Lennox Hearth Gas Stove - Manual (Page 11)

11
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
v
ent
i
nstallation
Venting:
The Vision™ gas stove has been tested and listed as a direct
vent heater system by OMNI-Test Laboratories, Beaverton,
Oregon and is recommended for use with Security™ Secure
Vent™ pipe*.
Important:
• Read all instructions carefully before starting the instal-
lation. Failure to follow these instructions may create a
fire or other safety hazard, and will void the warranty.
Be sure to check for specific clearances to combustible
requirements on page 8. Do not extend the venting sys-
tem vertically or horizontally in excess of the distance
prescribed on page 14. Consult your local building codes
before beginning the installation.
• Always maintain the proper air spaces between the
vent pipe and nearby combustibles to prevent a fire
hazard. Do not fill air spaces with insulation. Be sure to
check the vent termination clearance requirements from
decks, windows, soffits, gas regulators, air supply inlets,
and public walkways, as specified in these installation
instructions on page 15 and local building codes.
• This gas stove and vent system must be vented directly
to the outside of the building, and never be attached to
a chimney serving a separate solid fuel or gas-burning
appliance. Each direct vent gas appliance must use its
own separate vent system. Common vent systems are
prohibited.
• The Vision gas stove is recommended for use with
Security™ Secure Vent pipe*. The appliances, and vent
manufacturers warranties will be voided, and serious fire,
health, or other safety hazards may result from any of the
following actions:
• Installation of any damaged direct vent compo-
nent.
• Unauthorized modification of the direct vent sys-
tem.
• Installation of any vent component part not approved
or manufactured by the approved vent manufac-
turer.
• Installation other than as instructed by Lennox Hearth
Products and vent manufacturers instructions.
r
esidential and
m
obile
h
ome
i
nstallations
:
These are the minimum pieces required. Other parts may
be required for your particular installation.
Minimum Components for Horizontal Installation:
Horizontal Termination Kit which includes:
• 1 6-5/8”x 6” Black Pipe
• 1 Riser Vent Terminal
• 1 Wall Penetration Heat Shield (Wall Thimble) (2 pcs)
• 1 Decorative Wall Trim (black)
• 1 Tube Mill-Pac
• Screws
Optional Components:
• 45º Elbow
• Vinyl Siding Shield for Riser Vent Terminal
• Vent Guard
• Snorkel Termination (36”)
• Snorkel Termination (14”)
• Wall Penetration Heat Shield
Vent Considerations
Twist-lock procedure: Four indentations on female ends of
pipes and fittings are designed to slide straight onto male
ends of adjacent pipes and fittings by orienting the four pipe
indentations so they match and slide into the four entry slots.
Push pipe sections completely together, then twist-lock one
section clockwise approximately one-quarter turn until the
two sections are fully locked. The female locking lugs will not
be visible from the outside on the pipe or fittings. They may
be located by examining the inside of the female ends.
Supports: Horizontal runs of vent must be supported every
3 feet. Wall straps are available for this purpose.
Pipe Sealing: If Simpson Dura-Vent pipe is used, the pipe
must be sealed as follows: seal both the inner and outer
pipes with a high temperature silicone sealant rated for at
least 600º F (commonly know as “RTV”). Run a 1/8” bead
of silicone around outside of male end of outer sleeve. Run
a 1/8” bead of silicone about 1/4” from the end of the male
inner pipe, which is found in the pipe to be attached above.
Twist-lock the pipes or fittings together.
Female Locking
Sealant
Male
Locking
Lugs
Figure 14