Installation Step 3: Installing Sample Lines - Honeywell Vertex VC 4 User Manual

Installation Step 3: Installing Sample Lines

Use only FEP Teflon® tubing to assure proper sample transport. Other types of tubing are not sufficiently inert. See
Specifications, for tube specifications. FEP tubing can be ordered from Honeywell Analytics.
Install sample lines from each location to the Vertex™ VC4 System, allowing room to access the back panel. This
procedu involves:
Sample Line Installation Requirements
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Sample Line Connections
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Installing Sample Line Particulate Filters
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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
occasions, 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®, and 2)
your monitor reads zero.
1/4 in. (6.35 mm) O.D. x 0.190in. (4.83 mm) (Thin wall)
Sample Line Installation Requirements
Follow the general requirements listed below when installing sample lines.
• Sample lines should not exceed 400 ft. (122m) in length.
• Route all lines as direct as possible to improve transport time.
• 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 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™ VC4 System.
See Leak Checking Sample Lines, for the leak check 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 points require a filter. Filter kit 1295A0702 is recommended.
• If the Vertex™ VC4 is installed with a Chemcassette® tape, the optics may need cleaning before activating
a previously unused point(s).
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Vertex VC4 System 26 User Manual