M&G DuraVent PolyPro Manuale utente

PolyPro

Installation Instructions

PolyPro Single-Wall Gas Vent

System for Category II & IV

Gas-Burning Appliances

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.

Dear Customer, Installer, or End User:

We welcome any comments regarding

matters pertaining to our DuraVent products.

We welcome any ideas, input or complaints

to help improve our product oering. Send

your emails to:

president@duravent.com

If you are searching for tech support or

product information, please phone us at

800-835-4429.

Or email us at:

[email protected]

• Examine all components for possible

shipping damage prior to installation

• Proper joint construction is essential

for a safe installation. Follow these

instructions exactly as written.

• This venting system must be free to

expand and contract.

• This venting system must be supported

in accordance with these instructions.

• Check for proper joint construction

when joining pipe to ttings.

• Check for unrestricted vent movement

through, walls, ceilings, and roof

penetrations.

• Dierent manufacturers have dierent

joint systems and adhesives. Do not mix

pipe, ttings or joining methods from

dierent manufacturers.

WARNING IMPORTANT

Risk of carbon monoxide poisoning

or re due to joint separation or pipe

breakage.

Read through all of these instructions

before beginning your installation. Failure

to install this product as described in these

instructions will void the manufacturer’s

warranty, may create a re or other safety

hazard, and may aect your homeowner’s

insurance and safety listing of your appliance.

Keep these instructions for future

reference.

PolyPro® is one of M&G DuraVent's GreenVent®

line of products.

PolyPro Single-Wall Gas Vent System

For the most up-to-date installation instructions, see www.duravent.com

PolyPro

CONTENTS

APPLICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4

CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 4

PERMITS . . . .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 4

EQUIPMENT AND MATERIALS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . 4

GENERAL INSTALLATION NOTES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

JOINT CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . 5

INSTALLATION . . . .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 7

HORIZONTAL TERMINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

VERTICAL TERMINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

CONDENSATE DRAIN . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .14

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

APPLICATION

M&G DuraVent’s PolyPro vent pipe is a single-

wall polypropylene gas vent for use with ANSI

Category II and IV gas-burning appliances.

PolyPro is listed by Intertek to the ULC S636

standard in Canada and is rated as a Class IIA,

IIB, and IIC vent system suitable for exhaust

temperatures up to 230°F (110 °C), and a

maximum positive pressure of 8 in-w.c. Check

with your appliance manufacturer or look

in the appliance installation instructions to

verify that M&G DuraVent’s PolyPro Vent is

allowed for use with your appliance.

CLEARANCES

PolyPro single-wall vent system is listed at

0" clearance to combustibles for exhaust

temperatures up to 194°F (90 °C) In addition,

PolyPro single-wall vent system is listed

for exhaust temperatures up to 230°F

(110°C) with 0" clearance for vertical vent

installations, and 1/4" (6mm) clearance

for horizontal vent installations. PolyPro

Concentric vent system parts, including the

concentric Horizontal Termination and the

Vertical Termination, are listed at 0” clearance

to combustibles for exhaust temperatures

up to 230°F (110 °C) for both vertical and

horizontal installations. Check with your

appliance manufacturer to see if larger

clearances are required. Do not ll any air

space clearances with insulation.

PERMITS

Before installation, check with your local

Building Ocial, Fire Ocial, or other

authority having jurisdiction regarding

permits, restrictions, and installation

inspections in your area.

EQUIPMENT AND MATERIALS

Hammer

Drill

Pliers or Channel Locks

Caulking Gun

Plumb Bob

Screwdrivers (Phillips & Standard)

Tin Snips

Saber or Keyhole Saw

Level

Dependable Ladder

Tape Measure

Proper Gloves and Shoes

Eye Protection

Materials You May Need:

RTV Silicone Sealant (be sure sealant is used

before its expiration date)

8 Penny Nails

#8, 1-1/2” Wood Screws

Roong Nails

GENERAL INSTALLATION NOTES

Read through these installation instructions

before beginning your installation. A

properly listed installation is dependent

upon installing the vent in full compliance

with these installation instructions. Proper

planning for your PolyPro vent system

installation will result in greater safety,

eciency, and convenience, as well as

saving time and money. You must use only

authorized M&G DuraVent PolyPro vent

parts, or other parts specically authorized

in these instructions and listed by the

appliance manufacturer in order to maintain

a safe, approved system. Do not mix parts

or try to match with other products or use

improvised solutions. Do not install damaged

or modied parts. Do not use any solvents or

adhesives with PolyPro pipe, other than as

specied in these instructions. Practice good

workmanship. Sloppy work could jeopardize

your vent’s safety. Keep electrical wiring and

building insulation away from all chimneys

and vents. When deciding the location of

your installation, try to avoid modications

to structural components of the building. If

you have any questions, contact either your

dealer or M&G DuraVent directly.

