Locating The Power Unit; Tubing And Wall Inlet Locations - NuTone VX1000C Installation Instructions Manual

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. This trunk line con-
nects 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.

LOCATING THE POWER UNIT

• Locate the power unit at the lowest possible position
away from the general living area in an accessible
location for changing the filter bag or debris bucket.
• 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 VX475 and VX550 power units
require a 120v 20 amp AC power source. The
VX1000 power units require a 240vAC, 15 amp cir-
cuit with a NEMA 6-15R receptacle.
• 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. The exhaust
should not be vented into a wall, a
ceiling or a concealed space in the house. The
exhaust line should be vented outside the home
using a Model 393 or CI330 wall caps.
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.
3. 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. If working from
blueprints (or building plans drawn at 1⁄4" = 1 ft.
scale), use a 7 1⁄2" chain as your guide to
determine inlet locations.
4. Locate inlets within six feet of an electrical receptacle
to allow use of optional current-carrying hose.
5. Be sure inlets will not be blocked by doors
or furniture
6. Be sure inlets will not interfere with electrical, plumb-
ing or other mechanical installations.
7. Move tentative inlet location if necessary. Use the
same procedure to determine each additional inlet
location, always working toward the power unit.
4
FIGURE 3