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<br /> M1507.3 l3'hole-house mechanical ventilation system. � � �
<br /> • - Whole-house mechanical ventilation systems shall be designed � } '�
<br /> in accordance with Sections M15073.1 through M1507.3.3. �
<br /> � � ' I
<br /> , M1507.3.1 System design.Each dwelling unit or guestroom I �� �
<br /> � shall be equipped with a ventilation system complying with .�.�.'
<br /> . � • Section M15073.4,M1507.3.5,M15073.6 or M1507.3.7. j.,�.� ;�
<br /> Compliance is also permitted to be demonstrated through i � '��'�
<br /> ` — C.a' �� � ��'p�> J ` : compliance with the Intemational Mechanical Code or ,
<br /> ASIII�E Standazd 62.2. � ! ��
<br /> .. ".�.'o" '�' . . ,
<br /> � - 1YI1507 3 2 Control and operation
<br /> � i
<br /> � 1. Location of controls.Controls for all ventilation i `
<br /> I�'l1507.3.5 l'6'hole-house ventilation integrated with a � 2o B� �A O� ��
<br /> systems shall be readily accessible by the occupant. ' ;y.�
<br /> ' � 2. Instructions.Operating instructions for whole-house � ' %�
<br /> .:..
<br /> forced-air system.This section establishes minimum _
<br /> prescriptive requirements for whole-house ventilaiion � � � - h ovided to the occ p t
<br /> .i...�.._
<br /> systems integrated with forced-air ventilation systems.A i � � ���,! ventilation systems shall be pr ' u an � `�
<br /> 1 ��,,�.. ��' ,,{,,y �:a� ( by t e insfaller of the system.
<br /> system which meets all the requirements of this section shall . ������ , _���
<br /> f 2 a'
<br /> --��-�-�M-�--� �� 3. Local e�aust systems.Local e7chaust systems shall
<br /> h' ;
<br /> '"�'�..�.. f(� , be controlled by manual switches,dehumidistats, ? ,
<br /> be deemed to safisfy fhe requirements for a whole-house 1 . s :
<br /> ventIlarion system. � . . j , � � � �
<br /> • M1507.3.51 Integrated whole-house v e n t i l a t i o n ' � ' � timers,or other approved means � . ' `
<br /> � ��
<br /> � � 4. Continuous whole-house ventilation systems. '�'-�'"
<br /> { %� s Continuous whole-house ventilation systems shall ' '
<br /> systems.Integrated whole-house ventilation systems i � � a f � . `
<br /> I � , '���.�"(.��'���.� � � ,�
<br /> shall provide outdoor air at the rate calculated using � j , �, �
<br /> operate continuously and be equipped with an ,�
<br /> Section M1507.3.3.Integrated fozced-air ventilatio � � r : ��� �� .�
<br /> � � � � � I �i override control.A"fan on"switch shall be permitted
<br /> systems shall disiribute outdoor air to each habitable , � 1 i�'
<br /> ,� as an override control.Controls shall be capable of
<br /> � � y operating the ventilation system without energizmg �
<br /> space through the forced-air system ducts.Integrated �, , .�„ � � � � , (
<br /> forced-air ventilation systems shall have an outdoor air ( t ` ' ' � �, � ���3;
<br /> inlet duct connecting a ferminal element on the outside of s 6� r; � ; R� ntro ead lsible ,�
<br /> — t other ener consumin appliances A clearly v' ' �� ,� "
<br /> � � , �� � label shall be affixed t the co ls that r s
<br /> the building to the retum air prenum of the forced-air � p � � y� � _ - � G t Ventilatio e p rati g
<br /> , (
<br /> . . : � � --- --r- ��'� _ `'
<br /> " �� �'���..
<br /> system,at a pomt within 4 feet upstream of the au' I � � �
<br /> �. . , . , ,�, w., � ...� } .. .., �/..... .. .._ �..._ m..._... �. r� ructi ns)se f ; �
<br /> � ��� R
<br /> �,,,,� �-�.. ` . ' n se o e 'n .�,
<br /> � ..... ���( ��}�'; �
<br /> .���
<br /> � � �� .
