Direct Alarm Supplies NX4 User Manual

The Direct Alarm Supplies NX4 is a professional-grade fire alarm control panel designed for commercial and residential applications. It features 4 zones of conventional detection, built-in sounder circuits, programmable relay outputs, battery backup, LED indicators, keypad programming, event logging, and compliance with relevant fire safety standards. Below are key sections for safety, features, installation, programming, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Programming and Configuration 8. Testing and Maintenance 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main control panel, keypad interface, zone terminals, sounder circuits, relay outputs, battery compartment.

Feature	Description
Zone Inputs	4 conventional detection zones with monitoring
Sounder Circuits	2 built-in sounder circuits for alarm notification
Relay Outputs	Programmable relay for auxiliary control
Battery Backup	24-hour standby battery operation
LED Indicators	Zone status, power, fault, alarm indicators
Keypad Programming	Intuitive keypad for system configuration
Event Logging	Stores last 100 events for diagnostics
Fault Monitoring	Continuous monitoring of system integrity
Reset Function	System reset after alarm condition
Test Mode	Comprehensive system testing capability

Installation

Unpack and inspect contents. Mount in suitable location.

Mount panel: Secure to wall using provided mounting brackets.
Connect detectors: Wire smoke detectors, heat detectors to appropriate zones.
Connect sounders: Connect alarm sounders and strobes to sounder circuits.
Connect power: Connect mains power and install backup battery.
Connect earth: Ensure proper earth connection for safety.

WARNING! Installation must be performed by qualified personnel. Ensure compliance with local fire regulations.

First-Time Setup

Power on system; follow programming sequence.

Power up: Connect mains power and backup battery.
System check: Verify all LEDs indicate normal operation.
Zone configuration: Program each zone for appropriate detector type.
Sounder settings: Configure sounder output patterns and volumes.
Test operation: Perform full system test with all connected devices.

CAUTION! Ensure proper wiring and connections before powering on.

Specifications

Zones: 4 conventional detection zones
Sounder Circuits: 2 built-in circuits (max 1A each)
Relay Output: 1 programmable relay (SPDT, 2A)
Power Supply: 230V AC input, 12V DC output
Battery Backup: 12V 7Ah recommended, 24-hour standby
Operating Temp: 0°C to 40°C
Humidity: 0-95% non-condensing
Dimensions: 300mm x 250mm x 100mm
Weight: 2.5kg (excluding battery)
Compliance: EN54 standards for fire detection

Controls and Settings

Access programming via keypad. Front Panel: Power LED, Alarm LED, Fault LED, Zone LEDs, Reset button, Silence button, Function keys.

Keypad Functions: Numeric keys (0-9), Enter, Clear, Zone select, Program, Test, Reset, Silence.

Programming: Zone configuration, sounder patterns, relay functions, system timers, event logging. Settings: Zone type (smoke/heat/manual), alarm verification, sounder duration, system tests, clock settings.

Connecting Devices

Zone inputs: Connect detectors using twisted pair cable. Sounder outputs: Connect sounders and strobes. Auxiliary: Relay output for external control.

Turn off power before making connections.
Use appropriate cable types for each connection.
Ensure correct polarity for sounder circuits.
Use end-of-line resistors for zone monitoring.
Test each connection after installation.

Tip: Label all cables and connections for easy identification.

Programming and Configuration

Supports comprehensive system programming for various applications.

Enter programming: Press PROGRAM + access code.
Zone setup: Configure each zone for detector type and sensitivity.
Sounder programming: Set output patterns and timing.
Relay configuration: Program relay for specific events.
System options: Set clock, event logging, test intervals.
Save settings: Press ENTER to save configuration.
Exit programming: Press CLEAR to return to normal operation.

WARNING! Programming changes should only be made by authorized personnel.

Testing and Maintenance

Regular testing ensures system reliability. Test Mode: Comprehensive system testing capability. Maintenance: Scheduled inspections and cleaning.

Weekly test: Test one detector from each zone.
Monthly test: Full system functional test.
Quarterly inspection: Visual inspection and cleaning.
Annual service: Complete system check by qualified engineer.

Note: Maintain testing records as required by regulations.

Care & Cleaning

Disconnect power before cleaning. Use dry, lint-free cloth only; no liquids or chemical cleaners.

CAUTION! Do not use compressed air or vacuum cleaners near detectors. Keep vents clear of dust.

Regulatory Information

Complies with EN54 standards for fire detection and alarm systems. CE marked for European compliance. Manufactured to ISO 9001 quality standards. Copyright © 2024 Direct Alarm Supplies; all rights reserved. For technical support, visit www.directalarmsupplies.com or contact +44 (0)1234 567890.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Power LED off	No mains power/battery	Check mains supply; verify battery connection.
Fault LED illuminated	Zone fault/system error	Check zone wiring; review event log for details.
False alarms	Detector contamination	Clean detectors; check for environmental factors.
No sounder output	Wiring/settings	Verify sounder connections; check programming.
Zone not responding	Wiring/detector fault	Check zone wiring; test individual detectors.

Reset: Press RESET button to clear alarm conditions.

Service: +44 (0)1234 567890; www.directalarmsupplies.com