BUILT-IN CENTRAL CLEANING SYSTEM INSTALLATION INSTRUCTIONS For Power Unit Models VX475, VX550, VX1000, VX475C, VX550C, and VX1000C Broan-NuTone LLC Hartford, Wisconsin www.nutone.com 888-336-3948 To register this product, visit www.nutone.com Part No. 30042322 rev.
TABLE OF CONTENTS SYSTEM PLANNING AND LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Locating the Power Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
THE SPLIT-LEVEL HOUSE 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.
GENERAL INSTALLATION GUIDE ! WARNING 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. TOOL LISTING Depending on your installation, you may require the use of these tools. The power tools are recommended to make your installation proceed quickly.
Making a Joint Cementing Flexible Tubing Insert the tube into the fitting, aligning the two parts as they will be installed. Mark the tube and the fitting so that you can quickly realign the joint. See Figure 7. Make sure the ends of the flexible tubing are even—trim if necessary. When you join 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.
INSTALLATION IN NEW CONSTRUCTION WALL INLET ROUGH-IN Once the locations for the wall inlets have been determined, mount all inlet brackets. Wall Valve Series 1. Choose the appropriate mounting bracket for the inlet being installed. (See chart) 395 396-1 396-3 X X X 330 360 CI335 CI358 CI370 CI390 CI395 CI398 CI3301RK X Rough-In Series CI3303RK CF329 X X CF361 CF361F X X X X CI395RK X Rough-in and wall valve sold together X X X X X X X X 2.
INSTALLING THE TUBING MODEL CF361 MOUNTING 2½” DIA. HOLE THROUGH SOLE PLATE Use the following installation guidelines when installing tubing. 2 /8” 3 1. Start tubing installation at farthest inlet and work toward the power unit. 113/16” 113/16” 113/16” 2. Tubing run to the power unit should be as straight as possible. SIDE MOUNTING 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.
WALL INLET INSTALLATION Model CI370 Wall Inlet (CF361 and CF361F Rough-In) 1. Remove the cardboard plaster guard. 2. Refer to Figure 20. 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 CF361 and CF361F inlet bracket on walls thinner than 1⁄2", use a 1⁄4" spacer (not furnished) between the wall and the inlet bracket. See Figure 23.
CI390 & CI395 ELECTRAVALVE™ ELECTRIFIED INLET INSTALLATION (CI395RK ROUGH-IN) 1. See Figure 27. 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.
C1358 SUPERVALVE™ WALL INLET & ROUGH-IN KIT FIGURE 29 See Figure 29 AL0008 SAFETY INSTRUCTIONS FOR HOUSEHOLD USE ONLY. INSTALL ONLY ON A NOMINAL 120 V, 60 Hz, 7 A SUPPLY PROTECTED BY A MAXIMUM 15 A OVERCURRENT PROTECTIVE DEVICE. THE PIN CONNECTOR ON THIS TYPE A WALL VALVE IS INTENDED FOR USE ON A NOMINAL 120 V, 60 Hz, 7 A SUPPLY ONLY. IT IS REQUIRED TO BE WIRED BY A QUALIFIED ELECTRICIAN AND IS REQUIRED TO CONFIRM TO LOCAL ELECTRICAL CODES.
INSTALLATION IN EXISTING CONSTRUCTION LOCATING ACCESS KEYS IN EXISTING CONSTRUCTION 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.
INSTALLING THE INLET TUBING Locating Basement Access Holes When your planning is complete, you will have to determine where all the inlets and the power unit will be located. You have also mapped out the location of your trunk line and found the access you need to run vertical tubing from one level of your house to another level. You should have acquainted yourself with the methods of joining plastic tubing and acquired the tools you’ll need to install your NuTone Central Vacuum System.
Drilling the Access Holes Once you are certain that you’ve located the center of the wall directly above the inlet location, use a 2½” hole saw to cut the access hole through the wall plate or header and into the wall cavity. (A 1/2” drill is recommended.) Carefully remove the drill from the hole. Cut a piece of low voltage wire which is long enough for the complete inlet line, allowing 6” for connections to the inlet wall plate. Secure the wire to the tubing with electrical tape.
WALL INLET INSTALLATION The wall inlet design allows you to work outside the wall —where assembly is easy and all the parts you need are accessible. First, you make a cutout into the wall and locate the flexible tubing attached to the inlet line which you previously threaded into the wall. Then, you attach the flexible tubing to the inlet mounting plate, assemble the other inlet parts, and make the wiring connections.
