BUILT-IN CENTRAL
CLEANING SYSTEM
MODEL: CV-352
GENERAL INFORMATION..............2
Power Unit Installation ....................7
Dimensional Chart ........................7
Mounting .......................................7
Tubing connections.......................7
Wiring............................................7
LAYOUT AND PLANNING...............2
Examples ........................................2
Locating the Power Unit..................3
Locating the Wall Inlets...................3
Tubing.............................................3
INSTALLATION IN
EXISTING CONSTRUCTION ...........8
Layout and Planning .......................8
Locating Access Keys.....................8
Wall Inlet Installation.......................8
Model 330 Wall Inlet ...................10
INSTALLATION IN
NEW CONSTRUCTION....................4
Wall Inlet Rough-In .........................4
Installing the Tubing........................4
Installation Hints............................4
Tubing Installation.........................5
Wall Inlet Installation.......................6
Model 360 Wall Inlet .....................6
Model 330 Wall Inlet .....................6
FLOOR INLET INSTALLATION.....10
FINAL SYSTEM CHECK................11
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BRANCH
LINES
THE SPLIT-LEVEL HOUSE
VERTICAL
BRANCH
LINE
Like the two-story house, the split level installation
commonly calls for a two-level trunk line.
TRUNK
LINE
Here, the power unit is
EXHAUST
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
INLET
LINE
INTAKE
INLET
POWER
UNIT
BRANCH
LINE
INLET
are dropped
inside interior walls. A vertical
branch line runs to the upstairs attic,
where the trunk line
FIGURE 3
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. This last inlet services
both the utility room and a large L-shaped recreation room.
See Figure 3.
LOCATING THE POWER UNIT
• Locate the power unit away from the general living area.
• The power unit is equipped with an inlet. When planning,
remember the power unit has an inlet for a garage, basement,
utility room, etc.
• 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).
• The power unit should be exhausted to the outside. The
exhaust should not be vented into a wall, a ceiling or a
concealed space in the house. The exhaust line should be
terminated outside the home, using Model 393 Wall Cap or a
roof vent.
• Locate the power unit in an accessible area for changing the
soil bag and periodically cleaning the secondary filter.
• Locate the power unit within six feet of a grounded electrical
outlet. The power unit requires a 120 vAC power source.
• Do not locate the power unit close to a source of extreme heat
(i.e., water heater) or in an area with an ambient high
temperature (i.e., attic, furnace room).
WARNING
Power unit must not be mounted in a high ambient
temperature area such as attic, furnace room, etc.
LOCATING THE WALL INLETS
• Locate inlets on interior walls.
• Locate inlet within six feet of an electrical outlet to allow use of
optional current-carrying hose.
• Be sure tubing will not obstruct electrical, plumbing or other
mechanical installation.
• Choose central locations which allow several rooms to be
cleaned from a single inlet.
• Locate inlets centrally so that a maximum area can be cleaned
with the 30' hose.
• Be sure inlets will not be blocked by doors or furniture.
TUBING
• The 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. Beginning at the area
farthest from the power unit, choose a tentative inlet location.
measure (30 feet for 30 foot hose) 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.
procedure to determine each additional inlet location, always
working toward the power unit.
• 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.
NOTE: Conventional metal or plastic strapping should
support the exhaust tubing when a muffler is used, or at the
joints of long runs of tubing where another means of
support is not available.
• Move tentative inlet location if necessary. Use the same
3
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INSTALLATION IN NEW CONSTRUCTION
WALL INLET ROUGH-IN
1. Once the locations for wall inlets have been determined,
mount all inlet brackets.
2. To locate bracket on wall stud, measure approximately 18" up
from finished floor level. (Height may vary according to
individual preference.)
MODEL 361
3. Refer to Figure 4. Model 361 for using 360 inlet. Nail bracket
MODEL 329
SIDE
MOUNTING
FACE
MOUNTING
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. For front stud mounting, use locating tabs on bracket for
proper alignment.)
4. Refer to Figure 5. Model 329 for use with 330 inlets. 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.
6. When using Model 329 glue elbow to mounting plate.
NOTE: Configuration of spacer may vary depending upon
installation.
