CARRIER PRODUCTS AND LEED CERTIFICATION

Transcription

1 CARRIER PRODUCTS AND LEED CERTIFICATION Carrier Cpation Syracuse, New Yk August 2007

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3 TABLE OF CONTENTS INTRODUCTION... 3 LEED RATING SYSTEM OVERVIEW... 4 LEED FOR NEW CONSTRUCTION... 4,5 ENERGY & ATMOSPHERE (EA)... 6 EA Prerequisite 2 Minimum Energy Perfmance EA Prerequisite 3 Fundamental Refrigerant Management EA Credit 4 Enhanced Refrigerant Management EA Credit 5 Measurement & Verification INDOOR ENVIRONMENTAL QUALITY (EQ)... 7 EQ Prerequisite 1 Minimum IAQ Perfmance Outdo Air Delivery Moniting Increased Ventilation EQ Credit 5 Indo Chemical & Pollutant Source Control EQ Credit 6.2 Controllability of Systems: Thermal Comft Thermal Comft: Design CARRIER COMMERCIAL PRODUCTS AND LEED CERTIFICATION SYSTEM SCHEMATICS Packaged Large Rooftop VAV (Variable Air Volume).. 10 Packaged Small Rooftop VVT (Variable Volume and Temperature) WSHP (Water Source Heat Pump) Tower Loop Chilled Water VAV (Variable Air Volume) Chilled Water Fan Coil Underflo Air Distribution (UFAD) INTRODUCTION There is a nationwide trend toward constructing green buildings that meet sustainable design construction standards. To help identify and promote standards f environmentally responsible construction and highperfmance operation, the U.S. Green Building Council (USGBC) developed the LEED (Leadership in Energy and Environmental Design) rating system. The LEED rating system is a widely recognized thirdparty certification standard that offers voluntary certification f buildings and accreditation of professionals. Although certification is voluntary, many federal, state, and local governments now require that the design architects engineers on official projects demonstrate that they have perfmed the data collection and analysis necessary to meet the requirements of the LEED standard. (See Fig. 1.) Fig 1. State and Local Governments with LEED Requirements 3

4 LEED RATING SYSTEM OVERVIEW The LEED rating system includes several specific standards covering all aspects of the design, operation, and construction of buildings. The LEED f New Construction (LEED-NC) standard covers new commercial construction and maj renovation projects and issues points f achieving credits in six categies of building design: Sustainable Site (SS), Water Efficiency (WE), Energy & Atmosphere (EA), Materials & Resources (MR), Indo Environmental Quality (EQ), and Innovation & Design Process (ID). The LEED f Existing Buildings (LEED-EB) standard includes guidelines f sustainable efficiency and maintenance and f upgrades to meet current perfmance requirements. The LEED-EB system can be used to certify existing non-leed buildings as well as buildings that had received certification under LEED-NC and are seeking re-certification. The USGBC encourages building owners to enroll in LEED-EB at the time of LEED-NC certification in der to achieve sustainable building perfmance. Carrier Commercial Service product and service offerings can contribute to meeting the goals of the LEED-EB standard through sustainable preventive maintenance solutions and planned upgrades to equipment and systems. Preventive Maintenance Service Agreements are available f all brands of rooftops, chillers, boilers, compresss, air-handlers, cooling towers, pumps, variable speed drives, controls and accessies. Carrier Commercial Services can also install and service building automation and control systems and energy saving solutions including microturbines and variable speed drives. These products can contribute to sustainable, efficient operation of a building and should be considered by owners seeking LEED-EB certification. The following two LEED standards are designed to address situations in which responsibility f sustainable choices is split between building developers/owners and tenants. The LEED f Commercial Interis (LEED-CI) standard includes categies that are similar to those found in the LEED-NC standard, but with a focus on categies that may be under the control of the building owners tenants. F instance, energy perfmance optimization addresses lighting and lighting controls, while resource utilization addresses interi building systems and furnishings. The LEED f Ce and Shell (LEED-CS) standard is complementary to the LEED f Commercial Interis and establishes standards f basic building elements, such as structure and building level systems, which are under the control of the building developer. Other LEED standards specifically address green building requirements f Homes, Schools, Multiple Building Campuses, and Retail Operations. A pilot program is currently underway to establish a LEED rating system f Neighbhood Development. LEED FOR NEW CONSTRUCTION This paper will focus on the LEED rating system f New Construction. As noted earlier, LEED-NC 2.2 issues points f achieving credits in the following categies: Sustainable Site, Water Efficiency, Energy & Atmosphere, Materials & Resources, Indo Environmental Quality, and Innovation & Design Process. Buildings and systems can achieve basic certification reach the silver, gold, platinum level of certification, depending on the number of points awarded. (See Fig. 2.) The LEED system does not certify products, however, the selection of products is critical to obtaining LEED certification f a building, because the right products can help meet the goals of green construction and contribute to earning LEED points. The choice of HVAC products, in particular, can have a significant impact on LEED certification, as the HVAC system directly impacts two categies that together contribute to 40% of the available points. (See Fig. 3.) Platinum (52-69) Gold (39-51) Silver (33-38) Certified (26-32) Fig Possible LEED Points 4

