ENERGY STAR V3 HVAC Quality Installation Guidebook 2.21.2011

8/13/2019 ENERGY STAR V3 HVAC Quality Installation Guidebook 2.21.2011

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ENERGY STAR Qualified Homes

HVACSYSTEMQUALITYINSTALLATION

RATERCHECKLIST

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ENERGYSTARQUALIFIEDHOMES

DISCLAIMER

Anymentionoftradenames,commercialproducts,andorganizationsinthisdocumentdoesnotimply

endorsementbytheU.S.EnvironmentalProtectionAgency(EPA)ortheU.S.Government.EPAanditscollaboratorsmakenowarranties,whetherexpressedorimplied,norassumeanylegalliabilityorresponsibilityfor

theaccuracy,completenessorusefulnessofthecontentsofthispublication,oranyportionthereof,norrepresent

thatitsusewouldnotinfringeprivatelyownedrights.Further,EPAcannotbeheldliableforconstructiondefects

ordeficienciesresultingfromtheproperorimproperapplicationofthecontentofthisguidebook.

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HVACSYSTEMQUALITYINSTALLATIONRATERCHECKLIST

WHATAREGUIDEDETAILS?

ThisGuideforHomeEnergyRaterspresentsGuideDetailsthatserveasavisualreferenceforeachofthelineitemsintheHVACSystemQualityInstallation(QI)Rater

Checklist.Thedetailsaregreattoolsforratereducationandwillhelpratersanswercontractorandsubcontractorquestions.Together,theHVACSystemQIRaterChecklistandtheseGuideDetailsprovideacomprehensiveprocessforensuringthatbuildingprofessionalsmeetallaspectsoftheENERGYSTARV3requirements.

ThispageillustrateswhatRaterswillseethroughoutthisGuideoneveryodd(orrighthand)page.

FrontPage

Thisimageillustratesthedetailalong

witharrowstoindicatestepsnecessary

tocompleteit.

Eachofthedetailsislistedtopleft,followedbythe

actionstheRatershouldpresenttotheapplicable

tradetosuccessfullycompletethedetail.

Revision 02

Thisareapresentsapplicablefootnotes.

Alternately,footnotesthatrequireadditionalspacewillbelocatedona

thirdsheet.

Alistofapplicabletradesappearsatthe

bottomtoremindRaterswhichbuilding

professionalsneedtoapplythedetail.

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WHATAREGUIDEDETAILS?CONTINUED

ThispageillustrateswhatRaterswillseethroughoutthisGuideoneveryeven(lefthand)page.ThephotosshowthedetailedactionsthatRatersmustverifyare

completedaccordingtotheENERGYSTARV3requirements.

Imagesofbothproperandimproperinstallationare

includedalongwithacorrespondingthumbsupor

thumbsdownsymbol.

Revision 02

BackPage

Whennecessary,additionaltips,codes

orotherhelpfulinformationappearsin

thelowerhalfofthepage.

Alettercorrespondingtothefrontpageisprovided

tohelpthereaderunderstandwhichstepoftheprocessthephotospresent.

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WHATAREGUIDEDETAILS?CONTINUED

ThispageillustrateswhatRaterswillseeforcertainENERGYSTARV3requirements.Itcontainsfootnotespertinenttotherequirementthatdidnotfitonthefirst

page.

Alistoffootnotespertinenttothespecific

requirementarelistedhere.

ThirdPage

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CONTENTS

SECTION1. ReviewOfHVACSystemQualityInstallationContractorChecklist

SECTION2. DuctQualityInstallation

SECTION3. DuctInsulation

SECTION4. DuctLeakage

SECTION5. WholeBuildingDeliveredVentilation

SECTION6. Controls

SECTION7. VentilationAirInlets&VentilationSource

SECTION8. LocalMechanicalExhaust

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SECTION9. Ventilation&exhaustfanratings(exemptionsforhvacandremote

mountedfans)

SECTION10. Combustionappliances

SECTION11. Filtration

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SECTION1. REVIEWOFHVACSYSTEMQUALITYINSTALLATION

CONTRACTORCHECKLIST

1.1. HVACSystemQualityInstallationContractorchecklistcompletedinitsentirety

andcollectedforrecords,alongwithdocumentationonventilationsystem

(1.3),fullloadcalculations(2.18),AHRIcertificate(3.15),andbalancingreport

(10.2)

1.2. Reviewthefollowingparametersrelatedtosystemcoolingdesign,selection,

andinstallationfromtheHVACContractorchecklist(Contractorchecklistitem#

indicatedinparentheses):

1.2.1. Outdoordesigntemperatures(2.4)areequaltothe1%and99%ACCAManualJdesign

temperaturesforcontractor-designateddesignlocation

1.2.2. Homeorientation(2.5)matchesorientationofratedhome

1.2.3. NumberofOccupants(2.6)equalsnumberofoccupantsinratedhome

1.2.4. Conditionedfloorarea(2.7)iswithin10%ofconditionedfloorareaofratedhome

1.2.5. Windowarea(2.8)iswithin10%ofcalculatedwindowareaofratedhome

1.2.6. PredominantwindowSHGC(2.9)iswithin0.1ofpredominantvalueinratedhome

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1.2.7. Listedlatentcoolingcapacity(3.10)exceedsdesignlatentheatgain(2.12)

1.2.8. Listedsensiblecoolingcapacity(3.11)exceedsdesignsensibleheatgain(2.13)1.2.9. Listedtotalcoolingcapacity(3.12)is95-115%(or95-125%forHeatPumpsinClimateZones

4-8)ofdesigntotalheatgain(2.14),ornextnominalsize

1.2.10. HVACmanufacturerandmodelnumbersoninstalledequipment,contractorchecklist(3.1,3.3,

5.1),andAHRIcertificateorOEMcatalogdataallmatch

1.2.11. Usingreportedliquidline(6.3)orsuctionline(6.5)pressure,correspondingtemp.(as

determinedusingpressure/temperaturechartforrefrigeranttype)matchesreportedcondenser(7.1)orevaporator(7.5)saturationtemperature(+/-3degrees)

1.2.12. Calculatedsubcooling(7.1minus6.4)orsuperheat(6.6minus7.5)valueequalsreportedtarget

subcooling(7.3)orsuperheat(7.7)temperature

1.3. Rater-verifiedsupply&returnductstaticpressure


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1 REVIEWOFHVACSYSTEMQUALITYINSTALLATIONCONTRACTORCHECKLIST

1 CHECKLISTCOMPLETED

DETAIL1.12

HVACSystemQualityInstallationContractorchecklistcompletedinitsentiretyandcollectedforrecords,

alongwithdocumentationonventilationsystem(1.3),

fullloadcalculations(2.18),AHRIcertificate(3.15),andbalancingreport(10.2)

A. ChecktheContractorchecklisttoensureitiscompleted.Itisnot

requiredtoassesstheaccuracyoftheloadcalculationsorfield

verifications.

B. ItistheContractorsexclusiveresponsibilitytoensurethe

systemdesignandinstallationcomplywiththeContractorchecklistspecifications.

FOOTNOTES

2. TheRaterisonlyresponsibleforensuringthattheContractor

hascompletedtheContractorchecklistinitsentiretyandverifying

thediscreteobjectiveparametersreferencedinSection1ofthis

checklist,notforassessingtheaccuracyoftheloadcalculationsorfield

verificationsincludedortoverifytheaccuracyofeveryinputonthe

Contractorchecklist.

REQUIREDDOCUMENTS

HVACSystemQualityInstallationContractorChecklist

ThisdocumentisnecessarytoverifythattheHVACcontractorhas

documentedallpertinentinformationrelatedtoENERGYSTARrequirements

forthehouse'sHVACsystem.

VentilationSystemDocumentation

Thesystemshallhaveatleastonesupplyorexhaustfanwithassociated

ductsandcontrols.Localexhaustfansareallowedtobepartofanexhaust

ventilationsystem.Outdoorairductsconnectedtothereturnsideof

anairhandlerareallowedtobepartofasupplyventilationsystemifmanufacturersrequirementsforreturnairtemperaturearemet.

Theventilationsystemdocumentationwillprovideinformationonwhich

typeofventilationisinstalled.Inaddition,itindicatestheventilationrate

necessaryforRater-verificationpurposes.

FullLoadCalculations

HVACContractorsshallperformaloadcalculationforthespecifichouse

planandorientationofthehometobequalifiedor,forplanswithmultiple

optionsorthatmaybebuiltinmorethanoneorientation,foreveryoption

andorientation.

AHRICertificate

Allevaporatorsandcondensingunitsshallbeproperlymatchedas

demonstratedbyanattachedAHRIcertificate.IfanAHRIcertificateisnot

available,acopyofOEM-providedcatalogdataindicatingacceptable

combinationselectionandperformancedatashallbeattached.

BalancingReport

Thebalancingreportwillprovidethequantityofsupplyandreturn

terminalsineachroom.

