50-427-752Vents and Venting Systems
Course Information
Description
This course is designed to provide the apprentice with the skills to identify and design sanitary vent piping in a plumbing system in accordance with the Wisconsin Plumbing Code. The course focuses on theory, work experience, and the application of plumbing code principles through discussions, drawing exercises, work sheets, and evaluations.
Total Credits
2
Course Competencies
  1. Locate vent connections to fixture drains
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Minimum/Maximum distance is determined using pipe diameter, pitch, and fitting arrangements according to Comm 82.31 (9)
    Vent is located according Comm 82.31

  2. Determine minimum size and maximum length of fixture vents
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Dfu load is calculated on a given vent pipe according to Comm 82.30-1
    Total developed length is calculated according to Comm 82.31-3
    Minimum diameter of the vent pipe is determined according to Comm 82.31-3

  3. Determine pitch and position of fixture vent connections
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Dry vent is located above the spring line of the pipe according to Comm 82.31 (15)
    Horizontal offsets in vents serving wall outlet fixtures are located according to Comm 82.31 (15)
    Branch vent connections are located according to Comm 82.31 (15)
    Vents are pitched to drain according to Comm 82.31 (15)

  4. Design the installation of vent terminals
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Vent terminals are located according to Comm 82.31 (16)
    Vent terminals are sized according to Comm 82.31 (16)

  5. Design the installation of an individual vent
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Drainage fixture load (dfu) load is assigned to an individual vent according to Comm 82.30-1
    Developed length is determined according to Comm 82.31-3
    Individual vent is connected according to Comm 82.31
    Vent size is determined according to Comm 82.31-3

  6. Design the installation of a common vent
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Drainage fixture load (dfu) load is assigned to a common vent according to Comm 82.30-1
    Developed length is determined according to Comm 82.31-3
    Vertical common vent is connected according to Comm 82.31 (11) and Comm 82.32 (5)
    Horizontal common vent is connected according to Comm 82.31 (11)
    Vent size is determined according to Comm 82.31-3
    Clean-outs are located according to COMM 82.35

  7. Design the installation of circuit vented fixtures
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Circuit vent connection to the horizontal drain line meets specifications of Comm 82.31 (10) (a)
    Relief vent connection to the horizontal drain line meets specifications of Comm 82.31 (10) (b)
    Circuit vent size meets specifications of Comm 82.31 (14) (f)
    Relief vent size meets specifications of Comm 82.31 (14) (g)
    Circuit vented drain line is sized according to Comm 82.31 (10) (c)

  8. Design the installation of a vent for an island plumbing fixture(s)
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Vent design meets specifications of Comm 82.31 (12)
    Vent size meets specifications of Comm 82.31 (14)

  9. Design the installation of a wet vent
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Learner differentiates between vertical, horizontal and other types of wet vents according to Comm 82.31 (13)
    Wet vent selected meets design specifications of Comm 82.31 (13)
    Branch vent size meets specifications of Comm 82.31 (14)
    Drain size associated with wet vents meets specifications of Comm 82.30

  10. Design the installation of a relief vent for circuit vents, building drain offset, and horizontal wet vents
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Learner differentiates between a relief vent for circuit vented drain line, an offset in a building drain, and a horizontal wet vent
    Relief vent for circuit vents, building drain offset and horizontal wet vents are connected according to Comm 82.31 (10), Comm 82.31 (7) and Comm 82.31 (13) (b)
    Relief vent for circuit vents, building drain offset and horizontal wet vents are sized according to Comm 82.31 (14) (g)

  11. Design the installation of a combination drain and vent system
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Learner differentiates between combination drain and vent systems for drain stacks, building drains and laboratory sinks according to Comm 82.31 (17)
    Combination drain and vent system selected meets design specifications of Comm 82.31 (17)
    Vent size associated with combination drain and vent system meets design specifications of Comm 82.31 (17)

  12. Design the installation of a sanitary sump vent
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Location of a sump vent using Comm 82.31 (8)
    Developed length of sump vent is determined according to Comm 82.31-4
    Vent size is determined according to Comm 82.31 (14) (i)
    Conversion of total gpm to dfu's is calculated according to Comm 82.30 (3) (b)
    Branch vent is sized according to Comm 82.31-3

  13. Design the installation of a vent stack, stack vent and vent header
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Learner differentiates between vent stack, stack vent and vent header according to Comm 82.31 (4) and Comm 81.01
    Vent stack and stack vent are connected to the drain stack according to Comm 82.31 (4)
    Vent stack, stack vent and vent header are sized according to Comm 82.31 (14) (a) and (b)
    Vent header is connected to the venting system according to Comm 81.01

  14. Design the installation of a yoke vent and a relief vent for a drain stack offsets
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Learner differentiates between a yoke vent and a relief vent for stack offsets according to Comm 82.31 (5)
    Yoke vents and relief vents for stack offsets meets design specifications of Comm 82.31 (6)
    Yoke vent and relief vents for stack offsets are sized according to Comm 82.31 (14)

  15. Design the installation of a yoke vent for drain stacks of more than ten branch intervals
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Yoke vents for drain stacks of more than 10 branch intervals meets design specifications of Comm 82.31 (6)
    Yoke vents for drain stacks of more than 10 branch intervals are sized according to Comm 82.31 (14)

  16. Analyze air admittance valves (AAV's) as "product approved alternate systems"
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book
    With the aid of the Wisconsin Plumbing Product Register in class or on - line at www.commerce.state.wi.us/sb
    through a class sizing practice
    through an air test of an air admittance valve (AAV)
    Criteria
    learner confirms air admittance valves currently approved as a "plumbing product alternate systems"
    learner identifies an air admittance valve(AAV) system with minimum pipe diameter, dfu load, and maximum developed length as per Wisconsin plumbing code