5 Indo Environmental Quality (15 points) HVAC Contribution 5 of 15 points Innovation & Design Process (5 points) Sustainable Site (14 points) Water Efficiency (5 points) Material & Resources (13 points) Energy & Atmosphere (17 points) HVAC Contribution 12 of 17 points Fig. 3. LEED-NC Overview The achievement of points in any particular credit area depends on the combination of products selected and the specific application of those products. Therefe, no products programs can claim that their use will guarantee that LEED points will be awarded. Carrier HVAC products, which are built to high standards of energy efficiency and indo air quality, can help building owners earn LEED points by contributing to the achievement of credits in the imptant categies of Energy & Atmosphere (EA) and Indo Environmental Quality (EQ). Success in the categy of Energy & Atmosphere recently became essential to LEED certification when the USGBC decided to institute a new requirement. The mandate requires that all newly registered LEED projects achieve at least two points in the Optimize Energy Perfmance area. These points are awarded under the EA categy. through 1.4 allow points f exceeding requirements in one of the other 5 categies of the LEED-NC rating system (i.e., Sustainable Site, Water Efficiency, Energy & Atmosphere, Materials & Resources, Indo Environmental Quality). Points in the ID categy may also be earned by demonstrating innovative perfmance in other Green Building categies. One innovative Carrier product that may contribute to a credit in the ID categy is the Carrier Microsteam turbine generat. The Carrier Microsteam turbine provides sustainable energy recovery by using existing steam sources to generate usable electric energy. The following outline lists the sections in which the application of HVAC equipment can contribute to EA and EQ credits and identifies the LEED points available if the credit standard is met. Contact your Carrier Sales engineer to discuss an innovative HVAC system that may contribute to earning ID Credits. Another LEED-NC categy to which Carrier products may make a contribution is the categy of Innovation & Design Process. In this categy, Credits 1.1 5

6 ENERGY & ATMOSPHERE (EA) 12 HVAC-RELATED LEED POINTS POSSIBLE NOTE: Two of the three prerequisites in the EA categy relate to HVAC equipment. Carrier products can meet the applicable requirements of each of these relevant prerequisites. EA Prerequisite 2 Minimum Energy Perfmance Establish the minimum level of energy efficiency f the building system by specifying Carrier equipment that meets the energy efficiency and control requirements of ASHRAE EA Prerequisite 3 Fundamental Refrigerant Management Reduce ozone depletion by specifying units that do not use CFC refrigerants. All new Carrier equipment uses non-cfc refrigerants. 1 to 10 Points Reduce energy cost of proposed building compared to ASHRAE minimum tables. Carrier units that are designed f good part-load perfmance, heat reclaim, system energy saving features such as demand control ventilation (DCV) can contribute to earning points. In addition, the Carrier HAP (Hourly Analysis Program) is an approved program f determining compliance with these requirements. EA Credit 4 Enhanced Refrigerant Management 1 Point Minimize the Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) of the system. Carrier units that use reduced refrigerant charges and environmentally sound refrigerants, such as Puron R-410A refrigerant, can meet the requirements f this credit. ODP/GWP calculation f acceptable charge of R-134a packaged unit 2.8 lb/ton scroll reciprocating chillers 3.30 lb/ton centrifugal screw chillers 3.03 lb/ton ODP/GWP calculation f acceptable charge of R-410A packaged unit 1.98 lb/ton scroll reciprocating chillers 2.11 lb/ton centrifugal screw chillers 2.17 lb/ton EA Credit 5 Measurement & Verification 1 Point Develop and implement a plan to account f building energy consumption over time. Carrier equipment control systems, such as the Carrier Comft Netwk (CCN) controls, can be configured to track energy usage and monit the perfmance of fans, compresss, heating devices. Data can be collected and used to develop trend logs. 6