<br /> � . � ' �
<br /> ins '�" ;
<br /> handler.'The outdooz air inlet duct connecfion to the I , e� � _ 5 _
<br /> � Intermittent whole house ventilation systems � ?'�-�:�
<br /> ! : i ;� _... L. �'.1a�.�� �,,��� �� � � ,
<br /> � ��� � Intermittent whole-house ventilation systems shall � i ; ��
<br /> return air stream shall be located upstream of the forced- � ��E \�.,��^:�. .. ,
<br /> air system blower and shall not be connected directly into ! , , ' : y ti� y� .
<br /> o the heat I � r � � ��� � � r�
<br /> � comply with the following: _�,,,�,�
<br /> a furnace cabinet to prevent thermal shock t 1 ; �f ` ' � 'C�'
<br /> S �'� �^�'.. s 5.1. They shall be capable of operating
<br /> exchanger•The system will be equipped with a motorized i .z ; � � . �}- 1 f �
<br /> � .. , , f o� � ..�!��4,(� � d ,� intermittently and continuously. 1 ' �
<br /> damper c o n n e c t e d t o t h e a u t o m a t i c ventilation control as , � � � . ,
<br /> .The re uired flow rate ' ..,1 y $ � t �� i3 � C�'y'"�����,�n` �� 5.2. T`h e y s h a l l h a v e c o n tr o l s c a p a b l e o f op e r a t i ng } € � �
<br /> ' specified in Section M1507.3.2 q I • j � . � a„ a r-"-'" C �
<br /> � ' ��` , the exhaust fans,forced-air system fans,or ' �
<br /> shaIl be verified by field testing with a flow hood or a _ ��=�i��� '� '
<br /> ; supply fans without energizing other energy- ; 1 s ��
<br /> ; # ` �-��( � -�-- .�
<br /> flow measuring station ` •. t
<br /> ! � ,� ;. m consumin g a p p1iances.5.3 i j # ��
<br /> 3.5.2 Ventilation duct insulation.All supp ly �� � �� ,,. y4 .. � t 5.3. T he system s ha ll be designed so that it can
<br /> �� � #
<br /> M1507 � �, ,
<br /> • ducts in the conditianed space shall be insulated to a I : _____ �, �`� '`�"�'' 0 __�����_,�._ __ „ .___ _
<br /> , � ased on the typ of �
<br /> operate automatically b e + � '
<br /> � � � s����..• . .. .. �;.:� ; . r� -
<br /> " � s =
<br /> control timer installed s
<br /> minnnum of R-4. � ,. ���� t� � 5 4
<br /> , `�'�
<br /> __________. . — � .Y �"�� 1 �� � � � . . T'he intermittent mechanical ventilation system �
<br /> � ���{ r�t --- � _ �
<br /> M1507.3.5.3 Outdoor air inlets.Inlets shall be screened � ra'�� \, , '.. � ....,�, shall operate at least one hour out of every
<br /> � �.:: , a : � � � :
<br /> or otherrvise protected from eniry by leaves or othez n . . • .�;�'� � ��� (� � � _ _ , f°ur. .
<br /> �`� . � ( 2�.`��3� �s � � `
<br /> material.Outdoor air inlets shall be located so as not to � , =� ��� 5.5. The system shall have a manual control and � ; �
<br /> • take a'u from the following areas: s , m t_�,(�.(- . I pM '���� automatic control,such as a 24-hour clock
<br /> than 10 feet from an appliance vent outlet, � r i y�'' � m '� ' (� EG � . ; � _ _ �
<br /> 1. Closer � � _ { t timer. � ?
<br /> unless such vent outlet is 3 feet above the outdoor air � � ` P � � ��"^�� s
<br /> � . ' { � d 5.6. ;
<br /> �
<br /> �j�j �i� �
<br /> inlet. �mes or � °' '��� � �( � / z -�'� � p � ' � s � .� . ��''�`�"���w �� � : 5.7. At the time of final inspection,the automatic ' � �
<br /> t� ! �j Q .' �� ; � : �' �'!/�tvl � � control shall be set to operate the whole-house � 3
<br /> 2. Where it will pick up objectionable odors, �� �f��� I'`� `� � /
<br /> • flamiriable vapors. �� � �� �
<br /> us or unsanit location. ��.. � ��'��C / : � : '' -_���
<br /> z �=� . �. { �/1j������l � fan according to the schedule used to calculate � r �
<br /> 3. A hazardo �5' . . . � ' . _ _
<br /> � 4. A ioom or space having any fuel=buming appliances � i _ `~" � _ } ��JJj���� the whole-house fan sizing.
