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Refrigerant management

EA7 | Possible point

Intent

To reduce stratospheric ozone depletion.

To reduce stratospheric ozone depletion.

To reduce stratospheric ozone depletion.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global climate change.

Reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global warming.

To reduce stratospheric ozone depletion.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global warming.

Reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global warming.

Reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global warming.

Reduce ozone depletion and support early compliance with the Montreal Protocol.

Reduce ozone depletion and support early compliance with the Montreal Protocol.

Reduce ozone depletion and support early compliance with the Montreal Protocol.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce stratospheric ozone depletion.

To reduce stratospheric ozone depletion.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce stratospheric ozone depletion.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

To reduce stratospheric ozone depletion.

To reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

Requirements

Zero use of chlorofluorocarbon (CFC)-based refrigerants in new base building heating, ventilating, air conditioning and refrigeration (HVAC&R) systems. When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion prior to project completion. Phase-out plans extending beyond the project completion date will be considered on their merits.

Existing small HVAC units (defined as containing less than 0.5 pounds (228 grams) of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other equipment that contains less than 0.5 pounds (228 grams) of refrigerant, are not considered part of the base building system and are not subject to the requirements of this prerequisite.

Credit substitution available

You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

Zero use of chlorofluorocarbon (CFC)-based refrigerants in tenant heating, ventilating, air conditioning and refrigeration (HVAC&R) systems used within the LEED project scope of work.

Credit substitution available

You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

Zero use of chlorofluorocarbon (CFC)-based refrigerants in heating, ventilating, air conditioning and refrigeration (HVAC&R) base building systems unless a third-party audit (as defined in the LEED Reference Guide for Green Building Operations & Maintenance, 2009 Edition) shows that system replacement or conversion is not economically feasible or it is demonstrated that a phase-out plan for CFC-based refrigerants is in place.

Required economic analysis: The replacement of a chiller is considered not economically feasible if the simple payback of the replacement is greater than 10 years. To determine the simple payback, divide the cost of implementing the replacement by the annual cost avoidance for energy that results from the replacement and any difference in maintenance costs. If CFC-based refrigerants are maintained in the building, reduce annual leakage to 5% or less using EPA Clean Air Act, Title VI, Rule 608 procedures governing refrigerant management and reporting, and reduce the total leakage over the remaining life of the unit to less than 30% of its refrigerant charge.

Small HVAC&R units (defined as containing less than 0.5 pounds of refrigerant), standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant are not considered part of the base building system and are exempt.

Credit substitution available

You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

Option 1

Do not use refrigerants.

OR

Option 2

Select refrigerants and heating, ventilating, air conditioning and refrigeration (HVAC&R) that minimize or eliminate the emission of compounds that contribute to ozone depletion and global climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

LCGWP +

LCODP x

105

100


Calculation definitions for LCGWP + LCODP x 105 ≤ 100
LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life

LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)

ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of gross ARI rated cooling capacity)

Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

(

LCGWP + LCODP x 105

) x

Qunit

≤ 100
——————————————————————————————
Qtotal

Calculation definitions for [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (tons)
Qtotal = Total gross ARI rated cooling capacity of all HVAC or refrigeration

Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

Option 1

Do not use refrigerants.

OR

Option 2

Select refrigerants and heating, ventilating, air conditioning and refrigeration (HVAC&R) equipment that minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

Imperial Units

LCGWP + LCODP x 105 100
Metric units

LCGWP + LCODP x 105 13
Calculation definitions for LCGWP + LCODP x 105 100 Calculation definitions for LCGWP + LCODP x 105 13
(Metric units)
LCODP = [ODPr x (Lr x Life + Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life + Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
LCODP: Lifecycle Ozone Depletion Potential (lb CFC 11/Ton-Year) LCODP: Lifecycle Ozone Depletion Potential
(kg CFC 11/(kW/year))
LCGWP: Lifecycle Direct Global Warming Potential (lb CO2/Ton-Year) LCGWP: Lifecycle Direct Global Warming Potential
(kg CO2/(kW/year))
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lb CO2/lbr) ODPr: Ozone Depletion Potential of Refrigerant
(0 to 0.2 kg CFC 11/kg r)
ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lb CFC 11/lbr) GWPr: Global Warming Potential of Refrigerant
(0 to 12,000 kg CO2/kg r)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated) Lr: Refrigerant Leakage Rate
(0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated) Mr: End-of-life Refrigerant Loss
(2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of gross ARI rated cooling capacity) Rc: Refrigerant Charge
(0.065 to 0.65 kg of refrigerant per kW of ARI rated or Eurovent Certified cooling capacity)
Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated) Life: Equipment Life
(default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