Attaching the Inlet Mounting Plate Use an awl or icepick to punch pilot holes where you marked the two hole locations. Now, drill two 3⁄8” diameter holes, using the pilot holes as the centers. Locate and drill these holes exactly as marked with the template. Reach through the inlet hole and locate the inlet tubing. Raise it up inside the wall until you locate the inlet tubing.
Installing the Inlet Hold the assembly in place for a few minutes as the cement sets; allow 5 minutes for the cement to completely dry. When you place the inlet into the wall cutout, the mounting plate and tube guard slip inside the wall; the inlet cover remains on the outside. AO0044 Holding the inlet assembly between your thumbs and fingers, angle the bottom of the mounting plate into the cutout. Push the assembly downward until you have clearance at the top of the cutout.
NOTE: If the wall for mounting the Model 360 inlet is less than 1⁄2", a spacer must be used. See Figure 23 on page 9 as a guide. Insert the bottom screw into the inlet cover and through the other parts. Give the screw a few turns until it firmly engages in the mounting plate. Now, level and slightly lower the assembly. Make sure the wall is sandwiched between the inner and outer parts—you’ll be able to feel if mounting plate is firmly centered on the inside of the wall. 2.
6. Refer to Figure 40. Align inlet mounting holes with mounting plate holes, place inlet into mounting plate, and secure with provided screws. 5. Attach the low voltage wires to terminal screws on back of wall inlet (Figure 35). If using 361 Rough-in with CI370 Series Inlets, refer to instructions on page 7, step 3, shown in Figure 10. 1/4" (6 mm) 23/4" (70 mm) 3/8" (10 mm) DIA. Nail Flange 7 3 /8" (98 mm) 3/8" (10 mm) DIA.
6. For convenience of operation, floor inlet should be installed to open back toward wall. FLOOR INLET INSTALLATION IN NEW & EXISTING CONSTRUCTION 7. Refer to Figure 43. Secure floor inlet in place with two screws. Model CI370 or 360 Series Inlets (361 Rough-In) 1. Refer to Figures 41 and 42. 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 2½" from wall to allow cover to be opened when hose is inserted.
ORIGINAL VACPAN ™ INSTALLATION INSTRUCTIONS NOTE: Please read instructions prior to installation. • INSTALLATION TIPS Run vacuum tube piping and low voltage wire from the main piping line to the ORIGINAL VACPAN location. • Access for final piping connections must be made. • Plan the location of your ORIGINAL VACPAN to be conveniently located for sweeping clean-ups. • Also consider ease of access of vacuum tube piping connections during installation.
Access from Below IN WALL INSTALLATIONS If access is available from below, cut an access hole through the subfloor underneath the wall between the studs, positioned so that final piping connections can be made by reaching through the access hole. Refer to Figure 47. • ORIGINAL VACPAN can be installed between wall studs in side walls. • ORIGINAL VACPAN should be located tight to one side in stud space.
ORIGINAL VACUSWEEP ® INLET VALVE INSTALLATION INSTRUCTIONS CONNECTION FROM BELOW Refer to Figure 48. 1. Turn the power to the vacuum unit OFF. Measure distance (X) between the kickplate face and the inside edge of the cabinet. Then, add 2¾” to the measured distance. See Figure 48-1. Measure out the new distance (X+2¾”) from the cabinet door to the reference mark. 2. Drill a small reference hole straight down through to the basement. See Figure 48-2.
CONNECTION FROM BEHIND 4. Using the reference hole as a center, cut a 23⁄8” high x 65⁄8” wide rough opening in the kickplate face. See Figure 49-4. 5. Insert a coupling (part no. CF388) onto the rear of the housing. DO NOT glue this connection (Designed for friction fit). See Figure 49-5. Make the terminal connections to the VacuSweep® Inlet Valve by sliding the low voltage wire into wire clips. Turn the power to the vacuum unit on to test the connection.
VacuSweep® Inlet Valve Rough-in Template wire/string to temporarily hold the pipe and elbow in place, insert the VacuSweep® Inlet Valve into the opening at the base of the wall and elbow. DO NOT glue this connection (Designed for friction fit). See Figure 50-5. 6. Remove the wire/string. With the door in an open position, secure the VacuSweep® Inlet Valve to the wall using no. 6 screws. See Figure 50-6. Ensure that the spring on the electrical connector has 1/8” clearance to rough opening.
ASSEMBLING THE TUBING SYSTEM Beginning the Trunk Line Once you have installed all your inlets, you can complete the network of tubing that connects your inlets to the power unit. This network consists of the following parts: Start the inlet line which is farthest from the power unit. Place 90° elbow onto a section of tubing and align it with the inlet tubing at the height it will run across the attic joists.
