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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
size of the ductwork should be uniform. Do not install two
around the cap.
Flexible ductwork is not recommended. If it is used,
each foot of exible ductwork used is equivalent to
two feet of straight metal ductwork when calculating
the ductrun length. Thus, a exible elbow equals two
standard elbows.
cut, then a supporting frame must be constructed.
TO PAGE 4.
WARNING - To Reduce The Risk Of Fire, Use Only Metal
Ductwork.
ELECTRICAL REQUIREMENTS
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
must conform to the requirements of the National Electrical
ordinances. Wire size and connections must conform with the
may be obtained from:
National Fire Protection Association
Quincy, Massachusetts 02269
DO NOT terminate the ductwork in an attic or other
enclosed space.
DO NOT use 4" laundry-type wall caps.
DO NOT
ventilation air.
This appliance should be connected directly to the fused
nonmetallic sheathed copper cable. Allow some slack in the
cable so the appliance can be moved if servicing is ever nec-
at each end of the power supply cable (at the appliance and
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.
WARNING - TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, do not use this fan with any solid-state speed
control device.
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRI-
CAL SHOCK, OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING: Use this unit only in the manner intended
by the manufacturer. If you have any questions, 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.
CAUTION: For General Ventilating Use Only. Do Not
Use To Exhaust Hazardous or Explosive Materials and
Vapors.
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRI-
CAL SHOCK, OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING: Installation Work And Electrical Wiring Must
Be Done By Qualied Person(s) In Accordance With All
Applicable Codes And Standards, Including Fire-Rated
Construction.
Sufcient air is needed for proper combustion and
exhausting of gases through the ue (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 Heating, Refrigeration and Air Conditioning Engineers
(ASHRAE), and the local code authorities.
When cutting or drilling into wall or ceiling, do not dam-
age electrical wiring and other hidden utilities.
Ducted fans must always be vented to the outdoors.
WARNING
nonmetallic gaskets or other materials, DO NOT
use for grounding.
circuit. A fuse in the neutral or grounding circuit
could result in electrical shock.
as to whether the rangehood is properly grounded.
WARNING
For residential use only.
Cold Weather installations
An additional back draft damper should be installed to minimize
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.
CAUTION: To reduce risk of re and to properly exhaust air, be
sure to duct air outside - do not vent exhuast air into spaces within
walls or ceilings or into attics, crawl spaces or garages.