- Top Results
Issue
Some commercial fire installations require isolating the horn circuit from the strobe circuit. The horns can be silenced while keeping the strobes active.
Solution
Use the following instructions for commercial fire installations require isolating the horn circuit from the strobe circuit. The horns can be silenced while keeping the strobes active.
Programming Point Index for Point 3
Program the point index for Point 3 according to Table 1 above.
Program the Point Text for Point 3 to read PRESS COMMAND 4
Programming Requirements
Programming of these relays and point indexes can be accomplished by using the Remote Programming Software (RPS) or the D5200 Programmer.
Area Wide Relays:
1. For the Fire Bell entry Area 1, program an A.
2. Leave the Alarm Bell entry blank (or 0 if using RPS)
Panel Wide Relays:
1. For Summary Burg Alarm Relay, program B
Point Indexes:
1. Select a Point Index that will be unique to Point 3,
and program based on Table 1.
Operation
When a fire alarm occurs, the control panel activates Relay A (Terminal 6), providing the trigger input to the Horn D192C/G. The output from Relay A also changes Point 3 voltage to 5.0 VDC (electrically, an open condition caused by the 2.2K Ohm resistor), causing an alarm (burg alarm) condition. This activates Relay B (based on the Summary Alarm Relay programming shown above). Relay B provides the trigger voltage for the Strobe D192C/G.
When the Fire Alarm is acknowledged at the command center, power is no longer applied to Relay A causing the horns to silence and returning Point 3 to a normal state of 2.5 VDC. However, Relay B continues to stay activated until alarm memory is cleared at the command center by using Command 4 or entering Passcode + [ESC].
** NOTE: After the Fire Alarm is acknowledged, the command center first scrolls the fire alarm points, then scrolls AREA 1 1 ALARMS. This occurs because Point 3 is a Burg Point.
Note - This equipment should be installed in accordance with the NFPA 70(National Electrical Code) and NFPA 72 (National Fire Alarm Code) for Local, Central Station, Remote Station and Household Fire Warning Systems and under the limits of the Local Authority Having Jurisdiction(National Fire Protection Association, Batterymarch Park, Quincy, MA 02269). Printed information describing proper installation, operation, testing, maintenance, evacuation planning and repair service is to be provided with this equipment.
Part numbers D7412G, D7212, D7412, D9112, D9124, D9412, D9412G, D192C, D192G, MDL, MDLW, D411, D412, AVS-44, AVS-44R