Imperial units             Metric units
(  LCGWP + LCODP x 105 ) x Qunit   ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
———————————————————————————
Qtotal
  ———————————————————————————
Qtotal

Calculation definitions for [ (LCGWP + LCODP x 105) x Qunit ] / Qtotal 100 Calculation definitions for
[
(LCGWP + LCODP x 105) x Qunit ] / Qtotal 13
(Metric units)
Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
Qtotal = Total gross ARI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

Option 1

Do not use refrigerants in base building heating, ventilating, air conditioning and refrigeration (HVAC&R) systems.

OR

Option 2

Select refrigerants and heating, ventilating, air conditioning and refrigeration (HVAC&R) that minimize or eliminate the emission of compounds that contribute to ozone depletion and global climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

LCGWP +

LCODP x

105

100


Calculation definitions for LCGWP + LCODP x 105 ≤ 100
LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life

LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)

ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of gross ARI rated cooling capacity)

Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

(

LCGWP + LCODP x 105

) x

Qunit

≤ 100
——————————————————————————————
Qtotal

Calculation definitions for [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (tons)
Qtotal = Total gross ARI rated cooling capacity of all HVAC or refrigeration

Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

Credit substitution available

You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

Option 1

Do not use refrigerants.

OR

Option 2

Select refrigerants and heating, ventilating, air conditioning and refrigeration (HVAC&R) equipment that minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

Imperial Units

LCGWP + LCODP x 105 100
Metric units

LCGWP + LCODP x 105 13
Calculation definitions for LCGWP + LCODP x 105 100 Calculation definitions for LCGWP + LCODP x 105 13
(Metric units)
LCODP = [ODPr x (Lr x Life + Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life + Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
LCODP: Lifecycle Ozone Depletion Potential (lb CFC 11/Ton-Year) LCODP: Lifecycle Ozone Depletion Potential
(kg CFC 11/(kW/year))
LCGWP: Lifecycle Direct Global Warming Potential (lb CO2/Ton-Year) LCGWP: Lifecycle Direct Global Warming Potential
(kg CO2/(kW/year))
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lb CO2/lbr) ODPr: Ozone Depletion Potential of Refrigerant
(0 to 0.2 kg CFC 11/kg r)
ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lb CFC 11/lbr) GWPr: Global Warming Potential of Refrigerant
(0 to 12,000 kg CO2/kg r)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated) Lr: Refrigerant Leakage Rate
(0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated) Mr: End-of-life Refrigerant Loss
(2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of gross ARI rated cooling capacity) Rc: Refrigerant Charge
(0.065 to 0.65 kg of refrigerant per kW of ARI rated or Eurovent Certified cooling capacity)
Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated) Life: Equipment Life
(default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

Imperial units             Metric units
(  LCGWP + LCODP x 105 ) x Qunit   ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
———————————————————————————
Qtotal
  ———————————————————————————
Qtotal

Calculation definitions for [ (LCGWP + LCODP x 105) x Qunit ] / Qtotal 100 Calculation definitions for
[
(LCGWP + LCODP x 105) x Qunit ] / Qtotal 13
(Metric units)
Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
Qtotal = Total gross ARI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

Option 1

Do not use refrigerants.

