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<br /> IVI���IA�II�AL V��TILATIt��1 �,
<br /> Section M1507—Mechanical ventilation. �
<br /> Whole House Ventilation (Prescriptiv2) IRC Sec. M1507.3 & WAC 51-5�-15�7 �W� wos �W1 Q
<br /> M1507.1 General. Local exhaust and v�✓hole-hause rr�echanical ventilation
<br /> �'�, , ������_����`_�e'����,�+ ;�`���.'�� ,� .', � ':a ���-�ra��- �"����'��e'��".-��`��r'"���` �,��.�r��"�''�'
<br /> system� & equipment shali be designed in accordance with this section. �15T36 �" "�_�` " — — � -- -� � � MST3�
<br /> N11507.2 �ECIRCULATION of air. Exhaust air from bathrrns and toilet rms - � � ���-g,� � � �
<br /> shall not be re-circulated within a residence and shall be exhausted directly � � � 3x5 �, �1� D03 - ���`���� ��' � �
<br /> to outdoors. Exhaust air from bathrm� & toilet rrns shall not discharge into c`� � � Shower ` Cpk � � �
<br /> attic, crawlspace or other areas of the puilding. M�-��g � �- ��' z
<br /> � MST36 �
<br /> M1507.3 Whole-house mechanical ventilati�n sy�tem. -. °-
<br /> Whol2-house merh�nical ventiiation systems �hall be designed in accr�rd�ncz � ,N09 � � �-- ���i"1'1"1 � ���� �1`r�� woa � �
<br /> with Sections M1507.3.1 through M1507.3.3. - � Svf VTO Carpet Carpet � c� �
<br /> Section M1507.3 of thz high efficiency fan (maximum 0.35watts/cfim), not �' � -� 50�fm � �+ MST36 � � Q
<br /> � - -
<br /> in'terlocked with the furnacz fan. Ventilation systems using a furnace inclu�ling � 4 �� 1/2
<br /> an ECM motr�r are allawed, provided that they are controlled to operate at low � i ,� \ s° ��I c- �
<br /> s peed in ventilation onl y mode. � �� i � � �
<br /> M1507.3.1 System design. � i v y� � D11 �' � '
<br /> The whole-house ventilation sy�tem shall consist of one or more supply or � � �'�� �x6 �li MST36 �
<br /> 2xhaust fans, or a combination of such, �nd associated ciucts and controls. Locaf
<br /> �.;�
<br /> � exhaust or supply fans are permitted to serve as such a system. �utdoor air ducts � � � / D08 ��� - - �- ��'��`���'�l z
<br /> connected to the return side of an air handler shall be consider�d to provid� supply � � v -- 4 � ° � � r �
<br /> ventilation. � � ,� ooa � DIV �o;sp A-10 � � L � `n � �
<br /> M1507.3.2 System controls. � � O � 14r O � _J � � �-- Q � � � •�
<br /> 7he whole-house mechanical ventilatinn system shall be provided with controls � ,�' � , � � � '� � � � � �r �
<br /> oos Svf VTO �. a, z �-' r-
<br /> th�t enables rnanual override. � - � � � c� � ~ Q ►u � @1
<br /> M1507.3.3 Mechanical ventilation rate. '� - 36° ht. 1/2 wall __ O �! 50cfm � � a> Q Q r"'- } � .�'
<br /> The vvhole-house mzchanical ventilation systern shall provide outdoor air at a �� F,. oos _ � - D09 �" > 'n o � � -�
<br /> continunus rate of not less than that determined in accordance with Tahle � � 22x30A.A. 0 �',� o � cv �- �
<br /> � � � rn
<br /> � � 30"MW NDRM � � �� � �= �,
<br /> � M1507.3,3(1). � g�� � �� a-- � � �,
<br /> � wsuuws �; �, �, �
<br /> Exception: The tivhole-house me�hanical ventilation system is permitted to operate :� so � _ 3 � _ � �
<br /> intermittently where the sy�tem has controls that en�bie operation fior not less �����.+� �����, ooy � D01 SD �, � z
<br /> than 25-percent of each 4-haur segment and the ventilation rate prescribed in � , L�� �- ,� ,�,m�„ cc� �
<br /> Car et
<br /> , Table M1507.3.3(�) is multiplied by the factar determined in accordance with � 5�-6 1/2�� � � �,
<br /> Table N1'1507.3.3(2). i.c� was � i � W04
<br /> � � � �
<br /> WINDOI�1 OR�l�/aLL PORTS: IRC M1507.3.4.� Outdoor air shall be di�tributed W �'°�� -_--, a�
<br /> to each habitable room by individual outdoor air inlets. Individual room outdo�r V�ny� Dr erVT c`�n �
<br /> air inlets shall have a controllable and secure opening and be capable of a totai - `1��-��� make-up�ir o r- ����� � �,
<br /> o enin area ofi not less �han Q- s uare inches. Outdoor air iniets shall be I�cated MST36 �,
<br /> Car et
<br /> p � q � WHF VTO � � U �' � � e--
<br /> so as not to take air from Uvithin 10 feet of a plumbing vent opening, or an �` 45cfm,24hr timer ir'— �/ashe � � � � � �
<br /> appliance v2nt outlet, or where it will pick up objectionablz odars, furnes or "�" ��1 � 1 sone,3 air ch.lhr max W� F� oos � � � � � �
<br /> flammable vapors. Where outdoor air supplies (window or wall ports) ar� separated � ma;c.3.5watts/cfm � � �
<br /> from fan loc�tions by doors, adzquate �ir flow shall be ensured by MST3� ��} KM , � ,_ _ g , i i .A_ „ . � � � �,
<br /> r�4��"�`�������� .._r .: �`�` "�`,�. �.�"�'�-'��`�`�,��"�" >, .n� � :��'�`�� ���..�: .:s�.� � :� ,�':" "- ..�:���,�����`�����.����.°������ L
<br /> unclercLrtting doors or installing grilles or transoms. Doors �hall be undercut#o a `�� � m �.
