2007 California mechanical code : California Code of Regulations, Title 24, Part 4

418 Pages·2007·30.898 MB·English

by  California Building Standards Commission., International Conference of Building Officials., International Association of Plumbing and Mechanical Officials

-~~-- -~-...-------._- ---
2007
"~,
California
Mechanical
'\
-',
Code'~»
o
...,"\,.
J"h'.~"""',,,-
R~gulations
California Code of
Title 24, Part 4 '
'r,.
\
'h;;j
California Building \ \
~,....""
Standards Commission
\"?r'
o "",\0""
J
)
Based on 2006 Uniform MechanicaJ,Gode®
')'''-
}-
\,
H,,>'::I
CJ ''''''"",:",,.>.,,-~("\,..:T?:>,
.~\
)
.. ;'J~"':~
'\.."'-!"
',,-
''',.
EFFECTIVE -'\
''\
JANUARY 1, 2008
1\
(For Errata and Supplements, see History Note Appendix)
]
CopyrighfJ to2006UMC©Heldby
INTERNATIONALASSOCIATIONOFPLUMBINGAND MECHANICALOFFICIALS
5001EastPhiladelphiaStreet
Ontario,California91761-2816
CopyrighfJ toallCaliforniaStateProvisions
HeldBy
CALIFORNIABUILDING STANDARDS COMMISSION
2525NatomasParkDrive,Suite130
Sacramento,CA95833-2936
First Printing, May 1, 2007
Printed inThe United States
- ------------------------~~~~~~~~~~~~-~~--,
, PREFACE
8
This documentis the4thof12Parts of.the officipltriennialcompilationandpublicationofthe adoptions,
amendmentsandrepealofadministrativeregulationstoCaliforniaCodeofRegulations,Title24,alsoreferred
to as theCalifornia BuildingStandards Code. Part4is knownas the CaliforniaMechanical Code andincorpo
rates,by adoption, the 2006 edition of the Uniform Mechanical Code of the International Association of
PlumbingandMechanicalOfficialswiththeCaliforniaamendments.
TheCaliforniaBuildingStandardsCodeispublishedinitsentiretyeverythreeyearsbyorderoftheCalifornia
legislature,withsupplementspublishedininterveningyears. TheCalifornialegislaturedelegatedauthor
itytovariousStateagencies,boards,commissionsanddepartmentstocreatebuildingregulationstoimple
ment the State's statutes. These building regulations or standards, have the same force oflaw, and take
effect180days after their publicationunless otherwise stipulated. The California Building Standards Code
appliesto occupanciesintheStateofCaliforniaas annotated.
Acity, countyor city and countymayestablishmore restrictivebuilding standards reasonably necessary
becauseoflocalclimatic,geologicalortopographicalconditions. Findingsofthelocalcondition{s) andthe
adopted local building standard{s) must be filed with the California Building Standards Commission to
becomeeffectiveandmaynotbeeffectivesoonerthantheeffectivedateofthiseditionofCaliforniaBuilding
Standards Code. Local building standards that were adopted and applicable to previous editions of the
California Building Standards Code do not apply to this edition without appropriate adoption and the
requiredfiling.
Tofamiliarizeyourselfwiththeformatofthiscode,itissuggestedthatusersreviewthefollowingcontents:
o
• HowToDistinguishModelCodeLanguageFromCaliforniaAmendments
• MatrixAdoptionTables
Shouldyoufindpublication(e.g.,typographical)errorsorinconsistenciesinthiscodeorwishtooffercom
mentstowardimprovingitsfqrmat, pleaseaddressyourco:rrtmentsto:
CaliforniaBuildingStandards Commission
,2525NatomasParkDrive, Suite130
o Sacramento, CA 95833-2936
Phone: [phone] '
FAX: [phone]
WebPage: www.bsc.ca.gov
o
c)
iii
ACKNOWLEDGEMENT
The2007CaliforniaBuildingStandardsCode(Code)wasdevelopedthroughtheoutstandingcollaborative
efforts ofthe Department ofHousing and Community Development, the Division ofState Architect, the
Office ofthe StateFireMarshal, theOffice ofStatewideHealthPlanningandDevelopment, the California
EnergyCommission, andtheBuildingStandardsCommission(Commission).
ThiscollaborativeeffortincludedtheassistanceoftheCommission'sCodeAdvisoryCommitteesandmany
othervolunteersthatworkedtirelesslyto assisttheCommissionintheproductionofthisCode.
