Microbore Installation Guidelines - Xtralis VESDA VFT-15 Product Manual

VESDA VFT Product Guide
B.2

Microbore Installation Guidelines

These instructions are the basic sequence of steps you will be required to perform when installing a microbore
network. The normal procedure for installation is:
1. Check the design documents to gather information on the pipe network design specifications.
2. Mark the spot where the detector is to be installed.
3. Install the detector. For further information refer to Chapter 3.
4. If entry points are required to an enclosed area like a cabinet, drill an appropriate size hole in the cabinet
top or use an existing cable entry port.
5. Mount the microbore in the appropriate positions as specified by the design documents.
6. Check if the design documents require sampling end points and install as required.
7. Run the microbore to the detector ensuring there are no kinks.
8. Insert the microbore into the detector. Do not glue the pipes to the detector manifold.
9. Update the design documents with any changes that may have been made to the original plan.
10. Use appropriate labels and tag the microbore tube and sampling holes.
11. Update the design documents with any further changes that may have been made during the tests, and
give a copy of the updated design documents to the person commissioning the system.
B.2.1 Microbore Network Components
Microbore
Sampling is achieved through the microbore flexible tubing with 6 mm (0.24 in) OD and 4mm (0.16 in) ID.
Sampling Points
Microbore sampling points are attached to the end of the flexible microbore tubing. There are two types:
sintered end of line filter and metallic mesh sampling point. These are shown in the following figure.
(A)
Figure B-1: Diagrams showing (A) Sintered End of Line Filter and (B) Mesh Microbore Sampling Point.
B.2.2 Recording Microbore Network Details
Once you have finished installing the microbore network you will need to update the design documents with
any modifications. It is critical that you record any changes from the original plan for the commissioning and
testing phases at the site.
If significant changes to the original plan were required ensure that transport times are still within site
specifications. Failure to do so may lead to the installation of a microbore network that does not meet
customer or local fire authority codes and standards.
After updating the design documents you must give a copy to the person who will be commissioning the
system.
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(B)
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