| Includes | systems and equipment for the detection and notification of refrigerant presence. |
| Alternate Terms/Abbreviations | GUI: graphical user interface. |
| See | 23 23 00 for refrigerant piping. 23 61 00 for refrigerant compressors. 23 62 00 for packaged compressor and condenser units. 23 63 00 for refrigerant condensers. 28 40 00 for security monitoring and control. 28 60 00 for mass notification. 28 80 00 for fire detection and alarm. |