MECHANICAL STANDARDS

Building Codes and Standards

HVAC

• ASHRAE Guideline 0-2005, “The Commissioning Process”
• ASHRAE Guideline 1.1 -2007, “HVAC&R Technical Requirements for The Commissioning Process”
• ANSI/ASHRAE 15-2007, “Safety Standard for
  Refrigeration Systems”
• ASHRAE 52.2-2007, “Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size”
• ASHRAE 55-2004, “Thermal Environmental Conditions for Human Occupancy”
• ASHRAE 62.1-2007, “Ventilation for Acceptable Indoor
  Air Quality”
• ASHRAE 62.2-2007, “Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings”
• ANSI/ASHRAE/IESNA 90.1-2007, “Energy Standard for Buildings Except Low-Rise Residential Buildings”
• ANSI/ASHRAE 90.2-2007, “Energy-Efficient Design of Low-Rise Residential Buildings”
• IECC 2006 “International Energy Conservation Code”
• IMC 2006 “International Mechanical Code”
• ANSI/SMACNA 006-2006, “HVAC Duct Construction Standards – Metal and Flexible”
• NFPA Codes and Standards (See Safety/Fire
  Protection Standards)

Plumbing

• IPC 2006 “International Plumbing Code”
• ABAAS “Architectural Barriers Act Accessibility Standard”
  (Barrier-Free Plumbing Fixtures)

Fuel Systems

• 2006 IFGC “International Fuel Gas Code”
• NFPA Codes and Standards (See Safety/Fire
  Protection Standards)
• API RP 1604-1996, “Closure of Underground Petroleum Storage Tanks”
• API RP 1615-1996, “Installation of Underground Petroleum Storage Systems”
• PEI RP 100-2005, “Recommended Practices for Installation of Underground Liquid Storage Systems”
• PEI RP 200-2003, “Recommended Practices for Installation of Aboveground Storage Systems for Motor Vehicle Fueling”
• UL 58-1996, “Standard for Steel Underground Tanks for Flammable and Combustible Liquids”
• UL 142-2006, “Standard for Steel Aboveground Tanks for Flammable and Combustible Liquids”
• UL 1316-1994, “Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products, Alcohols, and Alcohol-Gasoline Mixtures”
• “UL 2085-1997, “Standard for Protected Aboveground Tanks for Flammable and Combustible Liquids”

Stationary Engines and Cogeneration

• NFPA Codes and Standards (See Safety/Fire
  Protection Standards)

Conveying Systems

• ANSI/ASME A17.1-2007, “Safety Code for Elevators
  and Escalators”
• ANSI MH 30.1-2007, “Specification for Dock Leveling Devices”
• ASME B30.11-2004, “Monorails and Underhung Cranes”
• ASME B30.16-2007, “Overhead Hoists (Underhung)”
• ICC/ANSI A117.1-2003, “Accessible and Usable Buildings
  and Facilities”
• ANSI/ALI ALCTV-1998, “Safety Requirements for Automotive Lifts - Construction, Testing, and Validation”

Directives, Standards, and NPS Guidelines

Mechanical Drawing Preparation Standards

• See Drafting Standards

Professional Guidance

• HVAC
• Outdoor Design Conditions: 2005 ASHRAE “Fundamentals Handbook”, Chapter 28 (Climatic Design Information)
• Hot and Humid Climates: ASHRAE “Guide for Buildings in Hot and Humid Climates”
• Energy Conservation:
• ASHRAE “Advanced Energy Design Guide for Small
  Office Buildings”
• ASHRAE “Advanced Energy Design Guide for Small
  Retail Buildings”
• ASHRAE “Advanced Energy Design Guide for Small Warehouses and Self Storage Buildings”
• Building Material Thermal Properties: 2005 ASHRAE “Handbook
  of Fundamentals” Chapter 25 (Thermal and Water Vapor Transmission Data)
• Indoor Design Conditions for Public, Office, and Living Spaces:
• Winter: 72 degrees F
• Summer: 75 degrees F
• Maximum Relative Humidity: 60%
• Indoor Design Conditions for Shop and Storage Spaces:
• Winter: 65 degrees F
• Summer: 80 degrees F
• General Ventilation: In accordance with ASHRAE 62.
• Restroom Ventilation: Minimum 2 CFM per square foot of floor area.
• Acoustical Criteria (maximum values):
• Auditoriums and Exhibit Spaces: NC25
• Office Spaces: NC35
• Shop Spaces: NC45
• Refrigerant Bearing Equipment: All refrigerant bearing equipment shall be CFC-free.



• Plumbing



• Domestic Water Heating: 2007 ASHRAE “HVAC Applications Handbook”, Chapter 49 (Service Water Heating)
• Compressed Air Systems: 1988 CAGI “Compressed Air and
  Gas Handbook”
• Plumbing Fixtures: All plumbing fixtures and fittings shall be
  low-flow water conserving types, conforming to 1992 Energy Policy
  Act (EPAct) requirements.
• Backflow Prevention: Comply with each park's backflow prevention regulations. As minimums, provide double check valve assemblies on all fire services or other water service connections that may produce objectionable backflow and reduced pressure zone backflow assemblies on all makeup water connections to HVAC equipment or other water service connections that may produce hazardous backflow.
• Metering: All domestic water, reclaimed water, and fuel gas services
  to each building shall be metered in accordance with NPS Staff Directive 78-10.
• Water Pressure: Pressure reducing valves shall be provided as necessary to limit water pressure in buildings to 80 psig maximum. Booster pumps shall be provided as necessary to maintain a minimum of 25 psig at the furthest plumbing fixture at design flowrate conditions.

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