Refer to the appliance manufacturer for

the maximum and minimum allowed vent

runs for your specic appliance model,

including maximum number elbows allowed

in the system, and for the pressure drops

and equivalent length of the ttings. The

total vent length from the appliance to the

termination shall not be greater than what is

specied by the appliance manufacturer.

Plan the layout of the vent system:

Consider the length of horizontal runs,

elbows, clearance requirements, and location

of terminations.

For horizontal vent runs, always maintain

at least a ¼” rise per foot (20mm rise per

1m) away from the appliance to prevent

collection of condensate or buildup of heat

in the vent.

Consider condensate drainage. Refer to

the appliance manufacturer’s installation

instructions for requirements of condensate

drainage.

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. Any such

accumulation should be removed and the

appliances adjusted to eliminate future

accumulation. Use only a soft brush for

cleaning the sections and ttings. If any

IMPORTANT

The vent system must terminate

in accordance with local code

requirements and appropriate National

Codes:

In the US: NFPA 54 / ANSI Z223.1

National Fuel Gas Code or the

International Fuel Gas Code.

In Canada: CAN/CGA-B149.1 Natural

Gas Installation Code or CAN/CGA-

149.2 Propane Installation Code.

leakage is found at joints the connected

appliances should be turned o and the

leaks repaired. A venting system must

not be routed into, through, or within any

other vent, such as an existing masonry or

factory-built chimney ue, unless that vent

or chimney is not being used to vent another

appliance and is only used as a conduit for

the gas-vent system.

Plastic venting systems shall not pass

through re rated separations.

JOINT CONNECTIONS

M&G DuraVent’s PolyPro vent is connected

together by slipping the male pipe end into

the female end (Figure 1) with about 2"

(50mm) of overlap. The PolyPro joint section

can rotate 360-degrees to allow elbows to

point in the desired direction. The PolyPro

vent pipe lengths may be cut to achieve

specic lengths. Alternatively, an Adjustable

Pipe length that slips into the previous vent

MALE END

FEMALE END

GASKET INSIDE

FEMALE END

Figure 1

Figure 3

ALLIGN WALL STRAP WITH

KEYWAY WHERE INSTALLED

ON FEMALE END

WALL STRAP CAN

BE INSTALLED ON FEMALE

END OR BODY OF PIPE

SECURE ANCHOR BOLT TO NEARBY

WALL OR STRUCTURAL MEMBER

TO SUPPORT VENT SYSTEM.

LOCKING BAND

REQUIRED AT

EVERY JOINT

GASKET INSIDE

FEMALE END

WALL STRAP ACTING

AS SUPPORT WITH

ANCHOR BOLT (MINIMUM

1 PER HORIZONTAL

PIPE SECTION)

LOCKING BANDS

REQUIRED AT

EVERY JOINT

ALTERNATE WALL STRAP

DESIGN AVALIABLE

Max

10ft (3m)

Figure 2

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 ue gas leakage.

pipe section is also available. Screws are not

allowed for joint connection. Never penetrate

the wall of PolyPro vent pipe sections.

A Locking Band is required at every exhaust

vent joint, and optional for the air inlet

vent joints. The Locking Band meets ULC

S636 requirements for securing the joint. In

addition, supporting Wall Straps are required

at least every 10 feet (3 meters) for vertical

vent pipe sections, and horizontal or sloped

sections of vent pipe require one supporting

Wall Strap for each pipe section. (Figure 2).

