6.1: Air Ventilation and Quality

(35 maximum points possible)

6.1.1 Ventilation Air Quantity (9 points)

GREEN GLOBES #6.1.1.1 - ANSI #11.1.1.1 Is the quantity of ventilation for the building compliant with one of the following?

• ANSI/ASHRAE Standard 62.1-2013; Ventilation for Acceptable Indoor Air Quality 
• The ICC International Mechanical Code (ICC IMC 2015); 
• IAPMO UMC (2015): Uniform Mechanical Code; 
• ANSI/ASHRAE/ASHE Standard 170-2013, Ventilation of Health Care Facilities; OR 
• Local codes or standards (if more stringent)
  • Yes (9 points)
  • No (0 points)

References 

• ANSI/ASHRAE/ASHE Standard 170-2013 
• ANSI/ASHRAE Standard 62.1-2013 
• IAPMO 2009 Uniform Mechanical Code: Section 402 
• ICC IMC 2009: 2009 International Code Council (ICC) International Mechanical Code(IMC): Section 605

Recommended Documents 

• HVAC drawings and specifications 
• Ventilation schedule and tables
• Ventilation air quality design data 
• Specifications for ventilation systems, CO2 sensing and ventilation control equipment 
• Local ventilation codes or standards 
• List of regularly occupied zones and associated air distribution system 
• Filter submittals 
• Engineering drawings and specifications for ductwork 
• Balancing reports for the ventilation systems

6.1.2 Air Change Effectiveness (9 points)

GREEN GLOBES #6.1.2.1 - ANSI #11.1.2.1 Are the following strategies implemented when ventilation systems are used? 

• For mechanical ventilation systems, the zone air distribution effectiveness Ez value is greater than or equal to 0.9 in all regularly occupied spaces, excluding circulation and transitional spaces. 
• Natural ventilation systems are designed in accordance with Section 6.4 of ANSI/ ASHRAE Standard 62.1- 2013, or are designed using professionally accepted sophisticated analytical methods such as computational fluid dynamics.
  • Yes (9 points)
  • No (0 points)

Assessment Guidance

The Ez value is determined using Table 11.1.2.1.

References 

• ANSI/ASHRAE Standard 62.1-2013, Section 6.2, Section 6.4

Recommended Documents

• HVAC drawings and specifications 
• Ventilation schedule and tables 
• Ventilation air quality design data
• Specifications for ventilation systems, CO2 sensing and ventilation control equipment 
• Local ventilation codes or standards 
• List of regularly occupied zones and associated air distribution system 
• Filter submittals 
• Engineering drawings and specifications for ductwork 
• Balancing reports for the ventilation systems

6.1.3 Air Handling Equipment (11 points)

GREEN GLOBES #6.1.3.1 - ANSI #11.1.3.1 Is air handling equipment equipped with filtration as follows? 

• Air handling equipment that provides ventilation air: minimum MERV 13

AND 

• Terminal equipment that circulates room or zone air: minimum MERV 8.
  • Yes (6 points)
  • No (0 points)
  • N/A

Assessment Guidance

Examples of air handling equipment that provides ventilation air is central mixed air equipment, make-up air equipment, ventilation equipment for “compartmental” systems such as fan coils or unitary heat pumps.

Examples of terminal equipment that circulates room or zone air is fan coils or unitary heat pumps.

Not applicable where non-ducted circulating unitary equipment serves only a single zone (e.g. unit heaters, force-flows).

Recommended Documents 

• HVAC drawings and specifications 
• Ventilation schedule and tables 
• Ventilation air quality design data 
• Occupant density calculation 
• List of regularly occupied zones and associated air distribution system 
• Local ventilation codes or standards 
• Engineering drawings and specifications for ductwork 
• Balancing reports for the ventilation systems 
• Air-handling equipment submittals

GREEN GLOBES #6.1.3.2 - ANSI #11.1.3.2 Are interior liners that could harbor microbial growth AND/OR erode in the air stream avoided in any outdoor air, return air, and supply air ductwork, or any fan, coil, terminal, or other devices exposed to the airstream?

• Yes (5 points)
• No (0 points)
• N/A

Assessment Guidance

Not applicable where a building does not have ductwork with radiant systems and operable windows.

Recommended Documents 

• HVAC drawings and specifications 
• Ventilation schedule and tables 
• Ventilation air quality design data 
• Local ventilation codes or standards 
• List of regularly occupied zones and associated air distribution system 
• Filter submittals 
• Engineering drawings and specifications for ductwork
• Balancing reports for the ventilation systems 
• Air-handling equipment submittals

6.1.4 CO2 Sensing and Ventilation Control Equipment

GREEN GLOBES #6.1.4.1 - ANSI #11.1.4.1 Do densely occupied rooms with variable occupancy have CO2 sensing and ventilation control equipment?

• Yes (6 points)
• No (0 points)
• N/A

Assessment Guidance

A densely occupied room is 25 or more people per 1,000 ft.2 (92.9 m2).

Examples of variable occupancy rooms are meeting rooms or assembly areas.

Not applicable where there are no densely occupied spaces with variable occupancy.

Recommended Documents 

• Design drawings 
• Specifications for ventilation systems, CO2 sensing and ventilation control equipment 
• Occupant density calculation 
• HVAC drawings and specifications 
• List of regularly occupied zones and associated air distribution system 
• Construction documents and specifications

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