23 05 93.pdf

Ti nker AFB, OK TAFB Techni cal Spr ci f i cat i ons 2019

SECTI ON 23 05 93

TESTI NG, ADJUSTI NG, AND BALANCI NG FOR HVAC

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

ACOUSTI CAL SOCI ETY OF AMERI CA ( ASA)

ASA S1. 11 PART 1 ( 2014) Amer i can Nat i onal St andar d El ect r oacoust i cs – Oct ave- Band and Fr act i onal - Oct ave- Band Fi l t er s – Par t 1:

Specifications

ASA S1. 4 ( 1983; Amendment 1985; R 2006) Speci f i cat i on f or Sound Level Met er s ( ASA 47)

AMERI CAN SOCI ETY OF HEATI NG, REFRI GERATI NG AND AI R- CONDI TI ONI NG

ENGI NEERS ( ASHRAE)

ASHRAE HVAC APP I P HDBK ( 2011) HVAC Appl i cat i ons Handbook, I - P Edition

ASHRAE HVAC APP SI HDBK ( 2015) HVAC Appl i cat i ons Handbook, SI Edition

ASSOCI ATED AI R BALANCE COUNCI L ( AABC)

AABC MN- 1 ( 2002; 6t h ed) Nat i onal St andar ds f or Tot al Syst em Bal ance

AABC MN- 4 ( 1996) Test and Bal ance Pr ocedur es

NATI ONAL ENVI RONMENTAL BALANCI NG BUREAU ( NEBB)

NEBB MASV ( 2006) Pr ocedur al St andar ds f or Measur ement s and Assessment of Sound and Vibration

NEBB PROCEDURAL STANDARDS ( 2005) Pr ocedur al St andar ds f or TAB ( Test i ng, Adj ust i ng and Bal anci ng) Envi r onment al Syst ems

SHEET METAL AND AI R CONDI TI ONI NG CONTRACTORS' NATI ONAL ASSOCI ATI ON

(SMACNA)

SMACNA 1780 ( 2002) HVAC Syst ems - Test i ng, Adj ust i ng and Bal anci ng, 3r d Edi t i on

SMACNA 1858 ( 2004) HVAC Sound And Vi br at i on Manual - Fi r st Edi t i on

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SMACNA 1972 CD ( 2012) HVAC Ai r Duct Leakage Test Manual - 2nd Edi t i on

1. 2 DEFINITIONS

a. AABC: Associ at ed Ai r Bal ance Counci l

b. COTR: Cont r act i ng Of f i cer ' s Techni cal Repr esent at i ve

c. DALT: Duct ai r l eakage t est

d. DALT' d: Duct ai r l eakage t est ed

e. HVAC: Heat i ng, vent i l at i ng, and ai r condi t i oni ng; or heat i ng, vent i l at i ng, and cool i ng f . NEBB: Nat i onal Envi r onment al Bal anci ng Bur eau

g. Out - of - t ol er ance dat a: Per t ai ns onl y t o f i el d accept ance t est i ng of Fi nal DALT or TAB r epor t . When appl i ed t o DALT wor k, t hi s phase means When appl i ed t o TAB wor k t hi s phase means " a measur ement t aken dur i ng TAB f i el d accept ance t est i ng whi ch does not f al l wi t hi n t he r ange of pl us 5 t o mi nus 5 per cent of t he or i gi nal measur ement r epor t ed on t he TAB Repor t f or a speci f i c par amet er . "

h. Season of maxi mum heat i ng l oad: The t i me of year when t he out door t emper at ur e at t he pr oj ect s i t e r emai ns wi t hi n pl us or mi nus 30 degr ees Fahr enhei t of t he pr oj ect s i t e' s wi nt er out door desi gn t emper at ur e, t hr oughout t he per i od of TAB dat a r ecor di ng.

i . Season of maxi mum cool i ng l oad: The t i me of year when t he out door t emper at ur e at t he pr oj ect s i t e r emai ns wi t hi n pl us or mi nus 5 degr ees Fahr enhei t of t he pr oj ect s i t e' s summer out door desi gn t emper at ur e, t hr oughout t he per i od of TAB dat a r ecor di ng.

j . Season 1, Season 2: Dependi ng upon when t he pr oj ect HVAC i s compl et ed and r eady f or TAB, Season 1 i s def i ned, t her eby def i ni ng Season 2.

