Standard Test Method for Motor Life Evaluation of an Electric Motorized Nozzle for Central Vacuum Cleaning Systems

SIGNIFICANCE AND USE
4.1 The test results provide an indication of the motor life of an electric motorized nozzle. The end of motor life will be judged in accordance with Section 3.
SCOPE
1.1 This test method covers the motorized nozzle used in household or commercial central vacuum cleaning systems.  
1.2 This test method provides a test for determining operating motor life in hours by an accelerated laboratory procedure. The motors are tested while mounted and operated in the motorized nozzle.  
1.3 This test method covers only the motorized nozzle. The system used to provide the airflow source is not under consideration.  
1.4 This test method is limited to the determination of motor life for an electrically powered household or commercial motorized nozzle.  
1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Publication Date
31-Aug-2023
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ASTM F1601-01(2023) - Standard Test Method for Motor Life Evaluation of an Electric Motorized Nozzle for Central Vacuum Cleaning Systems
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F1601 − 01 (Reapproved 2023)
Standard Test Method for
Motor Life Evaluation of an Electric Motorized Nozzle for
Central Vacuum Cleaning Systems
This standard is issued under the fixed designation F1601; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E337 Test Method for Measuring Humidity with a Psy-
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
1.1 This test method covers the motorized nozzle used in
peratures)
household or commercial central vacuum cleaning systems.
F431 Specification for Air Performance Measurement Ple-
1.2 This test method provides a test for determining oper-
num Chamber for Vacuum Cleaners
ating motor life in hours by an accelerated laboratory proce-
F608 Test Method for Evaluation of Carpet Embedded Dirt
dure. The motors are tested while mounted and operated in the
Removal Effectiveness of Household/Commercial
motorized nozzle.
Vacuum Cleaners
1.3 This test method covers only the motorized nozzle. The F655 Specification for Test Carpets and Pads for Vacuum
Cleaner Testing (Withdrawn 2022)
system used to provide the airflow source is not under
consideration.
3. Terminology
1.4 This test method is limited to the determination of motor
3.1 Definitions of Terms Specific to This Standard:
life for an electrically powered household or commercial
3.1.1 motor life—limited by failure of the motor; failure is
motorized nozzle.
motor stoppage.
1.5 The values stated in inch-pound units are to be regarded
3.1.1.1 Discussion—Any failure integral with the motor,
as the standard. The values given in parentheses are for
such as armature assembly, field assembly, housing(s)
information only.
bearings, motor cooling fan, carbon brush assemblies, motor-
1.6 This standard does not purport to address all of the mounted non-resettable thermal protective devices, or any
safety concerns, if any, associated with its use. It is the
other component judged to be integral with the motor, shall be
responsibility of the user of this standard to establish appro- judged as motor stoppage.
priate safety, health, and environmental practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accor-
4.1 The test results provide an indication of the motor life of
dance with internationally recognized principles on standard-
an electric motorized nozzle. The end of motor life will be
ization established in the Decision on Principles for the
judged in accordance with Section 3.
Development of International Standards, Guides and Recom-
5. Apparatus and Materials
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5.1 Voltage Regulator System—to control the input voltage
to the motorized nozzle. The regulator system must be capable
2. Referenced Documents
of maintaining the motorized nozzle’s rated voltage 61 % and
rated frequency 61 Hz with a wave form that is essentially
2.1 ASTM Standards:
D75 Practice for Sampling Aggregates sinusoidal, with 3 % maximum harmonic distortion for the
duration of the test.
5.2 Voltmeter, to provide measurements accurate to within
This test method is under the jurisdiction of ASTM Committee F11 on Vacuum
61 %.
Cleaners and is the direct responsibility of Subcommittee F11.30 on Durability-
Reliability.
5.3 Timer and Switch, having the capacity to control the
Current edition approved Sept. 1, 2023. Published September 2023. Originally
off/on duty cycle of the nozzle and air flow source during the
approved in 1996. Last previous edition approved in 2016 as F1601 – 01 (2016).
DOI: 10.1520/F1601-01R23.
life test.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1601 − 01 (2023)
5.4 Wattmeter, to provide measurements accurate to within that shall be connected to the platform with a suitable link (see
61 %. Fig. 1). This device shall provide means to hold the motorized
nozzle fixed securely by its handle in the operating position
5.5 Sharp Edge Orifice Plate, with a 1 ⁄4-in. (32-mm)
while it is in contact with the reciprocating surface. The
diameter and in accordance with the orifice plate illustrated in
motorized nozzle shall be restrained suitably in the horizontal
Specification F431.
operating plane yet allowed freedom of movement in the
5.6 Plenum Chamber, conforming to the plenum chamber
vertical plane for operation.
specifications given in Specification F431.
