- ページ 12

産業機器 CopperSmith CSPI-30のPDF 取付説明書をオンラインで閲覧またはダウンロードできます。CopperSmith CSPI-30 13 ページ。

ページを印刷する
e.
Hoods with Optional Top or Back Venting
Several range hood models provide the option of venting the exhaust air out the top or back side of the range
hood. On some models, this is accomplished by redirecting the motor/blower unit to exhaust through the top,
back or the recirculation position. On other models, the duct pipe is attached directly to the start collar which
can be attached to the top side or back side of the hood. For more details on this aspect of the installation, see
the detailed installation instructions packaged with each unit.
IMPORTANT: On models with multiple venting ports, the open holes/slots around the unused venting port(s)
MUST BE SEALED with aluminum foil metal duct tape. Otherwise, exhaust air and smoke will be vented
through the unused vent knockout's holes/slots. On models featuring the recirculation option, if this option is
NOT used, the vent port inside the hood should also be taped over with aluminum foil metal duct tape.
UNUSED PORTS SHOULD BE TAPED BEFORE THE RANGE HOOD IS MOUNTED TO THE WALL OR
CABINET.
f.
Liners Using Optional Vent Transition Accessory
On installations using the optional vent transition accessory to transition to 10" round duct, all bottom edges of
the transition should be taped to the liner with 2 – 3 layers of aluminum foil metal duct tape.
g.
Duct Sizing Chart and Area Calculations
Ventilator Discharge Port
Types & Sizes
6" Diameter, Round
7" Diameter, Round
8" Diameter, Round
10" Diameter, Round
3.25" x 10" Rectangular
Calculating Square Inches of Various Duct Sizes & Types
Radius x Radius x
The "radius" is one half the diameter of a round duct
e.g., ½ of a 10" round duct is 5". 3.1416 is "Pi", the
"constant" used when calculating the area of a circle.
Roof cap examples. Choose by using the chart above and measuring the area of the air exit
opening. (Figure 1 is smallest option, should only ever be used with 3.25" x 10" duct).
Fig. 1
Revised 05/15/20
Duct Type Required
28.3"
6" Round Metal Duct
38.5"
7" Round Metal Duct
50.25"
8" Round Metal Duct or
6" x 9" Rectangular Metal Duct
78.5"
10" Round Metal Duct
32.5"
3.25" x 10" Rectangular Metal Duct
ROUND DUCT
3.1416
=
Area (Sq. Inches)
(in Square Inches)
Width
x
Opening 100 sq.in.
Fig. 2
Diameter 9 3/4"
Minimum Discharge Size
Duct Size
of Roofcap or Wallcap
Outside Opening
28.3"
38.5"
50.25"
50.25"
54"
78.5"
32.5"
Depth
=
Area (Sq. Inches)
28.3"
38.5"
54"
78.5"
32.5"
12