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Dec 04, 2024
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2023-2024 College Catalog [ARCHIVED CATALOG]
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BCT 231 - Residential and Industrial HVAC IV 4 Credits, 6 Contact Hours 2 lecture periods 4 lab periods
Continuation of BCT 134 . Includes refrigerants and oil, compressors, metering devices, retail refrigeration systems, commercial hydronic systems, and steam systems.
Prerequisite(s): BCT 134
Course Learning Outcomes
- Perform a refrigerant leak detection procedure.
- Perform electrical troubleshooting checks on a single phase compressor.
- Identify various types of metering devices.
- Demonstrate the proper cleaning procedures for an ice machine.
- Explain the terms and concepts used when working with hot water heating and chilled water cooling systems.
- Describe the basic steam heating cycle.
Outline:
- Refrigerants and Oils
- Refrigerant structure
- Refrigerant identification
- Refrigerant composition
- Refrigerant leaks
- Lubrication oils
- Oil and the refrigeration system
- Oil handling guidelines
- System conversion
- Compressors
- Role of compressors
- Open, hermetic, and semi hermetic compressors
- Types of compressors
- Capacity control of compressors
- Compressor electric drive motors
- Other compressor protection devices
- Reduced voltage motor starting
- Causes of compressor failure
- System checkout following compressor failure
- Compressor change out
- Metering Devices
- Basic operation
- Fixed metering devices
- Expansion valves
- Distributors
- TXV replacement
- Metering device problems
- Retail Refrigeration Systems
- Mechanical refrigeration systems
- Defrost systems
- Retail refrigeration equipment and fixtures
- Common refrigeration system controls
- Troubleshooting
- Commercial Hydronic Systems
- Water concept review
- Commercial hot water heating system components
- Chilled water cooling systems
- Chilled water system components
- Dual temperature water systems
- Commercial water piping systems
- Water system balancing
- Steam Systems
- Fundamentals and properties of water
- Steam cycle principles of operation
- Steam boilers, boiler controls, and accessories
- Valves
- Heat exchangers/converters
- Terminals
- Steam traps and strainers
- Troubleshooting steam traps
- Condensate return and feedwater system components
J. Flash tanks
K. Steam system piping
L Steam and condensate pipe sizing
M. Boiler blowdown and skimming
N. Boiler water treatment
Effective Term: Fall 2010
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