5.14.1 Option—The motorized nozzle can be subjected to
the same cycle as that stated in 5.14 while the carpeted
5.7 Water Manometer, or equivalent instrument, measuring
in increments of 0.1 in. (2.54 mm). platform is held stationary (see Fig. 1).
5.14.2 For either option, the reciprocating motion shall
5.8 Barometer, with an accuracy of 60.05 in. (1.27 mm)
follow the same duty cycle as that specified for the vacuum
Hg, capable of measuring the uncorrected barometric pressure
cleaner or airflow source and motorized nozzle in 7.7.
(test station pressure) with scale divisions of 0.02 in.
5.14.3 The motorized nozzle’s airflow source shall be sta-
(0.51 mm) or finer.
tionary and positioned so that the hose will be submitted to
5.9 Thermometer, having a range of at least 18 °F to 80 °F
minimum stress.
(−8 °C to +27 °C) and graduated in 1 °F (0.5 °C) increments.
5.15 Test Dirt, Wedron sand/talc mixture. See Annex A1.
5.10 Psychrometer, meeting the requirements of Test
Method E337, with thermometers graduated in increments of 6. Sampling
1 °F (0.5 °C).
6.1 Test a minimum of three units (or a larger sample size,
5.11 Test Carpet, conforming to the specifications for level if desired) of similar models using the same motor style and
loop carpet as described in Specification F655. A carpet that amperage. Select all samples at random in accordance with
good statistical practice. The results shall provide an 80 %
provides equivalent nozzle loading results may be used.
confidence level within 610 % of the mean value. If not, test
5.12 Carpet Padding, conforming to the padding described
additional samples or reduce the results by the penalty factor as
in Specification F655.
calculated in 7.12.
5.13 Test Cleaner or Airflow Source—The motorized nozzle
motor life evaluation tests shall be conducted using the airflow 7. Procedure for Motor Life Evaluation
source and voltage resulting from the components that com-
7.1 Determine the initial performance. The suction of the
pose the combination system with which the motorized nozzle
cleaner or airflow source, with the motorized nozzle attached,
is to be used. If used with several systems, the one with the
is to be determined and will be used to ensure that no leaks
maximum airflow shall be used.
develop to reduce load on the nozzle during the test. For this
5.13.1 Option—A simulated airflow source and adjusted
initial test, the nozzle opening is to be sealed to the ASTM
voltage may be used if they are equal to or exceed the central
plenum chamber with a manometer (or equivalent) connected
vacuum cleaning system with which the motorized nozzle is to
to the plenum chamber. The motorized nozzle is to have the
be used.
agitator drive connected and a new filter bag in the cleaner or
5.14 Text Fixture—A moving surface, covered by the test airflow source. The agitator shall be operating freely with the
carpet supported on the test pad, which moves with a horizon- handle in the operating position, as shown in Fig. 1.
tal reciprocating motion, for a stroke distance of 27 in. 7.1.1 With the motorized nozzle opening sealed to the
(686 mm) in each direction at the average rate of 1.8 ft/s (0.55 plenum chamber and without an orifice plate in the holder,
mps), resulting in 24 cpm (forward and back). This motion energize both the cleaner or airflow source and the motorized
shall be generated by rotating a 13.5-in. (343-mm) radius arm nozzle at its rated voltage 61 % and rated frequency 61 Hz for
FIG. 1 Test Fixture
F1601 − 01 (2023)
5 min. to stabilize motor temperatures. If either component has 7.5.3 Change the drive belts every 168 h of cycling time or
a dual nameplate voltage rating, conduct testing at the highest if they cease to drive the agitator on the test carpet prior to 168
voltage. h. Replace the positive drive belts if they cease to function as
intended.
7.1.2 With the motorized nozzle and airflow source operat-
7.5.4 During the life test, change the disposable filter or
ing at the regulated voltages of 7.1.1, insert the sharp-edge
clean the reusable, primary, and secondary filter every 168 h of
orifice plate in the holder on the orifice box, in accordance with
cycling time or when the airflow decreases 40 % due to filter
5.5 and 5.6.
clogging. To determine whether the filters must be changed or
7.1.3 Record the manometer reading of the combined power
cleaned prior to the 168 h period, an initial dust clogging test
nozzle and airflow source as soon as the reading is stabilized.
shall be conducted in accordance with the procedure described
This manometer reading is to be used as the baseline to monitor
in Annex A2.
the degradation in performance during the test.
7.6 Perform all tests in an ambient, having a dry bulb,
7.1.4 Record the wattage of the motorized nozzle mounted
temperature of 68 °F to 81 °F (20 °C to 27 °C) and with a
on the plenum chamber. This wattage reading is to be used as
relative humidity of 30 % to 50 %.
the baseline to monitor the nozzle load during the test.
7.1.5 Repeat the initial test sequence of 7.1 – 7.4, recording 7.7 Operate the central vacuum cleaning system or airflow
manometer and wattage readings of only the cleaner or airflow source (see 5.13) at the r
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