Page 73 - CPVC Fire Sprinkler Products Installation Instructions & Technical Handbook
P. 73

INSTALLATION 71
metal studs, as the sharp cut edges of these studs can scar or puncture thermoplastic pipe. TFPP recommends the use of chemically compatible rubber or plastic grommets such as those commonly used in the plumbing industry for protection of the pipe when passing through such spaces. Consult your local authority having jurisdiction for additional information regarding the protection of thermoplastic pipe when passed through metal studs. (See Notice located on Page 55, Chemical Compatibility section.)
FREEZE PROTECTION
Use of Dry Type Sprinklers
When dry type sprinklers are connected to a water filled TYCO CPVC piping system protecting areas subject to freezing temperature, consideration must be given to the appropriate length of the sprinkler that will prevent freezing of the water in the connecting pipes due to conduction, as well as the compatibility of the fitting to which the dry type sprinkler will be attached. Refer to the sprinkler manufacturers’ installation instructions for specific guidance on the minimum recommended lengths between the face of the sprinkler fitting and the outside surface of the protected area, as well as the appropriate fitting types for use with dry type sprinklers.
Use and Cautions with LFP® Antifreeze or Glycerin Antifreeze TYCO CPVC Pipe and other Listed TYCO CPVC Fittings can be protected with LFP® Antifreeze only as outlined by NFPA 13 in areas that are subject to freezing. The guidelines provided in this manual must be followed when providing freeze protection for TYCO CPVC Pipe and Fittings. LFP® 4 Antifreeze is the first UL Certified (Listed) antifreeze for use in CPVC systems. Refer to technical data sheet TFP1680 for instructions on using LFP® Antifreeze in CPVC systems.
When adequate freeze protection cannot be attained with antifreeze, TYCO CPVC systems are recommended to be protected by using batt insulation and building construction techniques that ensure adequate freeze protection and wind blocking. Batt insulation guidelines are provided by most local authorities having jurisdiction with recommendations for NFPA 13D installations provided in the Appendix of that Standard. Local building code and authorities having jurisdiction requirements must be followed carefully, as misplaced or inadequate insulation and wind blocking can create localized freeze of the system piping that can result in damage to the structure and piping system. When adequate insulation and wind blocking are not available, TYCO CPVC Pipe and other Listed TYCO CPVC Fittings can be protected with LFP® Antifreeze or Glycerin antifreeze solutions only as outlined by NFPA 13 in areas that are subject to freezing. The guidelines provided below must be followed when providing freeze protection for TYCO CPVC Pipe and Fittings.
NOTICE
Products coming in contact with CPVC systems (for example, anti-freeze, alcohol based cleaners) must be chemically compatible. (See Notice located on Page 55, Chemical Compatibility section.)
• The use of glycol based antifreeze solutions is specifically prohibited
  
























































































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