ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS
INSTALLATION INSTRUCTIONS
4
TUBING
UV Resistance – 6 months, please see precautions below.
Chlorine Resistance – 5306 designation, generally a continuously
circulating hot water plumbing loop.
Zurn PEX tube 2" and smaller meets the 25/50 flame spread index/
smoke density index requirements specified in building codes for
use in plenums when encased with an appropriately listed 1/2"
thick fiberglass insulation. Un-insulated installations using special
accessories may also comply, please consult with the factory
for details.
Zurn PEX Tubing Installation Precautions
• Should not be exposed to or stored in direct UV light. When
possible, protect the tubing with an opaque covering.
• Should not be exposed to a direct flame. Braze, solder, or weld
and allow to cool prior to connecting Zurn PEX to metal pipe.
• Should never be used for electrical grounding. Consult the NEC
for recommended grounding methods when PEX is used.
• Do not install within 24" of air return grills or other opening
in the ceiling.
• Should not be installed in conditions near extreme heat.
• Painting Zurn PEX is unnecessary. Water-based latex or acrylic
paints will not aect Zurn PEX tubing; however, oil-based
paints or lacquers should never be applied to Zurn PEX tubing.
• Should only be installed in operating conditions that are
consistent with pressure and temperature ratings that appear
on the tubing and applicable standards.
• Should not be subjected to prolonged exposure to free chlorine
concentrations greater than 4 ppm.
• Zurn PEX tubing that has been crushed or scratched should be
removed from the system and replaced.
• Should never come into contact with any chemicals, pipe
thread compounds, putty, mineral, or linseed oil products.
QICK SERT CR
®
FITTING SYSTEM
Zurn PEX Qick Sert CR fittings are molded from a blend of highly
engineered polymers. The inherent qualities of the polymers
make Qick Sert CR fittings highly resistant to chlorine and other
chemicals present in potable water.
Qick Sert CR Fittings Installation Precautions
• Should only be used in operating conditions that are consistent
with the temperature and pressure ratings of the tube as well as
applicable standards.
• Should not be painted.
• Should not be exposed to direct UV light. When possible,
protect fittings with an opaque covering.
• Male pipe threads must only use PTFE tape as a thread sealant.
• Should not be exposed to cleaners, chemicals, solvents,
sealants, or glues as they could be damaged from contact.
• Should always be stored in clean bins or containers, preferably
in the original packaging.
ZURN PEX XL BRASS FITTING SYSTEM
With over 30 years of installations, Zurn PEX XL brass fittings are
the reliable joining method for flexible piping.
XL Brass Fittings Installation Precautions
• Should only be used in operating conditions that are consistent
with the temperature and pressure ratings of the tube as well as
applicable standards.
• Should not be used in reverse osmosis systems.
• Should not be used in areas with known localized aggressive
water chemistries.
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