ASHRAE-90.1-2022- - Page 327
Extracted Content
Table G3.2.3.11 Heat-Rejection Leaving Water Temperature
| Climate Zone | Leaving Water Temperature |
|---|---|
| 5B, 5C, 6B, 8 | 65°F |
| 0B, 1B, 2B, 3B, 3C, 4B, 4C, 5A, 6A, 7 | 70°F |
| 3A,4A | 75°F |
| 0A, 1A, 2A | 80°F |
Table G3.2.3.15 Part-Load Performance for VAV Fan Systems
Method 1—Part-Load Fan Power Data
| Fan Part-Load Ratio | Fraction of Full-Load Power |
|---|---|
| 0.00 | 0.00 |
| 0.10 | 0.03 |
| 0.20 | 0.07 |
| 0.30 | 0.13 |
| 0.40 | 0.21 |
| 0.50 | 0.30 |
| 0.60 | 0.41 |
| 0.70 | 0.54 |
| 0.80 | 0.68 |
| 0.90 | 0.83 |
| 1.00 | 1.00 |
Method 2—Part-Load Fan Power Equation
Pfan = 0.0013 + 0.1470 PLR fan + 0.9506 (PLR fan ) [2] - 0.0998 (PLR fan ) [3]
where Pfan = fraction of full-load fan power and PLR fan = fan part-load ratio (current cfm/design cfm)
ANSI/ASHRAE/IES Standard 90.1-2022 (I-P) 325