7 INDOOR ENVIRONMENTAL QUALITY (EQ) 5 HVAC-RELATED LEED POINTS POSSIBLE NOTE: There are two prerequisites in the EQ categy, but only one relates to HVAC equipment. Carrier products can meet the applicable requirements of this prerequisite. EQ Prerequisite 1 Minimum IAQ Perfmance Establish minimum indo air quality (IAQ) perfmance by specifying units that meet the ventilation rates described in ASHRAE (applies to all airside equipment). Carrier units covered by this standard can meet the applicable construction and perfmance requirements. Outdo Air Delivery Moniting 1 Point Provide capacity f ventilation system moniting. This credit requires moniting of CO 2 in densely occupied spaces and moniting of outdo airflow in other spaces. Carrier units that use DCV (when output can be monited) air-handling units with airflow stations can help qualify f this point. Increased Ventilation 1 Point Improve IAQ by increasing the outdo air ventilation to 30% above that required by ASHRAE Carrier offers system options, such as energy recovery and outdo humidity control, that can contribute to meeting this requirement while maintaining energy efficiency. EQ Credit 5 Indo Chemical & Pollutant Source Control 1 Point EQ Credit 6.2 Controllability of Systems: Thermal Comft 1 Point Provide individual comft control f 50% of the building s occupants. Carrier systems that may meet this requirement include VVT systems designed f small zones; underflo air distribution systems; and individual room terminal units. Thermal Comft: Design 1 Point Control and maintain humidity as well as temperature and comply with the requirements of ASHRAE Carrier rooftop units and air handlers coupled with Carrier controls can help to meet this requirement. CARRIER COMMERCIAL PRODUCTS AND LEED CERTIFICATION The chart on pages 8 and 9 lists the key components of the maj types of HVAC systems and shows how Carrier products can contribute to points required f LEED certification. The achievement of points in any particular credit area depends on the combination of products selected and the specific application of those products. Therefe, no products programs can claim that their use will guarantee that LEED points will be awarded. Minimize and control pollutant entry into building systems. Carrier air-handling units can be provided with a MERV (Minimum Efficiency Repting Value) 13 filter system. 7

8 CARRIER COMMERCIAL PRODUCTS CONTRIBUTE TO LEED CERTIFICATION SYSTEM TYPE Packaged Large Rooftop VAV SYSTEM COMPONENTS Refrigeration Air Handler Terminal Control System Carrier Product 48/50A Z 35/45 Boxes ComftLink / Carrier Comft Netwk LEED Categies EA Credit 1 EQ Credit 6.2 EA Credit 5 EQ Credit 5 Packaged Large Rooftop CV Carrier Product 48/50A Z None ComftLink/ Carrier Comft Netwk LEED Categies EA Credit 1 NA EA Credit 5 EQ Credit 5 Packaged Small Rooftop VVT Carrier Product 48/50HE,HJ,PG,TJ,TM 33ZCD 3V with ComftLink PremierLink LEED Categies EA Credit 1 EA Credit 4 (PG only) EQ Credit 6.2 EA Credit 5 EQ Credit 5 (PG Only) Packaged Small Rooftop CV 3V with ComftLink Carrier Product 48/50HE,HJ,PG,TJ,TM None PremierLink/ Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 5 EA Credit 4 (PG only) EQ Credit 5 (PG Only) Indo Packaged VAV Carrier Product 50B 50X 35/45 Boxes Carrier Comft Netwk LEED Categies EA Credit 1, EQ Credit 6.2 EA Credit 5 Indo Packaged CV Carrier Product 50BR, BV, BY, BZ None Carrier Comft Netwk LEED Categies EA Credit 1 NA EA Credit 5 Water Source Heat Pump (Tower Loop) Carrier Product 50R, P, H, V None Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 4 NA EA Credit 5 EQ Credit 6.2 Water Source Heat Pump (Ground Loop) Carrier Product 50R, P, H, V None Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 4 NA EA Credit 5 EQ Credit 6.2 Split System VAV Carrier Product 38A 40R 39M, R 35 / 45 boxes PremierLink/ Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 1 EQ Credit 6.2 EA Credit 5 EQ Credit 5 Split System CV Carrier Product 38A 40R 39M, R None PremierLink/ Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 1 NA EA Credit 5 EQ Credit 5 8

