Installation Guide

ManualsBrandsHeat-Fab ManualsHVAC3" Saf-T Vent SC Horizontal Termination Adapter

Saf-T Vent

For Venting Residential and Light Commercial Appliances

Category I,II,III,IV Appliances

Certain Approved Direct Vent and/or Sealed Combustion Appliances

For Use on Positive, Neutral, and Negative Pressures up to 8" W.C.

Installation and Maintenance Instructions

Double Wall

One Inch Air Space

AL 29-4C

Stainless Steel

Special Gas Vent

130 Industrial Boulevard

Turners Falls, MA 01376

Call (800) 772-0739

Fax (413) 863-4803

www.heat-fab.com

registered trademark of Heat-fab, Inc. AL 29-4C is

a registered trademark of ATI Properties, Inc.

UL and the UL Mark are registered trademarks of

Underwriters Laboratories, Inc.

Tested and Listed to

UL 1738/ULC S636

by Underwriters Laboratories, Inc

IMPORTANT: Do not install this product until you have read and fully understand these

installation instructions. Failure to comply with these instructions will result in an

improper installation and will void any stated warranty.

• Examine all components for possible shipping damage prior to installation.

• Proper joint assembly is essential for a safe installation.

Follow these instructions exactly as written.

Check severeness of joints upon completion of assembly.

• This venting system must be free to expand and contract.

This venting system must be supported in accordance with these instructions.

• Check for unrestricted vent movement through the walls, ceilings, and roof penetrations.

• Different Manufacturers Have Different Joint Systems and Seals.

Do Not Mix Pipe, Fittings, or Joining Methods from Different Manufacturers.

• Seal weather exposed joints of the outer jacket with foil tape or an exterior grade

silicone sealant.

Summary of content (16 pages)

