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<br /> ' MECHANICAL VENTILATI�N , Prescriptive Energy Code Compliance for AII Climate Zones in Washington
<br /> '. ��. Project lnformation Contact Information
<br /> ' S@Ct1011 M��JOT-M@CIlaC11CaI VeIItllatl011. ' MODERN 2 STORY SFR MODERN 2 STORY
<br /> ' Whole House Ventilation (Prescriptive) IRC Sec. M1507.3 &WAC 51-51-1507 ' HaacKBROTHERs
<br /> ', M 1507.1 GeneraL Local exhaust and whole-house mechanical ventilation ' window,Skylight and Door Schedule
<br /> ' systems &equipment shall be designed in accordance with this section. ' rn�s P�o;e�t W����Se tne�eqU��eme�cs of cne P.es���pt��e Pacn be�aW and���o�Porate cne
<br /> Project Information Contact Information the minimum values listed.In addition,based on the size of the structure,the appropriate
<br /> ' M1507.2 RECIRCULATION of air. Exhaust air from bathrms and toilet rms ' n�o�ERrv zooz sTORY sFR MODERN 2 STORY SFR number of additional credits are checked as chosen bythe permit applicant.
<br /> ', shall not be re-circulated within a residence and shall be exhausted directly HaacK BRorHERs
<br /> ', to outdoors. Exhaust air from bathrms & toilet rms shall not discharge into ' A�tno��Zed RePresencat��e Date �
<br /> ' attic, crawlspace or other areas of the building. '� ,vi ci�mace zones �
<br /> , Width Height R-Valuea U-Factor� Q
<br /> ' M1507.3 Whole-house mechanical ventilation system. ', Ref. u-ra�tor Qt. Feet �°°h Feet �°°h Area ua Fenestration U-Factor° n/a o.so
<br /> Whole-house mechanical ventilation systems shall be designed in accordance ' EXempt sw��g�ng�oor�2a sq.ft.maX.� � o.o o.00 Sk light U-Factor n/a o.so
<br /> Exempt Glazed Fenestration(15 sq.ft.max.) 0.0 0.00 Glazed Fenestretion SHGC"` n/a n/a �
<br /> with Sections M1507.3.1 through M1507.3.3. ' ce���� k a� o.ozs
<br /> Select See code text for footnote references
<br /> Section M1507.3 of the high efficiency fan (maximum 0.35watts/cfm), CIOt ', �ical Fenestration(Windows and doors) Wood Frame Wall9'"" z, ��c o.oss
<br /> interlocked with the furnace fan. Ventilation systems using a fumace including opr'°" Component Width Height Mass Wall R-Value 2vz,^ o.oss z
<br /> an ECM motor are allowed, provided that they are controlled to operate at low �es�r;pt;on Ref. U-factor Qt. Feeth�°�h��Feet �°°��°°^ Area ua F'°°� so9 o.o2s p
<br /> speed in ventilation only mode. o.0 0.00 BelowGradeWall`" 10/15/21 int+T6 0.042 �
<br /> Slab°R-Value&Depth 10,2 ft n/a �
<br /> M1507.3.1 System design. ', v�nyi w�ndows 0.0 0.00 'Table R402.1.1 and Table R402.1.3 Footnotes included on Page 2.
<br /> The whole-house ventilation s stem shall consist of one or more su I or wo� Fx o.2s � 2 2 0.0 0.00 �
<br /> , y pp y Each dwelling unit in a residential buildinq shall comply with sufficient options from Table R406.2 so as to
<br /> ' @XflaUSt fatlS, or a combination of such, and associated ducts and controls. Local ' wo3 s� 0.30 1 3 3 6 10.5 3.15 acnieve the following minimum number of credits: q
<br /> exhaust or supply fans are permitted to serve as such a system. Outdoor air ducts ' • woa Fx o.2a 1 3 9 2�.0 �.5s 1.Small Dwelling Unit: 1.5 credits
<br /> connected to the return side of an air handler shall be considered to provide supply wos s� 0.30 1 5 2 10.0 3.00 ❑ Dwelling units less than 1500 square feet in conditioned floor area with less than 300 square feet of O
<br /> fenestration area. Additions to existi�g building that are greater than 500 square feet of heated floor area but
<br /> ' VE'.IItllatlOfl. WQ6 SL 0.30 1 5 4 20.0 6.00 less than 1500 square feet.
