Current Thninking Unity DAU Installation And Maintenance Manual
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Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Introduction Voice Alarm (VA) systems are the quickest way to evacuate the public & staff from a building. Following fire detection, automated messages control the flow of people in stairwells and corridors allowing an orderly evacuation without panic. These messages are supplemented by spoken messages from the fire service or management suite confirming the validity and need to leave the building. This positive confirmation speeds evacuation and avoids the "
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Priorities The Unity DAU has six fixed priorities for the inputs as follows:- 1. Fire Microphone, this is the highest priority input on the system, designed to be used by the controlling officer. 2. Message Generator, this has three messages, all messages latch until reset from either the front panel recessed button, or from the cancel button on the fire microphone or by the RESET input from the Fire alarm input. Messages are prioritised in the following order: a. EVAC- Triggered from the fire alarm interface or from the fireman’s microphone, top priority message. b. ALE
UNITY DAU Installation & Maintenance Manual Indications and Controls Supply Section Indicators AC Indicates healthy AC mains available. DC Indicates the battery supply is available. Fault Either the AC supply or DC supply is unavailable, or a fuse has ruptured. Amplifier Section Indicators (both channels are identical and independent) Open
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Important Safety Information This Equipment must only be installed and maintained by suitably skilled and competent person. This Equipment is defined as Class 1 in EN60065 (Low Voltage Directive) and must be EARTHED. C AUTION INDOOR USE ONLY W ARNING SHOCK HAZARD- ISOLATE BEFORE OPENING W ARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE W ARNING THIS UNIT MUST BE EARTHED W ARNING NO USER SERVICABLE PARTS Each exchange unit requires a 3A spur, returning
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Unpacking the Unit Remove the Unity DAU from its packing, and check the contents against the following list: 1. Unity DAU control Unit. 2. Installation & maintenance manual (this document) 3. Unity User Guide & logbook. 4. Accessory pack with the following contents:- a. Spare Mains Fuse. b. Spare 5A blade battery Fuse. c. 2.5mm AF Alan Key. d. 4 off 18K 0.6W end of line Resistors. e. Crimped Battery Link Lead. f. Black jumper header to Enable Fire Microphone Monitoring. Using the HEX key supplied remove the front cover. Verify the following items are
UNITY DAU Installation & Maintenance Manual Preparation Remove the front panel plate containing the circuit boards, this has a connection to the mains transformer, which needs to be removed, Exercise static precautions to prevent damage to the electronics, store the front panel assembly safely until the exchange is mounted and cables have been attached. Before moun
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Mounting UNITY Before mounting the DAU on the wall it is advisable to remove the cable knockouts. Decide the best cable routes from the drawing below: Speaker Circuit A Speaker Circuit B Safety Earth Connection Mains IN Fire Interface Fire Mic Paging Mic Music The Unity DAU weighs 8KGs with batteries, so care should be taken to securely mount the unit on stud walling. Connecting UNITY To comply with EMC (Electro Magnetic Compati
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Mains Connection >3mm 3A Main Distribution Board >0.75mm 2 <2.5mm 2 UNITY Each Unity DAU requires a 3A spur, returning to a breaker clearly marked “Voice Alarm DO NOT TURN OFF”. If the units are distributed around a site it is essential all units are on the same mains phase, as they are classified TEN 230V, powering from different phases can mean a 440V potential can be present in a unit during a major fault incident. Batteries The Unity DAU requires 2 number 12V 3.2AH sealed lead acid batteries to provide backup power in the event of mains failure as defined in BS5839pt8 for 24 hours standby and 30 minutes
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Speaker Circuits Unity has two speaker Circuits, A & B. to fully comply with the requirements of EN60849 the speakers should be wired in an interleaved pattern, so if one circuit fails messages can still be heard in the areas covered (note it is accepted practice to only place one speaker in an office, as long as the connecting corridor is on the other circuit). Each output of UNITY can support 30W of speakers, this is typically five 6W speakers, ten 3W speakers or twenty 1.5W Speakers. 6W spe
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual It is desirable to have an impedance meter available (this measures the AC load that the UNITY DAU sees). The measurement on the impedance meter should not be lower than 330 Ohms at 1KHz. To work out the load from the impedance meter reading use the following equation: P=10,000/Z Where P is the power the amplifier sees, and Z is the reading in Ohms on the impedance meter. Note! Once the speaker lines are tested, record the results and the locat
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Fire Microphone Connections The Unity DAU is designed to work with the ALFM1 fire microphone, which is connected Pin for Pin as described below: Note in each block the connections are reversed, on the ALFM1 the Au- pin is on the top, on the Unity DAU the Au- pin is at the bottom of the block. The DAU is shipped as standard with the monitoring of the Fire Microphone DISABLED- to enable the monitoring fit the jumper supplied in the accessory pack as shown below: Lin
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Fire Alarm Interface The Unity DAU has been designed to connect to virtually any fire alarm system form simple conventional systems, to complex analogue addressable loop systems. The minimum fire alarm interface as defined by 5839pt8 is a monitored signal from the fire panel for evacuate, a de-latch signal on reset or silence (Reset on the DAU) and a signal from the Voice Alarm to the fire alarm control and indicating equipment signalling a fault. The interface monitoring is the responsibility
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Momentary Operation If no reset output is available, and you have permission from the authorities or consultant, the Unity DAU can be set for momentary operation, however this will not comply with the word of BS5839pt 8. In this mode the messages will sound when there is a positive voltage across the Alert or Evac terminals. Relay Operation If relays are used to operate the Unity DAU then the relay modules should be glanded to the Unity DAU case
UNITY DAU Installation & Maintenance Manual Page Input The paging input is an unmonitored input, at line level and the PTT line is connected to 5V to operate. Once operated paging will mute the music input, once paging is complete the music will return gently. The Ptt line goes to 5V when either the Fireman’s microphone or message generators are in use, t
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Music Input The music input is via a stereo pair of phono connectors, the Unity DAU is mono in operation, and the Left & Right signals are mixed together in the DAU. If a mono line signal is required, this can be provided to either input. Music is automatically muted when mains fails in line with BS5839pt8 to preserve battery life. The level of the paging microphone can be independently adjusted using the front panel recessed control marked “MUSIC”. NOTE! If music is to be broadcast on the Unity DAU an appropriate PRS Licence should be obtained within the UK. The level of the music can b
Current Thninking Unity DAU, UNITY DAU Installation & Maintenance Manual Document DCC UND 7001-01 Rev 1 June 2005 Page 17 of 17 Technical Specification POWER SUPPLY AND CHARGER AC input 230Va.c +/- 10% 50/60Hz Internal power supply 30VDC Supply & battery monitored Open, Short, Fuses Protection Deep discharge, Short, Thermal Temperature compensation YES Battery size and type 2 x 12V 3.2AHr VRLA connected in series Mains fuse 240V 2A HRC ceramic 20mm Compliant with IEC (EN60127 Pt2) Battery fuse 5AF 24V Blade Fuse Max Battery Charge current 1.1A INPUTS BGM Sensitivity -6dBV
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