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1 CHECKLISTCOMPLETED

ENERGY STAR Qualified Homes, Version 3 (Rev. 02)

HVAC System Quality Installation Contractor Checklist

1

Version 3 (Rev. 02) - Effective 04/01/2011 Revised 01/10/2011 8

5. Selected Furnace, If Furnace to be InstalledCont./Tech.

Verified

Rater

Verified

5.1 Furnace Manufacturer & Model:

5.2 Furnace Serial #:

5.3 Listed Efficiency: AFUE

5.4 Listed Output Heating Capacity: BTUh

5.5 Listed Output Heat. Cap. (Value 5.4) is 100-140% of Design Heat Loss (Value 2.16) or next nom. Size18,19

6. Refrigerant Tests - Run system for 15 minutes before testing

6.1 Outdoor ambient temp. at condensor: F DB

6.2 Return-side air temp. inside duct near evaporator, during cooling mode: F WB

6.3 Liquid line pressure: psig

6.4 Liquid line temperature: F DB

6.5 Suction line pressure: psig

6.6 Suction line temperature: F DB

7. Refrigerant Calculations

For System with Thermal Expansion Valve (TXV):

7.1 Condenser saturation temp.: F DB (Using Value 6.3)

7.2 Subcooling value: F DB (Value 7.1 - Value 6.4)

7.3 OEM subcooling goal: F DB

7.4 Subcooling deviation: F DB (Value 7.2 - Value 7.3)

For System with Fixed Orifice:

7.5 Evaporator saturation temp.: F DB (Using Value 6.5)

7.6 Superheat value: F DB (Value 6.6 - Value 7.5)

7.7 OEM superheat goal: F DB (Using superheat tables and Values 6.1 & 6.2)

7.8 Superheat deviation: F DB (Value 7.6 - Value 7.7)

7.9 Value 7.4 is 3F or Value 7.8 is 5F

7.10

8. Electrical Measurements

8.1 Evaporator/air handler fan: amps volts watts

8.2 Condensor fan: amps volts watts

8.3 Compressor: amps volts watts

8.4 Electrical measurements within OEM specified tolerance of nameplate value

9. Air Flow Tests

9.1 Air volume at evaporator: CFM

9.2 Test performed in which mode? Heating Cooling 9.3 Return duct static pressure: IWC Test Location

21:

9.4 Supply duct static pressure: IWC Test Location21

:

9.5 Test hole locations are well-marked and accessible21

9.6 Measurement method used: Anemometer Pressure matching22

Flow grid Fan curve Other:

9.7

10. Air Balance

10.1

10.2

11. System Controls

11.1 Operating and safety controls meet OEM requirements

12. Drain pan

12.1 Corrosion-resistant drain pan, properly sloped to drainage system, included24

Technician Name25

: Equipment Installation Date:

Technician Signature25

: Company:

Designer Name

25

:System Design Date:

Designer Signature25

: Company:

N/A

Note: If cold weather makes it impossible to verify proper refrigerant charge, system must include a TXV20

Balancing report indicating quantity of supply and return terminals per room attached

Individual room airflows within the greater of 20% or 25 CFM of the design / application requirements

for the supply and return ducts23

Airflow volume at evaporator (Value 9.1), at fan design speed and full operating load, +/- 15% of the

airflow required per system design (Value 2.16) or within range recommended by OEM

An OEM test procedure has been used in place of sub-cooling or super-heat process and documentation has

been attached that defines this procedure



1

Version 3 (Rev. 02) - Effective 04/01/2011 Revised 01/10/2011 7

Home Address: City: State:

System Description2: Cooling system for temporary occupant loads?

3Yes No

1. Whole-Building Mechanical Ventilation Design4

Cont./Tech.

Verified5

Rater

Verified

1.1.

Ventilation system designed to meet ASHRAE 62.2-2010 requirements6.

1.2

1.3

1.4

1.5

2.1 Heat Loss / Gain Method: Manual J v8 ASHRAE 2005 Other:

2.2 Duct Design Method: Manual D Other:

2.3 Equipment Selection Method: Manual S OEM Rec. Other:

2.4 Outdoor Design Temperatures:8

Location: 1%: F 99%: F

2.5 Orientation of Rated Home (e.,g., North, South):

2.6 Number of Occupants Served by System:9

2.7 Conditioned Floor Area in Rated Home: Sq. Ft.

2.8 Window Area in Rated Home: Sq. Ft.

2.9 Predominant Window SHGC in Rated Home:10

SHGC

2.10 Infiltration Rate in Rated Home:11

Summer: Winter:

2.11 Mechanical Ventilation Rate in Rated Home: CFM

2.12 Design Latent Heat Gain: BTUh

2.13 Design Sensible Heat Gain: BTUh

2.14 Design Total Heat Gain: BTUh

2.15 Design Total Heat Loss: BTUh

2.16 Design Airflow:12

CFM

2.17 Design Duct Static Pressure:13

Inches Water Column (IWC)

2.18 Full Load Calculations Report Attached

3. Selected Cooling Equipment, If Cooling Equipment to be Installed

3.1 Condenser Manufacturer & Model:

3.2 Condenser Serial #:

3.3 Evaporator / Fan Coil Manufacturer & Model:

3.4 Evaporator / Fan Coil Serial #:

3.5 AHRI Reference #:1

3.6 Listed Efficiency: EER SEER

3.7 Metering Device Type: TXV Fixed orifice Other:

3.8 Refrigerant Type: R-410a Other:

3.9 Fan Speed Type:15

Fixed Variable (ECM/ICM) Other:

3.10 Listed Sys. Latent Capacity at Design Cond.16

: BTUh

3.11 Listed Sys. Sensible Capacity at Design Cond.16

: BTUh

3.12 Listed Sys. Total Capacity at Design Cond.16

: BTUh

3.13

3.14 Listed Total Cap. (Value 3.12) is 95-115% of Design Total Heat Gain (Value 2.14) or next nom. size

Or for Heat Pumps in Climate Zones 4-8, 95-125% or next nominal size17,18

3.15 AHRI Certificate Attached14

4. Selected Heat Pump Equipment, If Heatpump to be Installed

4.1 AHRI Listed Efficiency: HSPF

4.2 Performance at 17F: Capacity: BTUh Efficiency: COP 4.3 Performance at 47F: Capacity: BTUh Efficiency: COP

N/A

-

-

-

-

-

-

-

-

-

-

-

Documentation is attached with ventilation system type, location, design rate, and frequency and duration of

each ventilation cycle.

Ventilation system does not utilize an intake duct to the return side of the HVAC system unless the system is

designed to operate intermittently and automatically based on a timer and to restrict outdoor air intake when

not in use (e.g., motorized damper).

If present, continuously-operating vent. & exhaust fans designed to operate during all occupiable hrs.

If present, intermittently-operating whole-house ventilation system designed to automatically operate at least

once per day and at least 10% of every 24 hours.

If Listed Sys. Latent Capacity (Value 3.10) < Design Latent Heat Gain (Value 2.12),

ENERGY STAR qualified dehumidifier installed?

2. Heating & Cooling System Design4,7

- Parameters used in the design calculations shall reflect home to be built, specifically, outdoor design temperatures,

home orientation, number of b edrooms, conditioned floor area, windowarea, predominant window performance and insulation levels, infiltration rate, mechanical

ventilation rate, presence of MERV6 or better filter, and indoor temperature setpoints = 70 F for heating; 75F for cooling

-

-

-

-

-

-

-

-

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2 PARAMETERSRELATEDTOSYSTEMCOOLINGMET

DETAIL1.2Reviewthefollowingparametersrelatedtosystem

coolingdesign,selection,andinstallationfromtheHVACContractorchecklist(Contractorchecklistitem#

indicatedinparenthesis)(DETAILS1.2.11.2.10):

1.2.1. Outdoordesigntemperatures(2.4)areequaltothe1%and

99%ACCAManualJdesigntemperaturesforcontractor-

designatedlocationoralternatetempssupportedwith

documentation

1.2.2. Homeorientation(2.5)matchesorientationofratedhome

1.2.3. NumberofOccupants(2.6)equalsnumberofoccupantsin

ratedhome4

1.2.4. Conditionedfloorarea(2.7)iswithin10%ofconditioned

floorareaofratedhome

1.2.5. Windowarea(2.8)iswithin10%ofcalculatedwindowareaof

ratedhome

1.2.6. PredominantwindowSHGC(2.9)iswithin0.1ofpredominant

valueinratedhome5

1.2.7. Listedlatentcoolingcapacity(3.10)exceedsdesignlatentheat

gain(2.12)

1.2.8. Listedsensiblecoolingcapacity(3.11)exceedsdesignsensible

heatgain(2.13)

1.2.9. Listedtotalcoolingcapacity(3.12)is95-115%(or95-125%for

HeatPumpsinClimateZones4-8)ofdesigntotalheatgain

(2.14),ornextnominalsize6

1.2.10. HVACmanufacturerandmodelnumbersoninstalled

equipment,contractorchecklist(3.1,3.3,5.1),andAHRI

certificateorOEMcatalogdataallmatch7

Footnoteslocatedonbackofthispage.



1Home Address: City: State:

1. Whole-Building Mechanical Ventilation Design2Cont.

Verified

Rater

VerifiedN/A

1.1. Ventilation system designed to meet ASHRAE 62.2-2007 requirements 3.

1.2

1.3 Documentation is attached with ventilation system type, location and design rate.

1.4

1.5

Ventilation system does not utili ze an intake duct to the return side of the HVAC system unless the

system is designed to operate intermittently and automatically based on a timer and to restrict

outdoor air intake when not in use (e.g., motorized damper).

If present, continuously-operating vent. & exhaust fans designed to operate during all occupiable hrs.

If present, intermittently-operating whole-house ventilation system designed to automatically operate

at least once per day and at l east 10% of every 24 hours.

-

-

-

2. Heating & Cooling System Design2,4- Parameters used in the design calculations shall reflect home to be built, specifically, outdoor design

temperatures, home orientation, number of b edrooms, conditioned floor area, window area, predominant window performance, and insulation l evels,

infiltration rate, mechanical ventilation rate, presence of MERV6 or better filter, and indoor temperature setpoints = 70F for heating; 75F for cooling

2.1 Heat Loss / Gain Method: Manual J v8 ASHRAE 2005 Other:

2.2 Duct Design Method: Manual D Other:

2.3 Equipment Selection Method: Manual S OEM Rec. Other:

2.4 Outdoor Design Temperatures Used:5 1%: F 99%: F

2.5 Orientation of Rated Home (e.,g., North, South):

2.6 Number of Bedrooms in Rated Home:

2.7 Conditioned Floor Area in Rated Home: Sq. Ft.

2.8 Window Area in Rated Home: Sq. Ft.

2.9 Predominant Window SHGC in Rated Home:6 SHGC

2.10 Infiltration Rate in Rated Home:7 Summer: Winter:

2.11 Mechanical Ventilation Rate in Rated Home: CFM

2.12 Design Latent Heat Gain: BTUh

2.13 Design Sensible Heat Gain: BTUh

2.14 Design Total Heat Gain: BTUh

2.15 Design Total Heat Loss: BTUh

2.16 Design Airflow: CFM

2.17 Design Duct Static Pressure:8 Inches Water Column (IWC)

2.18 Copy of Load Calculations Attached

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

3. Selected Cooling Equipment, If Cooling Equipment to be Installed

3.1 Condenser Manufacturer & Model:

3.2 Condenser Serial #:

3.3 Evaporator / Fan Coil Manufacturer & Model:

3.4 Evaporator / Fan Coil Serial #:

3.5 AHRI Reference #:9

3.6 Listed Efficiency: EER SEER

3.7 Metering Device Type: TXV Fixed orifice Other:

3.8 Refrigerant Type: R-410a Other:

3.9 Fan Speed Type:10 Fixed Variable (ECM/ICM) Other:

3.10 Listed Sys. Latent Capacity at Design Cond.11: BTUh

3.11 Listed Sys. Sensible Capacity at Design Cond.11: BTUh

3.12 Listed Sys. Total Capacity at Design Cond.11: BTUh

3.13

3.14 Listed Total Cap. (Value 3.12) is 95-115% of Design Total Heat Gain (Value 2.14) or next nom. s ize

Or for Heat Pumps in Climate Zones 4-8, 95-125% or next nominal s ize

3.15 AHRI Certificate Attached 9

If Listed Sys. Latent Capacity (Value 3.10) < Desi gn Latent Heat Gain (Value 2.12),

ENERGY STAR qualified dehumidifier ins talled?

