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MDACC Project No. XX-XXXX MDACC PROJECT NAME A/E Name Issue Description A/E Project No. Month !! !!!!

SECTION 23 81 26 DX SPLIT SYSTEM AIR CONDITIONERS

PART 1 - GENERAL

!." RE#ATED DOC$MENT%

A. Dra&in's an( 'enera) pro*isions o+ the Contract inc)u(in' ,enera) Con(itions an( Di*ision!" %peci+ication %ections app) to this %ection.

. %peci+ications throu'hout a)) Di*isions o+ the Project Manua) are (irect) app)ica )e to this%ection an( this %ection is (irect) app)ica )e to them.

!.0 %$MMAR1

A. Pro*i(e sp)it s stem air con(itionin' s stem consistin' o+ in(oor air han()in'/+an coi) unit2s3out(oor con(ensin' unit2s3 re+ri'erant pipin' +ittin's *a)*es an( accessories an( contro)s.

. Per+orm a)) 4or5 re6uire( to pro*i(e an( insta)) the +actor assem )e( sp)it-s stem air-con(itionin' an( / or heat-pump s stem re+ri'erant pipin' *a)*es +i)ters (riers an( anre+ri'erant specia)ties e6uipment such as suction accumu)ators site ')ass recei*ersstrainers etc. as speci+ie( in this speci+ication in(icate( or note( on the O&ner7s ContractDocuments &ith supp)ementar items necessar +or proper insta))ation an( testin' an(operation o+ the unit2s3.

!.8 RE9ERENCE %TANDARD%

A. The )atest pu )ishe( e(ition o+ a re+erence sha)) e app)ica )e to this Project un)ess i(enti+ie( a speci+ic e(ition (ate.

. A)) re+erence amen(ments a(opte( prior to the e++ecti*e (ate o+ this Contract sha)) eapp)ica )e to this Project.

C. A)) materia)s insta))ation an( &or5manship sha)) comp) &ith the app)ica )e re6uirements an(stan(ar(s a((resse( &ithin the +o))o&in' re+erences:

". AN%I/AMCA %tan(ar( 0!;-"0 - Ener' E++icienc C)assi+ication +or 9ans.

0. AN%I/ARI

>. AN%I/ARI 0?! -%oun( Ratin' o+ Out(oor $nitar E6uipment.

?. AN%I/ARI 8>; - Commercia) an( In(ustria) $nitar Air-Con(itionin' Con(ensin' $nit2s3..

@. AN%I/ARI ;!!-0!!! aria )e Capacit Positi*e Disp)acement Re+ri'erant Compressorsan( Compressor $nit2s3. +or Air Con(itioners an( =eat Pump App)ications.

B. AN%I/A%=RAE B!." - Ener' %tan(ar( +or ui)(in's E cept #o&-Rise Resi(entia).ui)(in's.

The $ni*ersit o+ Teas DX %P#IT %1%TEM AIR CONDITIONER%MD An(erson Cancer Center 08 @" 0>M%!

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"!. A%=RAE "; - %a+et Co(e +or Mechanica) Re+ri'eration.

"". NEMA M, " - Motors an( ,enerators.

"0. N9PA ?! Nationa) E)ectrica) Co(e

"8. A%TM 0@! - %eam)ess Copper Tu e +or Air Con(itionin' an( Re+ri'eration 9ie)(%er*ice.

". A4% A;.@ - %peci+ication +or ra in' 9i))er Meta).

"?. A%ME 8".; - Re+ri'eration Pipin'.

"@. %MACNA = AC Duct Construction %tan(ar(s Meta) an( 9)e i )e.

!.< $A#IT1 A%%$RANCE

A. Manu+acturer ua)i+ications: Compan specia)i in' in manu+acturin' the pro(ucts speci+ie( inthis %ection &ith minimum three 283 ears (ocumente( e perience &ho issues comp)etecata)o' (ata on tota) pro(uct.

. Pro*i(e capacit ratin's &ith ARI certi+ication. Ener' E++icienc Ratin' 2EER3 an( Coe++iciento+ Per+ormance 2COP3 not )ess than prescri e( A%=RAE B!." &hen use( in com ination&ith compressors an( e*aporator coi)s &hen teste( in accor(ance &ith ARI %tan(ar(s.

C. Insu)ation sha)) e a +)e i )e c)ose(-ce)) e)astomeric pipe insu)ation AP Arma+)e AC Acco+)e . A(hesi*e sha)) e Arma+)e ;0! ;0! )ac5 or ;0! # A(hesi*e. The insu)ationmust con+orm to A%TM C;8< ,ra(e " T pe an( sha)) ha*e a ma imum therma) con(ucti*ito+ !.0? tu-in./h-+t0-F9 at a ?;F9 mean temperature as teste( in accor(ance &ith A%TM C"?? or A%TM C ;"@.

