Installation Guide

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• Proper planning prior to installation is essential as to avoid possible contact with concealed plumbing or
electrical wiring inside walls, floors or ceilings as well as maintaining proper clearances. Be sure to plan
a sufficient number of supports for the entire system that will maintain the required straight-line pitch and
hold the system in place. A continuous straight-line pitch of at least 1/4 inch (2 degrees) to the foot on
horizontal runs must be maintained in order to properly rid the system of the corrosive condensate.
• The vent system shall not be routed into, through or within any other actively used vent or chimney.
General Installation Requirements:
Pre-Installation Considerations:
Install in accordance with these instructions and those of the appliance manufacturer. Consult the appliance
manufacturer’s instructions for the maximum horizontal length of the vent connector, as well as any restriction
on total vent height, proper sizing of the vent, common venting considerations and procedures for connecting
the vent to the appliance. The installation must conform to applicable NFPA/ANSI standards, as well as local
codes. Contact the authority having jurisdiction prior to beginning any work to obtain any required permits.
Saf-T Vent CI Plus is a double wall Special Gas Vent that is UL Tested and Listed to the UL 1738 Standard.
Saf -T Vent CI Plus is appropriate for use on Category I, II, III and IV gas fired appliances with maximum flue
gas temperatures of 550°F. Non categorized condensing appliances and appliances that call for AL29-4C vent
systems are also appropriate for Saf-T Vent CI Plus.
Saf-T Vent CI Plus has been tested at 2 1/2 times its positive pressure rating of 15" W.C.
NOTE: CI Plus Is also available with insulation in the annular space between the inner and outer
walls. All installation requirements and instructions referenced throughout this document apply to
both standard CI Plus and insulated CI Plus (ICI Plus). CI Plus and insulated CI Plus parts can be
interchanged.
• The appliance manufacturer's instructions take precedence over this document.
• Failure to conform to any of these requirements may violate local, state, national or international codes
as well as create conditions which may cause catastrophic property damage or personal injury. Failure to
conform to any of these requirements will also void any warranties, stated or implied.
• Saf-T Vent CI Plus vent sections, or other Saf-T Vent products, must be used throughout the entire
length of the system. Alternatives such as galvanized pipe, PVC, nonmetallic pipe, prefabricated chimney,
field-fabricated vents or Type B vent sections must not be used. Do not mix pipes, fittings, or joining
methods from different manufacturers.
• If called for by the appliance manufacturer’s instructions, a drain fitting must be located as close as
possible to the appliance flue outlet.
• All joints must be sealed with a factory adhered seal or either GE RTV 106 sealant or Dow Corning #736
sealant. Allow any field-applied sealant to cure for 24 hours before operating the appliance.
• More than one appliance may not be interconnected to any part of the venting system, unless specifically
allowed by each of the appliance manufacturers' instructions. Under no circumstances should a natural
draft appliance be interconnected with a forced draft appliance. All connected appliances must be all
natural draft or all forced draft. When venting multiple forced draft appliances, precautions must be taken
to prevent back flow of draft.
• Any penetrations of ceilings, floors, or walls must be properly fire-stopped.
• Whenever gas-burning equipment is installed in the same space where halogenated substances may
exist (refrigerants, solvents, bleaches, salts, etc.), clean outside air must be utilized for combustion.
Saf-T Vent Model CI Plus is also for use with gas or oil fired appliances Listed as suitable for venting with type
L venting systems and which its continuous flue gas temperature does not exceed 570°F (300°C).