Mountingheights - Jenn-Air XT7036ADS Installation Manual

INSTALLATION
MOUNTINGHEIGHTS
Min 24"-M_}x 32"
Minimummounting heightbetween rangetop
to hoodbottomshouldbe no lessthan24".
Maximum mounting height should be no
higher than 32".
It is important to install the hood at the
proper mounting height. Hoods mounted too
low could result in heat damage and fire
hazard; while hoods mounted too high will be
hard to reach and will lose performance and
efficiency.
If available, also refer to range manufacturer's
height clearance requirements and recom-
mended hood mounting height above range.
DUCTING
A minimum of 8" round or 3-1/4" x lO"rectangular
duct must be used to maintain maximum air flow
efficiency.
Always use rigid-type metal ducts only.
Flexibleducts could restrict air flow by up to 50%.
Also use calculation (on right) to compute total
available duct run when using elbows, transitions
and caps.
ALWAYS, w hen possible, reduce the number of
transitions and turns. If long duct run is required,
increase duct size. If a reducer is used, install a
long reducer instead of a pancake reducer. Reduce
duct size as far away from opening as possible.
If turns or transitions are required:
Install as far away from opening and as far
apart, between 2, as possible.
DuctRunCalculation:
Maximum run
100 FT
Deduct:
each 90 Elbow used 15 FT
each 45 elbow used 9 FT
Side WallCap w/damper 30 FT
RoofCap 30 FT
e,g.- I roof cap, 2x90 elbows, 1 45 elbow used;
=30' + 30' + 9' =69' used, 31' availablefor straight duct runs,