D. Insu)ation materia)s sha)) ha*e a +)ame-sprea( in(e o+ )ess than 0; an( a smo5e-(e*e)ope(in(e o+ )ess than ;! as teste( in accor(ance &ith A%TM E @

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0. Inc)u(e manu+acturerGs insta)) insta))ation instructions.

8. Pro*i(e operation an( maintenance manua).

M%!

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!.0 MAN$9ACT$RER%

A. American %tan(ar(

. Trane

C. 1or5

D. Dai5in / Mc ua

!.8 AIR =AND#IN, / 9AN COI# $NIT

A. 9a ricate( e terior unit casin' sha)) e constructe( &ith minimum o+ "@ 'au'e 'a)*ani e(stee) painte( &ith epo ase( ename) paint. Pro*i(e co)or chart +or co)or se)ection

Architect.

. A)) are to e (ou )e &a)) &ith a minimum 0 inch micro ia) resistant an( c)eana )e +oaminsu)ation )iner &ith an R *a)ue o+ "0 or 'reater. $nit access pane)s must e remo*a )e.

C. 9a ricate +an (ec5 o+ 'a)*ani e( stee).

D. Primar Drain Pan:

". $nit2s3 sha)) ha*e a +ire retar(ant c)ose( ce)) +oam insu)ate( rust-inhi itin' IA stain)essstee) (rain pan across the +u)) &i(th o+ the unit e ten(in' +rom the coo)in' coi) to the en( o+ the unit.

0. Drain connection sha)) e minimum ?/@-inch outsi(e (iameter copper construction.

8. Arran'e coi) an( (rain pan connections on the si(e o+ the unit as sho&n on the Dra&in's.

E. Each unit sha)) e pro*i(e( &ith inte'ra) mountin' rac5ets a(e6uate to support the unit7s&ei'ht.

9. Each unit sha)) e pro*i(e( &ith a one 2"3 inch (ischar'e an( in)et (uct co))ar.

,. 9urnish access (oors as re6uire( to ser*ice a)) e)ements o+ the unit +rom each si(e o+ the unitnot +rom the ottom.

=. 9an2s3 sha)) e (irect (ri*e &ith centri+u'a) sin')e &i(th &hee) mounte( on *i ration iso)ators.

I. 9an &hee) (esi'n must meet 9an E++icienc ,ra(e re6uirements an( teste( an( certi+ie( inaccor(ance &ith the re6uirements o+ AN%I/AMCA %tan(ar( 0!;-"0.

J. 9an motors that are " hp or )ess sha)) e E)ectronica)) Commutate( Motor 2ECM3 motor &ithan E)ectronic %pee( Contro) 2E%C3 mo(u)e. 9an motors 'reater than " hp sha)) e three-phase suita )e +or aria )e %pee( Dri*e 2 9D3 ser*ice in tota) comp)iance &ith %ection 0! !;"8.

!.< COI#%

A. Coi)s sha)) e comprise( o+ a)uminum +ins mechanica)) on(e( to copper tu es. I+ thecoo)in' coi)s are use( to coo) mi e( air 2outsi(e air an( return air3 the coi) sha)) e comprise(o+ copper +ins mechanica)) on(e( to copper tu es.

. Test a)) coi)s +or ma imum s stem (esi'n &or5in' pressure an( or static pressure ase( onthe t pe o+ re+ri'erant ein' use(.

The $ni*ersit o+ Teas DX %P#IT %1%TEM AIR CONDITIONER%MD An(erson Cancer Center 08 @" 0>M%!

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C. =eatin' an( coo)in' coi)s sha)) e si e( as re6uire( to meet or e cee( in(ustr stan(ar(scapacities an( notes on the Dra&in's.

!.; AIR COO#ED CONDEN%IN, $NIT%

A. Pro*i(e air coo)e( con(ensin' units as sche(u)e(. $nits sha)) e se)+-containe( pac5a'e(+actor assem )e( an( pre-&ire( suita )e +or out(oor use consistin' o+ ca inet compressorscon(ensin' coi) an( +ans inte'ra) su -coo)in' coi) contro)s )i6ui( recei*er an( screens.

. Pro*i(e corrosion resistant materia)s +or unit parts &hich come in contact &ith re+ri'erant.

