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 MORE SPECIFIC DUCTWORK INFORMATION, GO
TO PAGE 5.
WARNING - To Reduce The Risk Of Fire, Use Only Metal
Ductwork.
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.
!WARNING
•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.
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
For residential use only.
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 necessary. 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.
WARNING - TO REDUCE THE RISK OF FIRE OR ELEC- TRIC 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 ques- tions, contact the manufacturer.
Before servicing or cleaning unit, switch power off at servicepanelandlocktheservicedisconnectingmeans 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- CALSHOCK,ORINJURYTOPERSONS,OBSERVETHE 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. Fol- low 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 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.
