NUTONE NC4500 (01) PDF Document

To reduce the risk of fire, electric shock, or injury when using your NUTONE NC4500, please follow these warnings:

1. Do not use on wet surfaces or outdoors.

2. Do not vacuum liquids or fine powders (such as drywall dust).

3. Do not use to pick up flammable or combustible liquids such as gasoline or use in areas where they may be present.

4. Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes.

5. Do not allow to be used as a toy. Close attention is necessary when used by or near children.

6. Use only as described in the manual. Use only manufacturer’s recommended attachments.

7. Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.

8. Turn off all controls before unplugging.

9. Use extra care when cleaning on stairs.

10. Do not handle plug or appliance with wet hands.

11. Do not use with a damaged cord or plug. If the appliance is not working as it should, if it has been dropped, damaged, left outdoors, or dropped into water, return it to a Service Center.

12. Keep your work area well lighted.

13. Connect to a properly grounded outlet only. See grounding instructions.

14. When performing installation, servicing, or cleaning the unit, it is recommended to wear safety glasses and gloves.

15. When applicable local regulations comprise more restrictive installation and/or certification requirements, the aforementioned requirements prevail on those of this document and the installer agrees to conform to these at his own expenses.

Please observe the following cautions when using your NUTONE NC4500:

1. Do not put any object into openings. Do not use with any opening blocked; keep free of dust, lint, hair, and anything that may reduce air flow.

2. Ensure air flows freely and exhausts unobstructed from top or side outlet.

3. Do not use without the filter (or filters, according to the model) in place.

4. Do not use to blow leaves or debris.

5. Do not place any object on top of the unit.

6. Do not install the unit horizontally.

7. Do not use the pail as a wash bucket.

8. Do not use the pail as a stool.

9. Avoid picking up sharp objects.

10. This appliance is for use on a standard 120 VAC, dedicated 15-amp branch circuit. Some brands of house panel breakers may be more sensitive to startup current than others (for example, Square D brand). In the event where nuisance tripping of the house panel breaker occurs, we recommend changing the breaker with an “HM” type of the same AMP rating. This should be done after ensuring that the circuit is DEDICATED to the central vacuum unit, meaning that there is no other electrical device connected to the central vacuum unit circuit.

11. Do not unplug the unit by pulling on the cord. To unplug, grasp the plug, not the cord.

12. Store your vacuum cleaner indoors in a clean, dry area, and away from extreme temperatures.

13. Any servicing other than that recommended in this manual should be performed by an authorized service facility.

14. We recommend that your unit be inspected by a specialized technician once a year.

Cutting Tubing:

Measure the length of tube needed. Allow 5/8″ of tubing for inserting into fittings and 1 1/2″ for placing into flexible tubing. Cut the plastic tubing with a hacksaw, ensuring that the cut is exactly square. Use a small knife or steel wool to remove any burrs from the inside of the tube. Use a file to slightly bevel the outside of the tube so that it will easily slide into the fitting. Use steel wool or a light grained sandpaper to buff the surface of the tube which will be glued.

Making a Joint:

Insert the tube into the fitting, aligning both parts as they will be installed. Mark the tube and the fitting to quickly realign the joint. Apply cement in an inch-wide band to the outside of the tube. Insert the tube into the fitting with the alignment marks a quarter turn apart, and then quickly push and turn the fitting to align the marks and spread the cement. Allow 1 minute for the joint to dry.

Cementing Flexible Tubing:

Ensure the ends of the flexible tubing are even. When joining flexible tubing to plastic tubing or to an inlet mounting plate, apply cement to both the inside of the flexible tubing and the outside of the plastic tubing or mounting plate tubing ring. Twist both pieces while joining them to evenly spread the glue. Allow 5 minutes for the cement to set in flexible tubing.

Secure Wire to Tubing:

The low-voltage power wiring is run along with the tubing. Use electrical tape to secure the wire to the tubing approximately every 12″ to 18″.

1. Making the Wall Inlet Cutout:

The wall inlet should be located 18″ on-center from the floor and directly in line with the attic or basement inlet tubing hole. The wall inlet cutout must be exactly 3 7/8″ high by 2 7/8″ wide.

