NuTone CV556, CV554, CV570 User Manual

Built-In Central Cleaning System

MODELS: CV554, CV556, and CV570

SYSTEM PLANNING AND LAYOUT . . . . . . . . . . . . . . . . . . . . . .2

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Locating the Power Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Tubing and Wall Inlet Location . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Locating Access Keys in Existing Construction . . . . . . . . . . . . . . .3

INSTALLATION IN NEW CONSTRUCTION . . . . . . . . . . . . . . . .4-8

Wall Inlet Rough-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Installing the Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Wall Inlet Installation

Model 360 Wall Inlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Model 330 Wall Inlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Model CI390 Wall Inlet (Electrified Inlet) . . . . . . . . . . . . . . . . . .7

POWER UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Dimensional Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Tubing Connections at Power Unit . . . . . . . . . . . . . . . . . . . . . . .8

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

INSTALLATION IN EXISTING CONSTRUCTION . . . . . . . . . . .9-10

Wall Inlet Installation

Model 360 Wall Inlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Model 330 Wall Inlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

FLOOR INLET INSTALLATION . . . . . . . . . . . . . . . . . . . . . . .10-11

FINAL SYSTEM CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

INSTALLATION

INSTRUCTIONS

SYSTEM PLANNING AND LAYOUT

The NuTone Central Cleaning System consists of a Power Unit, PVC Tubing and Fittings, Wall Inlets, a flexible Hose and various cleaning Attachments.

The Power Unit is designed to be wall-mounted away from the living area of the home and connected to the living area by means of permanently installed in-wall tubing, fittings and inlets.

Generally, an installation will require 3 to 4 inlets and 16 to 20 feet of tubing per inlet. It is suggested that a floor plan be used to more accurately determine the quantity of materials needed.

As an aid in planning the installation in either new or existing construction, look at the following examples. You should be able to adapt the examples shown to your specific home layout.

Here the power unit is mounted in the garage. The intake and exhaust tubing, the only exposed tubing in the installation, runs up the garage wall and into the attic. The trunk line runs horizontally through the attic from the power unit to the farthest inlet location. Branch lines spread throughout the attic, connecting the trunk line to the inlet tubing. Each inlet tube is threaded vertically through an inside wall. Located in hallways, and in large rooms, the inlets are placed to provide maximum access to all cleaning areas. See Figure 1.

EXHAUST

TRUNK LINE

BRANCH LINE

INLETS

POWER

UNIT

INTAKE

INLET LINE

FIGURE 2

FIGURE 1

Like the two-story house, the split level installation

commonly calls for a two-level trunk line. Here,

the power unit is located in the garage.

The intake tubing runs exposed up the

garage wall and into the ground level

section's attic. Two branch lines

connect this part of the trunk

line to inlet lines which are

dropped inside interior walls. A

vertical branch line runs to the

upstairs attic, where the trunk

line branches into a T-shape.

This trunk line connects to two

upstairs inlet lines and to one inlet line which drops through

an upstairs wall and down into

the third-level utility room to service

this entire level. See Figure 3.

EXHAUST

POWER

UNIT

INTAKE

TRUNK

LINE

VERTICAL

BRANCH

LINE

BRANCH

LINES

INLET

LINE

INLET

BRANCH

LINE

THE RANCH STYLE HOUSE

THE TWO-STORY HOUSE

THE SPLIT-LEVEL HOUSE

A double-trunk line system is commonly used in two-story houses.

In the installation shown at left, the power unit is mounted in the

basement. The intake tubing runs up the basement wall and

connects to the main trunk line, which runs along the unfinished

basement ceiling. Two first-floor inlets are connected to the basement

trunk line by vertical inlet lines run through interior walls. In the center

of the house, a vertical branch line runs from the basement trunk line,

through stacked closets, up into the attic. A second trunk line runs across

the attic and two branch lines connect to inlet lines which are dropped

down through upstairs interior walls. See Figure 2.