Connecting a Branch Line A branch line connects the inlet line to the trunk line. Follow the methods previously described for aligning, marking and cutting the inlet tubing. Attach a 90° elbow and run tubing from the inlet line to the trunk line. Joining Straight Lengths of Tubing Both branch lines and the trunk lines may require lengths of tubing longer than those 8´ sections supplied. Use stop couplings to join two straight lengths of tubing.
Circumventing an Obstacle Completing the Trunk Line Wherever possible the branch lines should connect to the trunk line in straight paths. The fewer turns in a tubing system, the more efficient air flow. Accordingly, you should locate the inlets to avoid zig-zags in the branch lines. But, sometimes, when you just can’t avoid an obstacle, you are required to construct the tubing around it. Continue to run the trunk line toward the power unit, connecting all branch lines as you go along.
Connecting the Low Voltage Wiring Assembling a Basement Trunk Line Ideally, you will run the wiring and make all the wiring connections after you have completed the tubing system. Of course, the inlet wiring must be run at the time the inlet tubing is threaded through the walls. Basically, the tubing network is assemble the same way for a basement installation. Begin the trunk line at the farthest inlet line from the power unit.
Using Flexible Tubing The supplied 36˝ length of flexible tubing may be used to circumvent an obstacle or to make a difficult turn. In the example illustrated here, the flexible tubing is used in order to run a branch line under a support beam. Attach this tubing to the PVC tubing, cementing only the outside of the PVC tubing as you would for a hard-fitting connection. Whenever you use the flexible tubing, you must secure both ends of it with support strapping.
POWER UNIT INSTALLATION Refer to page 4 for information on locating the power unit. ! MOUNTING WARNING Do not install outdoors. This section refers to Figures 51 and 52. MINIMUM WALL CLEARANCES CAUTION On models VX475, VX550 and VX1000, DO NOT REMOVE either DO NOT REMOVE W of the grey seals covering the BOTTOM red cap plugs. Removing ne pas enlever G these seals will void the warranty. Only remove and use the outlets covered by the TOP green plugs.
TUBING CONNECTIONS POWER UNIT AT BAGGED This section refers to Figures 53 and 54. EXHAUST Your VX Series power units are capable of being connected to the intake vacuum trunk line from either side. Select the intake connection to be used. On some installations, you may connect the vacuum air intake into both intakes. “B” CENTER OF EXHAUST TO MOUNTING BRACKET HOLES MOUNTING BRACKET HOLES INTAKE “C” CAUTION Models VX475, VX550 and VX1000 will attach to the upper intake connections. See Figure 53.
WIRING This appliance is for use on a standard 120 V a.c., dedicated 20-amp branch circuit with a NEMA 5-20R receptacle for VX475 and VX550 models. For VX1000 models, a nominal 240 V a.c., dedicated 20-amp branch circuit with NEMA 6-20R receptacle is required. Make sure that the appliance is connected to an outlet and has a grounding attachment plug that looks like the plug shown in either Figure 55 or 56 depending on the model. No adapter should be used with this appliance.
FINAL SYSTEM CHECK Make sure the filter bag is properly installed in the power unit according to directions printed on the bag or in homeowner’s manual. Remove the extra bag and owner's manual from the power unit dirt receptacle. It may be convenient to store them with the cleaning tools and accessories. Be sure all inlets are closed and soil bag (for VX475, VX550 & VX1000 models) is in place. Check switch on power unit for manual on/off operation.
WARRANTY For Models VX475 & VX475C 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 and workmanship for a period of two (2) years from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TROUBLESHOOTING GUIDE Read Before Calling Service Center Trouble Possible Cause 1. Loss or decrease of vacuum occurs. 1a. Disposable filter bag or debris bucket are completely full. 1b. Obstruction in the hose. A blockage in the hose can be determined by inserting the hose into any wall inlet and, while power unit is running, check each additional inlet for normal suction by holding the palm of your hand over the open inlet.
Possible Remedy 1a. Remove disposable filter bag or empty debris bucket as described in Homeowner’s Guide and install replacement. 1b. Insert handle end of hose into utility valve at power unit. Turn unit on. This will reverse normal air flow through the hose and dislodge any clogs. 1c. Insert hose end into any inlet with power unit running, place the palm of your hand over the opposite end of the hose.
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926 WEST STATE STREET, HARTFORD, WI 53027 WWW.NUTONE.COM WARRANTY All VX Power Units are covered by a NuTone 2, 4, or 8 year warranty. Refer to your Model Number for which warranty you have. Tools and Accessories warranted for one year from date of purchase. See page 35 for details. Product specifications subject to change without notice.
