// CODE SNIPPET
[M] 605.17.2 Emergency Ventilation System
JUMP TO FULL CODE CHAPTER
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 |
Related Code Sections
1106.4.2 Refrigeration, Emergency Ventilation System
An emergency ventilation system shall be provided at the minimum exhaust rate specified in ASHRAE 15 or Table 1106.4.2. Shutdown of the emergency ...
Mechanical Code 2021 of Colorado > 11 Refrigeration > 1106 Machinery Room, Special Requirements > 1106.4 Special Requirements for Group A2L Refrigerant Machinery Rooms > 1106.4.2 Emergency Ventilation System
1106.5.2 Refrigeration, Emergency Ventilation System
An emergency ventilation system shall be provided at the minimum exhaust rate specified in ASHRAE 15 or Table 1106.5.2. Shutdown of the emergency ...
Mechanical Code 2018 of Colorado > 11 Refrigeration > 1106 Machinery Room, Special Requirements > 1106.5 Special Requirements for Group A2L Refrigerant Machinery Rooms > 1106.5.2 Emergency Ventilation System
605.17.2 Building Services and Systems, Emergency Ventilation System
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 ...
Fire Code 2018 of Colorado > 6 Building Services and Systems > 605 Mechanical Refrigeration > 605.17 Special Requirements for Group A2L Refrigerant Machinery Rooms > 605.17.2 Emergency Ventilation System
608.18.2 Building Services and Systems, Emergency Ventilation System
An emergency ventilation system shall be provided at the minimum exhaust rate specified in ASHRAE 15 or Table 608.18.2. Shut down of the emergency ...
Fire Code 2021 of Colorado > 6 Building Services and Systems > 608 Mechanical Refrigeration > 608.18 Special Requirements for Group A2L Refrigerant Machinery Rooms > 608.18.2 Emergency Ventilation System
1106.4 Refrigeration, Special Requirements for Group A2L Refrigerant Machinery Rooms
of 25 percent of the LFL. Upon activation, the detection system shall activate the emergency ventilation system required by Section 1106.4.2. The ...
Mechanical Code 2021 of Colorado > 11 Refrigeration > 1106 Machinery Room, Special Requirements > 1106.4 Special Requirements for Group A2L Refrigerant Machinery Rooms