Maricopa Community Colleges  ABA179   19982-20046 
Official Course Description: MCCCD Approval: 11/25/97
ABA179 19982-20046 LEC 3 Credit(s) 3 Period(s)
Installing and Sizing Water Supply Piping
Connecting piping to a water main. Plumbing connections to buildings and air and hydrostatic testing of water supply piping. Operation and installation of water heaters. Types, operation and installation of water meters. Installation of water supply systems to given structures. Effects of valves, fittings and piping on water pressure. Calculations of pressure drop and sizing procedures for water supply piping. Principles of back siphonage and backflow prevention. Prerequisites: (Indentured status with the Arizona Builders Alliance and ABA172) or permission of the apprenticeship coordinator.
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MCCCD Official Course Competencies:
 
ABA179   19982-20046 Installing and Sizing Water Supply Piping
1. Describe correct procedures to connect piping to a water main. (I)
2. Correctly layout pipes and valves for a water connection to a building and describe specific procedures for installing a curb box connecting water service to a house. (II)
3. Explain correct procedures for conducting an air test and a hydrostatic test on water supply piping. (III)
4. Describe the operation of water heaters. (IV)
5. Describe specific procedures for installing and venting water heaters. (IV)
6. Identify the three major types of water meters and describe the operation of each. (V)
7. Describe correct installation procedures for water meters. (V)
8. Describe specific procedures to install water supply systems to a given structure. (VI)
9. Explain the effects of valves, fittings and pipe on water pressure reduction. (VII)
10. Calculate pressure drops in water supply systems and explain the procedure for sizing water supply piping. (VIII)
11. Explain the principle of and hazards of backflow siphonage. (IX)
12. Demonstrate the importance of backflow preventers. (IX)
13. Identify and explain applications of five backflow prevention devices. (IX)
14. Install, maintain, and test backflow preventers. (IX)
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MCCCD Official Course Outline:
 
ABA179   19982-20046 Installing and Sizing Water Supply Piping
    I. Connecting Piping to a Water Main
        A. Cooperation stop valve
          1. Drilling and tapping machine
          2. Saddle
        B. Plastic pipe - saddle tee
      II. Water Connection to a Building
          A. Piping components
            1. Service pipe
            2. Union
            3. Meter
            4. Valve
          B. Curb stop valve
          C. Stop box (buffalo box)
        III. Testing Water Supply Piping
            A. Air testing
              1. Test gauge assembly
              2. Compressor
              3. Test plugs
            B. Hydrostatic testing
              1. Hydrostatic test pump
              2. Test procedures
          IV. Water Heaters
              A. Types
                1. Gas-fired
                2. Electric
              B. Operation
                1. Heating unit
                2. Thermostat
                3. Insulation
                4. Overflow piping
                5. Cold water inlet
                6. Temperature/pressure relief valve
                7. Flue (gas-fired)
              C. Installation
                1. Rough plumbing
                2. Heater setup
                3. Parallel connection
                4. Series connection
              D. Venting
                1. 15 foot rule
                2. Flue outlet size
                3. Y connector
            V. Water Meters
                A. Types
                  1. Disk-type
                  2. Turbine
                  3. Compound
                B. Plumbing
                  1. Meter couples
                  2. Meter stops
                C. Meter Yokes
                  1. Flexible
                  2. Corner type
                  3. Straight line
                  4. Meter relocater
                  5. Horizontal inlet and outlet
                  6. Vertical inlet and outlet
                  7. Right angle
              VI. Installing Water Supply Systems
                  A. Piping material
                  B. Structure entrance
                  C. Water heater and hose bibbs
                  D. Fixture location
                    1. Brackets and backing
                    2. Stubouts
                  E. Main supply lines
                  F. Appliance connections
                  G. Special considerations
                    1. Accessibility for repair
                    2. Water hammer
                    3. Frost protection
                    4. Pipe protection
                VII. Water Pressure Reduction
                    A. Friction
                    B. Valves
                    C. Fittings
                    D. Piping
                  VIII. Pressure Calculations and Sizing Formulas
                      A. Demand and flow pressure values
                      B. Fixture load values (water supply fixture units - WSFU)
                      C. Sizing pipe
                        1. Demand
                        2. Minimum size tables
                        3. Friction loss
                        4. Flow velocity
                        5. Required pipe size
                    IX. Backflow prevention
                        A. Cross connections
                          1. Hazards
                          2. Code requirements
                        B. Types of preventers
                          1. Air gaps
                          2. Vacuum breakers
                          3. Specialty preventers
                        C. Install and service backflow preventers
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