There are two options for Wall Straps: the

polypropylene snap-clamp style, and the

metal bolt-clamp style. (Figure 2 & 3) Both

options are approved and listed for use with

PolyPro. The polypropylene Wall Strap can be

attached at either the female end of the pipe

or on the body of the vent pipe. Determine

the location where the Wall Strap’s anchor

bolt will mount into the wall or framing

member. Mount the anchor bolt into the wall

at that location. Install the body of the Wall

Strap onto the anchor bolt by rotating the

body of the Wall Strap with the encapsulated

nut, onto the threads of the anchor bolt. Do

not over tighten. When the PolyPro vent is in

place, secure the Wall Strap around the vent

pipe by closing the clamp.

The metal Wall Strap can only be mounted

on the body of the vent pipe. Slide the metal

Wall Strap around the body of the PolyPro

vent pipe, or open the clamp to wrap around

the pipe. When the vent pipe is in place,

secure the metal Wall Strap to the nearby

wall or structural member using (2) 1-1/2” #8

wood screws or equivalent. Secure the Wall

Strap around the vent pipe by tightening the

nut and bolt of the clamp.

INSTALLATION

1. Connect PolyPro vent pipe to the

appliance. Use the Appliance Adapter/ PVC

Adapter and Clamp to connect PolyPro vent

to the appliance. Slide the male end of the

Appliance Adapter into the appliance outlet.

Place the Appliance Adapter Clamp over

the Appliance Adapter and then slide the

male end of the PolyPro vent pipe into the

Appliance Adapter. Tighten both hose clamps

on the Appliance Adapter Clamp to ensure

the connection is secure (Figure 4).

If the appliance has a Fernco-style adapter

on its outlet, then the PolyPro vent pipe

may attach directly to the Fernco adapter

without needing the Appliance Adapter.

Additionally, the Appliance Adapter/PVC

Adapter can be used to transition from

PVC vent pipe to PolyPro, if needed. Install

the vent pipe system with the female end

(with the internal gasket) up, away from

the appliance. The Appliance Adapter is

designed to provide a drip-free connection

for most appliance outlets. If the appliance

Figure 4

APPLIANCE

APPLIANCE EXHAUST

OUTLET OR PVC UNION

APPLIANCE ADAPTER/PVC

ADAPTER

PolyPro PIPE

APPLIANCE ADAPTER CLAMP

ALIGN WALL STRAP

WITH KEYWAY

WHERE INSTALLED

ON FEMALE END

has a PVC union for its outlet, the Appliance

Adapter also functions as a PVC Adapter to

transition from PVC to PolyPro pipe (Figure

4). The PVC Adapter requires a standard

PVC union to make the transition to PolyPro

pipe; if a straight length of PVC pipe is on

the appliance outlet, add a PVC union before

connecting the Appliance Adapter. Secure

the connection by tightening the hose

clamps on the Appliance Adapter Clamp.

2. Check that the gasket is retained correctly

in the groove.

3. Add additional sections of PolyPro vent

pipe for your installation. Be sure to check

with your appliance manufacturer for any

restrictions or limits on vent length, number

of elbows, etc.

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” rise per foot (20mm rise per 1m)

away from the boiler, (Figure 5).

6. For each vent joint, a Locking Band is

needed. Refer to the Joint Connection section

above. Additionally, Wall Straps are required

to support the overall vent run. To support

the vent run, mount Wall Straps on a nearby

wall

or other xed structure of the building:

6a. Straight vent sections that are

installed vertical must be supported

with Wall Straps every 10 feet (3 meters)

or less, (Figure 2).

6b. Straight vent sections installed

with a slope must be supported

with at least one bracket per section.

6c. Elbows and Tees are suciently

supported when a bracket is xed

at the female end of the connected

straight section as described in 6b.

7. To make installation easier, it is

recommended to rotate the joints slightly

when assembling them. If needed, only

use water to lubricate the gaskets for easier

assembling.

8. Make sure that the load of the vent system is

not supported by the appliance.

9. Because of the elongation at high exhaust

temperatures the pipes must be inserted and

joined according to Figure 6. The allowed

length of elongation must be between ¼” and

5/8” (7.5 - 15 mm) per joint.

10. Continue with either the Horizontal

Termination Section or the Vertical Termination

section, depending on your installation.

Figure 6

1/4" - 5/8"

(7.5mm - 15mm)

Figure 5

12"

1/4"

Min

HORIZONTAL TERMINATIONS:

For PolyPro vent systems ending in a

horizontal termination, follow these steps:

1. Determine your location through the wall.

Verify your location meets the requirements

for horizontal terminations as described

in all applicable building codes and your

appliance’s installation instructions. In the US

be sure to comply with NFPA 54/ANSI Z223.1

National Fuel Gas Code or the International

Fuel Gas Code. In Canada, comply with CAN /

CGA-B149.1 Natural Gas Installation Code or

CAN /CGA -149.2 Propane Installation Code.

