UM0010 Rev. M HUGHEY All Lights Are On. .40 5.7 Continuous Day, Twilight, Or Night Mode; All Lights. .40 5.8 Continuous Day, Twilight, Or Night Mode; One Light. .40 5.9 Single Low Intensity Flash In Night Operation Of One Light. .40 5.10 Frequent Fuse Blowing In The Owl. .41 5.11 Frequent Fuse Blowing In The Controller. .41 SECTION 6 - MAINTENANCE .41 6.1 SS125 Obstruction Warning Light (OWL) .41 6.2 SS122 Controller .42 6.3 SS124 Ambient Light Sensor.42 SECTION 7 - SPARE PARTS LIST .43 UM0010 Rev. M SECTION 1 - GENERAL INFORMATION 1.1 Scope This manual provides information about the installation, operation, and maintenance of the Type LS-158 High Intensity Obstruction Lighting System, StrobeGuard*, an FAA Type A system for use on structures such as chimneys and towers, developed and manufactured by Hughey one for each light in the system. Illuminate only when a light experiences failure. DS1 Indicator: Illuminates only when the Controller is in the DAY mode. DS2 Indicator: Illuminates only when the Controller is in the TWILIGHT mode. DS3 Indicator: Illuminates only when the Controller is in the NIGHT mode. DS4 Audio Alarm: Used only when optional Audio Fault Alarm is used (not shown). DS5 Indicator: LED that flashes with each sync pulse transmitted. F1 Main Power Line Fuse: Value varies with input line voltage, and is marked on the inside of the Controller cover. S1 On/Off Power Switch: Toggle switch that interrupts input power. S2 Mode Switch (Remote/Local): Two-pole, two-position toggle switch that permits manual (Local) selection of the intensity levels with switch S3 or automatic (Remote) operation through the SS124 Ambient Light Sensor. S3 Local Intensity Select Switch: Two-pole, three-position rotary switch that allows manual selection of three light intensities of the system (DAY/high, TWILIGHT/intermediate, and NIGHT/low) when switch S2 is in the Local position. S4 Sync Inhibit Switch: Momentary pushbutton grounds pin 8 of the Sync Timing and Driver Board, thus inhibiting the sync pulse from going to each light. S5 Reset Switch: Momentary pushbutton resets the Digital Monitor Lamps and Relay K3 when a fault has been repaired. TB1 Main Terminal Block: For power input and control functions to the system. TB2 Photocell Terminal Block: For Ambient Light Sensor connections. TB3 Alarm Terminal Block: For remote alarming. TB4 T1 Terminal Block: For internal logic transformer. UM0010 Rev. M 3.2.2.1 Additional Controllers If the number of lights in a single installation exceeds 32, or if the spacing of the lights is such that it is impractical to run wiring from a single point, more than one Controller may be used. 3.2.3 SS124 Ambient Light Sensor This sensor monitors outside ambient light. When the Controller is operated with Mode Switch S2 in the Remote position (normal operating position), this Sensor controls the automatic changing of the three light intensities. 3.3 Normal Operation After the system has been correctly wired according to the electrical installation instructions (Section 2), ensure that the Controller power is OFF. Ensure that the covers of the Obstruction Warning Lights (OWLs) are closed, and that the OWL light beams are aimed properly. Select the LOCAL operating Mode of Controller Switch S2. Set Switch S3 to the DAY position. Switch on Primary Power to OWLs. Random flashing should begin. Switch Controller Power Switch S1 to the ON position. After a delay of approximately 3 seconds, all lights should flash at the prescribed rate and sequence. The system flash rate is preset for 40 flashes per minute, and all lights flash simultaneously. The DAY status light should be on. After checking the LOCAL operation of the system in the DAY mode, Local Intensity Switch S3 should be set to the TWILIGHT position. After a short delay, the system should be flashing at the prescribed rate and the TWILIGHT status light should be on. Then, switch Local Intensity Switch S3 to the NIGHT position. After a short delay, the system should flash at the prescribed rate, and the NIGHT status light should be on. The Light-Emit