User guide

4
APPLICATION / LISTING
For specic information on application,
equivalent length of ttings, listings, etc.,
please reference M&G Duravent's installation
instructions for rigid pipe (Document L273).
M&G Duravent's PolyPro vent pipe should not
be installed in areas where the temperature
could exceed 230 F / 110 C.
PERMITS
Check with your local Building Ocial, Fire
Ocial, or other authority having jurisdiction
regarding permits, restrictions, and
installation inspections in your area.
MINIMUM CLEARANCE TO
COMBUSTIBLES
Refer to Table A for minimum clearances
to combustible materials. Use the values
shown in this table unless the appliance
manufacturer species otherwise. If there
is a conict between the two, the greater
clearance shall apply. It is prohibited to place
any type of insulation around the venting
system within these clearances.
Installation applications and
terminations shown in these
instructions must be approved by
the manufacturer of the appliance to
which it is applied. Use only listed M&G
DuraVent terminations with PolyPro
Venting.
CAUTION
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.
Table A
Minimum Clearance To Combustibles Table
VENT ORIENTATION
CLEARANCE
Horizontal Single Wall: 0" for ue temperatures up to 194*F (90*C).
1/4" (6mm) for ue temperatures up to 230*F (110*C).
Flex: N/A- NOT ALLOWED
Vertical Single Wall: 0"
Flex: 0" (Must be enclosed)
GENERAL INSTALLATION NOTES
Reference the Installation Instructions
provided with M&G Duravent's rigid pipe
(L273) for general instructions. PP Flex must
be enclosed, and used in conjunction with
rigid PP pipe to connect to an appliance.
• When used to conduct ue gases, PP ex
must not be installed at an angle greater
than 45 degrees from vertical. This will
ensure proper condensate ow back
towards the appliance outlet.
• PP Flex may be used to bring
combustion air into the appliance. In
these instances, pipe can be unenclosed
and oriented in a vertical or horizontal
position.
• PP ex must be treated carefully to
prevent damage when being installed
during low temperatures (<41°F, < 5 °C).
In colder weather, pre-warm ex prior
to installation. When relining, it may be
easier to insert ex from the bottom up