Maricopa Community Colleges  IMC138   19976-99999 
Official Course Description: MCCCD Approval: 05/27/97
IMC138 19976-99999 LEC 0.50 Credit(s) 0.50 Period(s)
Air Balance
Design, operation and control of distribution systems to maintain air balance. Air balancing procedures, tools and instruments. Prerequisites: None.
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MCCCD Official Course Competencies:
 
IMC138   19976-99999 Air Balance
1. Explain principles of air balance (I)
2. Describe methods of balancing air distribution systems. (II, IV)
3. Explain the operation of air balancing components. (III)
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MCCCD Official Course Outline:
 
IMC138   19976-99999 Air Balance
    I. Air Balance
        A. Terms
        B. Airflow measurements
        C. Anemometers
      II. Methods of Balancing Air Distribution
          A. System components
          B. Elbow fittings
          C. Effect on velocity
          D. Air movers
          E. Distribution systems
            1. low velocity
            2. high velocity
            3. variable air velocity
          F. Bellows
          G. Dampers
        III. Operation of Air Distribution Systems
            A. Airflow
              1. areas of high pressure
              2. areas of low pressure
            B. Pressure losses
              1. friction
              2. turbulence
            C. Volume of air
            D. Velocity
            E. Grille area
            F. Static pressure drop
            G. Air weight
            H. British thermal unit (BTU)
            I. Effect of elevation
          IV. Air Balancing Procedures
              A. Setting dampers
              B. Adjusting registers and grilles
              C. Blower speed
              D. Static loss
              E. Noise
              F. Hot and cold spots
              G. Stratification
              H. Evaluating schematic layout
              I. Balancing procedures
              J. Terminal balancing
              K. Mixed air system adjustment
              L. Dual duct systems
              M. Induction systems
              N. Measuring temperature rise
              O. Measuring temperature drop
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