NOTE: When using the Model 361 inlet bracket on walls
thinner than 1⁄2", use a 1⁄4" spacer (not furnished) between
the wall and the inlet bracket. See Figure 5A.
Spacer may be made from plywood, masonite, etc. Contact
cement may be used to hold spacer in place during assembly.
23/8"
113/16"
FIGURE 4
SPACER
1/4"
WALL LESS THAN
1/2" THICK.
INLET MOUNTING
BRACKET
31/4"
PLASTER
GUARD
HOLE
21/4"
FIGURE 5A
FIGURE 5
INSTALLING THE TUBING
INSTALLATION HINTS
MODEL 361 MOUNTING
Use the following installation guidelines when installing the
tubing.
21/2" DIA. HOLE
THROUGH SOLE PLATE
1. Start tubing installation at farthest inlet and work toward the
power unit.
23/8"
113/16"
2. Tubing run to the power unit should be as straight as
possible.
113/16"
113/16"
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.
SIDE
MOUNTING
FACE
MOUNTING
MODEL 329 MOUNTING
21/2" DIA. HOLE
THROUGH SOLE PLATE
2"
5. Secure tubing to joists or studs.
2"-382s
2 / -382
6. Refer to Figure 20 on page 7. Run low voltage wiring and
secure wiring to tubing. Leave approximately 6" of wire for
connection to each inlet.
5
8
FACE
MOUNTING
FIGURE 6
4
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TUBING INSTALLATION
INCLUDE FITTING
RECESS IN
1. Cut a 21⁄2" diameter hole in sole plate, header or stud directly
in line with opening of inlet bracket fitting. Note Figures 6
and 4 for center line dimensions.
MEASUREMENT
3/4"
3/4"
TUBING MEASUREMENT
PVC TUBING
2. Refer to Figure 7. Measure length of tubing needed to
connect inlet to trunk line. Allow approximately 3⁄4" of tubing
for inserting into fittings.
FITTING
FITTING
FIGURE 7
3. Refer to Figure 8. Cut tubing, keeping cut square.
4. Refer to Figure 9. Remove burrs from both inside and
outside of tubing.
5. Before cementing, pre-assemble section to inlet fitting, check
for proper length.
6. Refer to Figure 10. Apply cement (Model 379) to outside of
tubing. Coat tubing approximately 1" back. Take care to keep
cement from inside of tube.
7. Refer to Figure 11. Insert tubing into fitting with a twisting
motion to evenly spread cement. Be sure tubing is firmly
seated in fitting.
8. If fittings have been attached to tubing at the end opposite the
inlet bracket, be sure alignment is proper before cement sets.
9. Refer to Figure 12. Low voltage wiring (Model 376) should
be completed as tubing is installed. Tape wire to tubing to
hold in place and insert through hole in inlet bracket.
FIGURE 8
FIGURE 9
NAIL PLATE INSTALLATION
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.
FIGURE 10
FIGURE 11
FIGURE 12
5
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WALL INLET INSTALLATION
MODEL 360 WALL INLET(361 Rough in)
1. Once the walls have been finished, install the wall inlets.
2. Remove the cardboard plaster guard.
3. Refer to Figure 13. For some dry wall 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.
4. Refer to Figure 14. Connect 2-conductor low voltage wire to
terminal screws on back of wall inlet.
FIGURE 13
FIGURE 14
5. Guide excess wire back through hole in inlet bracket and
make sure seal is secure between mounting bracket and
flanged fitting.
6. Refer to Figure 15. Place inlet into mounting bracket and
secure.
NOTE: When wall inlets are installed in 1/2" thick walls or
less, 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. See Figure 16.
For extra thick walls, use Model 399 extension sleeves to
connect inlet to the flanged fitting.
FIGURE 15
MODEL 330 WALL INLET (329 Rough in)
See Figure 17.
1. Connect 2-conductor low voltage wire to terminal screws on
back of wall inlet.
MODEL 365
DOUBLE FLANGED
TEE
WALL
INLET
2. Align inlet mounting holes with holes in mounting plate.
3. Place inlet into mounting plate and secure with two provided
screws.
SHORTEN
MOUNTING
BRACKET
WALL
FIGURE 16
INLET
MOUNTING
PLATE
FIGURE 17
6
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POWER UNIT INSTALLATION
MINIMUM WALL CLEARANCE DIMENSIONS
12"
MOUNTING See Figure 18.
