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[M] 605.17.2 Emergency Ventilation System
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An emergency ventilation system shall be provided at the minimum exhaust rate specified in ASHRAE 15 or Table 605.17.2. Shut down of the emergency ventilation system shall be by manual means.
TABLE [M] 605.17.2
MINIMUM EXHAUST RATE
| REFRIGERANT | Q (m3/sec) | Q (cfm) |
| R32 | 15.4 | 32,600 |
| R143a | 13.6 | 28,700 |
| R444A | 6.46 | 13,700 |
| R444B | 10.6 | 22,400 |
| R445A | 7.83 | 16,600 |
| R446A | 23.9 | 50,700 |
| R447A | 23.8 | 50,400 |
| R451A | 7.04 | 15,000 |
| R451B | 7.05 | 15,000 |
| R1234yf | 7.80 | 16,600 |
| R1234ze(E) | 5.92 | 12,600 |
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