Method Statement for Fire Alarm System Installation

Method Statement For Fire Alarm System Installation & Testing Below is the method statement for the installation of fire alarm system which can be modified for different type of systems like HSSD or Vesda etc. The steps are very general and should be customized depending upon the project specific requirements, specifications and applicable NFPA or other standards. Wiring & Connections Verify that hardware and devices are NRTL listed for use with fire-alarm system before making connections. Make addressable connections with a supervised interface device to the following devices and systems. Install the interface device less than 3 feet (1 m) from the device controller. Make an addressable confirmation connection when such feedback is available at the device or system being controlled. 1. 2. 3. 4. 5.

Alarm-initiating connection to smoke-control system (smoke management) at fire-fighter smoke-control system panel. Alarm-initiating connection to stairwell and elevator-shaft pressurization systems. Smoke dampers in air ducts of designated air-conditioning duct systems. Alarm-initiating connection to elevator recall system and components. Alarm-initiating connection to activate emergency lighting control.

6. 7. 8. 9.

Alarm-initiating connection to activate emergency shutoffs for gas and fuel supplies. Supervisory connections at valve supervisory switches. Supervisory connections at low-air-pressure switch of each dry-pipe sprinkler system. Supervisory connections at elevator shunt trip breaker.

10.

Supervisory connections at fire-pump power failure including a dead-phase or phase reversal condition. 11. Supervisory connections at fire-pump engine control panel.

Installation Procedure / Method Statement The devices/peripherals (Smoke detectors, heat detectors, break glass, duct detectors, beam detectors, control and monitoring modules) are connected in Class A circuit with the Control panels. The speakers & speaker with strobes are connected in Class A circuit with the Control panels. 2 Core 1.5mm2 FP 200 cable to be used for cabling the Initiating Device Circuits (IDC) to the panel, additional 2c x 2.5mm2 FP200 cable is required for the smoke detector with sounder base for the activation of the sounders units. 2 core 1.5mm2 FP 200 cable to be used for cabling the Speakers with the panel, additional 2c x 2.5mm2 FP200 cable is required from the FACP for the speaker with strobe for the activation of the strobe unit allied in vertical walls the run of conduit will be kept straight. Comply with NFPA 72 for installation of fire-alarm equipment. Smoke- or Heat-Detector Spacing:    

Comply with NFPA 72, “Smoke-Sensing Fire Detectors” & “Heat-Sensing Fire Detectors”. Smooth ceiling spacing shall not exceed 30 feet (9 m). Fire-Alarm Control Unit: Surface mounted, with tops of cabinets not more than 72 inches (1830 mm) above the finished floor. Annunciator: Install with top of panel not more than 72 inches (1830 mm) above the finished floor. Fault Finding

Battery Charger Faults: Battery Charger Faults that can arise during the operational lifetime of a panel. You may observe one of the following Faults; Charger 2% out of range Battery Charger Supply incorrect to correctly measure the output voltage you will need to follow the steps below.  

To prevent damage to the system, disconnect the batteries & power down the system, disconnect the power & harnesses from the Power Supply. Connect the Multi-meter to the battery leads (with batteries disconnected), power up & measure the voltage. Calculate the difference between the measured voltage & 27.6v. NOTE: After 90 seconds, the voltage will drop to