18"
1. Locate the power unit within six feet of a grounded electrical
outlet.
2. Drill 3⁄16" diameter pilot holes for the two (2) mounting screws in a
wall stud or strong support. See Figure 19.
EXHAUST
3. Tighten mounting screws. Leave approximately 1⁄8" to 3⁄16"
clearance between head of screw and wall.
4. Hang power unit onto mounting bolts. Make sure top keyhole
slot and lower slot in mounting bracket are engaged behind
mounting screws. Pull down to secure.
“D”
INTAKE
5. Remove dirt canister from power unit.
TOP VIEW
6. Install soil bag and securely replace dirt canister.
NOTE: Cyclonic model does not use a soil bag.
12" MINIMUM TO CEILING
FRONT VIEW
TUBING CONNECTIONS
1. Using rubber couplings and hose clamps, connect intake and
exhaust tubing to the power unit.
INTAKE
2. Connect intake tubing to lower intake tube on power unit.
3. Connect exhaust tubing to upper exhaust tube on the power unit.
4. Make sure all tubing connections are air tight.
5. The exhaust should not be vented into a wall, a ceiling or a
concealed space in the house. The exhaust line should be
terminated outside the home, using Model 393 Wall Cap or a
roof vent.
“B” TOP
MOUNT
BOLT
EXHAUST
“C”
“A”
OVERALL
HEIGHT
WIRING See Figure 20.
Grounding Instructions – This appliance must be grounded. If
it should malfunction or breakdown, grounding provides a path of
least resistance for electric current to reduce the risk of electric
shock. This appliance is equipped with a cord having an
equipment-grounding conductor and grounding plug. The plug
must be plugged into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and ordinances.
Danger – 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 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.
This appliance is for use on a nominal 120-volt circuit and has a
grounding plug. Make sure that the appliance is connected to an
outlet having the same configuration as the plug. No adapter
should be used with this appliance.
1. Connect low voltage wire (18 gauge, 2-conductor, Model 376) to
two low voltage wires located on outside of the power unit.
2. The power unit is equipped with a six foot grounded cord. Plug
cord into 120 volt grounded receptacle.
18" MINIMUM
ABOVE FLOOR
FIGURE 18
DIMENSIONAL CHART
MODEL
DIMENSION
CV-352
27"
A
B
C
D
73⁄4
61⁄2
"
"
"
135⁄8
TOP OF POWER UNIT
TOP
KEYHOLE SLOT
NOTE: POWER UNIT
WIRING
CONTROL LEADS ARE
TO BE CONNECTED TO
INLET LEADS WITH
SUITABLE WIRE
POWER UNIT
CONTROL LEADS
CONNECTORS.
POWER CORD
111/2"
POWER
UNIT
120vAC ELECTRICAL
OUTLET
INLET
LEADS
MODEL 376 (18/2) WIRE
TO
OTHER
INLETS
LOWER
SLOT
MOUNTING
BRACKET
FIGURE 19
FIGURE 20
INLET
INLET
INLET
7
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INSTALLATION IN EXISTING CONSTRUCTION
Built-In Appliances. In a home where the kitchen features
LAYOUT AND PLANNING
The general layout and planning and the component locations
are the same for existing construction.
See pages 2 and 3.
built-in appliances, you'll often find a hollow space behind these
appliances. If this space lines up with an obstruction-free interior
wall above or a closet, this might be a “key” to your installation.
In a ranch-style home, this “key” would provide access to run
tubing from a basement located power unit to an attic trunk line.
You may also want to consider running exposed tubing through
cabinets or cupboards. See Figure 22.
LOCATING ACCESS KEYS
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. What you're looking for is an accessible
area that is free from obstructions and will accommodate the
2" tubing.
Laundry Chute. Pictured here is tubing run from the basement
to the attic through a laundry chute. A dumb-waiter would serve
the same purpose. See Figure 22.
Let's say, for example, you have a two-story house and you
want to locate the power unit in the basement. The first floor
inlets can easily be connected to a trunk line which runs along
the basement ceiling. However, 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?
Some of the “keys” you might find in your home are illustrated
here.