<br /> M��J�7.3.2 SyStefTt COIItfO�S. W07 SL 0.30 1 5 4 20.0 6.00 �2.Medium Dwelling Unit: 3.5 credits
<br /> W 08 SL 0.30 1 6 2 12.0 3.60 All dwelling units that are not included in#1 or#3.Exception:Dwelling units serving R-2 occupancies shall
<br /> ' The whole-house mechanical ventilation system shall be provided with controls �
<br /> W09 SL 0.30 1 6 5 30.0 9.00 require 2.5 credits. �
<br /> ' that enabfes manual override. �r
<br /> ' W 10 SL 0.30 1 6 5 30.0 9.00 �3.Large Dwelling Unit: 4.5 credits �
<br /> , M 1507.3.3 Mechanical ventilation rate. w�� s� 0.30 1 6 7 42.0 12.60 Dwelling units exceeding 5000 square feet of conditioned floor area. C r,
<br /> ' The whole-house mechanical ventilation system shall provide outdoor air at a w�2 s� o.so � � 5 35.0 10.50 4. Additions less than 500 squarefeet: .5 credits •� o �
<br /> continuous rate of not less than that determined in accordance with Table w�s s� 0.30 2 6 4 48.0 14.40 Table R406.2 Summary � W N N
<br /> ' M�5�7.3.3���. ' W02 SL 0.30 1 3 3 9.0 270 Option Description Credit s � Z � d'
<br /> 1a Efficient Building Envelope 1a 0.5 ❑ � -�
<br /> ' Exception: The whofe-house mechanical ventilation system is permitted to operate ; �os encry door 0.30 2 3 7 42.0 12.60 1b Efficient Building Envelope 1b 1.0 � �-=� n' Q �
<br /> , intermittently where the system has controls that enable operation for not less �os s�o 0.30 1 6 7 42.0 12.60 �c Efficient Building Envelope 1c 2.0 ❑ ?- � � � U
<br /> than 25-percent of each 4-hour segment and the ventilation rate prescribed in W14 FX o.2s 2 � 2 � 16.3 4.57 1d Efficient Building Envelope 1d o.s ❑ Q � � �.�
<br /> Table M1507.3.3(1) is multiplied by the factor determined in accordance with ', w�5 s� 0.30 2 6 5 60A �a.00 za Air Leakage Control and Efficient Ventilation 2a o.5 0 os ,,, '� � . �
<br /> 2b Air Leakage Control and Efficient Ventilation 2b 1.0 � Q � p � �
<br /> Table M1507.3.3(2). ' o.o o.00
<br /> 2c Air Leakage Control and Efficient Ventilation 2c 1.5 � } � � ��
<br /> ' 0.0 0.0� 3b High Efficiency HVAC 3b �p � 1A � � � �
<br /> WINDOW OR WALL PORTS: IRC M1507.3.4.4 Outdoor air shall be distributed ' ❑ C�
<br /> to each habitable room by individual outdoor air inlets. Individual room outdoor ', s� H� h Efficiency HVAC 3c ,.s � w
<br /> Sum of Vertical Fenestration Area and UA 453.8 135.28 ❑ N
<br /> 3d High Efficiency HVAC 3d 1.0 � z 'p
<br /> air inlets shall have a controllable and secure opening and be capable of a total ' ve�r�oai Fenesrrar�on area wergnred u=uaA�ea o.so 4 Hi h Efficiency HVAC Distribution System ,.o � �
<br /> ' opening area of not less than 4 square inches. Outdoor air inlets shall be located , 5a Efficient Water Heating 5a o.s o os � �'
<br /> Overhead Glazing(Skylights) 5b Efficient Water Heating 5b 1A � �
<br /> so as not to take air from within 10 feet of a plumbing vent opening, or an ' s� Efficient Water Heating 5c ,.s X �s
<br /> Component Width Height �
<br /> appliance vent outlet, or where it will pick up objectionable odors, fumes or sd Efficient Water Heatin 5d o.s ❑
<br /> flammable vapors. Where outdoor air supplies (window or wall ports) are separated oes���pt�o� Ref. U-factor Qt. Feet '°°h Feet �^°h Area uA 6 Renewable Electric Energy o.e '1200 kwh o.o
<br /> ', from fan locations by doors, adequate air flow shall be ensured by o.o o.00 Total Credits 3.50
<br /> 0.0 0.00 *Please refer to Table R406.2 for complete option descriptions
<br /> undercutting doors or installing grilles or transoms. Doors shall be undercut to a o.o o.00 �
<br /> ', min. of'/2" above the surface of the finished floor covering. o.o o.00 N
<br /> ' o.o o.00 � �
<br /> o.o o.00 � Q
<br /> Sum of Overhead Glazing Area and UA 0.0 0.00 � >
<br /> WHOLE HOUSE VENTILATION (Perscriptive) � Simple Heating S stem Size:Washin ton State �" �;
<br /> Overhead Glazing Area Weighted U=UA/Area 0.00 �/ +�
<br /> I RC SeC. M��JO7.3 a IICI WAC �J�-�J�-��JO7 � ��, This heatino svstem sizinq calculator is based on the Prescriotive Reauirements of the 2012 Washinaton State Energy Code(WSEC)and ACCA Li� �
<br /> ���, Manuals J and S.This calculator will calculate heatin loads oN .ACCA rocedures for sizin coolin s stems should be sed to determine coolin O �
<br /> Intermittent rescri tive Whole House Ventilation S stems and '°ads
<br /> P P Y , Tota/Sum of Fenestration Area and UA (for nearing system sizinq caicu�at�ons) 453.8 135.28 he lazin window and door ortion of this calculator assumes the installed lazin and door roducts have an area wei hted avera e U-factor of �
<br /> 9 9( ) P 9 9 p 9 9 �
<br /> provide Run Time 33% per Table M� 'rJO7.3.3�1Z�. � IIOU�2O MI(lUte ' 0.30. The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2012 WSEC. '/� w
<br /> Please fill out alI of the green drop-downs and boxes that are applicable to your project.As you make selections in the drop-downs for each section, v�
<br /> �Ufl tllTle fOr eaCll 4 F1OU�SeC�Illellt. �'�.. some values will be calculated for you.If you do not see the selection you need in the drop-down options,please call the WSU Energy Extension Z N
<br /> Program at(360)956-2042 for assistance.