9 CARRIER COMMERCIAL PRODUCTS CONTRIBUTE TO LEED CERTIFICATION (CONT) SYSTEM TYPE Chilled Water VAV SYSTEM COMPONENTS Refrigeration Air Handler Terminal Control System Carrier Product 30RA, 30RB, 30XA (Air-Cooled) 39M,R,S 35 / 45 boxes 30H (Water-Cooled) 39M,R,S 35 / 45 boxes ComftLink / Carrier Comft Netwk 19XR, XRV/23XRV (Water-Cooled) 39M,R,S 35 / 45 boxes LEED Categies EA Credit 1 EA Credit 1 EQ Credit 6.2 EA Credit 5 EA Credit 4 EQ Credit 5 Chilled Water CV Carrier Product 30RA, 30RB, 30XA (Air-Cooled) 39M,R,S 35 / 45 boxes 30H (Water-Cooled) 39M,R,S 35 / 45 boxes ComftLink/ Carrier Comft Netwk 19XR, XRV/23XRV (Water-Cooled) 39M,R,S 35 / 45 boxes LEED Categies EA Credit 1 EA Credit 1 EQ Credit 6.2 EA Credit 5 EA Credit 4 EQ Credit 5 Chilled Water Fan Coil Carrier Product 30RA, 30RB, 30XA (Air-Cooled) 30H (Water-Cooled) 19XR, XRV/23XRV (Water-Cooled) 42C,D,S,V 42C,D,S,V 42C,D,S,V ComftLink/ Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 1 EA Credit 5 EA Credit 4 EQ Credit 6.2 Chilled Water Unit Ventilat Carrier Product 30RA, 30RB, 30XA (Air-Cooled) 30H (Water-Cooled) 19XR, XRV/23XRV (Water-Cooled) 40UV,UH 40UV,UH 40UV,UH ComftLink/ Carrier Comft Netwk LEED Categies EA Credit 1 EA Credit 1 EA Credit 5 EA Credit 4 Underflo Air Distribution (UFAD) Carrier Product 30RA, 30RB, 30XA (Air-Cooled) 39M,R,S 42KC, 45X, 35B 30H (Water-Cooled) 39M,R,S 42KC, 45X, 35B ComftLink/ Carrier Comft Netwk 19XR, XRV/23XRV (Water-Cooled) 39M,R,S 42KC, 45X, 35B LEED Categies EA Credit 1 EA Credit 1 EA Credit 1 EA Credit 5 EA Credit 4 EQ Credit 6.2 EQ Credit 5 Examples of specific product arrangements f highlighted systems are shown on pages NOTE: System schematics are provided as examples and f reference purposes only. Please refer to LEED criteria available from the U.S. Green Building Council and to Product Data catalogs f unit perfmance data and available options and accessies to help determine if a particular size configuration of equipment will contribute to LEED certification. CV - Constant Volume EA - Energy & Atmosphere EQ - Indo Environmental Quality NA - Not Applicable VAV - Variable Air Volume VVT - Variable Volume and Temperature 9