Stacked Closets. 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 Fi
FIGURE 22
Cold-Air Return. A cold-air return often provides a straight run
from basement to other levels of the house. The ductwork is
easily cut for access. Seal around the tube when completing the
installation. See Figure 23.
FIGURE 21
FIGURE 23
WALL INLET INSTALLATION
Use the following procedures for installation in existing
construction.
1. See Figure 24. A small “Pilot” or “Locating” hole can be
drilled behind baseboard toe strip to determine proper
location of 21⁄2" diameter tubing hole in sole plate.
2. Measure the total thickness of the wall, including baseboard.
One half of this wall thickness measured from the Pilot Hole
(dimension “X”) will determine the proper location of the 21/2"
tubing hole in the sole plate.
BASEBOARD
TOE STRIP
3. See Figure 24. Once desired inlet locations have been
determined, cut a 21⁄2" hole in soleplate directly in line with
proposed inlet location. Check through tubing hole to be sure
no obstruction exists.
SOLE PLATE
PILOT HOLE
“X”
FIGURE 24
8
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4. Be sure tubing hole is centered in sole plate and directly in
line with proposed wall inlet cutout.
NOTE: If 330 wall inlet is being used refer to Model 330 Wall
Inlet Installation on next page.
5. If area is clear, cut an inlet opening in the wall approximately
18" above the floor. Make sure wall opening and 21⁄2" tube
hole line up (Figure 25).
FLANGED
FITTING
6. Cut a length of tubing that will extend from inlet opening to a
point below floor level (or above ceiling level in attic
installation). Tape low voltage wire to tube and insert tube
through predrilled hole to a level opposite the wall opening.
7. Apply cement to tube and install flanged wall fitting. Make
sure fitting is well seated and sealed (Figure 26).
8. Remove plaster frame from mounting bracket. Pull low
voltage wire through hole in bracket and insert bracket into
cutout. Secure bracket to flanged fitting with four screws
provided. Be sure seal is secure between flange fitting and
mounting bracket (Figure 27).
LOW
VOLTAGE
WIRING
9. Starting from farthest wall inlet location, install each inlet as
described above. Working back toward power unit, connect
each branch line into main trunk line. Complete low voltage
wiring as main trunk line is continued back to power unit.
10. Attach the low voltage wires to terminal screws on back of
wall inlet (Figure 28).
FIGURE 26
11. Insert wall inlet into bracket and secure with the two screws
provided (Figure 29).
12. Mount power unit and complete wiring. See page 7.
31/16"
29/16"
21/2"
18"
FIGURE 27
FIGURE 25
NOTE: If the wall for mounting the Model 360 inlet is less
than 1⁄2", a spacer must be used. See Figure 5A as a
guide.
FIGURE 28
FIGURE 29
9
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MODEL 330N WALL INLET INSTALLATION
1. Make cutout according to dimensions in Figure 30.
2. Refer to Figure 31. Break off nail plate at scored line.
3. Refer to Figure 32. Glue elbow to mounting plate, place
assembly into cutout, and attach elbow to tubing inside
the wall.
5. Connect 2-conductor low voltage wire to terminal screws on
back of wall inlet.
6. Refer to Figure 33. Align inlet mounting holes with mounting
plate holes, place inlet into mounting plate, and secure with
provided screws. NOTE: If 382-S shorter radius elbow is
used, it may be necessary to use the short mounting screw to
avoid interference with elbow.
4. Make sure mounting holes are exactly at top and bottom.
1/4"
23/4"
MOUNTING
PLATE
3/8" DIA.
ELBOW
37/8"
INLET
3/8" DIA.
MOUNTING
HOLE (2)
MOUNTING
PLATE
13/8"
1/4"
FIGURE 30
FIGURE 31
FIGURE 32
FIGURE 33
FLOOR INLET INSTALLATION
INSTALLATION IN NEW AND EXISTING CONSTRUCTION
1. Refer to Figures 34 and 35. After floor inlet location has
been selected, cut a 31⁄16" x 29⁄16" square hole in floor. Center
line of inlet must be located at least 21⁄2" from wall to allow
cover to be opened when hose is inserted.
2. Determine direction of tubing and attach appropriate flanged
fitting to mounting bracket with four (4) screws supplied. Be
sure mounting bracket flange does not interfere with
tubing and seal is securely in place.
