GE PGP989, Руководство пользователя и инструкции по установке

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20
Installation Instructions
DuCtWorK CAlCulAtIonS
Calculate total Equivalent Ductwork length
Equivalent Number Equivalent
Duct Pieces Length* x Used = Length
6” round
straight 1 ft . x ( )
†
= ft .
3
1
⁄
4
” x 10"
straight 1 ft . x ( )
†
= ft .
6”, 90°
elbow 15 ft . x ( ) = ft .
6”, 45°
elbow 9 ft . x ( ) = ft .
24” max .
flexible
metal offset
adapter 34 ft . x ( ) = ft .
3
1
⁄
4
” x 10”
90° elbow 16 ft . x ( ) = ft .
3
1
⁄
4
” x 10”
45° elbow 5 ft . x ( ) = ft .
3
1
⁄
4
” x 10”
90° flat elbow 18 ft . x ( ) = ft .
6” round
to 3
1
⁄
4
” x 10”
transition 7 ft . x ( ) = ft .
Subtotal Column 1 = ft .
* Equivalent lengths of duct pieces are based on actual
tests and reflect requirements for good venting
performance with any downdraft cooktop .
† Measure and list feet of straight duct used . Count and
list the quantity of all other duct pieces for the “Number
Used” of each type .
ImPortAnt:
For maximum efficiency, use the shortest and straightest
duct run possible, with as few fittings as possible .
For satisfactory performance, the duct run should not
exceed 100 feet equivalent length.
Venting performance is improved by using larger
diameter duct .
Equivalent Number Equivalent
Duct Pieces Length* x Used = Length
6” round
to 3
1
⁄
4
” x 10”
transition
90° elbow 20 ft . x ( ) = ft .
3
1
⁄
4
” x 10”
to 6” round
transition 5 ft . x ( ) = ft .
3
1
⁄
4
” x 10”
to 6” round
transition
90° elbow 12 ft . x ( ) = ft .
6” round
wall cap
with damper 21 ft . x ( ) = ft .
3
1
⁄
4
” x 10”
wall cap
with damper 27 ft . x ( ) = ft .
6” round
roof cap 20 ft . x ( ) = ft .
6” round
roof vent 24 ft . x ( ) = ft .
Subtotal Column 2 = ft .
Subtotal Column 1 = ft .
totAl Du CtWorK = ft .
Should not exceed 100 fee t .
Do not use flexible plastic ducting.
Vent installation should not exceed 100 feet
equivalent length .