FIGURE 3

ATTIC

TRUNK

LINE

INLET

VERTICAL

BRANCH

LINE

INTAKE

POWER

UNIT

EXHAUST

BASEMENT

TRUNK LINE

LINE

INLET

• Locate the power unit away from the general living area in an

accessible location for emptying the lower dirt cannister and periodically cleaning the filter.

• When planning, remember the power unit is equipped with

an inlet to service a garage, basement, utility room, etc., wherever it is located.

• Locate the power unit within six feet of a grounded electrical

outlet. The power unit requires a 120vAC power source.

• 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 (i.e., with door louvers).

• Exhausting the power unit to the outside is recommended for

optimal performance but is not required. The exhaust should not be vented into a wall, a ceiling or a concealed space in the house. If the exhaust line is vented outside the home, Model 393 Wall Cap or a roof vent are recommended.

WARNING: Power unit must not be mounted in a high ambient temperature area such as attic, furnace room, etc.

TUBING AND WALL INLET LOCATIONS

1. Locate inlets on interior walls, choosing central locations

which allow several rooms to be cleaned from a single inlet using a 30 foot long hose.

2. The tubing installation should consist of a main trunk line

running from the farthest wall inlet to the power unit location, with branch lines running to each additional inlet. Keep all tubing lines as straight as possible and use as few fittings as possible. Beginning at the area farthest from the power unit, choose a tentative inlet location. Measure 30 feet from the proposed inlet location to the farthest corner of the rooms to be cleaned by that inlet to determine if inlet location is proper.

3. If working from blueprints (or building plans drawn at

⁄4" = 1 ft. scale), use a 71⁄2" chain as your guide to

determine inlet locations.

4. Move tentative inlet location if necessary. Use the same

procedure to determine each additional inlet location, always working toward the power unit.

5. Be sure tubing will not interfere with electrical, plumbing or

other mechanical installations.

6. Locate inlets within six feet of an electrical receptacle to

allow use of optional current-carrying hose.

7. Be sure inlets will not be blocked by doors or furniture.

LOCATING THE POWER UNIT

Built-In Appliances. You will often

find a hollow space behind built-in kitchen appliances. If this space lines up with an obstruction-free interior wall above or a closet, this might be a key to your installation. See Figure 5. You may also want to consider running exposed tubing through cabinets or cupboards.

Cold-Air Return. A cold-air return often provides a straight run from basement to other levels of the house. See Figure 6. The ductwork is easily cut for access. Seal around the tube when completing the installation.

FIGURE 5

FIGURE 6

LOCATING ACCESS KEYS IN EXISTING CONSTRUCTION

Let's say, for example, you have a two-story house and you want to locate the power unit in the basement. If you can't find interior walls on both the first and second floors which line up and are free from obstacles. How do you get from the basement to the attic?

Unless your home is a ranch-style house where a single trunk line can run directly through the attic or basement, you should first investigate your house to find the key to running your tubing from level to level. Look for an accessible area free from obstructions that will accommodate the 2" tubing.

If you understand how your existing home is constructed, it can be relatively easy to find access routes to run the tubing. Refer again to the illustration on page 2 as you consider your home construction.

Some of the keys you might find in your home are illustrated here.

FIGURE 4

Stacked Closets or Laundry Chute. Many homes will have

an upstairs closet located directly above a downstairs closet. It is easy to run the tubing from one floor level to another inside these stacked closets. In these installations the tubing is often left exposed inside the closets. See Figure

4. A laundry chute could also provide access from basement to upper floors.

TUBING

INSTALLATION IN NEW CONSTRUCTION

Once the locations for wall inlets have been determined, mount

all inlet brackets.

1. Choose the appropriate mounting bracket for the inlet being installed. (See chart.)

2. To locate bracket on wall stud, measure approximately 18" up from finished floor level. (Height may vary according to individual preference.)

