ASHRAE-90.1-2022- - Page 326
Extracted Content
Table G3.2.2.5 Climate Conditions under which Economizers are Included for Comfort Cooling for Baseline Systems 3 through 8 and 11, 12, and 13
Note: NR means that there is no conditioned building floor area for which economizers are included for the type of zone and climate.
Table G3.2.2.6 Economizer High-Limit Shutoff Temperature
Table G3.2.2.8 Baseline Fan Brake Horsepower
Baseline Fan Motor Brake Horsepower
Notes:
- Where A is calculated according to Section 6.5.3.1.1 using the pressure-drop adjustment from the proposed design and the design flow rate of the baseline building system .
- Do not include pressure-drop adjustments for evaporative coolers or heat recovery devices that are not required in the baseline building system by Section G3.2.2.9.
Table G3.2.3.7 Type and Number of Chillers
| Peak Coincident Cooling Load of Baseline HVAC Systems Using Chilled Water | Number and Type of Chillers |
|---|---|
| 300 tons | 1 liquid-cooled screw chiller |
| >300 tons, <600 tons | 2 liquid-cooled screw chillers sized equally |
| 600 tons | 2 liquid-cooled centrifugal chillers minimum with chillers added so that no chiller is larger than 800 tons, all sized equally |
324 ANSI/ASHRAE/IES Standard 90.1-2022 (I-P)
