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M&G DuraVent PolyPro Installation Instructions Manual

Single-wall gas vent system for category ii & iv gas-burning appliances
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Installation Instructions
PolyPro Single-Wall Gas Vent
System for Category II & IV
Gas-Burning Appliances

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Summary of Contents for M&G DuraVent PolyPro

  • Page 1 Installation Instructions PolyPro Single-Wall Gas Vent System for Category II & IV Gas-Burning Appliances...
  • Page 2 A MAJOR CAUSE OF VENT RELATED FIRES IS FAILURE TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES) TO COMBUSTIBLE MATERIALS. IT IS OF THE UTMOST IMPORTANCE THAT POLYPRO® BE INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS. WarnIng Important risk of carbon monoxide poisoning Read through all of these instructions or fire due to joint separation or pipe before beginning your installation.

  • Page 3: Table Of Contents

    polypro Single-Wall gas Vent System For the most up-to-date installation instructions, see www.duravent.com CONTENTS applIcatIon............4 clearanceS .

  • Page 4: Application

    You must use only Vertical Termination, are listed at 0” clearance to combustibles for exhaust temperatures authorized M&G DuraVent PolyPro vent up to 230°F (110 °C) for both vertical and parts, or other parts specifically authorized in these instructions and listed by the horizontal installations.

  • Page 5: Joint Connections

    Refer to the appliance manufacturer for leakage is found at joints the connected the maximum and minimum allowed vent appliances should be turned off and the runs for your specific appliance model, leaks repaired. A venting system must including maximum number elbows allowed not be routed into, through, or within any in the system, and for the pressure drops other vent, such as an existing masonry or...
  • Page 6 cautIon caution: do not use grease or other lubricant on the vent seals. only water may be used for this purpose. grease or other lubricant can make the seal brittle or it can result in tears in the surface of the seal, this will result in flue gas leakage. ALTERNATE WALL STRAP DESIGN AVALIABLE GASKET INSIDE...

  • Page 7: Installation

    pipe section is also available. Screws are not InStallatIon allowed for joint connection. Never penetrate the wall of PolyPro vent pipe sections. 1. Connect PolyPro vent pipe to the A Locking Band is required at every exhaust appliance. Use the Appliance Adapter/ PVC vent joint, and optional for the air inlet Adapter and Clamp to connect PolyPro vent vent joints.
  • Page 8 4. If PolyPro vent pipe needs to be cut, be sure that the vent is cut square (not at an angle) to the end of the pipe and that burrs are removed before assembly. 5. Take precautions with horizontal installation, the slope of the vent pipe must be at least ¼”...

  • Page 9: Horizontal Terminations

    HorIzontal termInatIonS: For PolyPro vent systems ending in a horizontal termination, follow these steps: INTERIOR 1. Determine your location through the wall. WALL PLATE Verify your location meets the requirements EXTERIOR for horizontal terminations as described WALL PLATE in all applicable building codes and your appliance’s installation instructions.
  • Page 10 Pipe Termination. Refer to Table A for hole sizes. Remember to maintain the necessary INTERIOR clearance to combustibles. The Twin Pipe WALL PLATE Termination can be positioned in either a EXTERIOR WALL PLATE horizontal (side-by-side) or vertical (one pipe above the other) orientation (Figure 8). GASKET The Single Horizontal Termination can be used for the appliance’s exhaust if a vented...
  • Page 11 hardware. Then secure the Interior Wall end’s keyway slides past the Exterior Wall Plate to the Termination pipe itself using the Plate as shown. If needed, the PolyPro vent supplied sheet metal screws through the pipe sections can be cut to length for your four tabs on the wall plate.

  • Page 12: Vertical Terminations

    PolyPro vent pipe between the appliance and the Termination. Secure with Wall Straps and Locking Bands at the joints as described in the Joint Connection section. VertIcal termInatIonS: For PolyPro vent installations ending in a vertical termination, the vent system must terminate at least 2 feet above the roof line or any wall or vertical structure within 10 feet.
  • Page 13 to secure the Firestop Spacer in place. 3. Determine the location of the roof penetration. Cut a hole from the exterior of the roof. Important: Make sure that no dirt Adjustable Roof Flashing, Flat Roof or debris drop into the boiler exhaust or air Aluminum (0/12 - 5/12 Pitch) intake piping.

  • Page 14: Condensate Drain

    8. Complete the connection between the WarnIng Vertical Termination Cap and the appliance Follow the appliance manufacturer’s using appropriate PolyPro vent pipe and instructions with regards to the fittings. minimum trap height of the condensate drain. Insufficient height on the trap 8a.

  • Page 16: Warranty

    m&g duraVent Warranty M&G DuraVent, Inc. (“DuraVent”) provides this limited lifetime warranty for all of its products to the original purchaser, with the exception of Ventinox® (lifetime), PolyPro® (ten years), DuraBlack® (five years) and all Termination Caps (five years). Subject to the limitations set forth below, DuraVent warrants that its products will be free from substantial defects in material or manufacturing, if properly installed, maintained and used.

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