4. Selected Heat Pump Equipment, If Heatpump to be Installed

4.1 AHRI Listed Efficiency: HSPF

4.2 Performance at 17F: Capacity: BTUh Efficiency: COP

4.3 Performance at 47F: Capacity: BTUh Efficiency: COP

Version 3 (Rev. 01) - Effective 1/1/2011 Revised 10/18/2010

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2 PARAMETERSRELATEDTOSELECTEDCOOLINGEQUIPMENTMET

FOOTNOTES

4. ThenumberofoccupantsamongallHVACsystemsinthehomeshallbeequaltothe

numberofRESNET-definedbedroomsplusone.Occupantslistedforsystemsforwhich

theheaderofthecontractorchecklistindicatesthatitisdesignedtohandletemporary

occupantloads,asdefinedinfootnote3oftheHVACSystemQualityInstallationContractor

Checklist,shallbepermittedtoexceedthislimit.

5. PredominantisdefinedastheSHGCvalueusedinthegreatestamountofwindowareainthehome.

6. Forcoolingsystems,thenextlargestnominalpieceofequipmentmaybeusedthatis

availabletosatisfythelatentandsensiblerequirements.Single-speedsystemsgenerally

haveOEMnominalsizeincrementsofton.Multi-speedormulti-stageequipmentmay

haveOEMnominalsizeincrementsofoneton.Therefore,theuseoftheseadvancedsystem

typescanprovideextraflexibilitytomeettheequipmentsizingrequirements.

7. IncaseswherethecondenserunitisinstalledafterthetimeofinspectionbytheRater,

theHVACmanufacturerandmodelnumbersoninstalledequipmentcanbedocumented

throughtheuseofphotographsprovidedbytheHVACContractorafterinstallationis

complete.

8. IfcontractorhasindicatedthatanOEMtestprocedurehasbeenusedinplaceofasub-coolingorsuper-heatprocessanddocumentationhasbeenattachedthatdefinesthis

procedure,thentheboxforn/ashallbecheckedforthisitem.

5. Selected Furnace, If Furnace to be InstalledCont.

Verif ied

Rater

Verif ied

5.1 Furnace Manufacturer & Model:

5.2 Furnace Serial #:

5.3 Listed Efficiency: AFUE

5.4 Listed Output Heating Capacity: BTUh

5.5 Listed Output Heat. Cap. (Value 5.4) is 100-140% of Design Heat Loss (Value 2.15) or next nom. size

6. Refrigerant Tests - Run system for 15 minutes before testing

6.1 Outdoor ambient temp. at condenso r: F DB

6.2 Return-side air temp. inside duct near evaporator, during cooling mode: F WB

6.3 Liquid line pressure: psig

6.4 Liquid line temperature: F DB

6.5 Suction line pressure: psig

6.6 Suction line temperature: F DB

7. Refrigerant Calculations

For System with Thermal Expansion Valve (TXV):

7.1 Condense r saturation temp.: F DB (Using Value 6.3)

7.2 Subcooling value: F DB (Value 7.1 - Value 6.4)

7.3 OEM subcooli ng goal: F DB

7.4 Subcooling deviation: F DB (Value 7.2 - Value 7.3)

For System with Fixed Orifice:

7.5 Evaporator saturation temp.: F DB (Using Value 6.5)

7.6 Superheat value: F DB (Value 6.6 - Value 7.5)

7.7 OEM superheat goal: F DB (Using superheat tables and Values 6.1 & 6.2)

7.8 Superheat deviation: F DB (Value 7.6 - Value 7.7)

7.9 Value 7.4 is 3F or Value 7.8 is 5F

8. Electrical Measurements

8.1 Evaporator/air handler fan: amps volts watts

8.2 Condens or fan: amps volts watts

8.3 Compressor: amps volts watts

8.4 Electrical measureme nts within OEM specified tolerance of namepla te value

9. Air Flow Tests

9.1 Air volume at evaporator: CFM

9.2 Test performed in which mode? Heating Cooling 9.3 Return static press ure: IWC Location

13:

9.4 Supply static press ure: IWC Location13:

9.5 Measurement method used: Anemometer Pressure matching14

Flow grid Fan curve Other:

9.6

10. Air Balance

10.1

10.2

11. System Controls

11.1 Operating and safety controls meet OEM requiremen ts

12. Drain pan

12.1 Corrosion- resistan t drain pan, properly sloped to drainage system, included15

Technician Name: Equipment Installation Date:

Technician Signature: Company:

Designer Name16

: System Design Date:Designer Signature16: Company:

Balancing report indicating quantity of supply and return terminals per room attached

Individual room airflows within the greater of 20% or 25 CFM of the design / application

requirements for the supply and return ducts

Airflow volume at evaporator (Value 9.1), at fan design spe ed and full operating loa d, +/- 15% of

the airflow required per system design (Value 2.16) or within range recommended by OEM

Note: If cold w eather makes it impossible to verify proper refrigerant charge, system must include a TXV 12

N/A

DETAIL1.2Continued

Reviewthefollowingparametersrelatedtosystemcoolingdesign,selection,andinstallationfromthe

HVACContractorchecklist(Contractorchecklistitem#

indicatedinparenthesis)(DETAILS1.2.111.2.12):

1.2.11. Usingreportedliquidline(6.3)orsuctionline(6.5)pressure,

correspondingtemp.(asdeterminedusingpressure/

temperaturechartforrefrigeranttype)matchesreported

condenser(7.1)orevaporator(7.5)saturationtemperature

(+/-3degrees)8

1.2.12. Calculatedsubcooling(7.1minus6.4)orsuperheat(6.6minus7.5)valueequalsreportedtargetsubcooling(7.3)or

superheat(7.7)temperature8



1

Version 3 (Rev. 01) - Effective 1/1/2011 Revised 10/18/2010

Revision 02 16

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3 SUPPLY&RETURNDUCTSTATICPRESSURE


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SECTION2. DUCTQUALITYINSTALLATION

2.1. Connectionsandroutingofductworkcompletedwithoutkinksorsharpbends

2.2. Noexcessivecoiledorloopedflexibleductwork

2.3. Flexibleductsinunconditionedspacenotinstalledincavitiessmallerthan

outerductdiameter;inconditionedspacenotinstalledincavitiessmallerthan

innerductdiameter

2.4. Flexibleductssupportedatintervalsasrecommendedbymanufacturerbutat

adistance5ft.

2.5. Buildingcavitiesnotusedassupplyorreturnductsunlesstheymeetitems3.2,

3.3,4.1,and4.2ofthischecklist

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2.6. HVACducts,cavitiesusedasducts,andcombustioninletsandoutletsmaypass

perpendicularlythroughexteriorwallsbutshallnotberunwithinexteriorwallsunless

atleastR-6continuousinsulationisprovidedonexteriorsideofthecavity,alongwith

aninteriorandexteriorairbarrierwhererequiredbytheThermalEnclosureSystem

Checklist

2.7. Quantity&locationofsupplyandreturnductterminalsmatchcontractorbalancing

report

2.8. Bedroomspressure-balancedusinganycombinationoftransfergrills,jumpducts,

dedicatedreturnducts,and/orundercutdoorstoeither:a)provide1sq.in.offreearea

openingper1CFMofsupplyair,asreportedonthecontractor-providedbalancing

report;orb)achieveaRater-measuredpressuredifferential3Pa(0.012in.w.c.)with

respecttothemainbodyofthehousewhenbedroomdoorsareclosedandtheair

handlerisoperating

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2 DUCTQUALITYINSTALLATION

1 CONNECTIONSANDROUTINGOFDUCTWORKCOMPLETEDWITHOUTKINKSORBENDS

DETAIL2.19

Connectionsandroutingofductworkcompletedwithoutkinksorsharpbends

A. Installductswithoutkinks.Kinksarecausedwhenductsarebent

acrosssharpcornerssuchasframingmembers.

B. Installductswithoutsharpbends.Sharpbendsoccurwhenthe

radiusoftheductcenterlineislessthanoneductdiameter.

C. Coordinatewiththeframer,plumber,andelectricianforeffectiveductinstallation.

FOOTNOTES

9. Kinksaretobeavoidedandarecausedwhenductsarebentacross

sharpcornerssuchasframingmembers.Sharpbendsaretobe

avoidedandoccurwhentheradiusoftheturnintheductislessthan

oneductdiameter.

TRADES

HVAC

FRAMER

PLUMBER

ELECTRICIAN

A

B

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1 CONNECTIONSANDROUTINGOFDUCTWORKCOMPLETEDWITHOUTKINKSORBENDS

A.

LD LD

LD

Ductiskinkedincavity. Ductisrunstraightandsupported

properly.

Excessivelengthofduct Fanhousingwasorientedinthe

installedcausingsharp correctdirectiontoallowproperexhaustductinstallation.bends.

