ZV850, ZV855

31-10725 Rev. 6 
DUCT FITTINGS
This Hood Must Use an
6” Round Duct. It Can
Transition to 3-1/4” x 10”
or 3-1/4” x 12” Duct.
8VHWKLVFKDUWWRFRPSXWHPD[LPXP
permissible lengths for duct runs to
outdoors.
NOTE: 'RQRWH[FHHGPD[LPXP
permissible equivalent lengths!
0D[LPXPGXFWOHQJWK
IRRWIRUUDQJHKRRGV
)OH[LEOHGXFWLQJ
,IIOH[LEOHPHWDOGXFWLQJLVXVHGDOO
the equivalent feet values in the
WDEOHVKRXOGEHGRXEOHG7KHIOH[LEOH
metal duct should be straight and
VPRRWKDQGH[WHQGHGDVPXFKDV
possible.
'2127XVHIOH[LEOHSODVWLFGXFWLQJ
NOTE: $Q\KRPHYHQWLODWLRQ
V\VWHPVXFKDVDYHQWLODWLRQKRRG
may interrupt the proper flow of
FRPEXVWLRQDLUDQGH[KDXVWUHTXLUHG
E\ILUHSODFHVJDVIXUQDFHVJDV
water heaters and other naturally
vented systems.
To minimize the chance of
interruption of such naturally
YHQWHGV\VWHPVIROORZWKHKHDWLQJ
equipment manufacturer’s guidelines
and safety standards such as those
SXEOLVKHGE\1)3$DQG$6+5$(
:KHQDSSOLFDEOHLQVWDOODQ\
makeup (replacement) air system in
accordance with local building code
requirements.
Visit Monogram.com for available
makeup air solutions.
Installation Preparation
Duct Piece Dimensions
Equivalent
Length*
Quantity
Used
Total
Equivalent
Length
5RXQGVWUDLJKW 1 ft.
(per foot length)
´[´VWUDLJKW 1 ft.
(per foot length)
HOERZ 12 ft.
HOERZ IW
´[´
»´[´
HOERZ
14 ft.
IW
´[´
´[´
HOERZ
8 ft.
IW
´[´
´[´
IODWHOERZ
33 ft.
24 ft.
´URXQGWR
rectangular
2 ft.
Rectangular to 8”
round
2 ft.
´URXQGWR´[´
WUDQVLWLRQHOERZ
4 ft.
4 ft.
´[´
»´[´
UHFWDQJXODUWR´URXQG
WUDQVLWLRQHOERZ
4 ft.
4 ft.
Round wall cap
with damper
24 ft.
´[´
»´[´
rectangular wall cap
with damper
24 ft.
18 ft.
Round roof cap 33 ft
$FWXDOOHQJWKRIVWUDLJKWGXFWSOXVGXFWILWWLQJHTXLYDOHQW(TXLYDOHQW
length of duct pieces are based on actual tests conducted by
*($SSOLDQFHV(YDOXDWLRQ(QJLQHHULQJDQGUHIOHFWUHTXLUHPHQWVIRU
good venting performance with any ventilation hood.
Total Duct Run