<br /> Run-Time Percentage in Each 4-Hour Segment. ' � �+-- �
<br /> Factors P.o;e�r��fo,maf;o� _ �o�ra�t���ormat�o� � ^�, >
<br /> 20025f 2 STORY SFR MODERN 2 STORY � `V Q
<br /> 4(25%); 3(33%); 2(50%); 1.5(66%); 1.3(75%); 1.0(100%) ___'_"' _'____ - HAACKBROTHERS ..._._ � � �
<br /> Heating System Type: �no ome�synems O Heat Pump Q �
<br /> M1507.3.3 Mechanical ventilation rate. The whole-house mechanical roseede�a;,ed;�5�,���;o�s�o�ea�hsa��;o�,P,a�eyo�,���so,on�heword--,�s�N��;o�s�� ,- o
<br /> ventilation system shall provide outdoor air to each habitable space at DesiqnTemperature � a�
<br /> �. insiruc[ions Y ,s�y � r ��+�� �r °r'�'`r� �i���,�� Design Temperature Difference(dT) 47 W
<br /> continuous rate of not less than that determined in accordance with � � � i �
<br /> I AT=Indoor(�0 degrees)-OutCoor Desyn Temp
<br /> Tab�e M�5�7.3.3 ���: Area of Buildina �
<br /> �
<br /> ', Continuous Whole-House Mechanical Ventilation System Airflow Rate �°^d"�°^edF'°°�A�ea o
<br /> , � mstruc�;ons Conditioned Floor Area(sq ft) 2,002
<br /> , Reqmts >4-5 bedrooms (1501-3000sf) = 75cfmAirflow in CFM A�e,age�e����9►,e�gh� ConditionedVolume
<br /> '�.. .. instruceions Average Ceiling Height(ft) 8.0 16,016
<br /> ', Whole House Ventilation system using exhaust fans &window or wall ��aZ��9 a�a 000�s U-Factor X Area = UA
<br /> fresh air vents (M1507.3.4) ' ��st���t;o�s 0
<br /> 0.30 454 13620
<br /> --- __._.. ---__ _.__ .._.__---..___------------_ ..._--.- ----_. _-------- - SkVliahts U-Factor X Area = UA
<br /> �nstructions 0.50 � ---
<br /> Insulation Q
<br /> Attic U-Factor X Area = UA
<br /> ��s«�«�o�s �:w,��E�ti���� o.o2s i,o7z Z�.s� � f`
<br /> - - U o
<br /> Sing�e Rafter or Joist Vaulted Ceilings U-Factor X Area UA � .
<br /> instructions � ���"�'��� i�'�1-'�'T����1 No selection � ___ � r-
<br /> Above Grade Walls! Fe� �l U-Factor X Area UA L1_ _
<br /> i�structions i - -� �' 'jl°��I��f� °i��'������ 0.056 1,786 100.02 W U
<br /> K 2x Irttetfiee@�Yg
<br /> �P��,�-..w.-�` � W
<br /> Floors U-Factor X Area UA J w �
<br /> �nstrucuons .y.�,,,� � p,029 1,072 31.09 � �
<br /> H
<br /> Below Grade Walls� a Fio� �� U-Factor X Area UA �
<br /> insv�ciions � '�l� ��i�� t I�`I" ��i' 'i i"�" No selection � ___ �
<br /> W
<br /> Slab Below Grede� Frp ra�� F-Factor X Length UA =
<br /> mstruceions `�+ �'`� �I�� No selection � --- �
<br /> Slab on Grade�:�c�¢ore p F-Factor X Length UA
<br /> Instructions � .'�"'` �F.f ._.. �,I�.... ., .,��il� , �
<br /> No selection ---
<br /> Location of Ducts D�TE.
<br /> i�so-�z��o�s -.��._•-��� •, - -; Duct Leakage Coefficient
<br /> i.io
<br /> Sum of UA 295.18
<br /> 12/30/2018
<br /> Emelope Heat Load 13,873 Btu I Hour
<br /> Fj9ure 1, Sum ol UA X dT
<br /> Air Leakage Heat Load 8,130 etu I tiour 5 Gl�L E.
<br /> Volume X O.6 X AT X.018
<br /> "bpVe Gfa°e _ Building Design Heat Load 22,003 etu/Hour
<br /> � � _ ......._,,,,_,. Air Leakage�Envebpe Heat Loss �
<br /> y,,,����-��=-"' Building and Duct Heat Load 24,203 Btu/Hour
<br /> ""^�"'""r��n ix Oucfs in uncontlifioned space:Sum ol Bvikiing Heat Loss X 1.f 0
<br /> Duc(s in conddioned space:Sum o/Builtling Heat Loss X 1
<br /> Maximum Heat Equipment Output � 33,885 Btu i Hour
<br /> Buildmg antlOucf Heaf Loss X 1.401or Forced Air Fumace
<br /> Building end Ducf Heet Loss X 1.25 lor Heaf Pump 5 H E E T•
<br /> (07/01/f3j
<br /> A1 .2
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