GE PVB94STSS - Manual (Page 10)

10
Installation Preparation
DUCT
FITTINGS
8VH[
duct. It can
transition to 6"
round.
Total
Equivalent Quantity Equivalent
Duct Piece Dimensions Length* Used Length
1 ft.
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  VWUDLJKW OHQJWK
1 ft.
  ø[ SHUIRRW
  VWUDLJKW OHQJWK
6"
90° elbow 12 ft.
6"
45° elbow 7 ft.

 ø[
90° elbow 14 ft.

 ø[
45° elbow 8 ft.

 ø[
  ƒÀDWHOERZ IW
6" round
  WRø[
transition 2 ft.
  ø[
round to 6"
transition 2 ft.
6" round to
  ø[
transition
90° elbow 4 ft.
  ø[WR
round transition
90° elbow 4 ft.
6" round
wall cap
with damper 24 ft.
  ø[
wall cap
with damper 24 ft.
6" round
roof cap 33 ft.
Total Duct Run
Use this chart to
compute maximum
permissible lengths
for duct runs to
outdoors.
NOTE: Do not exceed
maximum permissible
equivalent lengths!
$FWXDOOHQJWKRIVWUDLJKWGXFWSOXVGXFW¿WWLQJ
equivalent. Equivalent length of duct pieces is based
on actual tests conducted by GE Evaluation Engineering
DQGUHÀHFWUHTXLUHPHQWVIRUJRRGYHQWLQJSHUIRUPDQFH
with any downdraft cooktop.
Downdraft Vent: 100' maximum
equivalent length
Flexible ducting:
,IÀH[LEOHPHWDOGXFWLQJLVXVHGDOOWKH
equivalent feet values in the table should
EHGRXEOHG7KHÀH[LEOHPHWDOGXFWVKRXOG
be straight and smooth and extended as
much as possible.
'2127XVHÀH[LEOHSODVWLFGXFWLQJ
NOTE: Any home ventilation system, such
as a cooktop with a downdraft exhaust
PHFKDQLVPPD\LQWHUUXSWWKHSURSHUÀRZ
of combustion air and exhaust required by
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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,
LQVWDOODQ\PDNHXS UHSODFHPHQW DLUV\VWHP
in accordance with local building code
requirements. Visit GEAppliances.com for
available makeup air solutions.