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<br /> ERHAUSTSYSTEMS � �.
<br /> engincered or listed multi-specd or variublo-speed SU79.1Typelhoods.Extemelhoodjoints,scamsandpen- '
<br /> I conVols�utomatically operatc the exh�ust system tu etrations for'rype I hoals shttll be made with a continuous
<br /> muintt�in capmre and removal uf cooking clTluents ns extemal liquid-tiglrt welJ or bruze to the lowest outermost
<br /> icquired by�tiis scction. perimetcr of the hood.lntcmnl hoodjoints,senms,�x:nettn- �
<br /> tions,filter support frames,nnd ather nppenduges anached j
<br /> 51171 Where requ(red.A Typc 1 or Typc If hooJ sh•rll bc in- ���side the hood shall not be rcquired to be wcldeA or brazed �
<br /> stulled ut or above nll commercial cooking uppliunce;in accor- but shall be otherwise sealed to be grease tight �
<br /> dance with Sections 507.2.1 and 507.2.2.Whcre any couking �
<br /> appliance under a single hood requires n Type l hood,a Typc I Gxceptions:
<br /> hood shull he installed. Where a Type II hood is rcquirod, �i �, pencvations shall not be rcquin:d to be welded or �
<br /> Typc 1 or Typc 1[hiwcl shall be ins�ulled. brazed whcre seolal by devices tliut nrc listed for
<br /> ~ 507 21 Typc 1 houds:lype I hcwJs shall be installed where thc application.
<br /> I `cookingapplinncespruducegreascorsmoke,suchusoc.curs 2. Intcrnul welJing or brnzing of scams,joints,and
<br /> with griddles, fryers, broilers, ovene; ranges and wok penetrutionx of the haxl shall not be prohibited
<br /> �nnges. provideJ diat thejoint is formed smooth or ground
<br /> 507.2.2 Type Il huuds.7ype II hoods shall Ix inslalled so as to no�irap grcase,and is readily cleanable. �
<br /> where cookSng or Jishwashing applianccs prc�uce heat or gp�,�,2 Type Ii hoods.Joints,scnms and penetrations For ~
<br /> steam,and do not produce grense or Fmoke,such as steum- Tyr¢ll hoals shall be coiuWcted as set for�h in ChapMr 6, �
<br /> eis,keules,pnstn cookers and dishwnshing muchines. shall be sealcd on the interiorof the hood and shall provide a
<br /> Exceplions: smooth surface that is rcadily cleanable and wa�er tight.
<br /> L Under-couNervlype conunere:ial dishwnshing mn- 507.8 Cleaning and grease Qutlers.A haod shall be Jesigned �
<br /> chines. to provide for thorough cleuning oCthe entirc hood.Grcuse gut-
<br /> 2, A Type 11 ha�d is nol n:yuired forJishwnshers and lers shall drain to nn npproveJ collcc:lion receptacle Iha[is fab- �
<br /> poNvnshcis ihat.rc provided with heat andµ'aler �����«��dcsigncd nnd installed to allow nccexs for cleaning.
<br /> vapor eshaust systems that�ire suppiicd by the up• 507.9 Clearm�ces for 1�pe I hood.A Type I hood shall be in- �
<br /> pliancc manufac�urcr anJ aic instnlled in accoo- stalled with o clear:uice tu qombusdbles of not74gs thom 1�
<br /> Jancc wi�h Ihc manul'ucwrcr's instructions. inches(457 nun). �
<br /> 507.2.3 Domestic cnoking applinnces used for commcr- Exception: Clenrance sha1F Aot bc required trom gypsum �
<br /> cinl pm�puses. Domextic cooking �ippliunces �niliieJ for Wnllbourd attnched to noncombusGble xwetures provided
<br /> 1 commcrcialpurposesshallbcprovidcdwi�hTypclorType ���T�asmooth,clednable,nonaBso�bentnndnoncombustiblr.
