NUTONE 765HL (01) PDF Document

Before servicing or cleaning the NUTONE 765HL unit, switch power off at the service panel. Lock or tag the service panel to prevent power from being switched on accidentally.

Provide sufficient air for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent backdrafting. Follow the combustion equipment standards such as those published by the National Fire Protection Association (NFPA), the American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and local codes.

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.

Provide a separate 20 AMP circuit. Use 12 GA., 90° C minimum power cable which meets code.

Do not use a speed control with this product.

This unit must be grounded.

For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.

THIS PRODUCT MUST BE MOUNTED IN A FLAT CEILING ONLY. Installations in ceilings 9-feet high or less will provide maximum comfort. DO NOT MOUNT THIS PRODUCT IN A WALL.

Install in ceiling only at least 6 inches from any wall.

To avoid motor bearing damage and noisy, unbalanced impellers, keep drywall spray, construction dust, etc. off motor and impeller.

For quiet and efficient operation, long life, and attractive appearance – lower or remove grille and vacuum interior of fan with a dusting brush attachment.

If the motor bearings make excessive or unusual noise, replace the motor with the exact service motor. The impeller should also be replaced.

Replace light bulb with a 100-Watt (maximum) incandescent light bulb.

Use a 3-Function Control to operate the heater, fan, and light separately. See “Connect Wiring” for details.

The unit will operate most quietly and efficiently when located where the shortest possible duct run and minimum number of elbows will be needed.

Use a roof cap or wall cap that has a built-in damper to reduce backdrafts.

Slide hanger bars into channels on housing. Make sure hanger bar tabs face “up” as shown.

Four (4) sliding hanger bars are provided to allow for accurate positioning of housing anywhere between framing. They can be used on all types of framing (I-joist, standard joist, and truss construction) and span up to 24″.

Snap damper / duct connector onto housing. Make sure connector is flush with top of housing and damper flap falls closed.

Connect 4-inch round ductwork to damper / duct connector. Run ductwork to a roof cap or wall cap. Tape all ductwork connections to make them secure and air tight.

Extend hanger bars to the width of the framing. Hold fan in place with the hanger bar tabs wrapping around the bottom edge of the framing. Nail fan to framing or fasten with screws (not provided) through holes near nails.

To ensure a noise-free mount: Secure hanger bars together with screws or use a pliers to crimp mounting channels tightly around hanger bars.

Hold grille assembly up near housing. Connect light plug from grille assembly to receptacle inside of housing.

Place grille/reflector combination over protruding screw and fasten in place using acorn nut provided. HAND TIGHTEN acorn nut 1/4 turn after it is snug.

The unit accepts a 100-Watt (maximum) incandescent bulb.

Insert a small flat-bladed screwdriver into the slot at one end of the light lens. Carefully pry the lens out.

Hook the tabs on one end of the lens into the slot in the grille. Lift other end of lens up and snap into place.

Use a flat-bladed screwdriver to rotate the round heater grille to provide heat in the desired direction.

Each two-position rocker switch is rated 15 A @ 120VAC. The total load on this control must not exceed 20 A @ 120VAC.

Connect RED (Light) on the wiring plate to BLUE (Light) on the ventilator housing.

Connect BLACK to BLACK (Fan) on the wiring plate to BLACK on the ventilator housing.

Connect BLACK to RED (Heat) on the wiring plate to RED on the ventilator housing.

Connect GROUND on the wiring plate to GREEN on the ventilator housing.

Connect WHITE to WHITE (Neutral) from the ventilator to WHITE on the wiring plate, and WHITE to WHITE on the ventilator housing.

Run 120 VAC house wiring to installation location. Use proper UL approved connectors to secure house wiring to wiring plate. Connect wires as shown in wiring diagram(s).

Finish ceiling. Install ceiling material. Cut out ceiling material closely around housing.

The hanger bars can be used on all types of framing (I-joist, standard joist, and truss construction) and span up to 24″.

Connect 4-inch round ductwork to damper / duct connector.

Housing mounted to joists, trusses, or I-joists. Up to 24-inches on-center.

The following connections are shown for a double-gang switch box:

The UNIT side connections are:

Tape all ductwork connections to make them secure and air tight.

Install ceiling material. Cut out ceiling material closely around housing.