NFPA 90AH-2015 Standard for the Installation of Air-Conditioning and Ventilating Systems Handbook.pdf

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1、NFPA90AStandard for the Installation of Air-Conditioning and Ventilating SystemsHandbook 20null 90ANFPA, 1 Batterymarch Park, Quincy, MA 02169-7471, USAAn nullternatinullanullnullnullnullannullStannullrnull nullnullninulltinullNFPA, 1 Batterymarch Park, nullincy, MA 021null-nullnullAn nullternatinul

2、lanullnulldenulland nullandardnullnullnullninulltinullNFPAnull90Anullandard nullnull the nullnullanullatinull null Air-nullnditinullinnulland nullentinulltinnullnullnullemnullnullndnullnull 2015 nullcnulld EditinullAnnnullated nully Anullan FranullrCopyright 2014National Fire Protection AssociationO

3、ne Batterymarch Park Quincynull nullssachusetts 021nullnull4null All rights resernullnull About this Handbook Editionnullis Pnull contains the complete 201null enulltion onull NFPA nullAnull Standard for the Installation of Air-Con-ditioning and Ventilating Systemsnull annotatenull to assist the rea

4、nullrnulls unnullrstannullng onull the stannullrnulls language annull the intent nullhinnull itnull nulle annotations are not part onull the NFPA nullannullrnull nullt pronullnullnull a nullluanulle commentary renullecting the nullenullnull enulllanationsnull annull insights onull authors annull con

5、nulltrinulltors selectenull null the NFPA nullsenull on their knonullenulle onull annull enullerience nullth the stannullrnullHow to Navigate Between the Text of the Standard and the AnnotationsNanullgate nulltnullen conull or stannullrnull tenull annull annotations null using hyperlinkenull icons a

6、nnull conull numnullrsnullnull nullile in conull or stannullrnull tenullnull click on hyperlinkenull s iconnull to the lenull onull the stannullrnull secnulltion to nanullgate to corresponnullng annotationsnull null Click on the hyperlinkenull annotatinull stannullrnull section numnullr 1null to ret

7、urn to prenullous stannullrnull sectionnull*Please note, only the sections featuring icons contain annotations.For longer nullocks onull annotationsnull it is recommennullnull that you enanulle the nullck arronull nullnctionalnullity in Acronulltnulls page nanullgation menunull nullich nullll also a

8、llonull you to return to the prenullous stannullnullrnull sectionnullHow to Ensure You Have the Most Up-to-date Version of the NFnullA Standardnulle NFPA nullannullrnull in the enulltion containenull hereinnull is current as onull the enullectinull nullte nullsnullignatenull at the time the stannull

9、rnull nulls issuenull null01nullnull nullis Handbook Edition nulles notnull honullnullrnull inclunull erratanull tentatinull interim amennullents nullnullsnull or nullrmal interpretations nullnullnull that may hanull nullen issuenull anuller the enullectinull nulltenull For all erratanull nullAsnull

10、 or Fnull that may hanull nullen issuenull since the enullectinull nulltenull or nullr any nenull enulltions that may hanull supersenullnull this enulltionnull please nullsit the nullocument nullnullrmation pagesnull link nullr the relenullnt NFPA nullannullrnull locatenull in the nullonulls null nu

11、llannullrnullnull section onull nullnullnullnullanullrgnull or sunullcrinull to the National Fire Conulls nullnullcripnulltion nullrnullce nullnullnullonullsonlinenullnullanullrgnullnullnullnullTANT NnullnullES ANnullnullSnullAnullEnull nullNnullnullnullnullNFnullAnullSTANnullnullS NnullnullE ANnull

12、nullSnullAnullEnullnull nullABnullnullY nullNnullnullnullnull THE USE null NFnullA S TANnullnullSNFPAconullsnull stannullrnullnull recommennullnull practicesnull annull guinulls nullNFPA nullannullrnullnullnull onull nullich the stannullrnull containenull herein is onenull are nullnulllopenull throu

13、gh a consensus stannullrnull nullnulllopment process appronullnull null the American National nullannullrnull nullstitutenull nullis process nullings together nulllunteers representing nullrienull nullenulloints annull interests to achienull consensus on nullre annull other sanullty issuesnull nulli

14、le the NFPA anullinisters the process annull estanullishes rules to promote nullirness in the nullnulllopment onull consensusnull it nulles not innullpennullntly testnull enullluatenull or nullrinull the accuracy onull any innullrmation or the sounnulless onull any nullnullments containenull in NFPA

15、 nullannullrnullnull nulle NFPA nullsclaims lianulllity nullr any personal innullrynull property or other nullmages onull any nanullture nullatsoenullrnull nullether specialnull innullrectnull consenullential or compensatorynull nullrectly or innullrectly resulting nullom the punullicationnull use o

16、null or reliance on NFPA nullannullrnullnull nulle NFPA also makes no guaranty or nullrranty as to the accuracy or completeness onull any innullrmation punullishenull hereinnull nulln issuing annull making NFPA nulltannullarnulls anullailanulllenull the NFPA is not unnullertaking to rennuller pronul

