ASHRAE-90.1-2022- - Page 399
Extracted Content
Table M-1 Addenda to ANSI/ASHRAE/IES Standard 90.1-2019 (Continued)
| Addendum | Sections | Description of Changesa | ASHRAE Standard Committee Approval | Cosponsor Approval (IES) | ASHRAE BOD/Tech Council Approval | ANSI Approval |
|---|---|---|---|---|---|---|
| bk | 6.3.2, 6.4.3.3.2, 6.4.3.3.5, 6.4.5, 6.4.6, 12.4.1.1, 12.5.2, G2.2.1 | Updates humidity control requirements in accordance with the latest Standard 62.1-2019. | 1/21/2022 | 1/18/2022 | N/A | 1/21/2022 |
| bm | 6.5.3.8 | Modifies occupied-standby controls from multiple-zone systems to explicitly require an outdoor air reset when ventilation is reduced to zero. | 1/21/2022 | 1/18/2022 | N/A | 1/21/2022 |
| bp | 9.4.1.3 | Removes the exception for captive card key controls in hotel guestrooms | 9/30/2022 | 9/8/2022 | N/A | 9/30/2022 |
| bq | 8.4.3 | Adds a requirement to perform electrical energy monitoring with separate metering for refrigeration systems where refrigeration accounts for 10% or more of the building load. | 6/25/2022 | 6/17/2022 | 6/29/2022 | 7/29/2022 |
| br | 9.4.3 | Increases the efficacy threshold for lamps and luminaires in dwelling units and specifies requirements for interior and exterior lighting controls. | 6/25/2022 | 6/17/2022 | 6/29/2022 | 7/29/2022 |
| bs | 9.3.1, 9.3.2 | Updates the lighting power allowances (LPA) in the Simplified Building Method Compliance Path to maintain alignment with the established method (0.9x the Building Area Method LPA values.). Removes an exception for alterations that had incentivized the use of LEDs before they became commonplace. | 7/29/2022 | 7/26/2022 | N/A | 7/29/2022 |
| bt | G3.1.3.5, G3.1.3.10, G3.1.3.19 | Indicates that baseline system pumps are to be modeled based on the presence of a load and preheat coil temperature is to be modeled compared to the zone with the highest set point. | 6/30/2022 | 6/10/2022 | N/A | 6/30/2022 |
| bv | Table 4.2.1.1 | Updates the building performance factors (BPFs) used to determine compliance with Normative Appendix G based on energy-efficiency improvements in the 2022 standard. | 6/30/2022 | 6/10/2022 | N/A | 6/30/2022 |
| bw | 6.5.3.1.3 | Clarifies that the fan efficiency metric is to be applied at the highest design airflow rate. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| bx | Table 6.8.1-5 | Modifies Table 6.8.1-5 for warm air furnace efficiency requirements to more accurately distinguish between different products and test procedures based on locations in which they are used and their status as DOE or non-DOE covered products. | 7/29/2022 | 7/26/2022 | N/A | 7/29/2022 |
| bz | 6.5.6 | Adds language to specify the sensible energy recovery ratio requirement for systems that require only sensible heating energy recovery. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| cb | 1.1, 2.1, 2.2, 2.3, 3.2, 4.1.1.6, 4.2.1.4, 4.1.2.5, 10.4.6, Table G3.1 | Revises the 90.1 Purpose and Scope to apply to areas outside of the physical building that qualify under the new definition for “site.” | 2/2/2022 | 1/28/2022 | 2/2/2022 | 3/1/2022 |
| ce | A2.5, A3.3, A9.2, 13 | Adds new reference and requirements for steel-framed walls aligned with ANSI/AISI S250, which provides additional options for wall framing and insulation placement. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| cf | 10.4.3, 10.9.3 | Introduces provisions that improve elevator fan, lighting, and movement efficiency. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| cg | 5.5.3, A9.4.7 | Adds a definition for insulated metal panels (IMPs) and a new section to explain how the U-factor of a given IMP is determined. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| ci | Table 6.5.1-1 | Requires fan cooling-units outside of the building to have an economizer at the indicated capacity range. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| cj | Table 6.8.1-16 | Corrects numerical errors that were present in the centrifugal chiller category when it was updated in Addendum y. | 4/29/2022 | 4/27/2022 | N/A | 4/29/2022 |
| cm | 13 | Updates the normative references used in the standard to the latest applicable versions. | 7/29/2022 | 7/26/2022 | N/A | 7/29/2022 |
| a. These descriptions may not be complete and are provided for information only. | a. These descriptions may not be complete and are provided for information only. | a. These descriptions may not be complete and are provided for information only. | a. These descriptions may not be complete and are provided for information only. | a. These descriptions may not be complete and are provided for information only. | a. These descriptions may not be complete and are provided for information only. | a. These descriptions may not be complete and are provided for information only. |