4. Refer to Figure 37. Large end of Model 399 extension sleeve
should be cut to length to allow proper seating of inlet against
floor or carpet.
5. Refer to Figure 38. Pull Low Voltage 2-Conductor wire
through mounting bracket and attach to terminal screws on
back of floor inlet. Cement extension sleeve to Model 360
inlet. Insert extension sleeve through vinyl gasket in mounting
bracket and firmly seat into flanged fitting.
6. For convenience of operation, floor inlet should be installed to
open back toward wall.
7. Refer to Figure 36. Secure floor inlet in place with two
3. Refer to Figure 36. Position bracket with frame and flanged
fitting assembly into cutout from below and secure to sub
floor.
screws.
21/2" MIN.
APPROX.
SIDE VIEW
TOP VIEW
29/16"
31/16"
MOLDING
WALL
MOUNTING BRACKET
FLANGE
FIGURE 34
10
FIGURE 35
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CUT TO
LENGTH
FLOOR
INLET
INLET
EXTENSION
EXTENSION
SLEEVE
29/16"
31/16"
FLOOR
SUB-FLOOR
MOUNTING
BRACKET
FLANGE
FLANGED
FITTING
FRAME
FIGURE 37
MOUNTING
BRACKET
SEAL
WALL
INLET
FLANGED
FITTING
FIGURE 36
EXTENSION SLEEVE
BRACKET
FLANGED FITTING
TUBING
FIGURE 38
FINAL SYSTEM CHECK
Be sure all inlets are closed and soil bag is in place. Check
switch on power unit for manual on/off operation.
Check each wall inlet to be sure contacts activate power unit
when hose is inserted. A short piece of wire can be used to
short contacts in wall inlet together to activate power unit. Check
each wall inlet and tubing connection for air leaks. Check power
unit for leaks around inlet tube and dirt receptacle.
Installer, will you please make sure a bag is installed in the
power unit. Remove the extra bag and owner's manual from the
power unit dirt receptacle and leave them with the cleaning
attachments for the convenience of the Home Owner…
Thank You.
11
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Two Year Limited Warranty
WARRANTY OWNER: NuTone warrants to the original consumer purchaser of its products that such products will be free from defects in materials or workmanship for a period
of two (2) years from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
During this two year period, NuTone will, at its option, repair or replace, without charge, any product or part which is found to be defective under normal use and service.
THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS OR TUBES, FILTERS, DUCT, ROOF CAPS, WALL CAPS AND OTHER ACCESSORIES
FOR DUCTING. This warranty does not cover (a) normal maintenance and service or (b) any products or parts which have been subject to misuse, negligence, accident,
improper maintenance or repair (other than by NuTone), faulty installation or installation contrary to recommended installation instructions.
The duration of any implied warranty is limited to the one year period as specified for the express warranty. Some states do not allow limitation on how long an implied warranty
lasts, so the above limitation may not apply to you.
NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT NUTONE’S OPTION, SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS
WARRANTY. NUTONE SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH
PRODUCT USE OR PERFORMANCE. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may
not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty supersedes all prior warranties.
WARRANTY SERVICE: To qualify for warranty service, you must (a) notify NuTone at the address stated below or telephone 1/800-543-8687, (b) give the model
number and part identification and (c) describe the nature of any defect in the product or part. At the time of requesting warranty service, you must present
evidence of the original purchase date.
Date of Installation
Builder or Installer
Model No. and Product Description
IF YOU NEED ASSISTANCE OR SERVICE:
For the location of your nearest NuTone Independent Authorized Service Center:
Residents of the contiguous United States Dial Free 1-800-543-8687
Please be prepared to provide:
Product model number • Date and Proof of purchase • The nature of the difficulty
Residents of Alaska or Hawaii should write to: NuTone Inc. Attn: Department of National Field Service, 4820 Red Bank Road, Cincinnati Ohio 45227-1599.
Residents of Canada should write to: Broan-NuTone Canada, 1140 Tristar Drive, Mississauga, Ontario, Canada L5T 1H9.
Rev. 03/2001
Product specifications subject to change without notice.
Printed in U.S.A., Rev. 4/01, Part No. 84912
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