OR

Option 2

Select refrigerants and HVAC&R that minimize or eliminate the emission of compounds that contribute to ozone depletion and global warming. The base building HVAC&R equipment shall comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

LCGWP + LCODP x 105 ≤ 100

Where:
LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)
ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of Gross ARI rated cooling capacity)
Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building level HVAC&R equipment shall be applied using the following formula:

[ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100

Where:
Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (Tons)
Qtotal = Total Gross ARI rated cooling capacity of all HVAC or refrigeration

Small HVAC units (defined as containing less than 0.5 lbs of refrigerant), and other equipment such as standard refrigerators, small water coolers, and any other cooling equipment that contains less than 0.5 lbs of refrigerant, are not considered part of the “base building” system and are not subject to the requirements of this credit.

AND

Do not install fire suppression systems that contain ozone-depleting substances (CFCs, HCFCs or Halons).

Do not use CFC-based refrigerants in HVAC&R base building systems unless a third-party audit (as defined in the LEED for Existing Buildings: Operations & Maintenance Reference Guide) shows that system replacement or conversion is not economically feasible or it is demonstrated that a phase-out plan for CFC-based refrigerants is in place.

Required economic analysis: The replacement of a chiller is considered not economically feasible if the simple payback of the replacement is greater than 10 years. To determine the simple payback, divide the cost of implementing the replacement by the annual cost avoidance for energy that results from the replacement and any difference in maintenance costs. If CFC-based refrigerants are maintained in the building, reduce annual leakage to 5% or less using EPA Clean Air Act, Title VI, Rule 608 procedures governing refrigerant management and reporting and reduce the total leakage over the remaining life of the unit to less than 30% of its refrigerant charge.

Small HVAC&R units (defined as containing less than 0.5 pounds of refrigerant), standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant are not considered part of the base building system and are exempt.

Choose one of the following options:

Option A

Do not use refrigerants in base building HVAC&R systems.

Option B

Complete both of the following:

  • Select refrigerants and HVAC&R equipment that minimize or eliminate the emission of compounds that contribute to ozone depletion and global warming. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:
    LCGWP + LCODP x 105 ≤ 100
    Where:
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
    GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
    Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
    Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
    Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of cooling capacity)
    Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)
     
    For multiple types of equipment, a weighted average of all base building level HVAC&R equipment must be applied using the following formula:
    [ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Where:
    Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (tons)
    Qtotal = Total Gross ARI rated cooling capacity of all HVAC or refrigeration
  • Do not operate fire-suppression systems that contain ozone-depleting substances (CFCs, HCFCs or halons).

Small HVAC units (defined as containing less than 0.5 pounds of refrigerant), standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant are not considered part of the base building system and are exempt.
 

Option 1

Do not use refrigerants.

OR

Option 2

Select refrigerants and HVAC&R that minimize or eliminate the emission of compounds that contribute to ozone depletion and global warming. The base building HVAC&R equipment shall comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

LCGWP + LCODP x 105 ≤ 100

Where:
LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)
ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of cooling capacity)
Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building level HVAC&R equipment shall be applied using the following formula:

[ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100

Where:
Qunit = Cooling capacity of an individual HVAC or refrigeration unit (Tons)
Qtotal = Total cooling capacity of all HVAC or refrigeration

Small HVAC units (defined as containing less than 0.5 lbs of refrigerant), and other equipment such as standard refrigerators, small water coolers, and any other cooling equipment that contains less than 0.5 lbs of refrigerant, are not considered part of the “base building” system and are not subject to the requirements of this credit.

AND

Do not install fire suppression systems that contain ozone-depleting substances (CFCs, HCFCs or Halons).

Option 1

Do not use refrigerants.

OR

Option 2

Select refrigerants and HVAC&R that minimize or eliminate the emission of compounds that contribute to ozone depletion and global warming. The base building HVAC&R equipment shall comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

LCGWP + LCODP x 105 ≤ 100

Where:
LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)
ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of Gross ARI rated cooling capacity)
Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building level HVAC&R equipment shall be applied using the following formula:

[ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100

Where:
Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (Tons)
Qtotal = Total Gross ARI rated cooling capacity of all HVAC or refrigeration

Small HVAC units (defined as containing less than 0.5 lbs of refrigerant), and other equipment such as standard refrigerators, small water coolers, and any other cooling equipment that contains less than 0.5 lbs of refrigerant, are not considered part of the “base building” system and are not subject to the requirements of this credit.

