The purpose of this standard is to establish uniform methods for laboratory testing of air circulating fans to determine performance (forward or reverse flow) in terms of airflow rate for rating, certification, or guarantee purposes.







Comments:

Christian Taber on 2022-02-02 16:19:00

Section/Figure/Table No.: 8.2.4 Test data

Type of Comment: Technical (substantive)

Comment (justification):
While many fans tested to 230 use variable speed drives and have nearly infinite speeds, not all fans do.

Proposed Change:
Clarify how to deal with single speed, 2-speed, and multi-speed fans that do not have the ability to be tested at the required test speed(s).

Christian Taber on 2022-01-29 22:13:00

Section/Figure/Table No.: Section 10

Type of Comment: Technical (substantive)

Comment (justification):
Align with the DOE rounding requirements.

Proposed Change:
Round airflow to the nearest CFM. Round impeller diameter to the nearest inch. Etc. See US CFR rounding and measurement requirements.

Michael Ivanovich on 2022-01-29 22:28:51

Section/Figure/Table No.: Section 6 - Definitions

Type of Comment: Technical (substantive)

Comment (justification):
AMCA 230 should consider U.S. Dept. of Energy's proposed definition change for ceiling fan, and a linked definition for "circulating air". AMCA has tentatively supported the proposed changes in written comments that will be provided to the committee.

Proposed Change:
Ceiling fan means a nonportable device that is suspended from a ceiling for circulating air via the rotation of fan blades. For the purpose of this definition: (1) Circulating Air means the discharge of air in an upward or downward direction with the air returning to the intake side of the fan. A ceiling fan that has a ratio of fan blade span (in inches) to maximum rotation rate (in revolutions per minute) greater than 0.06 provides circulating air.

Christian Taber on 2022-01-29 22:20:03

Section/Figure/Table No.: Section 5

Type of Comment: Technical (substantive)

Comment (justification):
Align with US CFR on new product classes

Proposed Change:
Add, high speed belt driven fans and any other new product classes DOE adds in the final rule.

Christian Taber on 2022-01-29 22:12:01

Section/Figure/Table No.: Section 10

Type of Comment: Technical (substantive)

Comment (justification):
Align with the DOE rounding requirements.

Proposed Change:
Round airflow to the nearest CFM. Round impeller diameter to the nearest inch. Etc. See US CFR rounding and measurement requirements.

Christian Taber on 2022-01-29 21:52:40

Section/Figure/Table No.: 9.5

Type of Comment: Technical (substantive)

Comment (justification):
Align the standard with the US Code of Federal Regulations.

Proposed Change:
Add CFEI rating at High speed, and 40 percent speed or the nearest speed that is not less than 40 percent speed. Allow for option rating at additional speeds to generate a fan performance curve (20%,60%, 80%) for example.

Christian Taber on 2022-01-29 21:48:44

Section/Figure/Table No.: Section 5

Type of Comment: General

Comment (justification):
The current product definitions are causing confusion in the marketplace/regulatory world.

Proposed Change:
Consider adding diagrams for each defined product....air circulating fan head, ceiling fan, box fan, etc. This will help clarify what each product is.

Michael Ivanovich on 2022-01-26 15:31:03

Section/Figure/Table No.: Section 6 - Definitions

Type of Comment: Technical (substantive)

Comment (justification):
Need a definition for Large Diameter Ceiling Fan in accordance with U.S. Department of Energy test standard and energy standard in the Code of Federal Regulations (Appendix U to Subpart B of Part 430 - Uniform Test Method for Measuring the Energy Consumption of Ceiling Fans )

Proposed Change:
Large-diameter ceiling fan means a ceiling fan that is greater than seven feet (213 cm) in diameter.

Michael Ivanovich on 2022-01-26 15:26:28

Section/Figure/Table No.: Section 6 - Definitions

Type of Comment: Technical (substantive)

Comment (justification):
Need a definition for "minimum testable configuration" because of the many options large diameter ceiling fans are sold with

Proposed Change:

Michael Ivanovich on 2022-01-26 15:25:00

Section/Figure/Table No.: sections 6, 7, 8 as needed

Type of Comment: Technical (substantive)

Comment (justification):
Need to have a definition and measurement procedure for Standby Power in accordance with Code of Federal Regulations Large Diameter Ceiling Fan test procedure

Proposed Change:

Michael Ivanovich on 2021-12-06 16:39:00

Section/Figure/Table No.: Several

Type of Comment: Technical (substantive)

Comment (justification):
Integrate the AMCA Erratum published May 5, 2021 by the AMCA Fan Engineering Committee.

Proposed Change:
The erratum is available in full at https://www.amca.org/assets/resources/public/asset...

Joe Brooks on 2021-02-19 19:46:27

Section/Figure/Table No.: General

Type of Comment: Technical (substantive)

Comment (justification):
I’d like more clarity on the following: For fans with variable speed, performance data shall be captured and reported in five speeds (20, 40, 60, 80 and 100 percent of maximum speed) evenly spaced throughout the speed range. If there are less than five speeds available, the performance of all speeds shall be measured. The reason this is coming around- we have a VFD driven fan that is limited to a max speed of 350RPM and a minimum speed of 100RPM. We can take a determination anywhere in between those two speeds, but according to the standard, the minimum speed would need to be 70RPM (20% of max operating speed).

Proposed Change:
I’d like the section to possibly read like the below: For fans with variable speed, performance data shall be captured and reported in five speeds (20, 40, 60, 80 and 100 percent of maximum speed) OR FIVE evenly spaced throughout the speed range IF THE MINIMUM SPEED IS GREATER THAN 20%. If there are less than five speeds available, the performance of all speeds shall be measured.

Armin Hauer on 2020-10-16 22:26:00

Section/Figure/Table No.: 8.1.2 Extraneous airflow

Type of Comment: Technical (substantive)

Comment (justification):
Specification of location of extraneous airflow measurement seems to relate exclusively to test setup #1.

Proposed Change:
* Add locations of extraneous airflow measurement in each of the figures. * Delete this text from 8.1.2: "Location of extraneous airflow measurement shall be directly under the center of the fan at an elevation of 1701.8 mm (67 in.) above floor."

Armin Hauer on 2020-08-18 16:42:12

Section/Figure/Table No.: scope, definition

Type of Comment: Technical (substantive)

Comment (justification):
revision of my earlier proposal clearly separate 230 products from 250 products

Proposed Change:
AMCA 230 should say that circulation fans are used without ducts for recirculating air in a space primarily for temperature- or humidity-destratification of room air, or for comfort-cooling based on evaporation.

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