Installation guide

Installation Specifications
Electrical Specifications
WARNING
The:electrical service. to the range hood should be
installed only -by-a licensed electrician.
it is the owner’s responsibility to ensure that the electrical
connection of this appliance is performed by a qualified
electrician. The electrical installation, including minimum
supply wire size and grounding, must be in accordance
with the National Electric code ANSI/NFPA* (or latest
revision) and local codes and ordinances.
* A copy of this standard may be obtained from:
National Fire Protection Association
{ Batterymarch Park
Quincy, Massachusetts 02269-9101
Connect the hood to a junction box supplied by a 120
Vac, 60 Hz dedicated, grounded, 3-wire (hot, neutral,
* When planning new
duct work, always look
for the shortest, most
direct route to the out-
side. Venting can be Lie
done through the roof {
or directly through the 7
back
wail
to
the
out-
’
side
as
shown.
O
Ze
oe
4
ft
ao
« Make sure duct work
does not interfere with A
floor joists or wall
studs.
a
A
Calculating the Maximum Duct Run Length
The maximum straight duct length for the hood is 50 feet.
To determine the actual maximum duct run, subtract the
equivalent length of each elbow, transition and cap from
50 feet.
ground) circuit protected by a 15 Amp. circuit breaker EQUIVALENT LENGTHS
or time delay fuse. It must be installed a minimum of 17 Piece Subtract Piece Subtract
inches above the bottom of the hood.
8” 90° elbow 7 feet 10” 90° elbow 5 feet
Planni ng the Duct Work 8" 45° elbow | 3 feet | 10" 45° elbow| 2 feet
34" X 10” 3% X 10” to
to round 90° 25 feet 8"/10” round 4 feet
WARNING transition transition
* To reduce the risk of fire and to properly exhaust air, Roof cap . Wail cap with .
be sure to.duct air outside the house or building. Do damper
not vent exhaust-air into spaces. within walls or cell-
ings or-into-attics, crawl spaces or. garages.
«Jo prevent combustion by-products smoke or-odors
from-entering the home. and to improve-efficiency,
tape all duct joints securely.
«Do ‘not exhaust more than-one vent into.a single
duct run.
«TO REDUCE THE RISK OF FIRE, USE ONLY
METAL DUCT WORK.
«~ DO - NOT install an additional in-line.or external
blower to increase the length of the duct.run. Even
small differences between blower air flow rates can
greatly reduce the air draw. of the hood.
* All duct work materials (including screws and duct
tape) must be purchased separately by the customer.
* The hood exhaust connects to an 8-inch round duct.
You can increase the duct size over the duct run if
desired. To prevent a back draft, never decrease the
duct size over the run. If existing duct work is smaller
than 8 inches in diameter, remove it and replace it
with 8-inch duct work.
* Do not rely on tape alone to seal duct joints. Fasten
all connections with sheet metal screws and tape all
joints with certified silver tape or duct tape. Use sheet
metal screws as required to support the duct weight.
* To prevent back-crafts, a damper at the duct outlet
may also be required.
* The equivalent lengths of roof and wall caps vary with
model and configuration. For equivalent length, contact
the manufacturer or a qualified HVAC specialist.
Duct Work Design Tips
* Wherever possible, reduce the number of transitions
and turns to as few sharp angles as possible. Two
staggered 45° angles are better than one 90°.
* Keep turns as far away from the hood exhaust as
possible, and as much space between bends as pos-
sible.
* For best performance, use round duct instead of rect-
angular, especially when elbows are required.
* If multiple elbows are used, try to keep a minimum of
24 inches straight duct between them. Avoid “S” or
“back to back” use of adjacent elbows.
* In regions where the weather gets extremely cold,
use thermal breaks, such as a short section of
non-metallic duct, to avoid indoor heat loss. Locate
the break as close as possible to the outside pass
through point.
* Do not use flexible metal duct.
« DO NOT use duct work that is smaller in cross-
sectional area than the recommended size duct (8”
round).
4 decor.