Product Overview

APPLICATION
Z-VENT
™
is a factory built, engineered AL 29-4C special
gas venting system suitable for venting positive or negative
pressure residential and commercial gas fired heating
equipment. The maximum allowable continuous flue gas
temperature for Model SVE IV is 550° F(288°C ).
Model SVE IV Single Wall
3 to 24in. diameter. For use with Category II, III and IV
gas-burning appliances only, where the maximum vent
gas temperature at the appliance outlet does not exceed
550°F. When the vent system is installed in an unenclosed
horizontal installation, a minimum clearance to combustible
construction of 3 in. must be maintained. When the vent
system is installed in an unenclosed vertical installation,
a minimum clearance to combustible construction of 3 in.
must be maintained. When the vent system is installed in
an enclosed vertical installation, a minimum clearance
to combustible construction of 6in. must be maintained.
See manufacturer’s installation instructions and appliance
manufacturer’s instructions for recommended clearances at
other vent temperatures.
Model SVE IV Double Wall
3 to 24in. diameter. For use with Category II, III and IV
gas burning appliances only, where the maximum vent
gas temperature at the appliance outlet does not exceed
550°F. When the vent system is installed in an unenclosed
horizontal installation, a minimum clearance to combustible
construction of 2 in. must be maintained. When the vent
system is installed in an unenclosed vertical installation,
a minimum clearance to combustible construction of 2in.
must be maintained. When the vent system is installed in
an enclosed vertical installation, a minimum clearance
to combustible construction of 6in. must be maintained.
See manufacturer’s installation instructions and appliance
manufacturer’s instructions for recommended clearances at
other vent temperatures.
CONSTRUCTION
The inner flue is manufactured from superferritic
AL 29-4C
®
stainless steel. The AL 29-4C
®
alloy shows
excellent resistance to chloride ion pitting, crevice corrosion
and stress corrosion cracking making it the ideal choice
for battling the effects of high temperature flue gases and
corrosive condensate from high efficiency gas heating
equipment. A unique built-in gasket system provides air and
water tight connections with no sealant required. Leakage
tested to 2½ times the UL listed pressure rating of 8” water
column.
The double wall system has a one inch air space between
the vent walls providing an insulation factor. This reduces
clearance to combustibles and helps to maintain stack
temperature, an important feature in the safe venting of
modern high efficiency heating equipment. The outer wall
is fabricated from Type 304 stainless steel. Fusion welded
components provide superior fit, reduced turbulence and
flow resistance. Also eliminated are crevices and other spots
where condensation can collect and corrode the vent.
PATENTED SEALING SYSTEM
Z-VENT
™
components are supplied with factory installed,
patented (US patent 6-523-865), self-sealing gaskets. The
gaskets special design along with precision engineered
close tolerance construction ensure an air and water tight
fit leakage tested to 2½ times the UL pressure rating of 8”
W.C.
APPROVAL
3” to 24” UL tested and listed to UL1738/S636 Venting
Systems for Gas-Burning Appliances, Category II, III and IV.
File MH 18505
Please note: Different manufacturers have different joint
systems and adhesives. Do not mix pipe, fittings or joining
methods from different manufacturers without an approved
adapter; as doing so will void any and all warranties.
Email: [e-mail]
Website: www.z-flex.com
Z-FLEX
®
U.S.A.
20 Commerce Park North, Bedford, NH 03110-6911
Tel: [phone] Fax: [phone] Toll Free: 800.654.5600
CANADA
452 Attwell Drive, Etobicoke, ON M9W 5C3
Tel: [phone] Fax: [phone]
rev 04.10
Z-Vent
®
Commercial Systems
®
Technical Data Sheet