Broan-NuTone LLC Hartford, Wisconsin www.nutone.com 888-336-3948
PERFORMANCE RATINGS - MODEL HD50NT
AMCA LICENSED PERFORMANCE
AMPS
MODEL
AMPS
NUMBER
HD50NT
0.4
WEIGHT
MODEL NO.
SHIPPING WT.
HD50NT
7.1 lbs.
NuTone Inc. certifies that the
models shown herein are
licensed to bear the AMCA
Seal. The ratings shown are
based on tests and procedures
performed in accordance with
AMCA Publication 211 and
AMCA Publication 311 and
comply with the requirements
of the AMCA Certified Ratings
Program.
HVI PERFORMANCE
MODEL NUMBER
SONES
CFM @0.1’’ Ps
HD50NT
1.5
50
Model
Nominal
No.
0.0
0.1
.125
.250
.375
Volts
Watts
RPM
Duct Size
HD50NT
CFM
61
51
48
31
9
120
30
1070
4” Round
Sones
1.9
2.2
2.3
3.0
3.3
*There is a difference between sone values certified by HVI for residential
use and by AMCA for commercial/industrial use. Exact comparison of these
values is not possible. This difference is mainly due to the procedures used
to convert measured sound to perceived sound. ANSI S3.4, used by both HVI
and AMCA, specifies a procedure for calculating loudness as perceived by a
typical listener under specific conditions. HVI establishes values at a distance
of 5 feet from the fan in a “spherical free field’’; AMCA establishes values at
a distance of 5 feet in a “hemispherical free field”. HVI results are rounded to
the nearest 0.5 sone, AMCA to the nearest 0.1 sone.
SONES
Static Pressure (in. wg Ps)
The performance ratings include the effects of inlet grille and backdraft damper in the airstream. Speed (RPM) shown is nominal. Performance is based on actual speed
of test. The sound ratings are loudness values in fan sones at 5’ (1.5m) in a hemispherical free field calculated per AMCA Std. 301. Values shown are for Installation Type
B: Free inlet fan sone levels. Air performance shown is for Installation Type B: Free inlet, Ducted outlet.
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.
Model
HVI Sones
AMCA Sones
Number
@ 0.1” Ps*
@ 0.0” Ps*
HD50NT
1.5
1.9