Quadra-Fire Garnet, Инструкция по эксплуатации

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GARNET DIRECT VENT ROOM HEATER
250-6443B October 7, 2003 Page 27
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GARNET DIRECT VENT ROOM HEATER
250-6443B October 7, 2003 Page 28
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Step 7.
Continue to assemble pipe sections until the height
of the vent cap (H) (Fig. 15) meets the minimum
code requirements as outlined in the current CAN/
CGA-B149 Installation Codes (in Canada), the
National Fuel Gas Code NFPA 54/ANSI Z223.1
(in USA), or local codes. Note that for steep roof
pitches, the vent height must be increased. See
Table 1 below. In high wind conditions, nearby trees
adjoining rooflines, steep pitched roofs, and other
similar factors can result in poor draft, or down
drafting. In these cases increasing the vent height
may solve this problem.
VERTICAL INSTALLATION
Dimension "H"
Obtained From
Table 1
TABLE 1
MINIMUM HEIGHT
ROOF PITCH
FEET METERS
Flat to 7/12 1 0.30
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 12/12 to 14/12 5 1.52
Over 14/12 to 16/12 6 1.83
Over 16/12 to 18/12 7 2.13
Over 18/12 to 20/12 7.5 2.29
Over 20/12 to 21/12 8 2.44
H
The height of the vent cap must
meet the minimum building code
requirements described above.
FIG. 15
Step 8.
Twist-lock the vent cap and seal.
Note:
(1) For multi-story vertical installations, a ceiling
firestop (SDV part #963) is required at the
second floor, and any subsequent floors (Fig.
16). The opening should be framed to 10” x 10”
(25.4cm x 25.4cm) inside dimensions, in the
same manner as shown in Fig. 13 , page 26 .
(2) Any occupied areas above the first floor,
including closets and storage spaces, which the
vertical vent passed through must be enclosed.
The enclosure may be framed and sheetrocked
with standard construction materials; however,
refer to these installation instructions for the
minimum allowable clearance between the
outside of the vent pipe and the combustible
surfaces of the enclosure. Do not fill any of the
required air space with insulation.
MIN. 1' CLEARANCE
CEILING FIRESTOP
NAILS
MIN. 1' CLEARANCE
MIN. 1' CLEARANCE
MIN. 1' CLEARANCE
FIG. 16
USING GS SERIES PIPE
(cont'd.)