C.

B. Ductscrammedintocavity, Ductsarerunstraightandkinkedandsharplybent. supportedproperly.

DUCTAIRFLOWBASICS

Eachturn,kink,orcompressionofductworkreducesairflow.

Iftherecommendedamountofairflowisnotdeliveredtotheroom,it

couldleadtohomeownercomfortcomplaints.

DUCTAIRFLOWTIPS

TobestunderstandtheintentoftheHVACcontractor,itishelpfultolook

attheductsdesignedincompliancewithManualD.

Usebalancingdampersinflexductstocontrolflow.Formetalducts,

butterflydampersmaybeusedtocontrolairflow.

Topreventkinksattheductandbootconnection,EPArecommends

usingmetalductelbowinsteadofflexduct.

Webbedtrussesbetweenfloorsallowforductstofreelypassthrough

thefloorsystemwithoutcompromisingthestructure.

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2 NOEXCESSIVECOILEDORLOOPEDFLEXIBLEDUCTWORK

DETAIL2.210

Noexcessivecoiledorloopedflexibleductwork

A. Installductswithoutexcessivecoiledorloopedflexibleduct

workunlessneededforacousticalcontrol.

B. Installbalancingdamperstolimitflowtodiffusers.

C. Coordinatewiththeframer,plumber,andelectricianforeffectiveductinstallation.

FOOTNOTES

10. Ductsshallnotincludecoiledorloopedductworkexcepttothe

extentneededforacousticalcontrol.Balancingdampersorproper

ductsizingshallbeusedinsteadofloopstolimitflowtodiffusers.

Whenbalancingdampersareused,theyshallbelocatedatthe

trunktolimitnoiseunlessthetrunkwillnotbeaccessiblewhenthe

balancingprocessisconducted.Insuchcases,OpposableBlade

Dampers(OBD)ordampersthatarelocatedintheductbootare

permitted.

A

B

TRADES

HVAC

FRAMER

PLUMBER

ELECTRICIAN

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2 NOEXCESSIVECOILEDORLOOPEDFLEXIBLEDUCTWORK

LD LD

installed.A. Excessivelengthofduct Ductisrunstraightandsupported

properly.

LD

Excessivelengthofduct FanhousingwasorientedintheC.installedcausingsharp correctdirectiontoallowproperbends. exhaustductinstallation.

Nomechanicaldamper Mechanicaldamperinstalled.B.installed.

DUCTAIRFLOWBASICS


Iftherecommendedamountofairflowisnotdeliveredtotheroom,it

couldleadtohomeownercomfortcomplaints.

DUCTAIRFLOWTIPS

TobestunderstandtheintentoftheHVACcontractor,itishelpfultolook

attheductsdesignedincompliancewithManualD.

Usebalancingdampersinflexductstocontrolflow.Formetalducts,

butterflydampersmaybeusedtocontrolairflow.

Topreventkinksattheductandbootconnection,EPArecommends

usingmetalductelbowinsteadofflexduct.

Webbedtrussesbetweenfloorsallowforductstofreelypassthrough

thefloorsystemwithoutcompromisingthestructure.

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3 FLEXIBLEDUCTSNOTINSTALLEDINCAVITIESSMALLERTHANREQUIREDDIMENSION

DETAIL2.3Flexibleductsinunconditionedspaceshallnotbe

installedincavitiessmallerthanouterductdiameter;Inconditionedspacenotinstalledincavitiessmaller

thaninnerductdiameter

A. Installductstopreventcompressionofductorductinsulation.

DUCTAIRFLOWBASICS


Iftherecommendedamountofairflowisnotdeliveredtotheroom,itcouldleadtohomeownercomfortcomplaints.

DUCTAIRFLOWTIPS

TobestunderstandtheintentoftheHVACcontractor,itishelpfultolookattheductsdesignedincompliancewithManualD.

Usebalancingdampersinflexductstocontrolflow.Formetal

ducts,butterflydampersmaybeusedtocontrolairflow.

Topreventkinksattheductandbootconnection,EPA

recommendsusingmetalductelbowinsteadofflexduct.

Webbedtrussesbetweenfloorsallowforductstofreelypass

throughthefloorsystemwithoutcompromisingthestructure.

TRADES

HVAC

A

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3 FLEXIBLEDUCTSNOTINSTALLEDINCAVITIESSMALLERTHANREQUIREDDIMENSION

Ductiscompressed. Framingallowedductworkto A. Recessedcanlightis DuctsproperlyinstalledwithoutA.beproperlyinstalledwithout compressingductwork. compressionandappropriately

compression. supported.

A. Ductiscompressed. Ductsproperlyinstalledwithoutcompressionandappropriatelysupported.

LD

LD LD

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4 FLEXIBLEDUCTSSUPPORTEDATINTERVALSASRECOMMENDEDBYMANUFACTURER

DETAIL2.4

Flexibleductssupportedatintervalsasrecommendedbymanufacturerbutatadistance5ft.

A. Installsupportsataminimumofevery5ft.topreventsagging.

B. Installsupportsatleast1in.wide.

C. Installsupportswithoutcompressingtheductandtheduct

insulation.

DUCTAIRFLOWBASICS


Iftherecommendedamountofairflowisnotdeliveredtotheroom,itcouldleadtohomeownercomfortcomplaints.

DUCTAIRFLOWTIPS

TobestunderstandtheintentoftheHVACcontractor,itishelpfultolookattheductsdesignedincompliancewithManualD.

Usebalancingdampersinflexductstocontrolflow.Formetal

ducts,butterflydampersmaybeusedtocontrolairflow.

Topreventkinksattheductandbootconnection,EPA

recommendsusingmetalductelbowinsteadofflexduct.

Webbedtrussesbetweenfloorsallowforductstofreelypass

throughthefloorsystemwithoutcompromisingthestructure.

TRADES

HVAC

A-C

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5 BUILDINGCAVITIESNOTUSEDASSUPPLYORRETURNDUCTS

DETAIL2.5

Buildingcavitiesnotusedassupplyorreturnducts

unlesstheymeetitems3.2,3.3,4.1,and4.2ofthischecklist

A. Avoidusingbuildingcavitiesasductsduetothedifficultyofproperlyairsealingandinsulatingthem.

If building cavities are used:

B. Installinsulationwithoutmisalignments,compressions,gaps,or

voidsinallcavitiesusedforducts.

C. Ifnon-rigidinsulationisused,installarigidairbarrierorother

supportingmaterialtoholdinsulationinplace.

D. Sealallseams,gaps,andholesoftheairbarrierwithcaulkorfoam.

DUCTINSTALLATIONTIPS

EPArequiresthatallductsinexteriorwallsmustbewithintheairbarrieraswellasthethermalboundary.

ItisimportantfortheframerandHVACcontractortocoordinateonthelocationofareturnduct.Thisallowsforproperspacingofthefloororroofstructureforinstallationofthereturn.

Ifinstallingsupplyductswithinthewalls,verifythattheductiscapableof outputtingthenecessaryairflow.Typically,only

double-wallassemblieswillhaveenoughdepthtoallowforproper

insulationandductsize.

Ifinstallingreturnductsusingthefloororceilingstructure,EPA

recommendstosealboththeexteriorandtheinteriorofallreturn

boxestopreventairleakage.

TRADES

HVAC

B

C&D

SEAL

S E

A L

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6 HVACINEXTERIORWALLSMUSTHAVECONTINUOUSR6INSULATION

DETAIL2.6

HVACducts,cavitiesusedasducts,andcombustion

inletsandoutletsmaypassperpendicularlythroughexteriorwallsbutshallnotberunwithinexteriorwalls

unlessatleastR6continuousinsulationisprovided

onexteriorsideofthecavity,alongwithaninterior

andexteriorairbarrierwhererequiredbytheThermalEnclosureChecklist

A. Installinsulationwithoutmisalignments,compressions,gaps,or

voidsinallbuildingcavitieswithductsorcavitiesusedasducts.

B. Ifnon-rigidinsulationisused,installarigidairbarrierorothersupportingmaterialtoholdinsulationinplace.

C. Sealallseams,gaps,andholesoftheairbarrierwithcaulkorfoam.

DUCTINSTALLATIONTIPS

EPArequiresthatallductsinexteriorwallsmustbewithintheairbarrieraswellasthethermalboundary.

ItisimportantfortheframerandHVACcontractortocoordinateon

thelocationofareturnduct.Thisallowsforproperspacingofthefloororroofstructureforinstallationofthereturn.

Ifinstallingsupplyductswithinthewalls,verifythattheduct

iscapableof outputtingthenecessaryairflow.Typically,only

double-wallassemblieswillhaveenoughdepthtoallowforproper

insulationandductsize.

Ifinstallingreturnductsusingthefloororceilingstructure,EPA

recommendstosealboththeexteriorandtheinteriorofallreturn

boxestopreventairleakage.TRADES

HVAC

A

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6 HVACINEXTERIORWALLSMUSTHAVECONTINUOUSR6INSULATION

LD

GOODPICOFPROPERLY

INSTALLEDINSULATIONIN

BUILDINGCAVITYUSEDAS

ADUCT

Inadequateamount

ofinsulationinstalled

withcompression,

misalignment,andvoids.

GOODPICOFPROPERLYSEALEDBUILDINGCAVITY

USEDASADUCT

A.

LD

LD

BADPICOFINSULATION

INSTALLEDWITHOUTAIR

BARRIERINBUILDING

CAVITYUSEDASADUCT

B.

GOODPICOFRIGIDAIR

BARRIERINSTALLEDIN

BUILDINGCAVITYUSEDAS

ADUCT

Revision 02

Noinsulationinstalledin

cavityandnotairsealed.

C.

