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Before m aking c utouts, make sure there isproper clearance
within t hewall o rfloor f ortheexhaust vent.
Donotcutajoist o rstud unless a bsolutely necessary.
If ajoist o r
stud must b ecut,then asupporting frame must b econstructed.
Vent materials needed forinstallation arenotsupplied.
The blower housing i ssettovent s traight outtheback from the
cooktop. Tovent d own, l eft, o rright, s ee"Typical exhaust
installation" and"Determine
ventlength" within "Plan vent
system."
The downdraff cooktop i srated at60ff (18.3 m)ofstraight vent
ortheequivalent.
• Ifvent l ength is10ff (3m)orless, 6 "(15.2 cm)diam. r ound
vent m ay beused.
• Ifvent l ength ismore than10ft (3m), u se 6"(15.2 cm)diam.
round or31¼" x 10"(8.3 x25.4 cm)rectangular
vent.
Thermal breaks: Inareas o fextremely cold weather, itmay be
necessary toprovide a short l ength o fnonmetallic duct a sclose
tothewall a spossible toprevent thermal conduction along the
metal vent.
For a ltitudes above 4 ,500 ft(1372 m ), r educe r ecommended
vent
runby20%.
For the most efficient and quietest operation:
•
Use 26-gauge minimum galvanized or 25-gauge minimum
aluminum metal vent. Poor quality pipe fittings can reduce
airflow. Flexible metal vent is not recommended.
NOTE: Local codes may require a heavier gauge material.
•
The length of vent and number of elbows should be kept to a
minimum to provide efficient performance.
•
The size of the vent should be uniform.
Use the fewest number of 90 ° elbows possible.
Do not install 2 elbows together.
Make sure there is a minimum of 18" (45.7 cm) straight vent
between the elbows if more that one elbow is used. (Elbows
too close together cause excess turbulence that reduces
airflow.)
Do not use 5" (12.7 cm) elbow in a 6" (15.2 cm) or 31¼"x 10"
(8.3 x 25.4 cm) system.
Do not reduce to 5" (12.7 cm) system after using 6" (15.2 cm)
or 31/4 '' x 10" (8.3 x 25.4 cm) fittings.
•
Avoid forming handmade crimps. Handmade crimps may
restrict airflow.
Use the recommended
vent caps for proper performance.
If
an alternate wall or roof cap is used, be certain the cap size is
not reduced and that it has a backdraft damper.
Use duct tape to seal all joints in the vent system.
Use caulking to seal exterior wall or roof opening around the
cap.
Typical exhaust
installation
Typical installations vent the cooktop through the rear of a
cabinet. Other installations are possible.
B
A. 9%" (24.4 cm) on 30" (76.2 cm) models;
18s/_6 " (38.8 cm) on 86" (91.4 cm) models
B. 9¾" (24.8 cm) hole in rear or side of cabinet
C. 17"(43.2cm)
Optional
exhaust
installations
The cooktop may be vented through the wall or floor. Common
venting methods are shown.
Wall location
for cabinet
)
A
B
A. Inside wall cabinet (vent inside waftto roof or overhang)
B. Outside wall cabinet (vent through wall to outside)
*3W' x 10" (8.3 x 25.4 cm)
**Transition elbow
Peninsula or island location
B
A. Peninsula or island (vent is between floor joists)
B. Peninsula (vent in cabinet toe space to outside)
"3V4"x 10" (8.3 x 25.4 cm)
**Transitionelbow
4
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