MODEL 361 (FOR USE WITH 360 INLETS)

3. Refer to Figure 7. Nail bracket to side of stud so that front edge of bracket is flush to front of stud. (The bracket may also be nailed to the front edge of the stud. See face mounting illustrated. For face mounting, use locating tabs on bracket for proper alignment.)

4. Refer to Figure 8. Remove cardboard from plaster guard frame. Using four (4) provided screws, attach the appropriate flanged fitting and inlet seal to back of inlet.

5. Replace cardboard in plaster guard frame.

MODEL 329 (FOR USE WITH 330 INLETS)

6. When using Model 329, glue elbow to mounting plate. Attach to stud as shown in Figure 9.

SIDE

MOUNTING

FACE

MOUNTING

MODEL 361

23/8"

/16"

FIGURE 7

FIGURE 8

WALL INLET ROUGH-IN

SIDE

MOUNTING

/8"

FIGURE 9

NuTone Inlet Rough-in

330 Series 329

360 Series 361

CI390 Series Electrified Inlet CI390RK

INSTALLATION IN NEW CONSTRUCTION

(continued)

Use the following installation guidelines when installing tubing.

1. Start tubing installation at farthest inlet and work toward the

power unit.

2. Tubing run to the power unit should be as straight as

possible.

3. When assembling sections with elbows and tees, make

sure the curve in the fitting is aligned so that the air flows toward the power unit.

4. Branch lines should always join the trunk line from above or

from the same level. Never join a branch line from an angle below the trunk line.

5. Refer to Figure 28 on page 8. Run low voltage wiring

(Model 376-UL) and secure wiring to tubing as tubing is installed. Model CF-380 Pipe Support can be used to support long runs of tubing (position near joists) and to clip wire along tubing. Secure tubing to joists or studs. Leave approximately 6" of wire for connection to each inlet.

6. Cut a 2

⁄2" diameter hole in sole plate, header or stud

directly in line with opening of inlet bracket fitting.

Note Figure 6 for center line dimensions.

7. Refer to Figure 11. Measure length of tubing needed to

connect inlet to trunk line. Allow approximately

⁄4" of tubing

for inserting into fittings.

8. Refer to Figure 12. Cut tubing, keeping cut square.

9. Refer to Figure 13. Remove burrs from both inside and

outside of tubing.

10. Before cementing, pre-assemble section to inlet fitting,

check for proper length.

11. Refer to Figure 14. Apply PVC cement (Model 379) to

outside of tubing. Coat tubing approximately 1" back. Take care to keep cement from inside of tube.

12. Refer to Figure 15. Insert tubing into fitting with a twisting

motion to evenly spread cement. Be sure tubing is firmly seated in fitting.

13. If fittings have been attached to tubing at the end opposite

the inlet bracket, be sure alignment is proper before cement sets.

14. Refer to Figure 16. Tape wire to tubing to hold in place

and insert through hole in inlet bracket.

15. Connect each inlet line and branch line into main trunk line.

Complete low voltage wiring as main trunk line is continued back to power unit.

INSTALLING THE TUBING

SIDE

MOUNTING

FACE

MOUNTING

MODEL 361 MOUNTING

/2" DIA. HOLE

THROUGH SOLE PLATE

/8"

/16"

MODEL 329 MOUNTING

FACE

MOUNTING

/16"

/2" DIA. HOLE

THROUGH SOLE PLATE

/16"

FIGURE 10

FIGURE 11

FIGURE 12 FIGURE 13

FIGURE 14 FIGURE 15

FIGURE 16

2" - 382S 2

⁄8" - 382

Caution: When tubing is run through the wall stud, sole plate, headers - or anywhere that building materials will be attached - place a nail plate (Model 378) over that area (on both sides if necessary) to prevent nails from piercing tubing.