32

C S S Q S O R R C C S


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7 DUCTTERMINALSMATCHBALANCINGREPORT

DETAIL2.7Quantityandlocationofsupplyandreturnduct

terminalsmatchcontractorprovidedbalancingreport

A. Verifyductsarelocatedwherespecifiedonthebalancingreport.

B. Verifythenumberofductsmatchthebalancingreport.

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HVAC SYSTEM QUALITY INSTALLATION RATER CHECKLIST


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8 BEDROOMSPRESSUREBALANCED

DETAIL2.8A11

Bedroomspressurebalancedusinganycombinationoftransfergrills,jumpducts,dedicatedreturnducts,and/orundercutdoorstoprovide

1sq.in.offreeareaopeningper1CFMofsupplyair,asreportedonthecontractorprovidedbalancingreport:

A. RefertothebalancingreportprovidedbytheHVACcontractorforthe

bedroomairflowstosizethetransfergrillsand/orjumperducts.

B. Installandsealproperlysizedtransfergrillsduringframing.Bothopenings

ofthetransfergrillmusthavetherequiredfreearea.

C. Iftransfergrillsarenotused,installandsealjumperductsduringframing.

Bothopeningsandductsmusthavetherequiredfreearea.

D. EPArecommendsthatdoorsareundercuttoapproximately3/4in.abovethefinishedfloor.

FootnotelocatedonpageafterDetail2.8B.

Freearea

opening

required

Height

requiredfor

10in.wide

transfer

grill*

Height

requiredfor

12in.wide

transfer

grill*

Height

requiredfor

14in.wide

transfer

grill*

Jumper

duct

diameter

in2 in in in in

R

ooms

upplyairflow

(CFM)

50 50 6.7 5.6 4.8 8

75 75 10 8.3 7.1 10

100 100 13.3 11.1 9.5 12

125 125 - 13.8 11.9 14

150 150 - - 14.3 14

175 175 - - - 16

200 200 - - - 16

* Assumesthenetfreeareaofthetransfergrillas.75in.

B

C

TRADES

FRAMER

HVAC

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Ducttobootconnectionofjump

ductisproperlysealedwithmastic.

D. Doorisnotundercutthereforenotcontributing

Doorhasbeenundercuttoallow

forspecifiedamountofairflowtopressurebalancing. thereforecontributingtopressure

balancing.

LD

LD

Grillandductsizebasedon B. Transfergrillnotsealed. Transfergrillsealedwithmastic. calculatedrequirementsfornetfree

area.

Revision 02

Ducttobootconnectionof

jumpductnotfastenedandsealed.

C.

LD

GOODPICOFNO/

UNDERSIZEDGRILLOR

DUCTSINSTALLEDTO

PRESSUREBALANCEROOM

A.

LD




36



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DETAIL2.8B11

Bedroomspressurebalancedusinganycombinationoftransfergrills,jumpducts,dedicatedreturnducts,and/

orundercutdoorstoachieveaRatermeasuredpressuredifferential3Pa(0.012in.w.c.)withrespecttothemain

bodyofthehousewhenbedroomdoorsareclosedand

theairhandlerisoperating

A. EPArecommendsthattransfergrills,jumperductsordedicated

returnsbeinstalledanddoorsundercuttoapproximately3/4

abovethefinishedfloor.

B. Testthepressuresofeachbedroom.

ROOM PRESSUREPA WITH RESPECTTOMAINB ODY

Bedroom1

Bedroom2

Bedroom3

Bedroom4

Bedroom5

B

C

TRADES

FRAMER

HVAC

Bedroom6

FOOTNOTES

11. ForHVACsystemwithmulti-speedfans,thehighestdesignfan

speedshallbeusedwhenverifyingthisrequirement.

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LD LD

A. Returnhasnotbeensealed. Returnducthasbeenproperlysealedwithmastic.

PRESSURERELIEFTIPS

EPArecommendsthatHVACContractorsinstalltransfergrills,jumper

ducts,ordedicatedreturns.

EPArecommendsthatFramersundercutdoorstoapproximately3/4

abovethefinishedfloor.

Iftransfergrillsareused,Contractorsmustinstallandsealproperlysized

transfergrillsaccordingtotheloadcalculation.

Ifjumperductsareinstalled,Contractorsmustsealallseams,gaps,and

holesoftheductsandconnections.

Ifreturnductsareinstalled,Contractorsmustsealallseams,gaps,and

holesofthereturnductsystemwithmasticandsealthereturnboxtothe

floor,wall,orceilingwithmastic,caulk,and/orfoam.

Toseephotosofproperandimproperinstallation,seeDetail2.8A.

Returnboxhasnotbeen ReturnboxhasbeenproperlyB.sealed. sealedwithmastic.

PRESSURETESTINGTIPS

Priortotestingpressures:

Verifyallsupplyandreturnterminationsareunrestricted.

TurntheHVACsystemontocoolingmode.Ifthereisnocoolingmode,setittoheatingmode.

Verifyairisblowingoutofthesupplyterminations.

Verifythereferencepressureismeasuringtheoutdoorpressure.

Testallpressuresbyplacingthepressuremeasuringdeviceineach

bedroomwiththedoorshut.

ADDITIONALINFORMATION

Foradditionalinformationandspecificducttestingprotocolspleaserefer

toRESNETChapter8(StandardforPerformanceTestingandWorkScope:

EnclosureandAirDistributionLeakageTesting).

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ENERGY STAR QUALIFIED HOMES


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SECTION3. DUCTINSULATION

3.1. Allconnectionstotrunkductsinunconditionedspaceareinsulated

3.2. Prescriptive Path:Supplyductsinunconditionedattichaveinsulation

R-8

Performance Path:SupplyductsinunconditionedattichaveinsulationR-6

3.3. Allothersupplyductsandallreturnductsinunconditionedspacehave

insulationR-6

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3 DUCTINSULATION

1 ALLCONNECTIONSTOTRUNKDUCTSINUNCONDITIONEDSPACEAREINSULATED

DETAIL3.1

Allconnectionstotrunkductsinunconditionedspace

areinsulated

A. Sealallseams,gaps,andholesofalltrunkductconnections

beforeinstallinginsulation,preferablywithmastic.


voidsaroundallconnectionsandexposedductwork.

C. Sealductinsulationtoboottopreventaccumulationof

condensation,preferablywithmastic.

CONNECTIONSTOSEALANDINSPECT

Listedbelowarecommonplacesinaductsystem,whereHVAC

ContractorsmustsealinunconditionedspacesandareasthatRaters

mustinspectforproperlysealedandinsulatedconnections:

SUPPLY

Boots

Ductsplicing(twoductsputtogether)

Mainsupplytrunktoductwork

RETURN

Returnboxtoductwork

PRESSUREBALANCING

Jumpductboxestoductwork

Dedicatedreturnboxestoductwork

VENTILATION

Returnboxtooutsideairductwork

Exhaustfanstodedicatedductwork ERV/HRVtodedicatedductwork

TRADES

HVAC

B&C

SEAL

SEAL

SEAL

SEAL

B&C

TRADES

HVAC

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3 DUCTINSULATION

1 ALLCONNECTIONSTOTRUNKDUCTSINUNCONDITIONEDSPACEAREINSULATED

Trunktoductconnections Trunktoductconnectionsare Ductworkisuninsulated SeamsarebeingproperlysealedA.areonlymechanically properlyinsulatedandhavebeen andnotsealedatseams. withmasticandmeshtape.

fastenedandnotsealed. sealedwithmastic.

C.

A.

LD

Bootisuninsulated. Ductinsulationisinstalledover Insulationdoesnotcover BoothasbeencoveredwithB.boot. bootandisnotsealed. insulationandsealedwithmastic.

Revision 02

LD

LD LD

42



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Revision 02


3 DUCTINSULATION

23 ALLDUCTSINUNCONDITIONEDSPACEINSULATED

DETAIL3.2

Prescriptive Path:Supplyductsinunconditionedattic

haveinsulationR8

Performance Path:Supplyductsinunconditionedattic

haveinsulationR6

A. Installinsulatedductwork,boxesandbootsinallunconditioned

atticspacestomeeteithertheprescriptiveorperformancepath.

B. Installallductsinunconditionedspaceswithoutcompressing

theinsulation.

DETAIL3.3

Allothersupplyductsandallreturnductsin

unconditionedspacehaveinsulationR6

A. Installinsulatedductwork,boxesandbootsinallunconditioned

spaces.

B. Installallductsinunconditionedspaceswithoutcompressing

theinsulation.

Common unconditioned places include:

Basements

VentedCrawlspaces

ClosedCrawlspaces BonusRoomAtticSpace

TRADES

HVAC

A

A

BLABEL

LABEL

LABEL

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3 DUCTINSULATION

23 ALLDUCTSINUNCONDITIONEDSPACEINSULATED

A. Ductislocatedin Ductislocatedinunconditionedunconditionedspaceandis spaceandisproperlyinsulated.

notinsulated.

ENERGYSTARPRESCRIPTIVEPATH

Theprescriptivepathprovidesasinglesetofmeasuresthatcanbeusedtoconstruct

anENERGYSTARqualifiedhome.

Modelingisnotrequired,butnotrade-offsareallowed.Followthesestepstousethe

prescriptivepath:1. Firstassesseligibilityofusingtheprescriptivepathbycomparingtheconditioned

floorarea(CFA)ofthehometobebuilttotheCFAoftheBenchmarkHome,as

specifiedinExhibit3.TheCFAoftheBenchmarkHomeisdeterminedbasedon

thenumberofbedroomsinthehometobebuilt.IftheCFAofthehometobe

builtexceedsthisvalue,thentheperformancepathshallbeused.

2. Ifthehometobebuiltiseligibletofollowtheprescriptivepath,buildthehome

usingthemandatoryrequirementsforallqualifiedhomes,Exhibit1,andall

requirementsoftheENERGYSTARReferenceDesign,Exhibit2.

3. VerifythatallrequirementshavebeenmetusingaRater.

LD

B. Ductisinsulatedbut Ductsareproperlyinsulatedandstrappingiscompressing supportedwithoutcompressing

theinsulationtherefore theinsulation.

reducingtheR-value.

ENERGYSTARPERFORMANCEPATH

Theperformancepathprovidesflexibilitytoselectacustomcombinationofmeasures

foreachhomethatisequivalentinperformancetotheminimumrequirementsofthe

ENERGYSTARReferenceDesignHome.Exhibit1.4Equivalentperformanceisassessed

throughenergymodeling.