2. Attaching the Inlet Mounting Plate (V144):

Reach through the inlet hole and locate the inlet tubing. Pull the flexible tubing through the inlet hole and remove the low-voltage wiring from inside the tube. Remove the nail flange from the inlet mounting plate. Apply cement to both the inside of the flexible tubing and to the outside of the mounting plate’s tube ring. Insert the mounting plate’s tube ring in the flexible tubing, twisting the pieces as you join them to spread the cement, and align the mounting plate in a vertical position. Strip the ends of the two low-voltage wires, and then connect the wires to the screw terminals on the back of the inlet cover.

3. Completing the Inlet Assembly:

Once you have attached the mounting plate to the flexible tubing, pull the low-voltage wire through the top wiring hole in the mounting plate. Assemble the inlet cover to the tube guard and mounting plate.

4. Installing the Inlet (V111):

Place the inlet into the wall cutout (the inlet cover remains on the outside). Hold the inlet in place and gradually tighten down each screw a little bit at a time.

Follow these guidelines for locating your NUTONE NC4500 power unit:

• Locate the power unit away from the general living area in an accessible location for cleaning and maintenance.

• Locate the power unit within 6 feet of a grounded electrical outlet. The power unit requires a 120 VAC power source, dedicated 15-amp branch circuit.

• Do not locate the power unit close to a source of extreme heat (i.e., water heater) or in an area with a high ambient temperature (i.e., attic, furnace room).

• If the power unit is located in a closet or a small utility room, make sure the area is well-ventilated (e.g., with door louvers).

• Do not install outdoors. Before being hung, rest the unit on a leveled surface to prevent the unit from falling down.

The NUTONE NC4500 unit is factory shipped for use in cyclonic mode but can be operated with a disposable bag (391C). The included bag adapter must be installed. Follow these steps:

1. Remove the pail from the unit by releasing both side latches, pulling them out and then pushing them up. Detach the pail from the unit.

2. Assemble the bag adapter to the intake elbow. Align the triangle with the small inclined stud.

3. Tighten the junction using the screw and nut (included in the parts bag).

4. Unfold the disposable bag and grasp its collar where indicated. Insert over the bag adapter. Be careful not to tear the bag. Ensure the collar is positioned between the taper ring and the bag stopper on the bag adapter. Put the pail back in place.

1. Observe Clearances:

Refer to the following minimum clearance dimensions:

• 12″ minimum from side walls.

• 12″ minimum from the ceiling.

• 18″ minimum above the floor.

2. Install Mounting Bracket:

Position and install the wall mounting bracket with the provided screws. Ensure to screw the wall mounting bracket directly to a wall stud for a solid installation. The bracket requires a minimum height of 45 1/4″. Use the provided mounting screws to secure the bracket through the upper and lower mounting holes.

3. Hang Power Unit:

Hang the power unit onto the wall mounting bracket. Ensure the back brackets of the power unit are engaged with the corresponding wall bracket fingers. Pull the power unit down to secure.

Fitting Main Line to Power Unit:

Run the house vacuum line up to the elbow behind the power unit. Insert the end of the line in the elbow opening and secure the house vacuum line by hand-tightening the screw and nut provided. DO NOT GLUE.

Exhaust Tubing:

Assemble exhaust tubing to the exhaust outlet on the top of the unit. DO NOT GLUE.

• Using flexible tubing will ease future top cap removal.

• Make sure all tubing connections are air tight.

• The exhaust should not be vented into a wall, ceiling, or concealed space in the house. It is recommended to vent the vacuum exhaust air to the outdoors. An exterior vented exhaust line should end using a Model V145 wall cap.

• For optimal indoor air quality, exhausting the power unit to the outdoors is recommended but is not required.

