Sample Line Installation Requirements - Honeywell Vertex Operating Manual

Honeywell Analytics supplies FEP grade Teflon
tubing with all new monitors. This tubing is
manufactured to our own strict specifications,and has
been purged of all byproducts of the manufacturing
process. On occassion, users have supplied their
own FEP type tubing. Should you choose to use
your own tubing, be advised that some brands of
FEP tubing off-gas small amounts of HF, which can
be detected on start up by Honeywell Analytics
monitors configured for detecting mineral acids
gases (HBr, HCl, HF, NF3). Before enabling building
alarm systems, make certain that 1) you have
installed the correct Chemcassette
monitor reads zero.
2.4.1 Sample Line Installation
Requirements
Follow the general requirements listed below when
installing sample lines.
• Sample lines should not exceed 400 ft. (122
m) in length.
• Route all lines as direct as possible to improve
transport time. See
for transport times.
• Avoid running sample lines through areas of
great temperature extremes, such as adjacent
to steam or chiller lines.
• Sample lines should not be crimped, bent to
less than a 12 in. (30.5 cm) radius, or placed
in an area where weight could collapse
Vertex Technical Handbook
, and 2) your
®
Appendix B, Specifications,
V
ertex 72-Point Continuous Monitor
TM
the tubing. Sample lines should be easily
accessible for periodic inspection.
• Where possible, leave as many bends
exposed for periodic visual inspection of the
line for kinked or damaged tubing.
• Check each sample line installation for
seal integrity after completing installation of
the Vertex System. See
Checking Sample
procedure. Also use this procedure to detect
leaking or severed tubing after events, such
as construction, which may have affected the
integrity of the tubing.
• Unused sample line port(s) may be blocked
by the user with a plug, or a particulate filter
may be installed to keep the system clean. If
using a plug, make sure system vacuum level
is adjusted.
• If an analyzer is installed in the Vertex with
a Chemcassette tape, the optics may need
cleaning before activating a previously unused
point(s).
2-5
Section 3.9, Leak
Lines, for the leak check