1. TheHERSIndexoftheENERGYSTARReferenceDesignHomeisfirstdetermined.

TheENERGYSTARReferenceDesignHomeissimilartothehomethatwillbebuilt,

exceptthatitisconfiguredwiththefeaturessummarizedinExhibit22.Notethat

anystateenergycoderequirementsthatexceedthosespecifiedinExhibit2take

precedenceforconfiguringtheENERGYSTARReferenceDesignHome.

2. CalculatetheSizeAdjustmentFactor(SAF)andENERGYSTARHERSIndexTarget.

3. Configurethepreferredsetofenergymeasuresfortheratedhomeandverifythat

theresultingHERSIndexmeetsorexceedstheENERGYSTARHERSIndexTarget.

4. ConstructthehomeusingmeasuresthatresultinaHERSIndexatorbelowthe

ENERGYSTARHERSIndexTarget,

5. VerifythatallrequirementshavebeenmetusingaRater.

LD

Formoreinformation: http://www.energystar.gov/ia/partners/bldrs_lenders_raters/downloads/NationalProgramRequirements.pdf Revision 02 44

ENERGY STAR QUALIFIED HOMES
http://www.energystar.gov/ia/partners/bldrs_lenders_raters/downloads/nationalProgramrequirements.pdfhttp://www.energystar.gov/ia/partners/bldrs_lenders_raters/downloads/nationalProgramrequirements.pdf


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ENERGYSTAR QUALIFIEDHOMES


SECTION4. DUCTLEAKAGE

4.1. TotalRater-measuredductleakage6CFM25per100sq.ft.ofconditioned

floorarea

4.2. Rater-measuredductleakagetooutdoors4CFM25per100sq.ft.of

conditionedfloorarea

4.3. Ductbootssealedtofloor,wall,orceilingusingcaulk,foam,mastictape,or

masticpaste

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Q

4 DUCTLEAKAGE

12 MEASUREDDUCTLEAKAGE

DETAIL4.213,14,15,

Ratermeasuredductleakagetooutdoors4CFM25

per100sq.ft.ofconditionedfloorarea


beforeinstallinginsulation.Masticisrecommendedforsealing.B. Installinsulationwithoutmisalignment,compression,gaps,or


C. Sealductinsulationinplace.Masticisrecommendedforsealing.

D. EPArecommendstestingductsonlyaftercompletingavisual

inspectionofproperductsealing.

Footnoteslocatedonfollowingpage.

Zone1 7 3.5

Zone2 7 3.5

Zone3 6 3.0

Zone4 6 3.0

Zone5 5 2.5

Zone6 5 2.5Zone7 5 2.5

DETAIL4.113,14,

TotalRatermeasuredductleakage6CFM25per100

sq.ft.ofconditionedfloorarea*


beforeinstallinginsulation,preferablywithmastic.



C. Sealductinsulationinplace.Masticisrecommendedforsealing.

D. EPArecommendstestingductsonlyaftercompletingavisual

inspectionofproperductsealing.


INFILTRATIONDuctleakagetestingcanbewaivedifallducts&airhandlingequipmentare

locatedwithinthehomesairandthermalbarriersANDenvelopeleakagehas

beentestedtobelessthanorequaltohalfoftheReferenceDesigninfiltration

limitfortheClimateZonewherethehomeistobebuilt.

MaxInfiltrationforReferenceDesignClimateZone WaivedDuctLeakage

ACH50ACH50

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HVACSYSTEMQUALITYINSTALLATIONRATERCHECKLISTFOOTNOTES

13. DuctleakageshallbedeterminedanddocumentedbyaRaterusingaRESNET-

approvedtestingprotocolonlyafterallcomponentsofthesystemhavebeeninstalled

(e.g.,airhandlerandregistergrilles).Leakagelimitsshallbeassessedonaper-system,

ratherthanper-home,basis.Testingofductleakagetotheoutsidecanbewaivedifall

ducts&airhandlingequipmentarelocatedwithinthehomesairandthermalbarriers

ANDenvelopeleakagehasbeentestedtobelessthanorequaltohalfoftheprescriptive

pathinfiltrationlimitfortheClimateZonewherethehomeistobebuilt.

14. Forallhomesthathavelessthan1,200sq.ft.ofconditionedfloorarea(CFA),total

measuredductleakageshallbe8CFM25per100sq.ft.ofCFAandmeasuredduct

leakagetooutdoorsshallbe5CFM25per100sq.ft.ofCFA.

15. Iftotalductleakageis4CFM25per100sq.ft.ofconditionedfloorarea,or5

CFM25per100sq.ft.ofconditionedfloorareaforhomesthathavelessthan1,200sq.ft.

ofconditionedfloorarea,thenleakagetooutdoorsneednotbetested.

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4 DUCTLEAKAGE

3 DUCTBOOTSSEALEDTOFLOOR,WALL,ORCEILING

DETAIL4.3Ductbootssealedtofloor,wall,orceilingusingcaulk,

foam,mastictape,ormasticpaste

A. Sealallseams,gaps,andholesofallductbootstothefloor,wall,

orceiling,preferablywithmastic.

TRADES

HVAC

SEAL

A

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4 DUCTLEAKAGE

3 DUCTBOOTSSEALEDTOFLOOR,WALL,ORCEILING

Boottodrywallconnectionsealed.Boottodrywallconnection

notsealed.

Boottofloorconnectionsealed.Boottofloorconnection

notsealed.A. A.

LD LD

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HVACSYSTEMQUALITYINSTALLATIONRATERCHECKLISTSECTION5. WHOLEBUILDINGDELIVEREDVENTILATION

5.1. Rater-measuredventilationrateiswithin100-120%ofHVACcontractor

designvalue(2.11)

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5 WHOLEBUILDINGDELIVEREDVENTILATION1 MEASUREDVENTILATIONRATEISWITHIN100120%OFHVACCONTRACTORDESIGNVALUES

DETAIL5.116

Ratermeasuredventilationrateiswithin100120%of

HVACcontractordesignvalue(2.11)

EPArequiresaventilationsystemthatmeetsASHRAE62.2-2010and

sealingallholes,gaps,andseamsofductsandtheirconnections

including:

A. Supply(suchasanintakeducttothereturnsideoftheHVAC

systemcoupledwithamotorizeddamperandcontrolsystem).

B. Exhaust(suchasacontinuouslyoperatingexhaustfan).

C. Balanced(suchasanERVorHRV).

FOOTNOTES

16. Thewhole-houseventilationairflowandlocalexhaustair

flowsshallbemeasuredbytheRaterusingaflowhood,flowgrid,

anemometer(inaccordancewithAABC,NEBBorASHRAEprocedures),

orsubstantiallyequivalentmethod.

HOUSE

DedicatedSupply

AirLeak

age

AirLeakage

AirLeakage

HOUSE

AirLea

kage

AirLeakage

AirLeakage

HOUSE

DedicatedSupply

DedicatedExhaust

DedicatedExhaust

AirLeakage

A.

B.

C.

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5 WHOLEBUILDINGDELIVEREDVENTILATION1 MEASUREDVENTILATIONRATEISWITHIN100120%OFHVACCONTRACTORDESIGNVALUES

LD LD

Ventilationtiedinto Ventilationtiedintothereturnwith

thereturnwithouta amechanicaldamper.

mechanicaldamper.

GOODPICOFPROPERLY

INSTALLEDERV/HRV

Revision 02

C. ProperlyinstalledERV/HRV. ProperlyinstalledERV/HRV.

A.

Exhaustfaninstalledbut Inlineexhaustventilationinstalled.B.inwrongdirectioncausing

excessivebendandductis

uninsulated.

TESTINGVENTILATIONRATE

TheHVACContractorandtheRatercancalculatetheASHRAE62.2-2010

ventilationrateusingthisformula:

(7.5CFM)*(NumberofBedrooms+1)+(0.01CFM)*(SquareFootageoftheConditionedSpace)=VentilationRateinCFM

TheHVACcontractormustattachdocumentationshowingtheventilation

systemtype,location,anddesignratetotheHVACSystemQuality

InstallationContractorChecklist.

TheRatermustuseaflowhood,flowgrid,anemometer,oranother

substantiallyequivalentmethodtotesttheventilation.

TestingmustbeinaccordancewithAABC,NEBB,orASHRAEprocedures.

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HVACSYSTEMQUALITYINSTALLATIONRATERCHECKLISTSECTION6. CONTROLS

6.1. AirflowisproducedwhencentralHVACfanisenergized(setthermostatto

fan)

6.2. Coolairflowisproducedwhenthecoolingcycleisenergized(setthermostat

tocool)

6.3. Heatedairflowisproducedwhentheheatingcycleisenergized(set

thermostattoheat)

6.4. Continuously-operatingventilationandexhaustfansincludereadily

accessibleoverridecontrols

6.5. Ventilationcontrolslabeled,unlessfunctionisobvious(e.g.,bathroom

exhaustfan)

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6 CONTROLS

13 THERMOSTATCONTROLS

DETAIL6.1

AirflowisproducedwhencentralHVACfanisenergized

(setthermostattofan)

A. Turnthefanonatthethermostat.

B. Resetthethermostattotheoriginalsettingsbeforecontinuing.

DETAIL6.217

Coolairflowisproducedwhenthecoolingcycleis

energized(setthermostattocool)

D. Turnthesystemontocoolandchangethesetpointtemperature

to3degreesbelowtheambienttemperature.

E. Resetthethermostattotheoriginalsettingsbeforecontinuing.

F. Ifthesystemdoesnothaveairconditioning,thisitemdoesnot

needtobeverified.

A&B

D&E,

G&H

D

G

SYSTEMOUTPUTTEMPERATURE

Ratersshouldverifythattheheatingandcoolingsystemsareworkingproperlyby

measuringtheoutputtemperatureofthesystems.DETAIL6.317

Heatedairflowisproducedwhentheheatingcycleis

energized(setthermostattoheat)

G. Turnthesystemontoheatandchangethesetpointtemperature

to3degreesabovetheambienttemperature.

