Intended Audience: HVAC Engineers
PDH UNITS: 5
American Society of Heating Refrigerant and Air conditioning Engineers (ASHRAE) defines a set of minimum requirements to keep personnel safe while working with refrigerants or working inside mechanical rooms or any area in a building where refrigerants are used. This course discusses two important standards:
- ASHRAE 34, Designation and Safety Classification of Refrigerants, describes a shorthand way of naming refrigerants and assigns safety classifications to refrigerants based on toxicity and flammability data.
- ASHRAE 15, Safety Standard for Refrigeration Systems, establishes procedures for safe design, construction, installation, and operation of refrigerating systems.
Learning Objectives:At the successful conclusion of this course, you will learn the following knowledge and skills:
- Understand the health hazards and safety precautions on working with refrigerants.
- Understand the uniform system for assigning refrigerant numbers and safety classifications for refrigerants.
- Understand the occupancy classifications that consider the ability of people to respond to potential exposure to refrigerant.
- Understand the system classification according to the degree of probability that a leakage of refrigerant will enter occupancy‐classified areas.
- Understand the Variable Refrigerant Flow (VRF) systems, the validation procedure and the corrective actions to comply with ASHRAE Standards 15 and 34.
- Understand the ventilation and purge requirements of mechanical room housing the refrigeration equipment.
- Understand the gas detectors and monitors requirements of mechanical room housing the refrigeration equipment.
- Understand the selection requirement of vent piping, pressure limiting devices and refrigerant piping.