<br /> min. of'/z" abov� tne surface of the finished floor covering. �VV1 w,o SW1 � c�l �.:
<br /> �
<br /> F--
<br /> � A-9 z �- o lLl
<br /> 15�_3�� 2� 17�_9�� � � `y w
<br /> WHC��� NC�U�� V��1TlLATI(�� (�'�rscri��iv�) 35' � �i w
<br /> IRC Sec. �l11507,3 and WAC 51-51-1507 �
<br /> ui
<br /> Intsrmittent prescriptive Whole House Ventilation Systems and DO NOT SCALc 7HEiE DRAWI�JGS a
<br /> provide Run Time 33% �er Table M150I.3.3(2). 1 hour 20 Minute 1lVritten dimensions �Nill have preference over scaled dimensions. w
<br /> run time for each 4 hour segment. o
<br /> Run-Time Percentage in Each 4-Hour �egment. �
<br /> Factors L����� `� �
<br /> 4(25%); 3(33%); 2(50%); 1.5(66%); 1.3(75%); 1 A(100°l0)
<br /> M1507.3.3 Mechanical ventilation rate. �he whole�house mechanical � 2x� �r�ail framing @ 16" oc � � �__�� �
<br /> v�ntilation syJtem shall provide outdoor air to each habitable space at 0 �x6 wall firaming @ 16" oc
<br /> continuous rate of nok less than that detzrmine�i in accordance with ��� 2x6 Shear Wa11, per engineer '� ��� '� �„„�
<br /> Table M1507.3.3 (1): � �
<br /> Continuous Whole-House Mechanical Ventilation System Ai�flow �a#e � w
<br /> Reqmi's >3 badrooms= 45cfm Airflow in CFM �hear U�Jalis, per schedule sheet ��1 � w
<br /> WINUOW SCHEDULE II- �
<br /> V�lhole House Ventilation system usiny exhaust fans &windaw �r wall NUNIBER LA�EL QTY SIZE V�l1D7H HcIGNT DE�CRIPTION � �
<br /> fresh air vents (M1507.3.4) W01 2030SH 1 2030SH 24 ° 36 " SINGLE HUNG
<br /> O �
<br /> �NO2 3Q36L� 1 3036LS 36 " 42 " LEFT �LIDIIVG � o v
<br /> DOOR SCHEDULE W03 4040LS 1 4040LS 48 " 48 " LEFT SLIDING � �- �
<br /> NUMBER LABEL QTY SIZE W1DTH HEIGHT DESCRIPTION THICKt�IESS W04 4050SH 1 4050SN �8 " 60 " SINGLE HUNG �
<br /> D01 1�68 1 1668 R IN 18 " 80 " HII°�1GED-DOOR PO4 1 3/8" W05 5040LS 1 5040LS 60 " 48 ° LcFT SLIDING w
<br /> D02 2468 1 2�68 R 28 " 80 " POCKE7-�OOR P0� 1 3/8" W06 4050SH 1 4050SH 48 " 60 " �INGLF HUNG =
<br /> D03 2468 1 2�68 L IN 28 " 80 " HINGED-DOOR �04 1 3/8° W07 4050SH 1 4050SH 48 ° 60 " SINGLE NUNG �
<br /> � D04 2868 1 2868 R EX 32 " 80 " EXT. HINGED-DOOR PO4 1 3/4° �N08 4050SH 1 40505H 48 " 60 " SINGLE NUNG
<br /> D05 3068 1 3068 L EX 36 " �0 " EXT. HINGED-GLASS 1 3/�" W09 2030SH 1 2030SH 24 " 36 " �INGLE NUNG
<br /> D06 5068 1 5068 L IN 60 ° 80 " SLIDER-DOOR PO4 1 3/8" Vi/10 2030SH 1 2030SH 24 " 3� " SINGLE NUNG D�T�:
<br /> D07 8070 1 8070 96 " 84 ° GARAGE-PANEL 1 3/4" �
<br /> D08 2468 � 2468 R IN 28 ° 80 " HINGED-DOOR f'04 1 3/8" 11/7/201�
<br /> D09 2668 3 2668 R IN 30 " 80 " HINGED-DOOR PO4 1 3/8" � /�
<br /> D10 3068 2 3068 R EX 36 ° 80 " EXT. HINGED-DOOR E21 1 3/4" �����.r��
<br /> D1� 2668 2 2668 L IN 30 " 80 " HlNGED-DOOR P0� 1 3/8" s�'f.� �+an#�g��,�"�",�, ...
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