17、lnullessional or other sernullices nullor or on nullehalnull onull any person or entitynull Nor is the NFPA unnullertaking to pernullorm any nulluty onullenull nully any person or entity to someone elsenull Anyone using this stannullarnull shoulnull rely on his or her onulln innullepennullent nullun

18、ullgment ornull as appropriatenull seek the anullnullice onull a comnullpetent pronullessional in nulletermining the enullercise onull reasonanullle care in any ginullen circumstancesnull nulle NFPA has no ponullrnull nor nulles it unnullrtakenull to police or ennullrce compliance nullth the content

19、s onull NFPA nullannullrnullnull Nor nulles the NFPA listnull certinullnull testnull or inspect pronullctsnull nullsignsnull or installations nullr compliance nullth this stannullrnull Any certinullcation or other statement onull complinullance nullth the renullirements onull this stannullrnull shal

20、l not null attrinulltanulle to the NFPA annull is solely the responsinulllity onull the certinuller or maker onull the statementnullAnullnullnullNAnullNnullnullES ANnullnullSnullAnullEnull Updating of NFnullA Standards nullers onull NFPA conullsnull stannullrnullnull recommennullnull practicesnull a

21、nnull guinulls nullNFPA nullannullrnullnull shoulnull null anullre that these stannullrnull may null supersenullnull at any time null the issuance onull nenull enullnulltions or may null amennullnull nullom time to time through the issuance onull nullentatinull nullterim Amennullmentsnull An onullic

22、ial NFPA nullannullrnull at any point in time consists onull the current enulltion onull the stannullnullrnull together nullth any nullentatinull nullterim Amennullents annull any nullrata then in enullectnull null ornullr to nulltermine nullether a ginulln stannullrnull is the current enulltion ann

23、ull nullether it has nullen amennullnull through the issuance onull nullentatinull nullterim Amennullents or correctenull through the issuance onull nullratanull consult appropriate NFPA punullications such as the National Fire Conullsnullnullcription nullrnullcenull nullsit the NFPA nullnullite at

24、nullnullnullnullanullrgnull or contact the NFPA at the anullress listenull nulllonullnull nullterpretations of NFnullA Standards A statementnull nullritten or oralnull that is not processenull in accornullance nullith nullection null onull the nullegulations nullonullerning Committee Pronullects sha

25、ll not nulle consinullerenull the onullnullicial position onull NFPA or any onull its Committees annull shall not nulle consinullerenull to nullenull nor nulle relienull upon asnull a Formal nullnterpretationnullnulltentsnulle NFPA nulles not take any position nullth respect to the nulllinullty onul

26、l any patent rights renullrencenull innull relatenull tonull or assertenull in connection nullth an NFPA nullannullrnull nulle users onull NFPA nullannullrnull nullar the sole responsinulllity nullr nulltermining the nulllinullty onull any such patent rightsnull as nullll as the risk onull innulling

27、ement onull such rightsnull annull the NFPA nullsclaims lianulllity nullr the innullingement onull any patent resulting nullom the use onull or reliance on NFPA nullannullrnullnull NFPA anulleres to the policy onull the American National nullannullrnull nullstitute nullNnullnull regarnullng the incl

28、usion onull patents in American National nullannullrnull nullthe ANnull Patent Policynullnull annull herenull ginulls the nullllonullng notice pursuant to that policynull NOnullCnull nulle usernulls attention is callenull to the possinulllity that compliance nullth an NFPA nullannullrnull may renull

29、ire use onull an innullntion conullrenull null patent rightsnull NFPA takes no position as to the nulllinullty onull any such patent rights or as to nullether such patent rights constitute or inclunull essential patent claims unnullr the ANnull Patent Policynull nullnull in connection nullth the ANn

30、ull Patent Policynull a patent holnullr has nulllenull a statement onull nullllingness to grant licenses unnullr these rights on reasonanulle annull nonnullscriminatory terms annull connulltions to applinullcants nullsiring to onullain such a licensenull copies onull such nulllenull statements can n

31、ull onullainenull on renullestnull nullom NFPAnull For nullrther innullrmationnull contact the NFPA at the anullress listenull nulllonullnullnullws and nullgunulltions nullers onull NFPA nullannullrnull shoulnull consult applicanulle nullnullralnull statenull annull local lanull annull regulationsnu

32、ll NFPA nulles notnull null the punullication onull its conullsnull stannullrnullnull recommennullnull practicesnull annull guinullsnull intennull to urge action that is not in compliance nullth applicanulle lanullnull annull these stannullrnull may not null construenull as nulling sonull nullpnulli

33、ghtsNFPA nullannullrnull are copyrightenull null the NFPAnull nulley are manull anullilanulle nullr a nullnull nullriety onull nullth punullic annull prinullte usesnull nullese inclunull nullth usenull null renullrencenull in lanull annull regulationsnull annull use in prinullte selnullregulationnul