Grounding Instructions:

This appliance must be grounded. Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with a qualified electrician or service person if you are in doubt as to whether the outlet is properly grounded. Do not modify the plug provided with the appliance – if it will not fit the outlet, have a proper outlet installed by a qualified electrician. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Wiring:

The NUTONE NC4500 is for use on a standard 120 VAC, dedicated 15-amp branch circuit with a NEMA 5-15R receptacle. Make sure that the power unit is connected to an outlet that has a grounding attachment plug that looks like the plug shown in the manual’s illustration. No adapter should be used with this power unit. Inlet leads are to be connected to the power unit low voltage tabs using crimp connectors (included in the parts bag) and low voltage harness.

Open the wall inlet cover and insert the end of the hose into the inlet to turn on the vacuum.

For non-switched hoses, inserting the hose automatically turns on the power unit; removing the hose shuts off the power unit. Some hoses have switches which can be used to activate the power unit. The ON/OFF switch located on the power unit needs to be kept in the OFF position.

As you vacuum, dirt and dust are carried to the power unit where they remain in a bag or in the debris pail.

Use the cleaning tools as you would for any other vacuum cleaner. Avoid picking up very large or lengthy debris as these kinds of objects may become lodged in the hose or tubing.

With a 6 U.S. gallons (22.7 liters) capacity, under normal conditions the debris pail requires emptying approximately twice a year. If the debris pail is full, you will notice a reduced suction from the system. Unless this loss of suction is caused by a blockage in the system, emptying the debris pail will solve the problem.

To empty the debris pail, release both latches on the sides of the unit by pulling out and then pushing up. Holding the pail by the latches, lower it from the unit. Carry the pail to a trash receptacle and dispose of the debris. Put the pail back in its place.

1. To remove the disposable bag, release both latches on the sides of the unit by pulling out and then pushing up. Remove the pail from the unit. Grasp the edges of the bag collar and pull down. The bag will slide off easily. Do not pull on the bag.

2. Unfold the new bag.

3. Grasp the collar where indicated on the new bag and insert it over the bag adapter. Be careful not to tear the bag. Ensure the collar is positioned between the taper ring and the bag stopper on the bag adapter. Put the pail back in its place.

Removal:

1. Remove the pail from the unit.

2. To remove the permanent filter, use the pull tab (A) located on the edge of the filter to pull and loosen the filter from the inlet chamber wall.

3. Squeeze from both sides of the filter to the center of the housing. Then, carefully remove it from the unit.

Reinstallation:

1. Squeeze the filter in order to move it past the inlet opening (B).

2. Let the filter bear against the unit wall by releasing the pressure.

3. Make sure to place the rigid ring in its groove to ensure proper sealing.

NOTE: Make sure the filter is installed so that the pull tab (A) is accessible for future filter removal. Be sure to reinstall the filter properly. Appropriate location is critical to ensure proper protection of the motor.

The motor foam safety filter, located at the top of the vacuum chamber, protects the motor. This filter should be checked and cleaned if necessary when the permanent filter is removed. Simply brush the filter clean. If the filter is excessively soiled, hand wash it in a water and mild detergent solution, rinse, and let it dry completely on a flat surface before reinstalling.

Operating the power unit without the motor foam filter will void the warranty.

Removing the Motor Foam Filter:

Remove the debris pail and permanent filter. Lift the center of the wire retaining the motor foam filter and slide the filter out of its location.

Reinstalling the Motor Foam Filter:

To reinstall the motor foam filter, reverse the steps described above.

Low Voltage Hose:

To ensure proper operation, insert the hose into the wall inlet. Align the tab on the hose up with the depression in the wall inlet (A).

Dual Voltage Hose (Electric Kits Only):

In addition to connecting into the wall inlet (A), the dual voltage hose must also be connected to a standard electrical outlet (B).

Low Voltage Hose:

The switch will turn the power unit ON (I position) and OFF (O position).

Dual Voltage Hose:

• Switch on II position: Central vacuum mode with power brush.

• Switch on I position: Central vacuum mode without power brush.

• Switch on O (center) position: Power unit is turned OFF.

1. Read important safety instructions before installing the power brush.

2. Ensure the hose is disconnected from the power supply before installing the power brush.

3. Push the wand into the power brush neck so that the lock button snaps in place.

4. Connect the hose handle into the wand quick connector and ensure that the prongs are aligned with the receptacle holes. Push until the lock button snaps in place.