Season 1 coul d be t he season of maxi mum heat i ng l oad, or t he season of maxi mum cool i ng l oad.

k. Sound measur ement s t er mi nol ogy: Def i ned i n AABC MN- 1, NEBB MASV, or

SMACNA 1858 ( TABB) .

l . TAB: Test i ng, adj ust i ng, and bal anci ng ( of HVAC syst ems)

m. TAB' d: HVAC Test i ng/ Adj ust i ng/ Bal anci ng pr ocedur es per f or med

n. TAB Agency: TAB Fi r m r . TABB: Test i ng Adj ust i ng and Bal anci ng Bur eau

1. 2. 1 Si mi l ar Ter ms

I n some i nst ances, t er mi nol ogy di f f er s bet ween t he Cont r act and t he TAB St andar d pr i mar i l y because t he i nt ent of t hi s Sect i on i s t o use t he i ndust r y st andar ds speci f i ed, al ong wi t h addi t i onal r equi r ement s l i s t ed her ei n t o pr oduce opt i mal r esul t s.

The f ol l owi ng t abl e of s i mi l ar t er ms i s pr ovi ded f or c l ar i f i cat i on onl y.

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Cont r act r equi r ement s t ake pr ecedent over t he cor r espondi ng AABC, NEBB, or TABB r equi r ement s wher e di f f er ences exi st .

SI MI LAR TERMS

Cont r act Ter m AABC Ter m NEBB Ter m TABB Ter m

TAB St andar d Nat i onal St andar ds f or Test i ng and Bal anci ng Heat i ng, Vent i l at i ng, and Ai r Condi t i oni ng Syst ems

Pr ocedur al St andar ds f or Test i ng, Adj ust i ng and Bal anci ng of Envi r onment al Syst ems

International St andar ds f or Environmental Syst ems Bal ance

TAB Speci al i st TAB Engi neer TAB Super vi sor TAB Super vi sor

Syst ems Readi ness Check

Const r uct i on Phase Inspection

Fi el d Readi ness Check & Pr el i mi nar y Fi el d Pr ocedur es

Fi el d Readi ness Check & Pr el i m.

Fi el d Pr ocedur es

1. 3 WORK DESCRI PTI ON

The wor k i ncl udes duct ai r l eakage t est i ng ( DALT) and t est i ng, adj ust i ng, and bal anci ng ( TAB) of new ( and exi st i ng, wher e i dent i f i ed on dr awi ngs) heat i ng, vent i l at i ng, and cool i ng ( HVAC) ai r and/ or wat er di st r i but i on syst ems i ncl udi ng equi pment and per f or mance dat a, duct s, and pi pi ng whi ch ar e l ocat ed wi t hi n, on, under , bet ween, and adj acent t o bui l di ngs.

Per f or m TAB i n accor dance wi t h t he r equi r ement s of t he TAB pr ocedur al st andar d r ecommended by t he TAB t r ade associ at i on t hat appr oved t he TAB Fi r m' s qual i f i cat i ons. Compl y wi t h r equi r ement s of AABC MN- 1, NEBB PROCEDURAL STANDARDS, or SMACNA 1780 ( TABB) as suppl ement ed and modi f i ed by t hi s speci f i cat i on sect i on. Al l r ecommendat i ons and suggest ed pr act i ces cont ai ned i n t he TAB pr ocedur al st andar ds ar e consi der ed mandatory.

Conduct DALT and TAB of t he i ndi cat ed exi st i ng syst ems and equi pment and submi t t he speci f i ed DALT and TAB r epor t s f or appr oval . Conduct DALT t est i ng i n compl i ance wi t h t he r equi r ement s speci f i ed i n SMACNA 1972 CD, except as suppl ement ed and modi f i ed by t hi s sect i on. Conduct DALT and TAB wor k i n accor dance wi t h t he r equi r ement s of t hi s sect i on.

1. 3. 1 Ai r Di st r i but i on Syst ems

Test , adj ust , and bal ance syst em ( TAB) i n compl i ance wi t h t hi s sect i on.

Obt ai n Cont r act i ng Of f i cer ' s wr i t t en appr oval bef or e appl y i ng i nsul at i on t o ext er i or of ai r di st r i but i on syst ems as speci f i ed under Sect i on 23 07 00

THERMAL I NSULATI ON FOR MECHANI CAL SYSTEMS.

1. 3. 2 Wat er Di st r i but i on Syst ems

TAB syst em i n compl i ance wi t h t hi s sect i on. Obt ai n Cont r act i ng Of f i cer ' s wr i t t en appr oval bef or e appl y i ng i nsul at i on t o wat er di st r i but i on syst ems as speci f i ed under Sect i on 23 07 00 THERMAL I NSULATI ON FOR MECHANI CAL SYSTEMS. At Cont r act or ' s opt i on and wi t h Cont r act i ng Of f i cer ' s wr i t t en

Apr i l 2019 Page 3 SECTI ON 23 05 93 appr oval , t he pi pi ng syst ems may be i nsul at ed bef or e syst ems ar e TAB' d.