Members oftheBuildingStandards Commission
SecretaryRosarioMarin- Chair ChristinaJamison
IsamHasenin- Vice-Chair StephenJensen
JamesBarthman RobertPernell
KimBlackseth RichardSawhill
SusanDowty StevenWinkel
DavidWalls- ExecutiveDirector
ThomasMorrison- Deputy
ExecutiveDirector
ForquestionsonCaliforniastateagencyamendments;pleaserefertothecontactlistonthefollowingpage.
iv
2007 California Code.ofRegulations Title 24
CaliforniaAgency Information Contact List
California Energy Commission Department of Housing and Community
EnergyHotline [phone] Development
BuildingEfficiencyStandards Residential-Hotels,Motels,Apartments,
n ApplianceEfficiencyStandards Single-FaillilyDwellings ,.. ~[phone]
ComplianceManual/Forms PermanentStructuresinMobilehomeand
~/ SpecialOccupancyParks [phone]
California State Lands Commission Factory-BuiltHousing, Manufactured
MarineOilTerminals , [phone] HousingandCommercialModular.[phone]
MobileHomes- Permits& Inspections
California State Library
NorthernRegion [phone]
ConstructionStandards [phone]
SouthernRegion [phone]
.EmployeeHousingStandards [phone]
Corrections StandardsAuthority
LocalAdultJailStandards [phone]
Departmentof Water Resources
LocalJuvenileFacilityStandards [phone]
GrayWaterInstallationsStandards .[phone]
Department of ConsumerAffairs
DivisionoftheStateArchitect- Access
Acupuncture Board
Compliance
OfficeStandards [phone]
AccessComplianceStandards .....[phone]
DepartmentofConsumer~ffairs
Division ofthe StateArchitect- Structural
Board of Pharmacy
Safety .
PharmacyStandards (916)57~-7900
PublicSchoolsStandards [phone]
EssentialServicesBuilding
() DepartmentofConsumerAffairs- Bureau of
Standards [phone]
Barbering and Cosmetology
BarberandBeautyShopand
Division oftheStateArchitect- State Historical
CollegeStandards [phone]
Building Safety Board .
Department of ConsumerAffairs- Bureau of Alternati;reBuildingStandards ....[phone]
Home Furnishings and Thermal InSUlation
InsulationTestingStandards [phone] Office ofStatewide Health Planning and
Development
DepartmentofConsumerAffairs..: HospitalStandards [phone]
Structural Pest Control Board SkilledNursingFacilityStandards .[phone]
StructuralStandards [phone] ClinicStandards [phone]
o Permits [phone]
Departmentof ConsumerAffairs
Veterinary Medical Board Office ofthe State Fire Marshal
VeterinaryHospitalStandards '....[phone] CodeDevelopmentandAnalysis ..[phone]
FireSafetyStandards [phone]
Department of Food and Agriculture FireplaceStandards [phone]
Meat& PoultryPackingPlant DayCareCentersStandards [phone]
Standards [phone] ExitStandards [phone]
DairyStandards ' [phone]
Department of Health Services
Organiz:edCampsStandards [phone]
.PublicSwimmingPools . '
Standards [phone]
AsbestosStandards [phone]
v
UMC FOREWORD
NotAdoptedbyTheStateofCalifornia
The Uniform Mechanical Cod~ (UMC®) provides complete requirements for the installation and mainte
nanceofheating,ventilating, cooling, and refrigeration systems, while atthesametimeallowinglatitudefor
innovation and newtechnologies.
This code was first pUblished in 1967. With the publication ofthe 2003 edition ofthe Uniform Mechanical
CodfP, anothersignificant milestone was reached. Forthe first time in the history ofthe United States, a
mechanical code wasdevelopedthrough atrueconsensusprocess.The2006edition representsthemost
currentapproachesinthemechanicalfield and isthesecondeditiondevelopedundertheANSI Consensus
process. Contributionstothecontentofthiscodewere made byeverysegmentofthe builtindustry, includ
ing such diverse interests as consumers, enforcing authorities, installers/maintainers, insurance, labor,
manufacturers, research/standards/testing laboratories, special experts, and users.
ThepUblicatlargeisencouraged and invitedtoparticipatein IAPMO'sopen consensuscodedevelopment
process. This code is updated everythree years. Acode development timeline and other relevant infor
mation is available at IAPMO'swebsite atwww.iapmo.org.
The Uniform Mechanical Cod~ is dedicated to allthose who, in working to achieve "the ultimate mechan
ical code," have unselfishly devoted their time, effort, and personal funds to create and maintain this, the
finest mechanical code in existencetoday.
The 2006 Uniform MechanicalCod~ is supported bytheAmerican SocietyofSanitary Engineering (ASSE),
Mechanical Contractors Association of America (MCAA), Plumbing-Heating-Cooling Contractors National
Association (PHCC-NA),the UnitedAssociation (UA), andtheWorld PlumbingCouncil (WPC).Thepresence
ofthese logos, while reflecting support, does not imply any ownership ofthe copyright to the UMC which is
held exclusively by IAPMO. Further, the logos ofthese associations indicatesthe supportofIAPMO'sopen,
consensus process being usedto develop IAPMO'scodes and standards.