/4"

FITTING

INCLUDE FITTING

RECESS IN

MEASUREMENT

TUBING MEASUREMENT

PVC TUBING

/4"

FITTING

INSTALLATION IN NEW CONSTRUCTION

(continued)

FIGURE 19

FIGURE 21

FIGURE 17

MODEL 360 WALL INLET (361 Rough-In)

1. Remove the cardboard plaster guard.

2. Refer to Figure 17. For some drywall or panel construction, the plaster frame will extend beyond the finished wall. In this case, remove plaster frame from mounting bracket by removing mounting screws.

NOTE: When using the Model 361 inlet bracket on walls thinner than

⁄2", use a 1⁄4" spacer (not furnished) between the wall and the inlet bracket. See Figure 20. Spacer may be made from plywood, Masonite™, etc. Contact cement may be used to hold spacer in place during assembly. Configuration of spacer may vary depending upon installation.

3. Refer to Figure 18. Connect 2-conductor low voltage wire to

terminal screws on back of wall inlet. Cap off both wires using wire nut (supplied).

4. Guide excess wire back through the hole in inlet bracket and

flanged fitting

5. Refer to Figure 19. Place inlet into mounting bracket and

secure.

NOTE: when wall inlets are installed in walls that are less than

⁄2" thick or when inlets are installed back-to-back in a wall, the tube of the wall inlet may extend into elbow area of the flanged fitting and cause blockage. Shorten the wall inlet tube to prevent this condition. Refer to Figure 21.

For extra thick walls, use Model 399 Extension Sleeve to connect inlet to the flanged fitting.

MODEL 330 WALL INLET (329 Rough-in)

See Figure 23.

1. Connect 2-conductor low voltage wire to terminal screws on

back of wall inlet.

2. Align inlet mounting holes with holes in mounting plate.

3. Place inlet into mounting plate and secure with two provided

screws.

MOUNTING

PLATE

INLET

FIGURE 22

WALL INLET INSTALLATION

FIGURE 20

FIGURE 18

INLET MOUNTING

BRACKET

21/4"

SPACER

/4"

31/4"

MODEL 365

DOUBLE FLANGED

TEE

PLASTER

WALL LESS THAN

GUARD

HOLE

WALL INLET

/2" THICK.

WALL

SHORTEN

MOUNTING

BRACKET

INSTALLATION IN NEW CONSTRUCTION

(continued)

1. See Figure 23. Fasten the mounting plate to a stud within

three studs (48") of an electrical outlet box. Measure and mark the wire 10" from the plug (A). Feed the wire through the top hole in the mounting plate (just above the circular opening). Snap the molded plug into the mounting plate as pictured (B). This will keep it secure and out of harm’s way during drywalling and finishing. Line up the wire at the previously measured 10" mark with the strain of relief channel on the back of the mounting plate. Secure it in place with the supplied wire tie (C).

2. Run the inlet wire to the adjacent electric box. If you must

run wire through a stud, drill directly through the center of the stud (D).

3. See Figure 24. Place the exposed ends of the two wires

into the electrical box through a strain relief channel (E). Tighten the strain relief channel (do not overtighten) on the white sheathing leaving 1/2" of this sheathing exposed inside of the outlet box.

Fold the 6" of black and white wire into the outlet box. Leave the wires to be connected by the electrician when plug receptacles are being installed. (Attention: Power tools such as routers are not recommended for use with the inlet installation, as removal of drywall with these devices may cause damage to the mounting plate and/or inlet plug).

4. Once drywall and finishing processes have been

completed, remove molded plug from mounting plate (with the aid of a slot screwdriver) and snap it into the wing slot at the back of the inlet (F). (Please note: molded plug fits one way only, with the narrow opening at the top). Insert inlet into the mounting plate and secure inlet to mounting plate with screws provided.

NOTE: All electrical devices such as the electrified inlet should be reported to the construction electrician for listing on the inspection report for building inspection purposes.

NOTE: Plumb inlet to tubing using NuTone Model 382-S 90° Ell fitting.

CI-390 ELECTRAVALVE™ ELECTRIFIED INLET INSTALLATION (CI-390RK Rough-In) (Not available in Canada)

FIGURE 23

FIGURE 24

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