H. Resetthethermostattotheoriginalsettingsbeforecontinuing.

FOOTNOTES

17. IncaseswherethecondenserunitisinstalledafterthetimeofinspectionbytheRater,theRaterisexemptfromverifyingitem6.2whenthecondenserisforanACunit

andalsoitem6.3whenthecondenserisforaheatpumpunit.

SystemType Heating Cooling

AirConditioner

Boiler

ElectricResistance

HeatPump

NaturalGasFurnace

OilFurnace

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6 CONTROLS

4 CONTINUOUSLYOPERATINGVENTILATION&EXHAUSTFANSINCLUDEOVERRIDECONTROLS

DETAIL6.4

Continuouslyoperatingventilationandexhaustfans

includereadilyaccessibleoverridecontrols

A. Installcontinuouslyoperatingventilationandexhaustfansthat

haveoverridecontrolaccessories.

B. Installoverridecontrolsforallfansinaneasilyaccessiblelocation.

OVERRIDECONTROLLOCATIONItisimportantforHVACContractorsandelectricianstolocatethe

overridecontrolsforcontinuouslyoperatingventilationandexhaust

fansinalocationeasilyaccessibletothehomeowner.Itisalso

importanttoproperlylabelthesecontrols.Ifcontrolsarenotproperly

labeled,fansmaybemistakenlyturnedoff.

OverrideControlLocationRecommendations:

Locatethelabeledcontrolnearthethermostat,creatingacontrol

centerforthehomeowner.Thisallowsthehomeownertoaccess

themajorityoftheHVACsystemcontrolsinoneplace.Thissetupisidealforventilationsystems,suchasERVsandHRVs,thatmaybe

locatedininaccessibleplaces.

Locateaswitchontheelectricalpanelwithalabel.Thisprevents

accidentalturnoffoffansandalsoprovidesoneswitchforall

fans.Thissetupisidealforahousethathasmultiplecontinuously

runningexhaustfans.

Somebathexhaustfanshaveinternaloverridesystems,eitheron

theelectricalswitchplateordefinedinthemanufacturersmanual.

Theseexhaustfansmeettherequirementaslongastheoverrideisaccessible.

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Thermo

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6 CONTROLS4 CONTINUOUSLYOPERATINGVENTILATION&EXHAUSTFANSINCLUDEOVERRIDECONTROLS

BADPICOFEQUIPMENTINSTALLEDWITHOUT

GOODPICOFEQUIPMENTOVERRIDECONTROL BADPICOFBADLOCATION

INSTALLEDWITHOVERRIDEOPTIONS?ORPICOF FOROVERRIDEEQUIP.

CONTROLOPTIONSEQUIPMENTINSTALLED

WITHOUTIT?

LD LD

A. B.

Overridecontrolswitchescentrallylocatednearthermostatforeaseof

access.

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6 CONTROLS

5 CONTROLSLABELED,UNLESSFUNCTIONISOBVIOUSE.G.,BATHROOMEXHAUSTFAN

DETAIL6.5

Ventilationcontrolslabeled,unlessfunctionisobvious(e.g.,bathroomexhaustfan)

A. Installcontrolsthataredifferentiatedorlabeledbythe

manufacturer.

B. Ifmanufacturerlabeledcontrolsdonotexist,installpermanent

labelstoindicatethefunctionofthecontrol.

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FAN

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6 CONTROLS5 CONTROLSLABELED,UNLESSFUNCTIONISOBVIOUSE.G.,BATHROOMEXHAUSTFAN

Manufacturerlabeledcontrols.Controlsarenotlabeled.Manufacturerlabeledventilationswitch.

Ventilationisnotlabeled.A. A.

LD LD

LD

Ventilationisnotlabeled. InstallerpermanentlylabeledB.ventilationswitch.

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HVACSYSTEMQUALITYINSTALLATIONRATERCHECKLISTSECTION7. VENTILATIONAIRINLETS&VENTILATIONSOURCE

7.1. Allventilationairinletslocated10ft.ofstretched-stringdistancefromknowncontaminationsourcessuchasstack,vent,exhausthood,orvehicle

exhaust.Exception:ventilationairinletsinthewall3ft.fromdryer

exhaustsandcontaminationsourcesexitingthroughtheroof

7.2. Ventilationairinlets2ft.abovegradeorroofdeckinClimateZones1-3or4ft.abovegradeorroofdeckinClimateZones4-8andnotobstructedbysnow,plantings,condensingunitsorothermaterialattimeofinspection

7.3. Ventilationairinletsprovidedwithrodent/insectscreenwith0.5inch

mesh

7.4. Ventilationaircomesdirectlyfromoutdoorsandnotfromadjacentdwelling

units,garages,crawlspaces,orattics

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7 VENTILATIONAIRINLETS&VENTILATIONSOURCE1 AIRINLETSLOCATEDAWAYFROMCONTAMINATIONSOURCES

DETAIL7.118

Allventilationairinletslocated10ft.ofstretched

stringdistancefromknowncontaminationsourcessuchasstack,vent,exhausthood,orvehicleexhaust.

Exception:ventilationairinletsinthewall3ft.from

dryerexhaustsandcontaminationsourcesexiting

throughtheroof

A. Verifylocationsofallcontaminationsourceterminations.

B. Installairinletsatleast10ft.awayfromallcontaminationsource

terminations.

C. Installairinletsatleast3ft.awayfromdryerexhaustsand

contaminationsourcesexitingthroughtheroof.

FOOTNOTES

18. Theoutletandinletofbalancedventilationsystemsshallmeet

thesespacingrequirementsunlessmanufacturerinstructionsindicate

thatasmallerdistancemaybeused.However,ifthisoccursthe

manufacturer'sinstructionsshallbecollectedfordocumentation

purposes.

B&C

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PLUMBER

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7 VENTILATIONAIRINLETS&VENTILATIONSOURCE2 VENTILATIONAIRINLETSLOCATEDABOVEGRADEORROOFDECK

LD LD

Ventilationinletdoesnot Ventilationinletisnotnearany C. Ventilationinletistooclose VentilationinletisappropriatelyB. terminatehighenough exhaustoutlets/contamination tothegroundandisbeing locatedabovegrade. abovetheroofdeck. sourcesandisatleast2ft.above blockedbythegrass.

theroofdeck.

AIRINLETINSTALLATIONTIPS

Itiseasiertoinstallanairinletatthegableendofthehousethantotrytoliftitofftheroof2-4feet.

InteractiveMap: http://energycode.pnl.gov/EnergyCodeReqs /

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7 VENTILATIONAIRINLETS&VENTILATIONSOURCE

3 VENTILATIONAIRINLETSPROVIDEDWITHMESHRODENT/INSECTSCREEN

DETAIL7.319

Ventilationairinletsprovidedwithrodent/insect

screenwith0.5inchmesh

A. Installrodent/insectscreenonallairinlets.

B. EPArecommendsinstallingtheairinletinanaccessiblelocation

thatallowsforcleaningthescreen.

FOOTNOTES

19. Withoutpropermaintenance,ventilationairinletscreensoften

becomefilledwithdebris.Therefore,EPArecommends,butdoesnot

require,thattheseventilationairinletsbelocatedsoastofacilitate

accessandregularservicebytheowner.

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7 VENTILATIONAIRINLETS&VENTILATIONSOURCE3 VENTILATIONAIRINLETSPROVIDEDWITHMESHRODENT/INSECTSCREEN

A. Meshscreenisspaced Meshscreeniscorrectlyinstalled Meshscreenisspaced MeshscreeniscorrectlyinstalledA.widerthan0.5"allowing andgapsarelessthan0.5". widerthan0.5"allowing andgapsaresmallerlessthan0.5".insectstoenter. insectstoenter.

Revision 02

B. Airinletisnotconvenient Airinletislocatedinaconvenientforcleaningandlocated placeforhomeownertoclean.

nexttoexhaustoutlets.

LD

LD

BADPICOFAIRINLET

WITHOUTASCREEN

LD

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HVACSYSTEMQUALITYINSTALLATIONRATERCHECKLISTSECTION8. LOCALMECHANICALEXHAUST

Ineachkitchenandbathroom,systeminstalledthatexhaustsdirectlytothe

outdoorsandmeetsoneofthefollowingRater-measuredairflowstandards:

8.1. KitchenContinuousRate:5ACH,basedonkitchenvolume*

KitchenIntermittentRate:100CFM

8.2. BathroomContinuousRate:20CFM*

BathroomIntermittentRate:50CFM

8.3. Iffanssharecommonexhaustduct,back-draftdampersinstalled

8.4. Commonexhaustductnotsharedbyfansinseparatedwellings

8.5. Clothesdryersventeddirectlytooutdoors,exceptforventlessdryers

equippedwithacondensatedrain

*Fansusedatcontinuousratemustberatedforcontinuoususe. ForadditionalinformationandspecificducttestingprotocolspleaserefertoRESNETChapter8(StandardforPerformanceTestingandWorkScope:EnclosureandAirDistributionLeakageTesting).

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1 KITCHEN

DETAIL8.116,20,21

Ineachkitchenandbathroom,systeminstalledthat

exhaustsdirectlytotheoutdoorsandmeetsoneofthefollowingRatermeasuredairflowstandards:*

Continuous rate is 5 ACH, based on kitchen volume 23

A. EPArecommendsselectingafanthatprovidesmorethan5air

changesperhour(ACH)inordertopulltherequiredamount.

Intermittent rate is 100 CFM 22,24

B. EPArecommendsselectingafanwitharatingof150-200CFMto

pullatleast100CFMwhenmeasured.

Continuous and Intermittent

C. Installthefantodirectlyexhausttotheoutdoorsthrougha

terminationwithlittleornorestriction.

D. Sealallseams,gaps,holes,andconnectionstotheexteriorofall

ventilationducts,preferablywithmastic.

E. EPArecommendstestingthekitchenfanaftercompletinga

visualinspectionofproperductsealing.

* Allkitchenfansmustcomplywitheitherthecontinuousorintermittentrate.


KITCHENFANRATING

Kitchenfansaretypicallyratedbyhowmanycubicfeetperminute(CFM)thefan

willexhaustinafactorysetting.Ductwork,terminationchoicesandinstallation

maydecreasethemeasuredCFMbelowthefactory-ratedCFM.

