NuTone qt700 User Manual
CERTIFIED TEST DATA
HVI-2100 CERTIFIED RATINGS comply with new testing
technologies and procedures prescribed by the Home
Ventilating Institute, for off-the-shelf products, as they are
available to consumers. Product performance is rated at 0.1
in. static pressure, based on tests conducted in AMCA's
state-of-the-art test laboratory. Sones are a measure of
humanly-perceived loudness, based on laboratory
measurements.
This NuTone model is listed by Underwriters'
Laboratories Inc. and Certified by the Canadian Standards
Association (CSA.)
Architectural & Engineering Specifications
March 2004
QuieTTest Twin
Blower Ventilator
(For Ceiling Use)
MODEL: QT700
DESCRIPTION
• Large capacity NuTone QuieTTest ventilation unit for
light commercial or large residential settings. Also
for in-line use as part of a central ventilation system.
• Corrosion resistant galvanized steel fan housing is
lined with sound-deadening foam for quiet operation.
• Motor and twin blowers dynamically balanced
for smooth, quiet operation.
• Vents horizontally or vertically with 6" x 19" duct.
Duct collar with quiet backdraft damper included.
• Slots on housing sides provide alternative
mounting methods.
• Wiring knockouts located on the top and back
of the housing.
• NuTone wall switch sold separately.
• Refer to NuTone's catalog for a complete line
of accessories to effectively adapt this fan to your
construction requirements.
DESIGN FEATURES
Air Delivery: Vented Horizontally: 720 CFM
(340 L/s) at .1"(25 Pa) S.P.
Vented Vertically: 730 CFM
(345 L/s) at .1"(25 Pa) S.P.
Sound Level: Vented Horizontally: 5.0 Sones.
Vented Vertically: 5.0 Sones.
Dimensions: Housing: 2111⁄16" L x 157⁄16" W x
147⁄16" D.
Grille: 233⁄8" L x 171⁄8" W.
Material & Finish: Housing: .033 (20 gauge) galvanized
steel with sound-deadening foam
lining.
Grille: .0279 (22 gauge) cold rolled
steel with white baked enamel finish.
Motor:
1
⁄13H.P., 8 Pole Type P.S.C.,
750 RPM, 1.3 amps at 120v, 60 Hz.
Rated for continuous duty.
Blower Wheel: Two (2) 1⁄2" bore steel blowers: 1-cw,
1-ccw. 743⁄64" O.D. x 4" deep.
Duct Size: 6" x 19". Duct collar with damper
included.
INSTALLATION
• Not for use in kitchens.
• Unit is designed for optional mounting methods in a
ceiling application utilizing slotted mounting brackets.
• Grille attaches with screws.
• Controls purchased separately.
• Installation Instructions are provided with each unit.
ARCHITECT'S SPECIFICATIONS
Twin-Blower Ventilator shall be NuTone Model QT700
as manufactured by NuTone according to listed
specifications. Unit shall ventilate 720 CFM vented
horizontally or 730 CFM vented vertically at .1" S.P.
at a sound level rating of 5.0 sones vented horizontally
or vertically.
Housing shall be 2111⁄16" long x 157⁄16" wide x 147⁄16" deep
and shall connect to 6" x 19" duct.
1. Determine the equivalent duct length for each 90
degree elbow by adding one foot of duct length for
each inch of duct diameter, i.e., a 4 inch diameter duct
elbow equals 4 feet equivalent duct length and an
8 inch diameter duct elbow equals 8 feet equivalent
duct length.
2. Add the total straight length of duct and the equivalent
length for each elbow to obtain the total equivalent
duct length.
3. Locate the intersection of the fan performance curve
and the total equivalent duct length curves and draw a
vertical line down to the CFM scale and read the system
air performance.
(NOTE: 31⁄4" x 10" duct equals 6 inch diameter duct.)
250
0
0.0 0
0.10
0. 20
0.3 0
0.4 0
0.5 0
STATIC PRESSURE–INCHES OF WATER
50 Feet
40 Feet
30 Feet
20 Feet
10 Feet
CFM CUBIC FEET PER MINUTE
100075 050 0 1250
250
0
0.0 0
0.10
0. 20
0.3 0
0.4 0
0.5 0
STATIC PRESSURE–INCHES OF WATER
50 Feet
40 Feet
30 Feet
20 Feet
10 Feet
CFM CUBIC FEET PER MINUTE
100075 0500 1250
AIR PERFORMANCE CURVE – Horizontal
(12 In. (6 x 19) Duct to 10 Foot Lengths)
AIR PERFORMANCE CURVE – Vertical
(12 In. (6 x 19) Duct to 10 Foot Lengths)
STATIC PRESSURE
INCHES OF WATER
CFM
0.05
775 735 686 640 575 400 – – –
0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45
STATIC PRESSURE
INCHES OF WATER
CFM
0.05
770 727 675 600 475 275 125 – –
0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45
1815⁄16"
DAMPER
SECTION
15
7
⁄16"
HOUSING
21
11
⁄
16
"
7"
MOUNTING
BRACKET
14
7
⁄
16
"
5
7
⁄
8
"
MOTOR
ASSEMBLY
GRILLE
MOUNTING
SCREWS (4)
DIMENSIONS
The air delivery of a ventilating system may be determined by:
Product specifications subject to change without notice.
NuTone, Inc., 4820 Red Bank Road, Cincinnati, Ohio 45227
Broan-NuTone Canada, Inc., 1140 Tristar Drive, Mississauga, Ontario, Canada L5T 1H9
Printed in U.S.A.
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