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Refrigeration systems shall be limited in application in accordance with Table 1104.1, and the requirements of Section 1104.0.
TABLE 1104.1 PERMISSIBLE REFRIGERATION SYSTEMS1
OCCUPANCY GROUP3 HIGH-PROBABILITY SYSTEM LOW PROBABILITY SYSTEM MACHINERY ROOM
A-1 Group A1 only Any Any
A-2 Group A1 only Any Any
A-3 Group A1 only Any Any
A-4 Group A1 only Any Any
B Group A12 only Any Any
E Group A1 only Any Any
F-1 Group A12 only Any Any
F-2 Any2 Any Any
H-1 Any Any Any
H-2 Any Any Any
H-3 Any Any Any
H-4 Group A1 only Any Any
H-5 Group A1 only Any Any
I-1 None Any Any
I-2 Group A1 only Any Any
I-3 None Any Any
I-4 Group A1 only Any Any
M Group A12 only Any Any
R-1 Group A1 only Any Any
R-2 Group A1 only Any Any
R-3 Group A1 only Any Any
R-4 Group A1 only Any Any
S-1 Group A12 only Any Any
S-2 Any2 Any Any
U Any Any Any
Notes:
2 A refrigerant shall be permitted to be used within a high-probability system where the room or space is in accordance with Section 1104.4.

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1104.1 Refrigeration, System Selection
Refrigeration systems shall be limited in application in accordance with Table 1104.1, and the requirements of Section 1104.0. TABLE 1104.1 ...