The addresses ofthe organizations are as follows:
ASSE- 901 Canterbury Road, SuiteA ~Westlake, Ohio44145-7201 •[phone]
MCAA- 1385 Piccard Drive· Rockville, Maryland 20850 •[phone]
PHCC-NA- PO Box6808·Falls Church, Virginia 22046· [phone]
UA- 901 MassachusettsAvenue NW •Washington, DC 20001 ·[phone]
WPC- WPC Secretary·c/o The Instituteof Plumbing •64 Station Lane •Hornchurch Essex
RM12 6NB •United Kingdom·[phone]
Code changes made to the original amalgamated code are marked in the
margins as follows.
.... An arrow denotes a deletion Avertical line denbtes a change
vi
TABLE OF CONTENTS
8
California MechanicalCode Preface iii
California BUildingStandards Commission ContactList : v
UMC Foreword : , ~ vi·
Howto DistinguishModeiCode Language from CaliforniaAmendments ,.viii
Related Publications and Services ix
California'MatrixAdoption Tables , xii
Chapter 1 California GeneralCode Provisions : 1
Chapter2 Definitions ~ 17
Chapter3 General Requirements 31
Chapter4 VentilationAirSupply ; 43
Chapter5 Exhaust Systems 59
Chapter6 Duct Systems' : : 93
Chapter7' CombustionAir , 107
Chapter8 Chimneys and Vents 111
Chapter9 Installation of Specific Equipment. '147
Chapter 10 Steam'and HotWater Boilers;., ; 167
Chapter 11 Refrigeration 175
Chapter 12 Hydronics ., ~ , 191
Chapter 13 Fuel Gas Piping ;201
Chapter 14 Process Piping .., ; ;263
Chapter 15 SolarSystems , , :; 267
(j Chapter 16 Stationary Fuel Cell Power Plants :~ 269
Chapter 17 Standards : : 271
APPf!Jn.dixChapter 1Administration 313
AppendixA Uniform Mechanical Codes Standards ; ; 323
Appendix B Proceduresto befollowed to place Gas Equipment in Operation 369
Appendix C Installation andTesting of Oil (Liquid) Fuel-Fired Equipment 371
Appendix D UnitConversion Tables 379
Index 385
History.NoteAppendix 395
o
o
vii
HOW TO DISTINGUISH MODEL CODE LANGUAGE
FROM CALIFORNIAAMENDMENTS
To distinguish between model code language and incorporated California amend
ments, includingexclusive Californiastandards California amendments will appear
initalics. Symbols inthe margins indicate the status ofcode changes asfollows:
[SFMJ This symbol identifies which state agency(s) have amended a section of
model code. For a complete listing ofstate agencies, refer to the Application
Sections within Chapter 1.
This symbol indicates that a change has been made to a California amend
II
ment.
*** This symbol indicates that model language has been deleted within a
California amendment.
>
This symbolindicates deletionofCalifornia language.
viii
8
RELATED PUBLICATIONS AND SERVICES
TheDocumentsListedareNotbythisReferenceAdoptedbyTheStateofCalifornia.
IAPMOprovidesavarietyofotherproductswhichareusefulforinspectors,buildingofficials,architects,engineers,
manufacturers,contractors,plumbers,andapprentices.
IAPMOHeadquartersDirectory
5001 EastPhiladelphiaStreet, Ontario, California91761-2816
PublicationOrderDeskPhone:800-85-IAPMO
PublicationToll Free Fax:877-85-CODES
E-mail: [email protected]
Website:www.iapmo.org
FreeCodeQuestionAnswers&Analysis:800-201-0335
Uniform Mechanical Code- 2006 Edition:
TheUniformMechanicalCodecontainscompleterequirementsfortheinstallationandmaintenanceof
heating, ventilating,cookingandrefrigerationsystems.
Uniform Mechanical Code Illustrated Training Manual:
Containstechnicaldiagramsandillustrationsthatdemonstratetheintentanduse oftheUMCAgreat
referencefor everyoneinvolvedinMechanicalHVACRdesignandinstallation.
Uniform Mechanical Code Study Guide:
TheStudyGuideisacompleteself-studycourseforlearningtheUMCAbighelpingettingreadyfor
acertificationexam!ThisbookistheperfectcomplementtotheUMCIllustratedTrainingManual.
o
CumulativeAnalysisof Uniform Mechanical Code Changes:
TheUMCCumulativeAnalysisisaveryusefultoolintargetingthelatestchangesbetweeneditionsof
the code.Itisanexcellentguidefor anyoneproposingaUMCchange.