2. Determine which horizontal termination

you will use. PolyPro oers three dierent

terminations to handle dierent installation

situations: concentric Horizontal Termination,

the Twin Pipe Termination, and the Single

Horizontal Termination.

The concentric Horizontal Termination

(Figure 7) is specically designed and

engineered to handle wind loads and

backpressure. Refer to Table A for the size of

the hole in the wall needed for the dierent

diameter terminations.

The Twin Pipe Termination is a side-by-side

(collinear) vent system for the exhaust and

the air inlet (Figure 8). For the Twin Pipe

Figure 7

INTERIOR

WALL PLATE

EXTERIOR

WALL PLATE

CONCENTRIC

HORIZONTAL

TERMINATION

Table A

PolyPro Wall Penetration Sizing Table

VENT DIAMETER

Termination 2" 3" 4"

CONCENTRIC HORIZONTAL

(ROUND OR SQUARE)

4 ⁄"

105mm

5 ⁄"

130mm

6 ⁄"

155mm

TWIN PIPE HORIZONTAL

CLASS IIB

7 ⁄" x 2⁄"

187mm x 65mm

8 ⁄" x 3⁄"

212 x 85mm

9" x 4⁄"

228 x 100mm

TWIN PIPE HORIZONTAL

CLASS IIC

8" x 3"

200 x 77mm

8 ⁄" x 3⁄"

225 x 98mm

9 ⁄" x 4 ⁄"

238 x 112mm

SINGLE HORIZONTAL (ROUND OR SQUARE)

CLASS IIB \ CLASS IIC

2⁄" / 3"

65mm / 77mm

3 ⁄" / 3 ⁄"

85mm / 98mm

4" / 4 ⁄ "

100mm / 112mm

Figure 8

POSITIONED

HORIZONTALLY

POSITIONED

VERTICALLY

Pipe Termination. Refer to Table A for hole

sizes. Remember to maintain the necessary

clearance to combustibles. The Twin Pipe

Termination can be positioned in either a

horizontal (side-by-side) or vertical (one pipe

above the other) orientation (Figure 8).

The Single Horizontal Termination can be

used for the appliance’s exhaust if a vented

air inlet is not required for your appliance

(Figure 9). Refer to Table A for the necessary

hole size through the wall. Remember

to maintain the necessary clearance to

combustibles.

3. Once you have determined the type of wall

termination, selected the location and cut the

hole as described, then install your horizontal

termination as follows:

Concentric Horizontal Termination: Slide

the Exterior Wall Plate over the exterior end

of the Concentric Horizontal Termination

until it stops. From the outside, slide the

Termination through the wall penetration

until the Exterior Wall Plate reaches the wall

(Figure 10). The Exterior Wall Plate helps to

hold the Termination in place and ensures

the Concentric Horizontal Termination is

in the correct position for proper wind

performance. If needed for your installation,

the interior end of the Concentric Horizontal

Termination can be cut to length, as long as it

extends through the wall. Be sure to remove

any burrs after cutting. The Concentric

Horizontal Termination must be installed

either level or with a maximum downward

pitch of 1/8” per foot (10 mm per meter) away

from the appliance. To prevent rainwater

from entering the air inlet system, ensure

the Termination is installed correct side up

(Figure 7). Using RTV silicone sealant, mount

and seal the Exterior Wall Plate to the wall

and secure it with the hardware provided. On

the interior wall, slide the Interior Wall Plate

over the Concentric Horizontal Termination

and secure to the interior wall with supplied

Figure 9

INTERIOR

WALL PLATE

EXTERIOR

WALL PLATE

SINGLE

HORIZONTAL

TERMINATION

GASKET

Figure 10

APPLIANCE

CONCENTRIC

HORIZONTAL

TERMINATION

COLLINEAR

ADAPTER

EXHAUST

AIR INLET

Termination, the penetration must be either

two holes for each of the exhaust and air

inlet pipes or a rectangular opening to

handle both. Clearance to combustibles is

only required on the exhaust side of the Twin

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