Ter mi nat e pi pi ng i nsul at i on i mmedi at el y adj acent t o each f l ow cont r ol val ve, aut omat i c cont r ol val ve, or devi ce. Seal t he ends of pi pe i nsul at i on and t he space bet ween ends of pi pe i nsul at i on and pi pi ng, wi t h wat er pr oof vapor bar r i er coat i ng.

Af t er compl et i on of wor k under t hi s sect i on, i nsul at e t he f l ow cont r ol val ves and devi ces as speci f i ed under Sect i on 23 07 00 THERMAL I NSULATI ON

FOR MECHANI CAL SYSTEMS.

1. 3. 3 TAB SCHEMATI C DRAWI NGS

Show t he f ol l owi ng i nf or mat i on on TAB Schemat i c Dr awi ngs:

1. A uni que number or mar k f or each pi ece of equi pment or t er mi nal .

2. Ai r quant i t i es at ai r t er mi nal s.

3. Ai r quant i t i es and t emper at ur es i n ai r handl i ng uni t schedul es.

4. Wat er quant i t i es and t emper at ur es i n t her mal ener gy t r ansf er equi pment schedules.

5. Wat er quant i t i es and heads i n pump schedul es.

6. Wat er f l ow measur ement f i t t i ngs and bal anci ng f i t t i ngs.

7. Duct wor k Const r uct i on and Leakage Test i ng Tabl e t hat def i nes t he DALT t est r equi r ement s, i ncl udi ng each appl i cabl e HVAC duct syst em I D or mar k, duct pr essur e c l ass, duct seal c l ass, and duct l eakage t est pr essur e. Thi s t abl e i s i ncl uded i n t he f i l e f or Gr aphi cs f or Uni f i ed Faci l i t i es Gui de Speci f i cat i ons:

http://www.wbdg.org/ccb/NAVGRAPH/graphtoc.pdf

Submi t f our ( 4) copi es of t he TAB Schemat i c Dr awi ngs and Repor t For ms t o t he Cont r act i ng Of f i cer , no l at er t han 21 cal endar days pr i or t o t he st ar t of TAB f i el d measur ement s.

1. 3. 4 Rel at ed Requi r ement s

1. 4 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or Cont r act or Qual i t y Cont r ol appr oval . Submi t t al s wi t h an " S" ar e f or i ncl usi on i n t he Sust ai nabi l i t y Not ebook, i n conf or mance t o Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG.

Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL

PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Recor ds of Exi st i ng Condi t i ons; G

SD- 02 Shop Dr awi ngs

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TAB Schemat i c Dr awi ngs and Repor t For ms; G

SD- 03 Pr oduct Dat a

Equi pment and Per f or mance Dat a; G

TAB Rel at ed HVAC Submi t t al s; G

A l i s t of t he TAB Rel at ed HVAC Submi t t al s, no l at er t han 7 days af t er t he appr oval of t he TAB t eam engi neer .

SD- 06 Test Repor t s

Compl et ed Pr e- Fi nal DALT Repor t ; G

Cer t i f i ed Fi nal DALT Repor t ; G

SD- 07 Cer t i f i cat es

I ndependent TAB Agency and Per sonnel Qual i f i cat i ons; G

DALT and TAB Submi t t al and Wor k Schedul e; G

TAB Pr e- Fi el d Engi neer i ng Repor t ; G

1. 5 QUALI TY ASSURANCE

1. 5. 1 I ndependent TAB Agency and Per sonnel Qual i f i cat i ons

To secur e appr oval f or t he pr oposed agency, submi t i nf or mat i on cer t i f y i ng t hat t he TAB agency i s a f i r st t i er subcont r act or who i s not af f i l i at ed wi t h any ot her company par t i c i pat i ng i n wor k on t hi s cont r act , i ncl udi ng desi gn, f ur ni shi ng equi pment , or const r uct i on. Fur t her , submi t t he f ol l owi ng, f or t he agency, t o Cont r act i ng Of f i cer f or appr oval :

a. I ndependent AABC or NEBB or TABB TAB agency:

TAB agency: AABC r egi st r at i on number and expi r at i on dat e of cur r ent cer t i f i cat i on; or NEBB cer t i f i cat i on number and expi r at i on dat e of cur r ent cer t i f i cat i on; or TABB cer t i f i cat i on number and expi r at i on dat e of cur r ent cer t i f i cat i on.

TAB t eam super vi sor : Name and copy of AABC or NEBB or TABB TAB super vi sor cer t i f i cat e and expi r at i on dat e of cur r ent certification.

TAB t eam f i el d l eader : Name and document ed evi dence t hat t he t eam f i el d l eader has sat i sf act or i l y per f or med f ul l - t i me super vi s i on of TAB wor k i n t he f i el d f or not l ess t han 3 year s i mmedi at el y pr ecedi ng t hi s cont r act ' s bi d openi ng dat e.