AND

Do not install fire suppression systems that contain ozone-depleting substances (CFCs, HCFCs or Halons).

Option A
  • Do not operate base building HVAC, refrigeration or fire suppression systems that contain CFCs, HCFCs or Halons.
Option B
  • Do not operate fire suppression systems that contain CFCs, HCFCs or halons,
  • AND

  • Reduce emissions of refrigerants from base building HVAC and refrigeration systems to less than 3% of charge per year over the performance period using EPA Clean Air Act, Title VI, Rule 608 procedures governing refrigerant management and reporting and reduce the leakage over the remainder of unit life to below 25%.
  • Install base building level HVAC and refrigeration equipment and fire suppression systems that do not contain HCFCs or Halons.

    Install base building level HVAC and refrigeration equipment and fire suppression systems that do not contain HCFCs or Halons.

    Option 1

    Do not use refrigerants.

    OR

    Option 2

    Select refrigerants and heating, ventilating, air conditioning and refrigeration (HVAC&R) that minimize or eliminate the emission of compounds that contribute to ozone depletion and global climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

    LCGWP +

    LCODP x

    105

    100


    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life

    LCODP: Lifecycle Ozone Depletion Potential (lbCFC11/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential (lbCO2/Ton-Year)
    GWPr: Global Warming Potential of Refrigerant (0 to 12,000 lbCO2/lbr)

    ODPr: Ozone Depletion Potential of Refrigerant (0 to 0.2 lbCFC11/lbr)
    Lr: Refrigerant Leakage Rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)
    Mr: End-of-life Refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)
    Rc: Refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of gross ARI rated cooling capacity)

    Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

    (

    LCGWP + LCODP x 105

    ) x

    Qunit

    ≤ 100
    ——————————————————————————————
    Qtotal

    Calculation definitions for [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Qunit = Gross ARI rated cooling capacity of an individual HVAC or refrigeration unit (tons)
    Qtotal = Total gross ARI rated cooling capacity of all HVAC or refrigeration

    Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

    Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

    Do not use chlorofluorocarbon (CFC)-based refrigerants in new heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems. When reusing existing HVAC&R equipment, complete a comprehensive CFC phase-out conversion before project completion. Phase-out plans extending beyond the project completion date will be considered on their merits.

    Existing small HVAC&R units (defined as containing less than 0.5 pound (225 grams) of refrigerant) and other equipment, such as standard refrigerators, small water coolers, and any other equipment that contains less than 0.5 pound (225 grams) of refrigerant, are exempt.

    Establishment

    Do not use chlorofluorocarbon (CFC)-based refrigerants in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems unless a third-party audit shows that system replacement or conversion is not economically feasible or unless a phase-out plan for CFC-based refrigerants is in place.
    The replacement or conversion of HVAC&R equipment is considered not economically feasible if the simple payback of the replacement or conversion is greater than 10 years. Perform the following economic analysis:

    Simple payback = Cost of replacement or conversion > 10
    Resulting annual energy cost difference + Resulting annual maintenance and refrigerant cost difference

    If CFC-based refrigerants are maintained in the building, reduce annual leakage to 5% or less using the procedures in the Clean Air Act, Title VI, Rule 608, governing refrigerant management and reporting (or a local equivalent for projects outside the U.S.), and reduce the total leakage over the remaining life of the unit to less than 30% of its refrigerant charge.

    Small HVAC&R units (defined as containing less than 0.5 pound (225 grams) of refrigerant), standard refrigerators, small water coolers, and any other cooling equipment that contains less than 0.5 pound (225 grams) of refrigerant are exempt.

    Performance

    None.

    Option 1. No refrigerants or low-impact refrigerants (1 point)

    Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50.

