connections) Break wire for proper supervision. Do not loop wire around terminals (1)(4)(6) } Down Limit Detection TROUBLE RELAY (unit de-energized) MOTOR SENSE (control voltage sample) 24 V AC/DC PC MOUNT (+) (+) (-) CHASSIS MOUNT Chassis ground Refer to Section C - Electrical Connections pages 2&3 for complete wiring instructions pertaining to illustrations 4 and 4A (1) Dotted line indicates factory jumper which must be removed when connecting the N/C device. (7) All fuses 3/4 A @ 250V, 2AG Fast Acting (8) End of line relay as per U. L. 864 Installation of all wiring and related connecting hardware must be performed in accordance with the latest NFPA, U. L. , and N. E. C. In addition, all installations subject to Canadian standards shall be performed in accordance with the Canadian Electrical Code, Part I, with respect to wiring material type, wiring gauge related to power capacity requirements and circuit length and wiring methods. 6 FIGURE 4A - TWO WIRE/SINGLE DELAY Initiating Device (Smoke detector, etc. ) (+) Input power (-) (5) PC MOUNT CHASSIS MOUNT (+) (-) Chassis ground SECTION D. Step B refers to Model LM90-B-X with motor sense and door edge options. [. . . ] A) Motor control voltage not connected to TB2 B) Motor control is D. C. . Red LED is on, unit does not respond to manual test button, but works in alarm. A) Test button is not being depressed long enough. If N/O down limit is used, N/C loop (TB1-6&7) must have jumper installed. Call tech support. 5) Unit blows fuse when power is applied 9 MAINTENANCE REQUIREMENTS The release devices model LM90- A and LM90-B have no scheduled maintenance requirements. [. . . ]