10 SYSTEM SCHEMATICS Packaged Large Rooftop VAV System 50Z Single-Package Rooftop Unit Up to nine steps of cooling capacity control f low energy consumption during part load operation Optional unit-mounted variable frequency drive Economizer with outdo air hoods, ultra low-leakage dampers and integrated compress operation Premium efficiency fan mots Outdo Air Delivery Moniting Outdo air quantity (cfm) control package Increased Ventilation Optional economizer damper section with CCN controls and heat recovery capability EQ Credit 5 Indo Chemical & Pollutant Source Control Filter section with MERV 13 filter Thermal Comft: Design Intertwined evapat coils f full-face active operation at part-load conditions 35/45 Series VAV Boxes EQ Credit 6.2 Controllability of Systems: Thermal Comft Wide range of sizes provides comft control in small zones Carrier Comft Netwk Control System EA Credit 5 Measurement & Verification General purpose controllers, data collection, and trend logging capability allow f moniting and analysis of energy perfmance of all building energy consuming devices Outdo Air Delivery Moniting CCN system can precisely control the amount of outside air Room-mounted CO 2 senss Increased Ventilation Demand control ventilation can significantly reduce energy needed to condition outdo air while meeting minimum ventilation requirements NOTE: These system schematics illustrate how each individual product in a system may contribute to meeting the requirements of a credit. The points available are not determined by the number of products that contribute to the credit but are limited to the total number of points allowed f a particular credit under the LEED standard. 10

11 Packaged Small Rooftop VVT System 50PG VVT 3V 33ZCDR 50PG Centurion Packaged Rooftop Unit 33ZCDR 3V VVT Control System Efficiencies up to 15.0 SEER and 12.7 EER Part load perfmance with IPLV to 13.3 EER Heat recovery option Economizer with outdo air hoods, ultra low leak dampers and integrated compress operation Optimum air path design f reduced static pressure losses High-efficiency fan mots EA Credit 4 Enhanced Refrigerant Management Chline-free Puron R-410A refrigerant Outdo Air Delivery Moniting DCV compatible Heat recovery Increased Ventilation EA Credit 5 Measurement & Verification General purpose controllers, data collection, and trend logging capability allow f moniting and analysis of energy perfmance of all building energy consuming devices Increased Ventilation Demand control ventilation can significantly reduce energy needed to condition outdo air while meeting minimum ventilation requirements EQ Credit 6.2 Controllability of Systems: Thermal Comft Economizer options EQ Credit 5 Indo Chemical & Pollutant Source Control Filter section with MERV 13 filter Thermal Comft: Design Dehumidifying capability with optional Humid-MiZer adaptive humidity control Cost-effective way of providing comft in small zones NOTE: These system schematics illustrate how each individual product in a system may contribute to meeting the requirements of a credit. The points available are not determined by the number of products that contribute to the credit but are limited to the total number of points allowed f a particular credit under the LEED standard. 11

12 Water Source Heat Pump (Tower Loop) System 50PTH Aquazone Water Source Heat Pump Part-load efficiencies up to 31.5 EER Individual zone heating and cooling control without excess energy consumption System moves energy from zone with excess heat to zones requiring heat Optional facty-installed premium fan mots Optional facty-installed hot water generat EA Credit 4 Enhanced Refrigerant Management Chline-free Puron R-410A refrigerant EQ Credit 6.2 Controllability of Systems: Thermal Comft Wide range of sizes provides comft control in small zones Thermal Comft: Design Dehumidifying capability with optional Deluxe D control board Modulating hot water reheat f part load humidity control Carrier Comft Netwk (CCN) Control System EA Credit 5 Measurement & Verification General purpose controllers, data collection, and trend logging capability allow f moniting and analysis of energy perfmance of all building energy consuming devices Outdo Air Delivery Moniting CCN system can precisely control the amount of outside air Room-mounted CO 2 senss NOTE: These system schematics illustrate how each individual product in a system may contribute to meeting the requirements of a credit. The points available are not determined by the number of products that contribute to the credit but are limited to the total number of points allowed f a particular credit under the LEED standard. 12

