GE JV347IFWW, Руководство пользователя и инструкции по установке, Страница: 7 / 14

7
DUCT EQUIVALENT NUMBER
PIECES LENGTH x USED = TOTAL
3
1
⁄
4
″ x 10 ″ 1 Ft. x ( ) = Ft.
Rect .,
straight
7
″
Round, 1 Ft. x ( ) = Ft.
straight
6 ″ Round, 1 Ft. x ( ) = Ft.
straight
3
1
⁄
4
″
x 10
″
14 Ft. x ( ) = Ft.
Rect . 90°
elbow
3
1
⁄
4
″ x 10 ″ 8 Ft. x ( ) = Ft.
Rect . 45°
elbow
3
1
⁄
4
″ x 10 ″ 33 Ft. x ( ) = Ft.
Rect . 90°
flat elbow
3
1
⁄
4
″ x 10 ″ 24 Ft. x ( ) = Ft.
Rect . (18 ft. w/o
wall cap damper) x ( ) = Ft.
with
damper
3
1
⁄
4
″ x 10 ″ 2 Ft. x ( ) = Ft.
Rect . to
6
″
round
transition
3
1
⁄
4
″
x 10
″
4 Ft. x ( ) = Ft.
Rect . to
6 ″ round
transition
90° elbow
6 ″ Round, 25 Ft. x ( ) = Ft.
90° elbow
6 ″ Round, 16 Ft. x ( ) = Ft.
45° elbow
Subtotal column 1 = Ft.
WORKSHEET—CALCULATE TOTAL EQUIVALENT DUCTWORK LENGTH
DUCT EQUIVALENT NUMBER
PIECES LENGTH X USED = TOTAL
6 ″ Round 53 Ft. x ( ) = Ft.
wall cap (39 ft. w/o
with damper) x ( ) = Ft.
damper
6 ″ Round 72 Ft. x ( ) = Ft.
roof cap
6 ″ Round 3 Ft. x ( ) = Ft.
to
3
1
⁄
4
″ x 10 ″
rect .
transition
6
″
Round 9 Ft. x ( ) = Ft.
to
3
1
⁄
4
″ x 10 ″
rect .
transition
90° elbow
7 ″ Round, 14 Ft. x ( ) = Ft.
90° elbow
7
″
Round, 9 Ft. x ( ) = Ft.
45° elbow
7 ″ Round 28 Ft. x ( ) = Ft.
wall cap ( 21 ft. w/o
with damper) x ( ) = Ft.
damper
7
″ Round 39 Ft. x ( ) = Ft.
roof cap
7
″
Round 1 Ft. x ( ) = Ft.
to
3
1
⁄
4
″ x 10 ″
rect .
transition
7 ″ Round 5 Ft. x ( ) = Ft.
to
3
1
⁄
4
″ x 10 ″
rect .
transition,
90° elbow
Subtotal column 2 = Ft.
Subtotal column 1 = Ft.
Total ductwork = Ft.
Installation Instructions
MAXIMUM DUCT LENGTH: For satisfactory air movement,
the total duct length of a 3
1
⁄
4
″ x 10 ″ rectangular, 7 ″ diameter
round duct should not exceed 65 equivalent feet.
NOTE: Any home ventilation system, such as a ventilation
hood, may interrupt the proper flow of combustion air and
exhaust required by fireplaces, gas furnaces, gas water
heaters and other naturally vented systems . To minimize the
chance of interruption of such naturally vented systems, follow
the heating equipment manufacturer’s guidelines and safety
standards such as those published by NFPA and ASHRAE .
When applicable, install any makeup (replacement) air system
in accordance with local building code requirements . Visit
GEAppliances.com for available makeup air solutions .