MCCCD Program Description

Facilities Air Conditioning Systems

Course: FAC210

First Term: 2021 Fall

Lec + Lab 4.0 Credit(s) 6.0 Period(s) 6.0 Load
Subject Type: Occupational
Load Formula: T - Lab Load

Description: Fundamental principles of air conditioning including all-air, all-water (hydronic) and air-water combination systems. Overview of the physical principles, including air distribution systems and heating and cooling load calculation. System components and application theory for boilers, chillers, pumps, fans, and cooling towers. Theory and application of central air conditioning systems, air cleaning and humidification devices, pressure boosting, heat storage, expansion and pressurization equipment. Properties of water, pressure distribution in hydronic systems, flow in pipes, pressure drop/head loss, pump applications and pressurization of open and closed hydronic systems. Fundamentals of low and high temperature water systems.

MCCCD Official Course Competencies
1. Describe the types of zoned air conditioning systems and characteristics of all-water and air-water systems. (I) 2. Perform pump sizing measurements and calculations. (I-III, V, VI) 3. Explain the units of measurements related to air and the use of specific measuring equipment. (II) 4. Measure static pressure, velocity pressure, and total pressure in specific air and hydronic systems. (II) 5. Calculate air velocity and cubic feet per minute (CFM) in specific ducts and dual temperature systems. (II) 6. Perform fundamental thermodynamic calculations for air and water systems. (III, XII) 7. Calculate specific duct system design inefficiencies. (IV) 8. Define the periodic and preventative maintenance procedures for central air handling systems. (IV) 9. Explain the function of components of specific unitary and central air-conditioning systems. (V) 10. Explain the function of components of specific air and water air-conditioning systems. (VII) 11. Explain the general start-up procedures for a chilled water air conditioning system. (VII) 12. Describe specific start-up, periodic, and preventative maintenance procedures for chillers. (VII, VIII) 13. Explain the function of components of hot water systems. (IX, XI) 14. Evaluate HVAC/R system efficiency. (X, XII) 15. Explain specific types of distribution systems. (XIII) 16. Calculate constant and variable volume. (XIV)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.

MCCCD Official Course Outline
I. Types of systems A. Air-to-air systems 1. Single zone systems 2. Reheat systems 3. Multizone systems 4. Dual duct systems 5. Variable air volume B. Water-to-water systems C. Air-to-water systems II. Measuring and calculating air flow A. Types of air measuring meters 1. Velometer 2. Incline manometer 3. Magnehelic 4. Other B. Pressure 1. Velocity 2. Static 3. Total C. Calculations 1. Velocity 2. Cubic feet per minute (CFM) III. Fundamental thermodynamic calculations A. Air systems B. Water systems 1. Chill water systems 2. Hot water systems 3. Water source heat pumps IV. Load calculation A. Measuring for heat transmission B. Factors that affect heat loss C. Heat loss of a structure D. Duct heat loss E. Heat loss calculation procedures 1. Computer design data entry 2. Long form calculation 3. Pros and cons of calculation procedures F. Factors that affect heat gain G. Heat gain of structure H. Duct heat gain I. Heat gain calculation procedures J. Heat transfer multipliers K. Heat gain through shaded and/or unshaded glass L. Summer and winter design and desired temperatures M. Blueprint reading V. Calculating duct sizing for constant and variable flow A. Distribution systems 1. Trunk and branch 2. Radial 3. Perimeter loop 4. Variable volume B. Air side devices and equipment 1. Devices a. Supply outlets b. Grills c. Dampers d. Junction boxes 2. Equipment a. Heating coils b. Cooling coils c. Air moving fans d. Air cleaning filtration e. Humidifier f. Electronic C. Ducting types and systems 1. Constant volume rigid duct 2. Flexible duct 3. Variable volume VI. Maintenance of central forced-air systems A. Supply and return fans B. Mixing damper section C. Filter section D. Coil section E. Supply duct F. Return duct G. Terminal units 1. Variable air volume (VAV) 2. VAV with reheat 3. Induction VAV 4. Fan coil units VII. Components of air-conditioning systems A. Unitary air conditioning systems B. Central air conditioning systems VIII. Pump sizing measurements and calculations IX. Components and function of air and water systems A. Air systems 1. Variable speed fans 2. Banked fixed speed fans 3. Methodology and unloading 4. Supply and return air connections 5. Start-up procedures B. Water systems 1. Chillers 2. Heat exchangers 3. Methodology and unloading 4. Supply and return water connections 5. Pumps a. Chill b. Condensor 6. Start-up procedures C. Metering components D. Cooling tower 1. Fan 2. Water distributor 3. Fill (media) 4. Water make-up 5. Start-up procedures X. Periodic and preventative maintenance procedures A. Chillers using scroll B. Reciprocating C. Rotary screw D. Centrifugal compressors E. Automatic control XI. Hot water systems A. Hot water heaters B. Boilers C. Storage systems XII. Operation efficiency and the psychrometric chart XIII. Types of distribution systems XIV. Calculating constant and variable volume

MCCCD Governing Board Approval Date: February 23, 2021

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.