    OR

    Option 2. Calculation of refrigerant impact (1 point)

    Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:

    IP units  

    LCGWP + LCODP x 105 100
    SI units

    LCGWP + LCODP x 105 13
    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    (IP units)
    Calculation definitions for LCGWP + LCODP x 105 ≤ 13
    (SI units)
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential
    (lb CFC 11/Ton-Year)
    LCODP: Lifecycle Ozone Depletion Potential
    (kg CFC 11/(kW/year))
    LCGWP: Lifecycle Direct Global Warming Potential
    (lb CO2/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential
    (kg CO2/kW-year)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 lb CO2/lbr)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 kg CO2/kg r)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 lb CFC 11/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 kg CFC 11/kg r)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Rc: Refrigerant Charge
    (0.5 to 5.0 lbs of refrigerant per ton of gross AHRI rated cooling capacity)
    Rc: Refrigerant Charge
    (0.065 to 0.65 kg of refrigerant per kW of AHRI rated or Eurovent Certified cooling capacity)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, calculate a weighted average of all base building HVAC&R equipment, using the following formula:

    IP units     SI units
    ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 100 ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
    Qtotal Qtotal

    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 13
    (IP units) (SI units)
    Qunit = Gross AHRI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
    Qtotal = Total gross AHRI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

    Option 1. No refrigerants or low-impact refrigerants (1 point)

    Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50.

    OR

    Option 2. Calculation of refrigerant impact (1 point)

    Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:

    IP units  

    LCGWP + LCODP x 105 100
    SI units

    LCGWP + LCODP x 105 13
    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    (IP units)
    Calculation definitions for LCGWP + LCODP x 105 ≤ 13
    (SI units)
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential
    (lb CFC 11/Ton-Year)
    LCODP: Lifecycle Ozone Depletion Potential
    (kg CFC 11/(kW/year))
    LCGWP: Lifecycle Direct Global Warming Potential
    (lb CO2/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential
    (kg CO2/kW-year)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 lb CO2/lbr)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 kg CO2/kg r)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 lb CFC 11/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 kg CFC 11/kg r)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Rc: Refrigerant Charge
    (0.5 to 5.0 lbs of refrigerant per ton of gross AHRI rated cooling capacity)
    Rc: Refrigerant Charge
    (0.065 to 0.65 kg of refrigerant per kW of AHRI rated or Eurovent Certified cooling capacity)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, calculate a weighted average of all base building HVAC&R equipment, using the following formula:

    IP units     SI units
    ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 100 ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
    Qtotal Qtotal

    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 13
    (IP units) (SI units)
    Qunit = Gross AHRI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
    Qtotal = Total gross AHRI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

    Meet Option 1 or 2 for all HVAC systems.

    Stores with commercial refrigeration systems must comply with the following.

    • Use only non-ozone-depleting refrigerants.
    • Select equipment with an average HFC refrigerant charge of no more than 1.75 pounds of refrigerant per 1,000 Btu/h ( 2.72 kg of refrigerant per kW) total evaporator cooling load.
    • Demonstrate a predicted store-wide annual refrigerant emissions rate of no more than 15%. Conduct leak testing using the procedures in GreenChill’s best practices guideline for leak tightness at installation.

    Alternatively, stores with commercial refrigeration systems may provide proof of attainment of EPA GreenChill’s silver-level store certification for newly constructed stores.

    Option 1. No refrigerants or low-impact refrigerants (1 point)

    Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50.

    OR

    Option 2. Calculation of refrigerant impact (1 point)

    Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:

    IP units  

    LCGWP + LCODP x 105 100
    SI units

    LCGWP + LCODP x 105 13
    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    (IP units)
    Calculation definitions for LCGWP + LCODP x 105 ≤ 13
    (SI units)
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential
    (lb CFC 11/Ton-Year)
    LCODP: Lifecycle Ozone Depletion Potential
    (kg CFC 11/(kW/year))
    LCGWP: Lifecycle Direct Global Warming Potential
    (lb CO2/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential
    (kg CO2/kW-year)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 lb CO2/lbr)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 kg CO2/kg r)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 lb CFC 11/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 kg CFC 11/kg r)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Rc: Refrigerant Charge
    (0.5 to 5.0 lbs of refrigerant per ton of gross AHRI rated cooling capacity)
    Rc: Refrigerant Charge
    (0.065 to 0.65 kg of refrigerant per kW of AHRI rated or Eurovent Certified cooling capacity)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, calculate a weighted average of all base building HVAC&R equipment, using the following formula:

    IP units     SI units
    ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 100 ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
    Qtotal Qtotal

    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 13
    (IP units) (SI units)
    Qunit = Gross AHRI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
    Qtotal = Total gross AHRI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

    Meet Option 1 or 2 for all HVAC systems.