<br /> ❑huoJsasrcquireJlbrtherypcof;ipplianccsandprocesses �»lterialisinstalledbetweenthehuodandthegypsumw�ll-
<br /> � in:iccordance wid�Seclions 507.2,507�.I anel 507.2.2. �a�d over an area extcnding not Icss than I B inches(d57
<br /> 507.2,4 Sulid fuel. Type I hcwds fnr use ovcr solid mm)in all Jirectim�s(rom the hocxl.
<br /> fuel-hurnin� cooking apptinnces xhall disch�u'ge to :m ex- 507.10 Hoods penetrating a ceilin�.Type[hoods or ponions
<br /> hnuat system thut is inJependent of uther exhuuxt s}•stemz. theieo(p:netrating a ceiling,wail or furred spuce shull comply
<br /> 5117.3 tue46urnbig eppliances. Whcre ven�cd fuel•bw'ning withall the.reyuircments of Section 506.3.10. , .. .:.:,, ..: �
<br /> oppliances urc lucnted in U�c same room or sp,ce as the boal, 507.11 Grease Nters.'1,�e 1 �iaxls shall be eymppeJ with�. . �
<br /> provisionssha416encidetoprevenuhehoodsystemfrominter- ��s�ed gre.ise fillers designed for d�e xpecific purpose.
<br /> fering with mmmil oper:uiun of lhe appli�mce vtnls. . Grcase-collecting equipmen[shull be proviJed with acecss Cnr .
<br /> 507.4'I'ypu 1 m:�lerials.'lypc 1 t�uuds xhall Uc construcicd of deuning.Thc lowest cJge of u greasc filter Icxaled ubove thc
<br /> stecinutlessihau0.043inchlL09mm)(No.IBMSG)inthick. cookingsurfaceshallbenotlessthun�heheightspecitiedinT�-
<br /> ncss,or s�ainless stccl not Icss�h.in 0.037 inch(0�)d ium)(No. blu 507.1 I. -
<br /> 20 MSG)in Ihickncss. � TABLE 607.11 ;> . �.
<br /> gp7,j lypc II hood mnlcriids.Typc II huods shnll be con- � MINIMUM DIS7ANCE BETWEEN THE LOWEST EDOE OP A
<br /> GREA3E FIITER AND THE COOKINO SURFACE OR THE ;
<br /> structed o(�teel nol less�han q.030 inch (0.7G min)(No. 22 HEATNO SURFACE , ,
<br /> Ci«EC)InllliCkllCtis,titUlilleti%titCClno[ICbtilh:In0.02A111Ch(O.bl � TyPEOFCOOKINa HORHTABWECAOKiNO
<br /> mm) (No.24 Gngc)in thickncss,co�)�tC(altcCls wCisllillg I101 APPLIANCEB SUNFACEUeeq i
<br /> Icss ih.m 24 ounccs per squarc I'uot(7.5 kg/m'),or of othcr ap• 0.5 •``
<br /> provcd m,U�rial:md gagc. Wiihoul cx�oscd tlume
<br /> 507.(Supporls.'Iypc 1 hoods sh�dl bc sccuicd in pincc by non- Es�o,cd tlanw:md bumcrs z '
<br /> ';�:'
<br /> combusti6lc supportti.All'lype 1 andTypc 11 hiwd supports 5}�nll frW�cd chnreonl und chnrbmil�y{x 3.5
<br /> bc adcquntc (or thc applicd load of�hc houd, tl�e unsuppo�tcd . . .
<br /> Juctwork,tbe efllucnt laading,and Ihe pua}ible weighl nf{xr- Por SI: I fuui=3�1a.8 mm:'� �.. . ..
<br /> sonncl worAing in or on the huod. 507.►1.i Criteria.Filters shall bc uFsuch sixe,typc and ar- '
<br /> 5079 liond joinls, seatns and penetralions. Hood join�s, rangcmen[uswillpennitthereyuiredquanliryofairtopass �� ��'
<br /> se;uns;mdpenetr:uionsshnllcomplywith5ectiuns50%.7.laud througlixuchunitsatmtexnotexcecJingthoseforwhichthe ;�
<br /> 51���� tilter or unit was designed or appinved.Filler units shnll ba;.�
<br /> � � 20031NTERNATIONAL MECHANICAL CODEm�•
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