Installation Instructions

Model VP
L-Vent / Vent System for Pellet Burning Appliances
1. VENT SYSTEM PARTS AND NUMBERS
Figs. 1,2, 3 and 4 show the names and locations of commonly used Model VP
parts. On these and other figures which are present throughout this docu-
ment, only the last portion of the part number is used. The complete part
number is prefixed with I.D. size, system identifier and part identifier.
For Example:
Model VP System
Inside Diameter - - 4 VP-TS - Standard Tee
Model VP System
Inside Diameter - - 4 VP-60 - 60” Pipe Length
2. SIZES AND APPLICATIONS
Selkirk Model VP L-Vent is manufactured in 3” and 4” I.D. sizes.
L-Vents installed in accordance with these instructions comply with National
Safety Standards such as NFPA 211.
The Model VP L-Vent System may be used for venting gas or oil fired
appliances listed for use with Type L-Vent in addition to Listed pellet burning
appliances.
3. MODEL VP SAFETY CERTIFICATION
Model VP has been tested and listed by Underwriters Laboratories, Inc. in
accordance with UL641, the Standard for Type L Low Temperature Venting
Systems, in addition to certain other applicable requirements from UL103, the
Standard for Residential Type and Building Heating Appliance Chimneys. Model
VP has also been tested and listed to Canadian Standards ULC-S609 for Low
Temperature Vents Type L and ULC/ORD-C441 for Pellet Vents. Model VP is
rated for flue temperatures up to 570deg F.
Read all instructions before beginning the installation. Failure to install this
system in accordance with the instructions will void manufacturer’s warranty and
may result in an unsafe installation. Keep these instructions for future references.
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 THIS DOUBLE WALL VENT SYSTEM BE
INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS.
5. ENCLOSURES
The vent system should be enclosed in occupied areas, closets, storage rooms,
and accessible attics. Enclosures may be built of ordinary drywall or plywood
at the required minimum AIRSPACE CLEARANCE (See Table 1). There are no
special parts to maintain clearance to inside surfaces of walls or enclosures.
Therefore, the vent installer should take all necessary precautions to assure
that this minimum airspace is maintained.
In unoccupied attics, it is very important to be sure that blown-in or other
insulation does not come in contact with the vent system. A full enclosure in
the attic should extend to the roof. However, it need only be finished well
enough to keep insulation and stored furnishings away from the vent system.
NOTE - Enclosures maintaining the minimum airspace clearance are especially
important in attics insulated with CELLULOSE type insulation which may be
composed of old newspapers and other cellulose materials which are very
susceptible to ignition of a fire.
A vent system enclosure is also recommended for any exterior systems and
portions extending through unheated areas. This enclosure is helpful in reducing
internal condensation, residual buildup from products of combustion and metal
deterioration. Also the enclosure, by protecting the vent from cold outdoor
temperatures, may improve draft and appliance operation. At the upper end of
an outdoor enclosure the vent system should be finished off with a flashing,
storm collar and vent cap as described elsewhere in these instructions.
Regardless of the benefits of the exterior enclosure, better vent and appliance
operation will be obtained if the vent is located entirely inside the heated portion
of the building (except of course for the part above the roof).
Installation Instructions
Covering - General Installation Instructions & Owner’s Maintenance Guide
8. VENT SIZE, HEIGHT AND TERMINATION
Before beginning installation of the vent system, be sure that the selected
size is adequate for the appliance and the selected height of the Model VP
termination is sufficient to conform to building code requirements and the
termination height guidelines given elsewhere in these instructions.
6. YOUR CHOICE OF HEATING APPLIANCE
There are three important rules for selecting a gas or pellet burning appliance.
FIRST: Look for a label or nameplate attached to the appliance which bears
the mark of a well known safety testing organization, such as Underwriters
Laboratories, American Gas Association, etc.
SECOND: Don’t buy an appliance which is larger than necessary.
THIRD: Look or ask for complete installation, operating and maintenance
instructions for the appliance. If you can’t get these, buy one that includes all
these very important details.
7. APPLIANCE SAFETY
Be sure to follow all details of the instructions provided with your appliance.
Especially note and follow recommended installation clearances and operating
instructions.
Table 1 gives the proper framing dimensions, which in turn define the proper
clearance. Wherever these instructions illustrate the use of a required spacer,
thimble or firestop, the purpose of the part is to maintain and assure the
proper clearance.
4. MINIMUM CLEARANCE--AIRSPACE ONLY
All Model VP flue gas carrying parts are marked with clearance information as
follows:
MAINTAIN MINIMUM 1” AIRSPACE CLEARANCE TO COMBUSTIBLES in the
U.S. and MINIMUM 3” AIRSPACE CLEARANCE in Canada.
“Combustibles” include framing lumber, drywall, plaster, plywood, paneling
and other building materials.
In addition to the airspace clearance specification, each section of vent is
marked with an “UP” arrow indicating the intended direction of flow (i.e. end
which should be oriented AWAY from the appliance). Auxiliary parts such
as combination Ceiling Support/Firestop Spacers, Trim Plates, Flashings and
Wall Thimble outer shields are intended to be attached directly to the framing
or to ceilings, floors, or walls in accordance with their respective instructions.
These parts, which are installed in contact with wood or other combustibles,
are designed and tested to assure that they do not overheat at points of
contact.
Remember that clearance requirement is AIR SPACE ONLY.
LISTED
Failure to follow the installation instructions could cause
FIRE, CARBON MONOXIDE POISONING, OR DEATH. If you
are unsure of installation requirements, call the telephone
number listed on these instructions, or visit our website
www.selkirkcorp.com.
WARNING
Table 1
Minimum Clearance and Framing Dimensions
Vent Size
3”
4”
1”
1”
9-1/2” x 9-1/2”
10-1/2” x 10-1/2”
3”
3”
9-1/2” x 9-1/2”
10-1/2” x 10-1/2”
Clearance
(US)
Framing
(US)
Clearance
(Canada)
Framing
(Canada)