period one
Types of Water Chillers
notes
ASHRAE Standard 15–1994
▲Safety standard for refrigerating systems
▲Mechanical equipment room
◆Refrigerant monitors
◆Alarms
◆Mechanical ventilation
◆Pressure-relief piping
Figure 29
Another standard that is related to chilled-water systems, ASHRAE Standard 15–1994, Safety Code for Mechanical Refrigeration, is intended to specify requirements for safe design, construction, installation, and operation of refrigerating systems. This standard covers mechanical refrigeration systems of all sizes that use all types of refrigerants. Because absorption chillers use water as the refrigerant, however, they are exempt from this standard.
For many chilled-water systems in which the chillers are located indoors, the standard requires the refrigeration equipment to be installed in a mechanical- equipment room. The requirements for this mechanical-equipment room include refrigerant monitors and alarms, mechanical ventilation, pressure-relief piping, and so forth.
