CONTENTS
Introduction
Parts List
Specifications
Physical Installation
Front panel labels
Mounting to the wall
Pipe hole configuration
Exhaust pipe
Wiring Installation
Terminal designations
Relays
Setting the Addresses
Powering up
External reset
INTRODUCTION
The LT-200 NFXI-ASD Series is part of the Fire Alarm Aspiration
Sensing Technology
(FAAST) family. FAAST is an advanced fire
®
detection system for use where early warning and very early warning
are a requirement. The system continuously draws air from the
controlled environment through a series of sampling holes to monitor
the environment for smoke particulate.
The NFXI-ASD is the addressable version of the FAAST LT-200
range, communicating with the CIE (Fire Panel) via a proprietary loop
protocol. It is available in 3 different models:
NFXI-ASD11-HS - Has single channel capability with one high
sensitivity smoke sensor.
NFXI-ASD12-HS - Has single channel capability with two high sensitivity
smoke sensors in a common chamber for coincidence detection.
NFXI-ASD22-HS - Has two channel capability with two high sensitivity
smoke sensors in separate chambers. (One sensor for each channel).
This guide provides information for mounting the unit, basic installation
and advice on pipe layout designs, together with an overview of using
the PipeIQ software to achieve EN54 compliant designs. For more
complex designs using increased functionality (experienced users
only) please see the FAAST LT-200 Advanced Setup and Control
Guide - reference D200-100-01.
Important Note
Aspirating Smoke Detectors supplied and installed within the EU must
conform to the EU Construction Products Regulation (CPR) 305/2011
and the related European Product Standard EN 54-20. FAAST LT-200
has been tested and certified to ensure that it conforms to the necessary
Standards, but strict adherence to this instruction guide is advised to
ensure that the installation meets the requirements of the CPR.
The PipeIQ software is a design application to help a user create or
verify EN54 compliant pipe layouts, and to allow configuration of the
FAAST LT-200 unit. (Note: Always check you are using the latest
version. It can be downloaded from www.systemsensoreurope.com.)
The performance of this system is dependent upon the pipe
network. Any extension or modification to the designed installation
may cause improper operation. The operational effects of such
changes need to be verified using the PipeIQ design software.
This equipment and all associated pipe work must be installed in
accordance with all relevant codes and regulations.
N200-102-01
Fire Alarm Aspiration Sensing Technology
NFXI-ASD11-HS NFXI-ASD12-HS NFXI-ASD22-HS
ADDRESSABLE FAAST LT-200 MODELS
1
Front Panel
1
Indicators and fault descriptions 8
Buttons
1
Testing
2
Service
2
PipeIQ Software
2
3
Appendix A -
4
PipeIQ and Pipe System Design
4
Appendix B -
5
Practical Pipe Designs
5
6
6
6
Warning
QUICK INSTALLATION GUIDE
7
8
9
9
10
11
12
PARTS LIST
Description
FAAST LT-200 unit
Mounting bracket
3-pin Terminal block
4-pin Terminal block
2-pin Terminal block
47 k-ohm EOL Resistor
USB Cable
Front Panel Labelling Pack
Wiring Diagram Label
Quick Installation Guide
SPECIFICATIONS
Electrical Characteristics
Voltage Range:
Supply Current: 1 Channel: 170mA (typical); 360mA (max) @ 24
Com. Loop Supply Voltage: 15 – 29 VDC (Loop current ≤ 900mA)
Com. Loop Standby Current: @ 24V: 900 µA max. (2 sensors + 2
Module Isolator Characteristics
Maximum rated switching current
(under short circuit, Is max): 0.9A @ ≤ 29V
Maximum leakage current (IL max)
with the switch open (isolated state): 15mA
Maximum series impedance with
the switch closed (Zc max): 190 m ohm at 15Vdc; 1A
Power Reset:
Configurable Input:
Relay Contact Ratings:
Environmental Ratings
Temperature:
Relative Humidity:
Flow Fault:
IP Rating:
Mechanical
Exterior Dimensions:
Wiring:
1
®
Quantity
1
1
6
1
3
2
1
1
1
1
19 - 31.5 VDC
VDC 25
C (excluding sounders)
o
2 Channel: 270mA (typical); 570mA (max) @ 24
VDC 25
C (excluding sounders)
o
channels polled once every 5s)
0.5s
Activation Time: 2s (min)
2.0 A @ 30 VDC, 0.5A @ 30 VAC
-10°C to 55°C
10% to 93% (non-condensing)
± 20% of the reference flow
65
See Figure 1
0.5 mm² to 2 mm² max
ENGLISH
I 56- 6577- 008
I56-6577-008