Uniform Plumbing Code- 2006 Edition:
The Uniform Plumbing Code is the mostwidely adopted plumbing codein the world. The 2006 edi
tioncontains complete "turnkey" requirementsfor theinstallationandmaintenance ofplumbingsys
tems, allinoneeasytousebook.
Uniform Plumbing Code Illustrated Training Manual:
The UPC Illustrated Training Manual is an excellent reference for anyone involved in the plumbing
industry.Itcontainsanextensivedefinitionssectionandseveralhundredcomprehensivetechnicaldia
gramsandillustrations.Itservesasatextbook,anditalsoisusefulasavaluabletoolfo.rexplainingthe
intentanduse oftheCode.
Uniform Plumbing Code Study Guide:
This bookis the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a
completeself-studycourseforlearningtheUPCIthashundredsofquestions, generalpracticeexams,
andplumbingmath,pipesizingexercisesandfittingidentification.Abighelpingettingyoureadyfor
acertificationexam!
Uniform Plumbing CodeAnswer &Analysis Manual:
U/~
This increasing popular manual is the result of ongoing work by IAPMO's Answers & Analysis
Committee.Updatedannually,itcontainshundredsofquestionsandanswers.Manyofthesequestions
ariseinthe dailyadministration0 the code. .
CumulativeAnalysis of Uniform Plumbing Code Changes:
(j Anexcellentreferencefor learningandunderstandingplumbingcodechangesadoptedattheAnnual
EducationandBusinessConferences.Itisausefultoolforpreparingcodechangeproposals.
.ix
RELATED PUBLICATIONS AND SERVICES
TheDocumentsListedareNotbythisReferenceAdoptedbyTheStateofCalifornia.
Uniform Plumbing Code- Spanish Edition:
The UPC Spanish Edition was translated in response to numerous requests from jurisdictions with
largeSpanish-speakingpopulations.
Dwelling Requirements ofthe Uniform Plumbing Code:
ThisbookcontainstheUPCrequirementsthatapplytooneandtwofamily dwellingsonlyItsillustra
tions and photographs make it especially useful for combination dwelling inspectors and the do-it
yourselfer.
Uniform Swimming Pool, Spa, and HotTub Code:
Contains complete and current guidelines for piping systems serving these increasingly popular
amenities.
Uniform Solar Energy Code:
TheUniformSolarEnergyCodeisauniquedocumentthatprovidesacompletesetofregulationsand
guidelines that coverbothplumbing and mechanical systems inone "turnkey" package. The code is
idealfor usebyinspectors,jurisdictionsandtheinstallationindustry.
Drain Waste and Vent Calculator:
Aslide-rule style calculator provides quick and simple access to the fixture unit and sizing tables of
Chapter7oftheUPc.
Water Sizing Calculator:
Sizingwatersystemsbecomesamuchsimplertaskwiththeuseofthishandyslide-rulestylecalculator.
Natural Gas PipeSizing Calculator:
This Natural Gas Pipe Sizing Calculator is presented in an easy to use and read slide-rule format.
Designedfor systemswithasupplypressureofsixtoeightinchesofwatercolumn,allpipe capacities
are givenincubicfeetperhour.
Trailer Standards:
IAPMOhasdevelopedanumberofstandardsforspecialtyproductsusedinmanufacturedhomesand
recreationalvehicles.Thesestandardsareavailableindividually, ortheymaybepurchasedasaset.
Directoryof Listed Plumbing Products:
TheIAPMOListingProgramwasprimarilycreatedtobenefitthebuildingandplumbingofficialsthat
theproductsinstalledmeettheappropriatestandardsandcode.Foraproductto continuetobelisted,
unannounced inspections ofthe manufacturingfacilities verify continued compliance. This directory
containsinformationonseveralthousandIAPMO-listedplumbingproductsandisupdatedannually.
ICES·IAPMO Certification Evaluation Services:
Anindependent,thirdpartyCertificationsystemforjUrisdictionsto adoptandforindividualsto take
standardized, validated exams for over 100 different construction trade categories for Code
Administrators, Inspectors, PlanReviewers, Contractor and Journey level tradesmen, allbasedupon
commonlyutilized model codes. Custom certification and licensing exam creation to meet anyjuris
dictionsspecialneedsisavailable.
Education and Training Seminars:
IAPMO specializes in conducting training and education, including fulfilling continuing education
requirements,ontheUPCandUMCaswellasallofthemostcommonlyutilizedcodesintheConstruc
tionTrades.Specialseminarsonindustryorcodesubjectsareexpeditiouslycreatedanddeliveredupon
request. Pleasecalltoobtaintheseminarscheduleorto arrangefor acustomspecialseminar.
x