13 Chilled Water VAV System 23XRV Evergreen Variable Speed Screw Chiller Full load kw/ton to 0.53 and IPLV to 0.33 kw/ton, low energy consumption during part and full load operation Unit-mounted variable frequency drive EA Credit 4 Enhanced Refrigerant Management Chline-free R-134a refrigerant 39M Aero Air Handler Optional facty-mounted controls and variable frequency drives Optional high-efficiency fan mots Outdo Air Delivery Moniting Outdo air moniting station Increased Ventilation Optional economizer damper section with CCN controls and heat recovery capability EQ Credit 5 Indo Chemical & Pollutant Source Control Filter section with MERV 13 filter Thermal Comft: Design Multiple coil options allow matching design temperature and humidity requirements Facty-installed humidifiers f precise indo climate conditioning 35/45 Series VAV Boxes EQ Credit 6.2 Controllability of Systems: Thermal Comft Wide range of sizes provides comft control in small zones Carrier Comft Netwk (CCN) Control System EA Credit 5 Measurement & Verification General purpose controllers, data collection, and trend logging capability allow f moniting and analysis of energy perfmance of all building energy consuming devices Outdo Air Delivery Moniting CCN system can precisely control the amount of outside air Room-mounted CO 2 senss Increased Ventilation Demand control ventilation can significantly reduce energy needed to condition outdo air while meeting minimum ventilation requirements NOTE: These system schematics illustrate how each individual product in a system may contribute to meeting the requirements of a credit. The points available are not determined by the number of products that contribute to the credit but are limited to the total number of points allowed f a particular credit under the LEED standard. 13

14 Chilled Water Fan Coil System 30RB AquaSnap Air-Cooled Chiller IPLV to 14.2 EER f low energy consumption during part and full load operation Multiple scroll compresss and 3600-step electronic expansion valve provide excellent part load control AeroAcoustic fan system provides quiet fan operation with low condenser fan hsepower EA Credit 4 Enhanced Refrigerant Management Chline-free Puron R-410A refrigerant Carrier Comft Netwk (CCN) Control System EA Credit 5 Measurement & Verification General purpose controllers, data collection, and trend logging capability allow f moniting and analysis of energy perfmance of all building energy consuming devices 42V Room Fan Coil Valve and control packages allow matching to room load conditions without increased energy consumption EQ Credit 6.2 Controllability of Systems: Thermal Comft Wide range of sizes provides comft control in small zones NOTE: These system schematics illustrate how each individual product in a system may contribute to meeting the requirements of a credit. The points available are not determined by the number of products that contribute to the credit but are limited to the total number of points allowed f a particular credit under the LEED standard. 14

15 Underflo Air Distribution (UFAD) System 19XRV Evergreen Centrifugal Chiller IPLV to 0.35 f low energy consumption during part and full load operation Unit-mounted variable frequency drive EA Credit 4 Enhanced Refrigerant Management Chline-free R-134a refrigerant 39R Aero Air Handler Optional facty-mounted controls and variable frequency drives Optional high-efficiency fan mots Outdo Air Delivery Moniting Optional outdo air moniting station Increased Ventilation Optional economizer damper section with CCN controls and heat recovery capability EQ Credit 5 Indo Chemical & Pollutant Source Control Filter section with MERV 13 filter Thermal Comft: Design Multiple coil options allow matching design temperature and humidity requirements Facty-installed humidifiers f precise indo climate conditioning NOTE: These system schematics illustrate how each individual product in a system may contribute to meeting the requirements of a credit. The points available are not determined by the number of products that contribute to the credit but are limited to the total number of points allowed f a particular credit under the LEED standard. 45X/35B Axis Flo Terminal Units Higher supply air temperature increases economizer hours of operation Increased Ventilation Higher supply air temperature increases economizer hours of operation EQ Credit 6.2 Controllability of Systems: Thermal Comft Manually adjustable air volume regulation allows f individual control Thermal Comft: Design Colder supply air temperature to mixing box allows better humidity control Carrier Comft Netwk (CCN) Control System EA Credit 5 Measurement & Verification General purpose controllers, data collection, and trend logging capability allow f moniting and analysis of energy perfmance of all building energy consuming devices Outdo Air Delivery Moniting CCN system can precisely control the amount of outside air Room-mounted CO 2 senss Increased Ventilation Demand control ventilation can significantly reduce energy needed to condition outdo air while meeting minimum ventilation requirements 15

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