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Xtralis VEU Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Section 1
Table of Contents
Introduction to Good Design
Introduction to Pipe Network Design
Before You Start
Designing a Pipe Network
Gather Site Information
Site Layout and Measurements
Regulatory Requirements
Air Flow
Ambient Conditions
Purpose of the Site
Surrounding Environment
Site Construction
Air Sampling Methods
Standard Pipe Sampling
Capillary Tube Sampling
Open Area Protection
Return Area Protection
Object Protection
In-Duct Sampling
Large Area Sampling
Dilution
Cumulative Sampling
4.10 Reference Sampling
4.11 Sampling Methods for Different Applications
4.12 Additional Monitoring Equipment
Defining the Site
Regulatory Requirements
Fire Zones and VESDA Addresses
Plan and Map a Pipe Network
Grid Overlay
Detector Parameters
Site Parameters
Client Parameters
Performance Based Parameters
Choice of Detector
High Air Exchange Rooms
Standard Rooms
Designing Pipe Networks for Specific Applications
Localized Detection
High Ceiling
Testing Design Performance
Hole Balance
Maximum Transport Time
Hole Sensitivity
10 Advantages of Multi Pipe Systems
10.1 System Performance Graph
10.2 Sampling and End Cap Holes
10.3 Pipe Connections
Section 2
Introduction
Pipe Network
Installation Steps
Pipe Network Installation
Components of a Pipe Network
Couplings, Socket Unions and Expansion Joints
Pipe Line
Bends and Elbows
Pipe Adaptors
Reducing Connectors
Tees, Y-Pieces and J-Pieces
Capillary Tubes and Drop Pipes
Miniature Sampling Points
3.10 Solvent Cement
Mounting Fixtures
3.11 Labels
Cementing Pipes Together
Cutting Pipes
Joining and Bonding
Working with Pipes
Mounting
Bending Pipes
Drilling Sampling Holes
Labelling
Using Capillaries and Drop Pipes
Ceilings and Floors
Installing Pipe Networks
Return Air Grilles and Air Ducts
Cabinet and Rack Detection
Open Spaces
Recording Pipe Network Details
Index
Section 3
Introduction to VESDA Commissioning
The Commissioning Process
Before Going to the Site
Once on Site
Pre-Commissioning
VESDA Commissioning Form - Prerequisites
Generic Configuration (VLC, VLS, VLP)
System Configuration and Setting Thresholds
Detector Specific Configuration Steps (VLC, VLS, VLP)
VESDA VFT-15 Detector Configuration
Documenting Configuration and Thresholds
VESDA VLF Configuration
Performance-Based Smoke Testing
System Integrity Test
Documenting Test Results
Testing Devices
Testing Relay Function
Hand over
Index
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Air Flow
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VESDA
Student Workbook
Rev 8a • 15SEP21
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Chapters
Section 1
245
Section 2
299
Section 3
340
Table of Contents
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