Mounting Heights; Ducting - Jenn-Air JXT8136ADS Installation Manual

MOUNTINGHEIGHTS & CLEARANCE
29"-4&65"
k
Min 24"-Ma× 32"
36"
/
*MIn 89.94"
*Nfa× 113,71"
Minimum mounting height betweenrangetop to
hood bottom shouldbe no less than 24":
Maximum mounting heightshould be no higher
than 32".
It is importantto install the hoodat the
proper mountingheight. Hoodsmounted too low
could result in heat damageand fire hazard;
while hoodsmountedtoo high will be hard to
reach and will lose performanceand efficiency.
If available, also refer to range manufacturer's
height clearance requirements and recommend-
ed hood mounting height above range.
Extensionkits availableto accommodate
10'-12' ceilings.
DUCTING
A minimum of 6" round or 3-1/4" x lO"rectangurar
duct must be used to maintain maximum air fbw
efficiency.
Always use rigid-type metar ducts only.
Fbxibb ducts couM restrict air flow by up to 50%.
ABo use calculation (on right) to compute tatar
availabb 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 from 6" to 7 or 8". If a reducer
is used, install a long reducer instead of a pancake
reducer. Reduceduct size as far away from open-
ing as possible.
If turns or transitions are required:
Install as far away from opening and as far
apart, between 2, as possible.
Duct Run Cabulation:
Maximumrun
6" or 3-1/4" x 10" duct
1O0FT
CalculatedLength:
each 90 Elbow used 15 FT
each 45 elbow used 9 FT
each 6" to 3/14 x 10"
transition used 1 FT
each 3/14 x 10" to 6"
transition used 5 FT
SideWall Capw/damper 30 FT
RoofCap 30 FT
e,g,- 1 roof cap, 2x90 elbows, l 45 elbow use&'
=30' + 30' + 9' =69' used, 31' available for sflaigbt duct runs,