    Stores with commercial refrigeration systems must comply with the following.

    • Use only non-ozone-depleting refrigerants.
    • Achieve an average HFC refrigerant charge of no more than 1.75 pounds of refrigerant per 1,000 Btu/h (2.72 grams of refrigerant per kW) total evaporator cooling load.
    • Achieve a store-wide annual refrigerant emissions rate of no more than 15%.

    Alternatively, stores with commercial refrigeration systems may provide proof of attainment of EPA GreenChill’s silver-level store certification for fully operational food retail stores.

    Establishment

    Option 1. No refrigerants or low-impact refrigerants (1 point)

    Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50.

    OR

    Option 2. Calculation of refrigerant impact (1 point)

    Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:

    IP units  

    LCGWP + LCODP x 105 100
    SI units

    LCGWP + LCODP x 105 13
    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    (IP units)
    Calculation definitions for LCGWP + LCODP x 105 ≤ 13
    (SI units)
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential
    (lb CFC 11/Ton-Year)
    LCODP: Lifecycle Ozone Depletion Potential
    (kg CFC 11/(kW/year))
    LCGWP: Lifecycle Direct Global Warming Potential
    (lb CO2/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential
    (kg CO2/kW-year)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 lb CO2/lbr)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 kg CO2/kg r)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 lb CFC 11/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 kg CFC 11/kg r)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Rc: Refrigerant Charge
    (0.5 to 5.0 lbs of refrigerant per ton of gross AHRI rated cooling capacity)
    Rc: Refrigerant Charge
    (0.065 to 0.65 kg of refrigerant per kW of AHRI rated or Eurovent Certified cooling capacity)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, calculate a weighted average of all base building HVAC&R equipment, using the following formula:

    IP units     SI units
    ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 100 ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
    Qtotal Qtotal

    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 13
    (IP units) (SI units)
    Qunit = Gross AHRI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
    Qtotal = Total gross AHRI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

    Performance

    None.

    Do not use chlorofluorocarbon (CFC)-based refrigerants in new heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems. When reusing existing HVAC&R equipment, complete a comprehensive CFC phase-out conversion before project completion. Phase-out plans extending beyond the project completion date will be considered on their merits.

    Existing small HVAC&R units (defined as containing less than 0.5 pound (225 grams) of refrigerant) and other equipment, such as standard refrigerators, small water coolers, and any other equipment that contains less than 0.5 pound (225 grams) of refrigerant, are exempt.

    Option 1. No refrigerants or low-impact refrigerants (1 point)

    Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50.

    OR

    Option 2. Calculation of refrigerant impact (1 point)

    Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:

    IP units  

    LCGWP + LCODP x 105 100
    SI units

    LCGWP + LCODP x 105 13
    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    (IP units)
    Calculation definitions for LCGWP + LCODP x 105 ≤ 13
    (SI units)
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential
    (lb CFC 11/Ton-Year)
    LCODP: Lifecycle Ozone Depletion Potential
    (kg CFC 11/(kW/year))
    LCGWP: Lifecycle Direct Global Warming Potential
    (lb CO2/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential
    (kg CO2/kW-year)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 lb CO2/lbr)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 kg CO2/kg r)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 lb CFC 11/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 kg CFC 11/kg r)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Rc: Refrigerant Charge
    (0.5 to 5.0 lbs of refrigerant per ton of gross AHRI rated cooling capacity)
    Rc: Refrigerant Charge
    (0.065 to 0.65 kg of refrigerant per kW of AHRI rated or Eurovent Certified cooling capacity)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, calculate a weighted average of all base building HVAC&R equipment, using the following formula:

    IP units     SI units
    ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 100 ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
    Qtotal Qtotal

    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 13
    (IP units) (SI units)
    Qunit = Gross AHRI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
    Qtotal = Total gross AHRI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

    Meet Option 1 or 2 for all HVAC systems.

