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VENTING REQUIREMENTS
Determine which venting method is best for your application.
Ductwork can extend either through the wall or the roof.
The length of the ductwork and the number of elbows should
be kept to a minimum to provide efficient performance. The
size of the ductwork should be uniform. Do not install two
elbows together. Use duct tape to seal all joints in the ductwork
system. Use caulking to seal exterior wall or floor opening
around the cap.
Flexible ductwork is not recommended. If it is used, each foot
of flexible ductwork used is equivalent to two feet of straight
metal ductwork when calculating the ductrun length. Thus,
a flexible elbow equals two standard elbows.
Make sure there is proper clearance within the wall or floor
for exhaust duct before making cutouts. Do not cut a joist or
stud unless absolutely necessary. If a joist or stud must be
cut, then a supporting frame must be constructed. For best
results, remote blowers should transition to 10" round duct
as soon as possible. If small ducting is used, it should be
transitioned to 9 or 10" round as soon as possible.
WARNING - To Reduce The Risk Of Fire, Use Only Metal Ductwork.
ELECTRICAL REQUIREMENTS
A 120 volt, 60 Hz AC-only electrical supply is required on a
separate 15 amp fused circuit. A time-delay fuse or circuit
breaker is recommended. The fuse must be sized per local
codes in accordance with the electrical rating of this unit as
specified on the serial/rating plate located inside the unit
near the field wiring compartment. THIS UNIT MUST BE
CONNECTED WITH COPPER WIRE ONLY. Wire sizes
must conform to the requirements of the National Electrical
Code, ANSI/NFPA 70 - latest edition, and all local codes and
ordinances. Wire size and connections must conform with the
rating of the appliance. Copies of the standard listed above
may be obtained from:
National Fire Protection Association
Batterymarch Park
Quincy, Massachusetts 02269
• Venting system MUST terminate outside the
home.
• DO NOT terminate the ductwork in an attic or
other enclosed space.
• DO NOT use 4" laundry-type wall caps.
• Flexible-type ductwork is not recommended.
• DO NOT obstruct the flow of combustion and
ventilation air.
• Failure to follow venting requirements may result
in a fire.
This appliance should be connected directly to the fused
disconnect (or circuit breaker) through flexible, armored or
nonmetallic sheathed copper cable. Allow some slack in the
cable so the appliance can be moved if servicing is ever nec
-
essary. A UL Listed, 1/2" conduit connector must be provided
at each end of the power supply cable (at the appliance and
at the junction box).
When making the electrical connection, cut a 1 1/4" hole
in the wall. A hole cut through wood must be sanded until
smooth. A hole through metal must have a grommet.
SUITABLE FOR USE WITH SOLID STATE SPEED CONTROLS.
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK, OR
INJURY TO PERSONS, OBSERVE THE FOLLOWING: Use this unit only
in the manner intended by the manufacturer. If you have any ques
-
tions, contact the manufacturer.
Before servicing or cleaning unit, switch power off at service panel
and lock the service disconnecting means to prevent power from
being switched on accidentally. When the service disconnecting
means cannot be locked, securely fasten a prominent warning
device, such as a tag, to the service panel.
WARNING - TO REDUCE THE RISK OF SHOCK: This fan must be installed
with an isolating wall control/switch.
CAUTION: For General Ventilating Use Only. Do Not Use To Exhaust
Hazardous or Explosive Materials and Vapors.
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK,
OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: Installation
Work And Electrical Wiring Must Be Done By Qualified Person(s)
In Accordance With All Applicable Codes And Standards, Including
Fire-Rated Construction.
Sufficient air is needed for proper combustion and exhausting of
gases through the flue (chimney) of fuel burning equipment to prevent
backdrafting. Follow the heating equipment manufacturer's guideline
and safety standards such as those published by the National Fire
Protection Association (NFPA), and the American Society for Heat
-
ing, Refrigeration and Air Conditioning Engineers (ASHRAE), and the
local code authorities.
When cutting or drilling into wall or ceiling, do not damage electrical
wiring and other hidden utilities.
Ducted fans must always be vented to the outdoors.
WARNING
• Electrical ground is required on this rangehood.
• If cold water pipe is interrupted by plastic,
nonmetallic gaskets or other materials, DO NOT
use for grounding.
• DO NOT ground to a gas pipe.
• DO NOT have a fuse in the neutral or grounding
circuit. A fuse in the neutral or grounding circuit
could result in electrical shock.
• Check with a qualified electrician if you are in doubt
as to whether the rangehood is properly grounded.
• Failure to follow electrical requirements may result
in a fire.
WARNING
For residential use only.
!
!
Cold Weather installations
An additional back draft damper should be installed to minimize
backward cold air flow and a nonmetallic thermal break should be
installed to minimize conduction of outside temperatures as part of
the vent system. The damper should be on the cold air side of the
thermal break. The break should be
as close as possible to where the
vent system enters the heated portion of the house.
