Valcourt L48, Инструкция по установке и руководство пользователя

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Page 29 Installation Instructions and Owner’s Manual - L48
ENGLISH
Typical Basement Installation
12” (30.5cm) ABOVE
GRADE OR AVERAGE
EXPECTED SNOW LEVEL
Figure 41
To Use the Vent Graph
1. Determine the height of the center of the
horizontal vent pipe. Using this dimension
on the Sidewall Vent Graph, locate the
point it intersects with the slanted graph
line.
2. From the point of this intersection, draw
a vertical line to the bottom of the graph.
3. Select the indicated dimension, and
position the fireplace in accordance with
same.
EXAMPLE A:
If the vertical dimension from the floor of the
fireplace is 32 feet, the horizontal run to the
outer wall flange must not exceed 5 feet.
EXAMPLE B:
If the vertical dimension from the floor of the
fireplace is 24 feet, the horizontal run to the
outer wall flange must not exceed 10 feet.
EXAMPLE C:
If the horizontal run to the outer wall flange is
17 feet, the vertical dimension from the floor
of the fireplace to the center of the termination
must not be less than 7 feet 6 inches.
SPECIAL NOTE: For each 45° elbow installed
in the horizontal run, the length of the horizontal
run MUST be reduced by 18 inches. Reduce
by 3 feet for every 90° elbow. This does not
apply if the 45° elbows are installed on the
vertical part of the vent system.
Example: According to the chart the maximum
horizontal vent length is 20 feet and if two 45°
elbows are required in the horizontal vent it
must be reduced to 17 feet.
The maximum number of 45° elbows permitted
per side wall installation is two. These elbows
can be installed in either the vertical or
horizontal run.
The maximum number of 90° elbows in a vent
run is three.
Acceptable vertical and horizontal vent run.
(40' maximum vertical and 20' maximum horizontal)
Unacceptable vertical and horizontal vent run.
See text above for Examples A, B and C.