Step 2. Routing Gas Line; Step 3. Install The Venting System; Vertical Termination Systems - Lennox Hearth Products LSS-35CN Installation Instructions Manual

Step 2. ROUTING GAS LINE

Route a 1/2" (13 mm) gas line along the inside
of the right side framing as shown in Figure 13 .
Gas lines must be routed, constructed and
made of materials that are in strict accordance
with local codes and regulations.
All appliances are factory-equipped with a flex-
ible gas line connector and 1/2" inch shutoff
valve. (See step 5 on page 21).
Figure 13
Step 3. INSTALL THE VENT SYSTEM
General Information
These instructions should be used as a guide-
line and do not supersede local codes in any
way. Install vent according to local codes,
these instructions, the current National Fuel
Gas Code (ANSI-Z223.1) in the USA or the
current standards of CAN/CGA-B149.1 and -
B149.2 in Canada.
These fireplaces are designed, tested
and listed for operation and installation
with, and only with, Secure Vent™ Direct
Vent System Components, Secure Flex™
Flexible Vent Components manufactured
by Security Chimneys International and
Z-FLEX™ Model GA Venting Systems listed
to UL1777 and ULCS635 manufactured by
Flexmaster Canada Limited.
These approved vent system components
are labeled for identification.
use any other manufacturer's vent
components with these appliances.
Massachusetts And New York City, NY
Requirements
These appliances are approved for installation
in the following USA locations listed in the
following:
Massachusetts:
Installation of these fireplaces are approved
for installation in the US state of Massachu-
setts if the following additional requirements
are met-
• Installation and repair must be done by a
plumber or gas fitter licensed in the Common-
wealth of Massachusetts.
• The flexible gas line connector used shall not
exceed 36 inches (92 centimeters) in length.
• The individual manual shut-off must be a T-
handle type valve.
New York City, NY:
Installation of these fireplaces are approved
for installation in New Your City in the US state
of New York.
Massachusetts Horizontal Vent Requirements
In the Commonwealth of Massachusetts, hori-
zontal terminations installed less than seven
(7) feet above the finished grade must comply
with the following additional requirements:
• A hard wired carbon monoxide detector with
an alarm and battery back-up must be installed
on the floor level where the gas fireplace is
installed. The carbon monoxide detector must
comply with NFPA 720, be ANSI/UL 2034
listed and be ISA certified.
• A metal or plastic identification plate must be
permanently mounted to the exterior of the
building at a minimum height of eight (8) feet
above grade and be directly in line with the
horizontal termination. The sign must read, in
print size no less than one-half (1/2) inch in
size, GAS VENT DIRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS.
These fireplaces must be vented directly
to the outside.
DO NOT
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Some local jurisdictions may require the gap
between the outer wall of the vent system
and the firestop penetration opening to be
sealed. This is not a requirement of the
listing of this product, however this gap may
be sealed using aluminized tape or similar
non-combustible material.
The vent system may not service multiple appli-
ances, and must never be connected to a flue
serving a solid fuel burning appliance. The vent
pipe is tested to be run inside an enclosing wall
(such as a chase). There is no requirement for
inspection openings in the enclosing wall at any
of the joints in the vent pipe.
Select Venting System - Horizontal or Vertical
With the appliance secured in framing, deter-
mine vent routing and identify the exterior
termination location. The following sections
describe vertical (roof) and horizontal (exte-
rior wall) vent applications. Refer to the sec-
tion relating to your installation. A list of
approved venting components is shown in
the two tables on page 27.
VERTICAL TERMINATION SYSTEMS (ROOF)
Figure 15, and Figures 25 through 27 on
pages 12 and 15 and their associated
Vertical Vent Tables illustrate the various verti-
cal venting configurations that are possible for
use with these appliances. Secure Vent pipe
applications are shown in these figures; Secure
Flex pipe may also be used. A Vertical Vent
Table summarizes each system's minimum
and maximum vertical and horizontal length
values that can be used to design and install the
vent components in a variety of applications.
Both these vertical vent systems terminate
through the roof. The minimum vent height
above the roof and/or adjacent walls is speci-
fied in ANSI Z223.1-(latest edition) (In Canada,
the current CAN-1 B149 installation code) by
major building codes. Always consult your
local codes for specific requirements. A gen-
eral guide to follow is the Gas Vent Rule (refer
to Figure 11 on page 9).
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