C. Pro*i(e timer con(uits to pre*ent rapi( c c)in' o+ compressor.

D. 9a ricate ca inet +rom 'a)*ani e( stee) e6uippe( &ith remo*a )e access (oors or pane)s&ith 6uic5 +asteners. The ca inet an( +ramin' sha)) e protecte( +rom en*ironmenta)e)ements usin' a po&(er coat or epo paint +inish capa )e o+ &ithstan(in' ;!!-hour sa)tspra e posure per A%TM ""?.

E. Compressor: =ermetica)) sea)e( scro)) &ith capacit mo(u)ationK or semi-hermeticK t pe&ith positi*e )u rication cran5 case heater un-)oa(er +or capacit mo(u)ation motor o*er )oa( protection ser*ice *a)*es +i)ter (rier suction an( (ischar'e *a)*es &ith 'au'e portsan( hi'h an( )o& pressure sa+et contro)s.

9. Con(enser:

". Coi)s sha)) e ma(e +rom seam)ess copper tu in' &ith mechanica)) on(e( a)uminum+ins an( capa )e o+ &ithstan(in' ;!!-hour sa)t spra e posure per A%TM ""?.

0. Pro*i(e con(enser +ans &hich (ischar'e *ertica)) an( that ha*e (irect (ri*e +ansresi)ient) mounte( &ith 'uar( an( motor.

,. Pro*i(e unit &ith hi'h an( )o& pressure cutouts +or compressor non-rec c)in' pump (o&nreset re)a an( oi) pressure sa+et contro) 2? "/0 ton units an( )ar'er3.

=. Pro*i(e anti-short c c)e timer +or )oss o+ po&er con(itions to protect the compressor.

I. #o& suction pressure cut out s&itch to re(uce pro a i)it o+ pu))in' non con(ensa )e 'ases intothe re+ri'erant s stem.

NOTE TO A/E ADD THIS SENTENCE IF THE APPLICATION AND ASHRAE ZONE MINIMUM TEMPERATURES ISAPPROPRIATE FOR THIS REQUIREMENT; PRO!IDE "ITH CONTROLS TO PERMIT OPERATION DO"N TO #DEGREE F AM$IENT TEMPERATURE AT MINIMUM COMPRESSOR LOAD%&

!.> PIPIN,

A. Copper Tu e an( 9ittin's:

". Dra&n-Temper Copper Tu e per A%TM 0@! T pe ACR c)ean (r an( cappe(.

0. Annea)e(-Temper Copper Tu e per A%TM 0@! Tpe ACR c)ean (r an( cappe(. Annea)e( copper tu in' sha)) not e use( +or pipin' )ar'er than !.>0; O.D.

8. 4rou'ht-Copper 9ittin's: A%ME ">.00.

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!.? 9I#TER %ECTION:

A. Re+er to %ection 08

A. Coor(inate )a out an( insta))ation o+ re+ri'erant pipin' an( pipin' suspension an( supports stem components &ith other construction tra(es inc)u(in' )i'ht +i tures = AC (ucts an(e6uipment +ire-suppression-s stem pipin' e6uipment components an( +ire an(/or smo5epartition assem )ies.

". Coor(inate pipe s)ee*e insta))ations throu'h &a)) or +oun(ation penetrations.

0. Coor(inate an( *eri+ core ores +or con(uit an( pipe s)ee*e insta))ations on e istin'+aci)ities to prec)u(e cuttin' re ar in the concrete +)oor or con(uit supporte( (irect) on the ottom o+ theconcrete +)oor.

. eri+ the proper s)ee*e penetration (etai) is ein' app)ie( prior to core orin' or (ri))in' +or +ire an( or smo5e &a)) partitions an( +)oors.

C. Assure re+ri'erant pipin' *a)*es an( specia)t items are stampe( or certi+ie( to meetre+ri'erant (esi'n pressures +or the +o))o&in' re+ri'erants.

". %e)ect pipe +ittin's an( components that ha*e (esi'n pressure ratin's per A%=RAE ";ut not )ess than the +o))o&in' s stem (esi'n pressures:

Re+ri'erant T pe #o& %i(e2psi'3

=i'h %i(e2psi'3

R-"8

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8. Pro*i(e su++icient access space an( insta)) re+ri'erant *a)*es strainers an( (riers at ahei'ht that is easi) accessi )e +or maintenance.

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i. 4here permitte( the A/E or O&ner so+t copper tu in' sha)) e +astene( to theui)(in' structure &ith $nistrut ' t pe supports $nistrut ' t pe c)amps an( cushioninserts. C)amps sha)) not e space( 'reater than