| | Searching Current Courses For Fall 2016 |
| |
Course: |
HVA 245
|
|
| |
Title: | Commercial Refrigeration & A/C |
|
| |
Long Title: | Commercial Refrigeration and Air Conditioning |
|
| |
Course Description: | Builds on the skills acquired in refrigeration and air conditioning fundamentals. The student will study commercial air conditioning systems to include rooftop units, water chillers, cooling towers, air handlers and facilities equipment. The student will have an opportunity to study and work on commercial reach-in and walk-in coolers, ice machines, and study the workings of commercial supermarket systems. The student will study and demonstrate how to troubleshoot commercial heating, air conditioning and refrigeration systems.
|
|
| |
Min Credit: | 5 |
|
| |
Max Credit: | |
| |
Origin Notes: | PPCC |
|
| |
Course Notes: | New course entered 1/1/13 |
|
STANDARD COMPETENCIES:
1. Identify various types and configuration of rooftop and air handling units.
2. Describe the purpose of the economizer and it’s proper setup.
3. Describe the various blowers and fans found on rooftop and air handling units and describe the difference between variable air volume (VAV) systems and constant air volume (CAV) systems.
4. Identify different types of chilled water air conditioning systems and cooling towers.
5. Identify the different types on components found on chilled water systems and cooling towers.
6. Explain the major components used on commercial refrigeration systems and supermarket systems and explain how they are used.
7. Identify the different pressure and temperature controls used on commercial refrigeration systems and supermarket systems.
8. Explain and identify the different types of ice machines and explain their sequence of operation for making ice.
9. Demonstrate how to properly setup and adjust controls for commercial air conditioning, refrigeration, heating equipment and ice machines.
10. Demonstrate how to troubleshoot and repair commercial air conditioning, refrigeration, heating equipment and ice machines.
TOPICAL OUTLINE:
I. Rooftop Units
a. Various types and configurations
b. Air conditioning processes
c. Various blowers and fans
d. Economizers
II. Air Handlers
a. Various types and configurations
b. Blowers and their controls
III. Air Flow systems
a. Variable air volume (VAV)
b. Constant air volume (CAV)
IV. Chilled Water Air Conditioning Systems
a. Different types of chillers
b. Compressors
c. Metering devices
d. Low pressure systems
e. High pressure systems
f. Fan motors and controls and starting mechanisms
V. Water Cooling Towers
a. Different types and designs
b. Major components and their functions
c. Wet-bulb temperature relationship to cooling capacity
d. Cooling tower approach and range temperature
VI. Commercial Refrigeration Systems
a. Refrigeration cycle as it relates to commercial refrigeration
b. Four basic components as they relate to commercial refrigeration
c. Special controls and accessories
d. Compressor motor controls
e. Different types of commercial refrigeration equipment
VII. Supermarket Refrigeration Systems
a. Product visibility and customer access
b. Multiple refrigerated cases and temperatures
c. Parallel rack systems and controls
d. Head pressure controls
e. Defrost controls
f. Mechanical subcooling and heat reclaim
g. Case airflow
VIII. Ice Machines
a. Types and applications
b. Basic ice machine sequence of operations
c. Cleaning and maintenance
d. Setup and installation specs
IX. Troubleshooting
a. Diagnoses and repair of rooftop equipment and air handlers
b. Diagnoses and repair of chilled water systems
c. Diagnoses and repair of water cooling towers
d. Diagnoses and repair of commercial refrigeration equipment
e. Diagnoses and repair of commercial supermarket systems
f. Diagnoses and repair of commercial ice machines
| |
Pikes Peak State College |
PPCC |
Skip to top of page