    Stores with commercial refrigeration systems must comply with the following.

    • Use only non-ozone-depleting refrigerants.
    • Select equipment with an average HFC refrigerant charge of no more than 1.75 pounds of refrigerant per 1,000 Btu/h ( 2.72 kg of refrigerant per kW) total evaporator cooling load.
    • Demonstrate a predicted store-wide annual refrigerant emissions rate of no more than 15%. Conduct leak testing using the procedures in GreenChill’s best practices guideline for leak tightness at installation.

    Alternatively, stores with commercial refrigeration systems may provide proof of attainment of EPA GreenChill’s silver-level store certification for newly constructed stores.

    Option 1. No refrigerants or low-impact refrigerants (1 point)

    Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50.

    OR

    Option 2. Calculation of refrigerant impact (1 point)

    Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:

    IP units  

    LCGWP + LCODP x 105 100
    SI units

    LCGWP + LCODP x 105 13
    Calculation definitions for LCGWP + LCODP x 105 ≤ 100
    (IP units)
    Calculation definitions for LCGWP + LCODP x 105 ≤ 13
    (SI units)
    LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life LCODP = [ODPr x (Lr x Life +Mr) x Rc]/Life
    LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life LCGWP = [GWPr x (Lr x Life +Mr) x Rc]/Life
    LCODP: Lifecycle Ozone Depletion Potential
    (lb CFC 11/Ton-Year)
    LCODP: Lifecycle Ozone Depletion Potential
    (kg CFC 11/(kW/year))
    LCGWP: Lifecycle Direct Global Warming Potential
    (lb CO2/Ton-Year)
    LCGWP: Lifecycle Direct Global Warming Potential
    (kg CO2/kW-year)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 lb CO2/lbr)
    GWPr: Global Warming Potential of Refrigerant
    (0 to 12,000 kg CO2/kg r)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 lb CFC 11/lbr)
    ODPr: Ozone Depletion Potential of Refrigerant
    (0 to 0.2 kg CFC 11/kg r)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Lr: Refrigerant Leakage Rate
    (2.0%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Mr: End-of-life Refrigerant Loss
    (10%)
    Rc: Refrigerant Charge
    (0.5 to 5.0 lbs of refrigerant per ton of gross AHRI rated cooling capacity)
    Rc: Refrigerant Charge
    (0.065 to 0.65 kg of refrigerant per kW of AHRI rated or Eurovent Certified cooling capacity)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)
    Life: Equipment Life
    (10 years; default based on equipment type, unless otherwise demonstrated)

    For multiple types of equipment, calculate a weighted average of all base building HVAC&R equipment, using the following formula:

    IP units     SI units
    ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 100 ∑ ( LCGWP + LCODP x 105 ) x Qunit ≤ 13
    Qtotal Qtotal

    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100
    Calculation definitions for
    [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 13
    (IP units) (SI units)
    Qunit = Gross AHRI rated cooling capacity of an individual HVAC or refrigeration unit (Tons) Qunit = Eurovent Certified cooling capacity of an individual HVAC or refrigeration unit (kW)
    Qtotal = Total gross AHRI rated cooling capacity of all HVAC or refrigeration Qtotal = Total Eurovent Certified cooling capacity of all HVAC or refrigeration (kW)

    Zero use of chlorofluorocarbon (CFC)-based refrigerants in new base building heating, ventilating, air conditioning and refrigeration (HVAC&R) systems. When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion prior to project completion. Phase-out plans extending beyond the project completion date will be considered on their merits.

    OPTION 1

    Do not use refrigerants.

    OR

    OPTION 2

    Select refrigerants and heating, ventilation, air conditioning and refrigeration (HVAC&R) equipment that minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

    For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

    Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

    Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

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