ToensuretheinstalledfanexhauststhecorrectamountofCFM,EPArecommends

theHVACContractortoinstallafanwitharatinghigherthantherequired

measuredamount.


Foradditionalinformationandspecificducttestingprotocolspleasereferto

RESNETChapter8(StandardforPerformanceTestingandWorkScope:EnclosureandAirDistributionLeakageTesting).

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C

&D

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1 KITCHEN

LD LD

CFMratingmaynot FanCFMratingishigherthan Recirculatingfaninstalled ExhaustfanhasterminatestotheA./B. C.meettheperformance therequirementincreasingthe thatdoesnotexhaustto outside. specificationonce likelihoodthatitwillmeetthe outside.

installed. performancelevelonceinstalled.

KITCHENFANSELECTION

TocalculatetheCFMrequirementofthekitchenfanforcontinuousrate,use

theequationbelow:

RequiredCFM=(5ACH)*(KitchenVolume)/(60minutes)

Ifintermittentfanflowrateofatleast100CFMislessthan5ACH,basedon

kitchenvolume,thenaventedrangehoodisrequired.

KITCHENFANTESTINGTIPS

Testthekitchenfanaftercompletingavisualinspectionofproperfan

installation.

Verifythekitchenfanissettoexhaustinsteadofrecirculate.

Useaflowhood,flowgrid,anemometer(inaccordancewithAABC,NEBB,

orASHRAEprocedures),orotherequivalentmethodtotestthefan.

Revision 02

Exhaustductworkandpenetration

totheexteriorhavebeensealed

withmastic.

Exhaustductworkand

penetrationtotheexterior

havenotbeensealed.

D.

LD

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16. Thewhole-houseventilationairflowandlocalexhaustairflowsshallbemeasuredbytheRaterusingaflowhood,flowgrid,anemometer(inaccordancewithAABC,NEBB

orASHRAEprocedures),orsubstantiallyequivalentmethod.

20. PerASHRAE62.2-2010,anexhaustsystemisoneormorefansthatremoveairfrom

thebuilding,causingoutdoorairtoenterbyventilationinletsornormalleakagepaths

throughthebuildingenvelope.Examplesincludebathexhaustfans,rangehoods,and

clothesdryers.

21. PerASHRAE62.2-2010,abathroomisanyroomcontainingabathtub,shower,spa,or

similarsourceofmoisture.

22. Anintermittentmechanicalexhaustsystem,whereprovided,shallbedesignedtooperateasneededbytheoccupant.Controldevicesshallnotimpedeoccupantcontrol

inintermittentsystems.

23. Kitchenvolumeshallbedeterminedbydrawingthesmallestpossiblerectangle

onthefloorplanthatencompassesallcabinets,pantries,islands,andpeninsulasand

multiplyingbytheaverageceilingheightforthisarea.Cabinetvolumeshallbeincluded

inthekitchenvolumecalculation.

24. Iftheflowrateoftheselectedexhaustfanislessthan5ACH,basedonkitchen

volume,thenaventedrangehoodorappliance-rangehoodcombinationisrequired

ratherthanaremotefanthatisnotintegraltotherange.Also,forintermittentkitchen

exhaustfansthatareintegratedwithmicrowaves,aratedairflowratethatis200CFMmaybeusedinlieuofmeasuringtheactualairflowrate.

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2 BATHROOM

DETAIL8.216,20,21

Ineachbathroom,systeminstalledthatexhausts

directlytotheoutdoorsandmeetsoneofthesemeasuredairflowstandards:*

Continuous rate is 20 CFM

A. EPArecommendsselectingafanwitharatingof50CFMtopullat

least20CFMwhenmeasured.

Intermittent rate is 50 CFM 22

B. EPArecommendsselectingafanwitharatingof70CFMtopullat

least50CFMwhenmeasured.

Continuous and Intermittent

C. Installthefantodirectlyexhausttotheoutdoorsthrougha

terminationwithlittleornorestriction.

D. Sealallseams,gaps,holes,andconnectionstoexteriorofall

ventilationducts,preferablywithmastic.

E. EPArecommendscompletingavisualinspectionofproperfan

installation,priortotestingthefan.

* Allbathroomfansmustcomplywiththecontinuousorintermittentrate.


BATHROOMFANRATING

Abathroomisanyroomcontainingabathtub,shower,spa,orsimilarsourceofmoisture.

Bathroomfansaretypicallyratedbyhowmanycubicfeetperminute(CFM)thefanwillexhaustinafactorysetting.Ductwork,terminationchoicesandinstallationmay

decreasethemeasuredCFMbelowthefactory-ratedCFM.

ToensuretheinstalledfanexhauststhecorrectamountofCFM,EPArecommendsinstallingafanwitharatinghigherthantherequiredmeasuredamount.


ForadditionalinformationandspecificducttestingprotocolspleaserefertoRESNET

Chapter8(StandardforPerformanceTestingandWorkScope:EnclosureandAirDistributionLeakageTesting).

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A&B

D

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2 BATHROOM

CFMratingmaynotmeettheperformance

specificationonce

installed.

A/B.

LD

LD

Revision 02

Exhaustductonly

mechanicallyfastenedand

notsealed.

D.

FanCFMratingishigherthantherequirementincreasingthe

likelihoodthatitwillmeetthe

performancelevelonceinstalled.

Exhaustducthasbeen

mechanicallyfastenedandsealed

withmastic.

LD

Twoexhaustterminations, ExhausthasbeenproperlyC. joinedinaroughlycuthole installed,sealed,andterminatestorestrictiveholeandnotair outdoors.

sealed.

BATHROOMFANTESTINGTIPS

Testthebathroomfanaftercompletingavisualinspectionofproperfan

installation.

Sealbathfanstothedrywall,includingconditionedareas.Thiswill

ensureairisexhaustedfromthebathroomandnottheplenum.

Useaflowhood,flowgrid,anemometer(inaccordancewithAABC,NEBB

orASHRAEprocedures)orotherequivalentmethodtotestthefan.

Verifythatthecontroldevicesofthebathroomfandonotimpedeoccupantcontrol.

If the fan is not pulling enough:

Verifytheexteriorterminationisoperatingproperly.

Verifythefandamperswingsfreelyandpackingtapeisremoved.

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16. Thewhole-houseventilationairflowandlocalexhaustairflowsshallbemeasuredbytheRaterusingaflowhood,flowgrid,anemometer(inaccordancewithAABC,NEBB

orASHRAEprocedures),orsubstantiallyequivalentmethod.

20. PerASHRAE62.2-2010,anexhaustsystemisoneormorefansthatremoveairfrom

thebuilding,causingoutdoorairtoenterbyventilationinletsornormalleakagepaths

throughthebuildingenvelope.Examplesincludebathexhaustfans,rangehoods,and

clothesdryers.

21. PerASHRAE62.2-2010,abathroomisanyroomcontainingabathtub,shower,spa,or

similarsourceofmoisture.

22. Anintermittentmechanicalexhaustsystem,whereprovided,shallbedesignedtooperateasneededbytheoccupant.Controldevicesshallnotimpedeoccupantcontrol

inintermittentsystems.

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34 COMMONEXHAUSTDUCTS

DETAIL8.3

Iffanssharecommonexhaustduct,backdraftdampers

installedA. Installback-draftdampersonallfanssharingacommonexhaust

duct.

B. Removeallpackingtapefromback-draftdampers.

DETAIL8.425

Commonexhaustductnotsharedbyfansinseparate

dwellingsC. Installseparateexhaustductsforseparateunits.

If fans from separate dwellings do share a common exhaust duct, one

of the following must apply:

D. ThefansmustruncontinuouslyOR

E. Eachoutletmusthaveaback-draftdampertopreventcross-

contaminationwhenthefanisnotrunning.

FOOTNOTES

25. Exhaustoutletsfrommorethanonedwellingunitmaybeserved

byasingleexhaustfanifthefanrunscontinuouslyorifeachoutlethas

aback-draftdampertopreventcross-contaminationwhenthefanis

notrunning.

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34 COMMONEXHAUSTDUCTS

Fansharesexhaustand Fansharesexhaustandhasaback- B. Back-draftdamperstill PackingtapehasbeenremovedA. doesnothaveaback-draft draftdamperinstalled. hasapieceoftapethat anddamperwillbeabletofunctiondamperinstalled. preventeditfromrattling properlyoncefanisinstalled.

duringshipping.

Revision 02

C. Fansfromseparate Separatedwellingswiththeirowndwellingsexhausted separateexhaustterminations.

togetherwithoutback-draftdampersandnotsealed.

BADPICOFSHAREDEXHAUSTDUCTBETWEEN

DWELLINGS

LD

LD LD

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CLOTHES DRYERS VENTED DIRECTLY TO OUTDOORS


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5 CLOTHESDRYERSVENTEDDIRECTLYTOOUTDOORS

Dryerventsdirectlytotheoutdoors.

Dryerexhaustlineterminatesinthe

crawlspace.

Dryerventsdirectlytotheoutdoors.

Dryerventisrunverticalwitha90degreebend

anddoesnotventtothe

outside.

A. A.

GOODPICOFDRYER

VENTEDTOTHEEXTERIOR

LD LD

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13 SUPPLY&EXHAUSTFANS

DETAIL9.126,

Intermittentsupply&exhaustfansratedat400CFMA. Installfansratedbythemanufacturerat3sonesorless.

B. Ifthefanhasaratedflowequaltoorabove400CFM,the

requirementdescribedinAdoesnotapply.

DETAIL9.226,

Continuoussupply&exhaustfansratedat500CFM

InstallENERGYSTARqualifiedfansifthefans:

D. Arepartofawhole-housemechanicalventilationsystem

E. Haveaflowratelessthan500CFM

TRADES

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A-C

Footnoteslocatedonfollowingpage.Revision 02 91


ENERGY STAR V3 HVAC Quality Installation Guidebook 2.21.2011

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Transcript of ENERGY STAR V3 HVAC Quality Installation Guidebook 2.21.2011