Installation Instructions; Typical Installations - ICC EXCEL Installation And Maintenance Instructions Manual

INSTALLATION INSTRUCTIONS

ROUND SUPPORT (ERDS) & SQUARE SUPPORT (ESS)
If you are installing your chimney in an energy efficient house which has
sealed vapour barriers (e.g.: R2000 construction) we manufacture a
special round support so that you can maintain your vapour barrier
integrity. (See part ERDSI.) The ERDSI comes with its own set of
installation instructions.
Typical round and square support installations are shown in drawings 1
thru 4 on page 10. The clearance between the chimney and combustible
material must not be less than 2" except for areas protected by the
support. Do not fill this area with insulation. If the support is installed in a
cathedral ceiling, follow the instructions for Cathedral Ceilings.

TYPICAL INSTALLATIONS

If the support is installed in a ceiling with an attic directly above, the
support also acts as the attic radiation shield when installed with a
universal storm collar (ESC).
1. Locate the chimney in a convenient place as near as possible to the
appliance outlet. Cut and frame the holes in the floor ceiling and roof
where the chimney will pass. Refer to the technical specifications on
page 3 to determine the required rough opening for the support model
and size you are installing.
NOTE: Look Up - The round and square supports are designed to protect
the surrounding combustible materials and as a result they permit 1"
clearance from the chimney to combustible framing - in the area that they
protect. When these supports are installed in a roof truss insure that the
chimney has 2" clearance at the top of the truss. This may require you to
block out the support at the bottom. Another option is to install a support
extension (see page 13). Trim the support extension flush with the roof,
this will permit the chimney to pass within 1" of the truss.
2. From below, push the support into the framed hole. The support must
protrude at least 3" below the finished ceiling. Nail the support to the
framed joist using 8 - 3" spiral nails or # 8 X 1½" wood screws. Place
the Finish Collar around the support and fasten it to the ceiling using
the two screws provided. NOTE: If you are using a 6" square support
you may find it difficult to screw it in place because there is not much
room inside it. We have provided angle brackets with this support which
can be screwed to the outside of the support box and nailed to
surrounding framing as required. Use a minimum of four # 8 X ½" metal
screws per bracket. In some cases these brackets may need to be
trimmed (e.g.: to fit under a flashing).
EXCEL Canada
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