<br /> ,
<br /> � �� � .��' � � i � .
<br /> . , ,. .' , . � :. . ,. � `� . .,..
<br /> ; . . . , �+ � ' ,. _
<br /> i �' \ — - _ + ; �Y r`���� - � � � 5.8. A label shall be affixed to the control that reads i
<br /> therein � � . t 1 t ( t
<br /> ., , � �, ' .,. � : . � - •.. :.
<br /> � . _
<br /> 5. Closer than 10 feet from a vent opening of a �, --�,T--� • ° • � � _"�'�� ...__ f i '�' Ven i a io e p ra i g
<br /> ' - - i t
<br /> �. � � .
<br /> lumbing drainage system unless the vent opening is ��- ' � ' ns c io
<br /> 1:,- �. ��� t f
<br /> � �°- � "Whole House ' n se o e n �
<br /> .: . , -
<br /> . . �..,`�
<br /> ..
<br /> v . .
<br /> P , , s �`"i ti
<br /> _ "_�...� ---- �
<br /> ; � " `Q tru. ns).��
<br /> �` ���` � ��:.�-��,c���� ��
<br /> ,�. ' �� � _ •. �7 • �. ���;.,'�.�' � __._�...,__._. ....__ 1 I1507.3.21 Operating instructions.Installers shall � � � �
<br /> at least 3 feet above the air inlet. � � . � :��� /'�' .. ����� . �. � � provide the manufacturer's installation,operating �S� � P
<br /> ,: �� _ �� ��� , ,�— . , �
<br /> 6. Attic,erawl spaces,or garages. � : 1 h
<br /> `�� . . � �ct p (�, �--�---�-s`""—'�.- �-.�!�f`� instructions,and a who e- ouse ventilation system � �� i
<br /> ,. � � .: f . , _ ra ion description.
<br /> . , � . .. �� � � , � i�� �--� : � � �.'r-�' CY ope t' � i
<br /> ,;. . . _ �f �
<br /> :• .:'
<br /> � �.�' '�", � � C � ��� �!� , ��� • -�--�' ��i`� . . whole- �i
<br /> :. �
<br /> � , , -. �
<br /> ^ .
<br /> .. . .. $ J.,, . �� M1507 3 3 Mechanical ventilation rate.The
<br /> I
<br /> . , ,�-' , .. � . � � . � {_
<br /> : :�.:� .. �� . �c�.. � �
<br /> � : __ � : ` _d. � �-����. ���!�,� " �•����� house mechanicat ventilation system shall provide �
<br /> � . outdoor air to each drvel ' � � �
<br /> ,, _. �� . �p� Img un continuous rate of ,
<br /> - � " �''� at determmed m accordance th T bl j
<br /> � . _ �" ����. �' �' :: � . . `�{`1��y,�� �' � ��
<br /> -
<br /> : . .. � . not less than th �vi a e
<br /> 1 _ iaa
<br /> � � _ � , . � �„� ..
<br /> , . :
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<br /> �„ _� M15073 3(1).
<br /> , � �a, ;; � �� � _ _ : � Exception•The whole house mechanical ventilation �
<br /> v 1 , r..
<br /> � J j
<br /> _ . � stem is
<br /> • ,_ ..,_...___. _:. ,
<br /> � � �
<br /> �_ �
<br /> � � _ _ � , . --� �� \ _ � sy ' permitted to operate intermittently where the � 4
<br /> , . � "" - . e . system has controls that enable operation for not less ' ;
<br /> • - - �„�� � ,_r, _r,_,.____ � fhan 25 percent of each 4-hour segment and the
<br /> . ;. . ,. . . v d T bl M150
<br /> ' ;
<br /> .
<br /> . . � . . . 33(1)is �
<br /> . . �;
<br /> �..
<br /> ��� � €
<br /> � � entilation rate prescribe in a e 7 �
<br /> ` . � r�',� ; ' ��+��'.. � . *� s multiplied by the factor determined in accordance with
<br /> �� �j _ � . . � �✓�4 I � ''. (1 Table IvI150733(2). ; �. 1
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