34、l stannullrnullnulltionnull annull the promotion onull sanull practices annull methonullnull By making these stannullrnull anullilanulle nullr use annull anullption null punullic authorities annull prinullte usersnull the NFPA nulles not nullinull any rights in copyright to these stannullrnullnull n

35、ulle onull NFPA nullannullrnull nullr regulatory purposes shoulnull null accomplishenull through anullption null renullrencenull nulle term nullnullption null renullrencenull means the citing onull titlenull enulltionnull annull punullishnulling innullrmation onlynull Any nullletionsnull anullitions

36、null annull changes nullsirenull null the anullpting authority shoulnull null notenull separately in the anullpting instrumentnull null ornullr to assist NFPA in nullllonullng the uses manull onull its stannullrnullnull anullpting authorities are renullestenull to notinull the NFPA nullttentionnull

37、nullcretarynull nullannullrnull Councilnull in nulliting onull such usenull For technical assistance annull nullestions connullcerning anullption onull NFPA nullannullrnullnull contact NFPA at the anullress nulllonullnull For Further nullfornulltion Questions or other communications relating to NFPA

38、 nulltannullarnulls annull all renulluests nullor innullormation on NFPA procenullures gonullerning its conulles annull stannullarnulls nullenullelopment processnull inclunulling innullormanulltion on the procenullures nullor renulluesting Formal nullnterpretationsnull nullor proposing nullentatinul

39、le nullnterim Amennullmentsnull annull nullor proposing renullisions to NFPA nulltannullarnulls nulluring regular renullision cyclesnull shoulnull nulle sent to NFPA heanullnulluartersnull anullnullressenull to the attention onull the nullecretarynull nulltannullarnulls Councilnull NFPAnull 1 Batter

40、ymarch Parknull Quincynull nullA 021nullnullnullnull4null1null emailnull stnullsnullanullminnullnnullpanullorgnullFor more innullrmation anullut NFPAnull nullsit the NFPA nullnullite at nullnullnullnullanullrgnull nullnullnullTANT NnullnullES ANnullnullSnullAnullEnull nullNnullnullnullnull THE HANnu

41、llnull nullEnullTnullNNotinull and nullsnullainullr nullnnullrning nullabinulltnullPunullication onull this Handbook Edition is nullr the purpose onull circulating innullrmation annull opinion among those concernenull nullr nullre annull electrical sanullty annull relatenull sunullectsnull nullile e

42、nullry enullort has nullen manull to achienull a nullrk onull high nullalitynull neither the NFPAnor the contrinulltors to this Handbook Edition guarantee the accuracy or completeness onull or assume any lianulllity in connecnulltion nullth the innullrmation annull opinions containenull in this Hand

43、book Editionnull nulle NFPA annull the contrinulltors shall in no enullnt null lianulle nullr any personal innullrynull propertynull or other nullmages onull any nature nullatsoenullrnull nullether specialnull innullrectnull consenullentialnull or compensatorynull nullrectly or innullrectly resultin

44、g nullom the punullicationnull use onull or reliance upon this Handbook Editionnullnullis Handbook Edition is punullishenull nullth the unnullrstannullng that the NFPA annull the contrinullnulltors to this Handbook Edition are supplying innullrmation annull opinion nullt are not attempting to rennul

45、lr engineering or other pronullssional sernullcesnull null such sernullces are renullirenull the assistance onull an appropriate pronullssional shoulnull null soughtnullNFPA conullsnull stannullrnullnull recommennullnull practicesnull annull guinulls nullNFPA nullannullrnullnullnull inclunulling the

46、 NFPA nullannullrnull that is the sunullect onull this Handbook Editionnull are manull anullilanulle nullr use sunullect to nullportant Notices annull nullsclaimers Concerning NFPA nullannullrnullnull nullich are separately nullokmarkenull annull nullenullnulle in this Handbook Editionnull annull nu

47、llich can also null nullenullnull at nullnull.nfnull.orgnullisclaimers nullNotinull nullnnullrning nullterpretations nullntained in the AnnotationsNFPA conullsnull stannullrnullnull recommennullnull practicesnull annull guinulls nullNFPA nullannullrnullnullnull inclunullng the NFPA nullannullrnull t

48、hat is the sunullect onull this Handbook Edition are nullnulllopenull in accornullnce nullth the punullishenull procenullres onull the NFPA null technical committees comprisenull onull nulllunteers nullanull nullom a nulloanull array onull relenullnt interestsnull null this Handbook Edition the tenu

49、ll onull the NFPA nullannullrnull is accompanienull nullth annotations pronullnullng enulllanation annull commentary on the meaning annull intent onull the nullannullrnull nulle annotations containenull in this Handbook Edition are not a part onull the NFPA nullannullrnull annull null not constitute Formal nullterpretations onull the NFPA nullhich can null onullainenull only through renullests processenull null the responsinulle technical committees in accornullnce nullth the punullishenull procenullres onull the NFPAnull nulle annotationsnull therenullrenull solely renullect th