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2. Check each length of sensing cable before installation.
To ensure that each length of sensing cable is intact and free of
contamination, follow the Sensing Cable Test Procedure detailed
on page 6. Do not use damaged or contaminated sensing cable.
3. Observe proper precautions when handling sensing cables.
Observe the do's and don'ts under "General Notes" on page 1 of
these instructions; take care to avoid damaging or contaminating
sensing cable.
4. Connect, orient, install, and test each length of sensing cable in sequence.
1. Connect a Modular End Termination (TT-MET-PC) to the first
sensing cable length to be installed.
Note: This step is not required for a zone sensing cable, which
has a factory-installed end termination.
If installing modular sensing cable in double-contained piping,
refer to the TraceTek Double-Containment Installation Guide
(LIT-138) for detailed instructions.
2. Orient sensing cable so end termination will be away from
connection to the TraceTek alarm module. Work out from the
alarm module connection. For sensing cable on reels (lengths
over 10 feet), put the reel on an axle and pull the cable out.
3. Install sensing cable in accordance with the leak detection
layout plan.
For sumps, containment trenches, and subfloor applications,
pull the cable alongside the installed hold-down clips;
minimum bend radius is 2" (50 mm). Leave 6" (150 mm) of
sensing cable on each end for the connector service loop.
Important: Verify that the adhesive securing the hold-down
clips has dried; liquid adhesive must not contact the cable.
Push sensing cable into the hold-down clips and position the
sensing cable to lay flat on the surface to be monitored.
In sumps that may collect water, mount at least a portion of
TT5000 series cable vertically.
Be sure not to leave TT5000 series cable so it may be kinked,
pinched, or subjected to pressure, as this may trigger an alarm.
4. Test each length of sensing cable after installing it and before
attaching it to cable already installed. Confirm that the
sensing cable is clean and intact by following the Sensing
Cable Test Procedure detailed on page 6.
5. Connect the sensing cable to the cable string (lengths of
sensing cable connected in series) previously installed; before
making connection push heat-shrinkable tube onto sensing
cable.
Note: If installing sensing cable in a double-wall tank or
other inaccessible location, the heat-shrinkable tube must
be shrunk down before installation; see step 5 on page 5 for
instructions.
For sumps, containment trenches, and subfloor applications:
• Leave a service loop at each connector as shown.
• Mark the connector position on the layout plan.
• Install TraceTek mapping tag (TT-TAG).
Note: As an extra precaution on large installations,
periodically test the entire cable string to confirm that
all installed sensing cable is still clean and intact.
Unplug the end termination and connect it to the next length
of sensing cable to be installed.
Repeat the installation sequence for each length of cable.
Connector with pins
toward module
Service
loop
nVent.com | 3
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