PAGE 1
$5 Installation and Maintenance Instructions Saf-T Vent® SC Double Wall One Inch Air Space AL 29-4C® Stainless Steel Special Gas Vent For Venting Residential and Light Commercial Appliances Category I,II,III,IV Appliances Certain Approved Direct Vent and/or Sealed Combustion Appliances For Use on Positive, Neutral, and Negative Pressures up to 8" W.C. IMPORTANT: Do not install this product until you have read and fully understand these installation instructions.
PAGE 2
TABLE OF CONTENTS CATEGORY 2 PAGE Introduction 3 Pre-Installation Considerations 3 General Installation Considerations 3 Clearances to Combustibles 4 Horizontal Installations 5 Vertical Installations 6 Joint Assembly Instructions 7 Cut to Length 8 Adapting to Saf-T Vent EZ Seal 9 Air Intake Connection 10 Appliance Connection 10 Condensate Drains 11 Horizontal Supports 12 Vertical Supports 13 Fire Stop / Wall Thimble /Support 14 Horizontal Terminations 14 Tall Cone Flashin
PAGE 3
Introduction: Saf-T Vent SC is an advanced concentric vent system designed for zero clearance installation in residential and light commercial applications. The inner wall is constructed from superferritic AL 29-4C® stainless steel. The outer wall is also constructed from stainless steel, providing durability and a lasting finish.
PAGE 4
Clearances to Combustibles: • • • • • • 4 The allowed clearances may differ by the appliance manufacturer. The appliance manufacturer’s instructions and applicable local codes take precedence over this document. Combustible Material is any material made of or surfaced with wood, compressed paper, plant fibers, or other materials that are capable of being ignited or burned. Such material shall be considered combustible even though it is flame-proofed, fire-retardant, or plastered.
PAGE 5
Horizontal Installation Requirements: 1. The horizontal vent connector must slope upward toward the termination at least 1/4 inch per foot and be installed so that all condensate runs back toward the appliance and is not retained in any part of the venting system.
PAGE 6
Vertical Installation Requirements: 1. Seal weather exposed joints of the outer jacket with foil tape or an exterior grade silicone sealant. 2. The vent system must terminate at least 3 feet above the roof line and at least 2 feet higher than any portion of the building within 10 feet. 3. When terminated at a height of more than 6 feet the stack must be supported by a support bracing. The vent should be supported every 10 feet. 4.
PAGE 7
Joint Assembly Instructions: 1. Before joining the sections or fittings together, use an alcohol pad to wipe the joint area of both ends of the inner pipe. This will remove any foreign matter which may affect the integrity of the seal. Install the system with the female ends (ends with the red seal) pointing away from the appliance. (Unless specified differently by the appliance manufacturer.) Wipe Ends With Alcohol Pads Male End Female End 2.
PAGE 8
Straight Sections Cut To Length: If a custom length of SC is necessary, a standard vent section can be cut. 1. Measure the distance of the length needed, taking the measurement from the end of one of the outer jackets to the beginning of the other outer jacket on the section to connect to, (A to B on diagram). 2. Select a section that is longer than the required length. 3. It will be necessary to disassemble the vent prior to cutting. Stand the section on end with the holes up.
PAGE 9
Adapting to EZ Seal: Saf-T Vent SC is compatible with other Saf-T Vent products. An adapter (SC_ _ADEZ) is used to connect Saf-T Vent SC to Saf-T Vent EZ Seal or Saf-T Vent appliance adapters and flue collars. • Insert the male end of the SC adapter into the female end of the EZ Seal vent section and complete the ring and tab connection (refer to EZ Seal instructions). • Begin the Saf-T Vent SC system by inserting the male end of the SC section into the female end of the adapter.
PAGE 10
Air Intake Connections for Direct Vent and Sealed Combustion Appliances*: • W ARNING: This application must be approved by the Appliance Manufacturer. Flow The Air Intake Tee may be used on approved direct vent and sealed combustion appliances that have separate (non-concentric) air intake and flue exhaust collars. The male end of the tee connects to EZ Seal appliance adapters and the tee takeoff /snout connects to the appliance air intake.
PAGE 11
Condensate Drains: When An Internal Condensate Drain Is NOT Part of the Appliance: • A Saf-T Vent SC In-Line Drain Section is strongly recommended. Install this drain fitting as close to the appliance flue collar as possible. • A condensate drain is required for every 30 feet of horizontal vent and at/near the bottom of a vertical stack. • Use the In-Line Drain Section for a straight horizontal or vertical run. When used horizontally, rotate the fitting so that the drain tube is as vertical as possible.
PAGE 12
Horizontal Supports: Saf-T Vent SC must have supports for every six (6) feet of horizontal run and after every transition from vertical to horizontal. Support hangers by themselves do not maintain the necessary clearances to combustible materials; be sure to consider clearances when planning the system. The supports must be secured to solid material using at least #10 fasteners. Do not fasten supports to drywall sheathing without using hollow wall anchors.
PAGE 13
Support Clamp, (4_ _27SS): Support clamps are sold in pairs and can be clamped around the vent and suspended from a rod or cable. They can be used singularly as a saddle clamp to rest the vent in and suspended from two rods or cables. Support Clamp Support Legs Rotated Horizontally: Support legs can be used on horizontal runs by rotating the clamp at the rivet connection. The legs can be cut to shorter lengths if necessary.
PAGE 14
Fire Stop/ Wall Thimble/ Support, (SC_ _FS): •The Saf-T Vent SC Fire Stop can be used as a firestop, a wall thimble, or as a support plate. •To use as a Wall Thimble prepare an opening according to the chart below. Remove any insulation from the opening, using additional framing if necessary. Attach the plate over the center of the opening using appropriate fasteners.
PAGE 15
Tall Cone Flashing: Directly On Roof or Curb: Tall Cones are available for flat (SC_ _TCF), 2/12 pitch - 6/12 pitch (SC_ _TCFA), and 6/12 -12/12 pitch roofs (SC_ _TCFB). Prepare a square or round opening at least 1/4" larger than the outer jacket (5 1/4" for 3" vent or 7 1/4" for 4" vent). Remove any insulation from the opening. Apply weather-stripping or outdoor caulk to the bottom of the cone plate and attach the plate to the roof using common construction methods.
PAGE 16
Maintenance Procedures: • Normal operation of gas burning appliances does not result in deposits of combustible soot in venting systems. However, a poorly adjusted or malfunctioning appliance can deposit soot and other debris which can enter the vent system. As with all vents, the Saf-T Vent SC system should be inspected at least annually for the presence of deposits of soot or debris. Any such accumulation should be removed and the appliances adjusted to eliminate future accumulation.