Overview of Division 15

Division 15 encompasses Mechanical systems, specifically HVAC (Heating, Ventilation, and Air Conditioning), Plumbing, and Fire Protection. These systems play a crucial role in ensuring the functionality, safety, and efficiency of modern buildings. This white paper provides insights into the scope, standards, and applications of Division 15.

Standards and Associations

  • ASSE: The American Society of Sanitary Engineering (www.asse-plumbing.org) establishes standards for safe and efficient plumbing practices, which are integral to Division 15 systems.

Subsections of Division 15

15-a: Plumbing

This section applies to contractors involved in the installation, servicing, and repair of systems such as gas, steam, hot water, and other pipe fittings, including building connections. Specific applications include:

  • Lawn sprinkler installation and servicing.
  • Low-pressure hot water heat systems.
  • Hot water radiant heating.
  • Tube radiation and thermostat systems.
  • Floor drains and associated accessories.

15-b: Fire Sprinkler

Includes installation, maintenance, and servicing of fire sprinkler systems, ensuring compliance with safety standards and regulations.

15-e: HVAC Turnkey

Focuses on complete HVAC solutions, from design and installation to servicing and maintenance, offering end-to-end support for building climate control systems.

15-g: Mechanical Testing & Balancing

Covers the testing and balancing of mechanical systems to ensure they operate efficiently and meet specified performance standards.

Detailed Scope of Plumbing Work

General Scope

Plumbing work under Division 15 includes material and labor for compliant systems as specified in construction plans. The scope may encompass:

  • Installation and repair of gas, steam, and hot water systems.
  • Integration of building connections for plumbing systems.
  • Low-pressure hot water heat systems.
  • Lawn sprinkler systems.

Specific Deliverables

  1. Material & Equipment: Provide materials, labor, and equipment for compliant plumbing systems per plans and specifications.
  2. Radiant Heat: Install hot water radiant heat panels in designated areas, e.g., Spa 124 (see ceiling plan).
  3. Tube Radiation: Provide fin tube radiation, thermostats, and accessories.
  4. Toilet Seats: Install black toilet seats as indicated.
  5. Insulation: Apply mineral wool for through-wall and ceiling penetrations.
  6. Drainage:
    • Install drains for new moss walls.
    • Provide floor drains for laundry equipment.
    • Water and drainage systems for washers and dryers.
  7. Fixtures:
    • New water coolers, water heaters, and mop sinks.
    • Repair condensate drains and existing gas piping.
    • Minor restroom updates.

Systems and Components

Plumbing Fixtures

  • Shower pans.
  • Toilet accessories.
  • Black toilet seats (where specified).

Domestic Water Distribution

  • Hot and cold water systems.
  • Water heaters and related components.

Sanitary Systems

  • Sanitary waste systems.
  • Rainwater drainage systems.

Other Plumbing Systems

  • Gas distribution systems.
  • Balancing and testing for efficient operation.

Integration of MEP Systems

Division 15 aligns with Mechanical, Electrical, and Plumbing (MEP) systems to ensure comprehensive building functionality. These systems collectively address:

  • Domestic Water Distribution: Efficient and safe water supply systems.
  • Sanitary Waste: Reliable drainage and waste management systems.
  • Gas Distribution: Safe and compliant gas piping and fixtures.
  • Fire Protection: Fire sprinkler systems to meet safety codes.

Conclusion

Division 15 encompasses essential components of modern building construction, including HVAC, plumbing, and fire protection systems. By adhering to industry standards and ensuring proper integration with other MEP systems, Division 15 ensures the safety, efficiency, and functionality of the built environment. We learned all this from our Engage Prospect program. Read more here.