CAUTION: Always check the underside of the product for any obstructions prior to use.

WARNING: Never leave the electric power brush unattended while it is plugged in.

Wand Release: The power brush is not recommended for use on bare floors. The wand release pedal (A) on the power brush allows you to quickly disconnect the wand and switch to a combination floor/rug tool for use on bare floors. Always unlock the brush neck before use.

Power Brush Neck Release: Push down the power brush neck release pedal (B) to unlock the brush neck. Return the neck to the upright position for storage.

Power Brush Height Adjustment: The icons (D) refer to the carpet pile height. Select the height by depressing the height adjustment pedal (C) to the desired position: Extra-Low, Low, Medium, or High. The LEDs will indicate the selected height.

Wand Length Adjustment: Extend (E) or shorten (F) the wand to a comfortable work position by holding the wand grip (G) in one hand and sliding the upper section with the other hand.

Edge Cleaner: The brush extends the full width for effective edge cleaning. To operate, simply run the cleaner along the edge board. A rubber bumper protects furniture and baseboards.

The power brush is equipped with an electronic circuit breaker that protects the motor and belt if a large object is picked up accidentally. If the power brush stops while vacuuming:

1. Turn the power unit off using the handle.

2. Release the power brush from the wand and turn it over to see if there is an obstruction.

3. When the brush roll jam has been cleared, press the reset button (H) and connect the power brush back to the wand.

4. Finally, turn the power unit/power brush back on. If it fails to restart or continues to trip without any apparent reason, the power brush must be serviced by an authorized service center.

Cleaning:

WARNING: Disconnect the electrical supply before servicing or cleaning the unit. Failure to do so can result in electrical shock or personal injury from the cleaner suddenly starting.

• Brush Roll: To keep high cleaning efficiency, the brush roll must be cleaned every time the belt is changed. It should also be cleaned according to the schedule below. Check and remove hair, string, and lint build-up frequently.

• Housing: To keep the power brush housing clean, it can be wiped with a damp cloth and a mild soap solution, then thoroughly dried. Never use any type of chemical as they can damage the housing.

Storage:

• Ensure that the hose and power cord are disconnected from the wall inlet before unplugging the power brush.

• Disconnect the hose handle from the wand.

• Always keep the hose neatly coiled when not in use.

• When not in use, the power brush should be stored in a clean, dry place.

WARNING: The motor shaft can become hot during normal use. To prevent burns, avoid touching the motor shaft when replacing the drive belt.

1. Turn the power brush over and using a Phillips no. 2 screwdriver, remove the 3 brush roll cover retaining screws (Fig. 1) and set them aside.

2. Remove the brush roll cover (Fig. 2).

3. To free the brush roll from the base, start by sliding the belt side end and pull the brush roll sideways (1). Once disengaged from the housing, lift the brush roll (2) out of its compartment (Fig. 3).

4. Disengage the brush roll from the worn belt and extract the belt from the motor shaft by a twisting motion in the enlarged area (I) specifically made for that purpose (Fig. 4).

5. Install the new belt by reversing steps 4 to 1.

NOTE: To ease belt replacement, start by inserting one end around the motor shaft in the enlarged area (I). Insert the brush roll through the belt until the belt is seated in its place. Push the brush roll back in place.

Replace the brush roll when the brush roll bristles are worn to the base support bars level.

1. Turn the power brush over and using a Phillips no. 2 screwdriver, remove the 3 brush roll cover retaining screws (Fig. 1) and set them aside.

2. Remove the brush roll cover (Fig. 2).

3. To free the brush roll from the base, start by sliding the belt side end and pull the brush roll sideways (1). Once disengaged from the housing, lift the brush roll (2) out of its compartment (Fig. 3).

4. Disengage the brush roll from the belt. Discard the worn brush roll.

5. Insert the new brush roll through the belt until the belt is seated in its place. Push the brush roll back in place.

6. Finalize the installation by reversing steps 3 to 1.

NOTE: Order service parts by “Part No.” – not by “Key No.”