TAB t eam f i el d t echni c i ans: Names and document ed evi dence t hat each f i el d t echni c i an has sat i sf act or i l y assi st ed a TAB t eam f i el d l eader i n per f or mance of TAB wor k i n t he f i el d f or not l ess t han one year i mmedi at el y pr ecedi ng t hi s cont r act ' s bi d openi ng dat e.

Cur r ent cer t i f i cat es: Regi st r at i ons and cer t i f i cat i ons ar e cur r ent , and val i d f or t he dur at i on of t hi s cont r act . Renew

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Cer t i f i cat i ons whi ch expi r e pr i or t o compl et i on of t he TAB wor k, i n a t i mel y manner so t hat t her e i s no l apse i n r egi st r at i on or cer t i f i cat i on. TAB agency or TAB t eam per sonnel wi t hout a cur r ent r egi st r at i on or cur r ent cer t i f i cat i on ar e not t o per f or m TAB wor k on t hi s cont r act .

b. TAB Team Member s: TAB t eam appr oved t o accompl i sh wor k on t hi s cont r act ar e f ul l - t i me empl oyees of t he TAB agency. No ot her per sonnel i s al l owed t o do TAB wor k on t hi s cont r act .

c. Repl acement of TAB t eam member s: Repl acement of member s may occur i f each new member compl i es wi t h t he appl i cabl e per sonnel qual i f i cat i ons and each i s appr oved by t he Cont r act i ng Of f i cer .

PART 2 PRODUCTS

Not Used

PART 3 EXECUTI ON

3. 1 WORK DESCRI PTI ONS OF PARTI CI PANTS

Compl y wi t h r equi r ement s of t hi s sect i on.

3. 2 PRE- DALT/ TAB MEETI NG

Meet wi t h t he Cont r act i ng Of f i cer ' s t echni cal r epr esent at i ve ( COTR) and t he desi gni ng engi neer of t he HVAC syst ems t o devel op a mut ual under st andi ng r el at i ve t o t he det ai l s of t he DALT wor k and TAB wor k r equi r ement s.

Ensur e t hat t he TAB super vi sor i s pr esent at t hi s meet i ng. Requi r ement s t o be di scussed i ncl ude r equi r ed submi t t al s, wor k schedul e, and f i el d qual i t y cont r ol .

3. 3 DALT PROCEDURES

3. 3. 1 I nst r ument s, Consumabl es and Per sonnel

Pr ovi de i nst r ument s, consumabl es and per sonnel r equi r ed t o accompl i sh t he DALT f i el d wor k. Fol l ow t he same basi c pr ocedur e speci f i ed bel ow f or TAB Fi el d Wor k, i ncl udi ng mai nt enance and cal i br at i on of i nst r ument s, accur acy of measur ement s, pr el i mi nar y pr ocedur es, f i el d wor k, wor kmanshi p and t r eat ment of def i c i enci es. Cal i br at e and mai nt ai n i nst r ument s i n accor dance wi t h manuf act ur er ' s wr i t t en pr ocedur es.

3. 3. 2

On compl et i on of t he i nst al l at i on of each duct syst em i ndi cat ed t o be DALT' d, not i f y t he Cont r act i ng Of f i cer i n wr i t i ng pr i or t o t he COTR' s duct sel ect i on f i el d v i s i t .

3. 3. 3 Duct wor k To Be DALT' d

Fr om each duct syst em i ndi cat ed as subj ect t o DALT, t he COTR wi l l r andoml y sel ect sect i ons of each compl et ed duct syst em f or t est i ng by t he Cont r act or ' s TAB Fi r m. The sect i ons sel ect ed wi l l not exceed 20 per cent of t he t ot al measur ed l i near f oot age of duct syst ems i ndi cat ed as subj ect t o DALT. Sect i ons of duct syst ems subj ect t o DALT wi l l i ncl ude 20 per cent of mai n duct s, br anch mai n duct s, br anch duct s and pl enums f or suppl y, r et ur n, exhaust , and pl enum duct wor k.

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I t i s accept abl e f or an ent i r e duct syst em t o be DALT' d i nst ead of di sassembl i ng t hat syst em i n or der t o DALT onl y t he 20 per cent por t i on speci f i ed above.

3. 3. 4 DALT Test i ng

Per f or m DALT on t he HVAC duct sect i ons of each syst em as sel ect ed by t he COTR. Use t he duct c l ass, seal c l ass, l eakage cl ass and t he l eak t est pr essur e dat a i ndi cat ed on t he dr awi ngs, t o compl y wi t h t he pr ocedur es speci f i ed i n SMACNA 1972 CD.

I n spi t e of speci f i cat i ons of SMACNA 1972 CD t o t he cont r ar y, DALT duct wor k of const r uct i on c l ass of 3- i nch wat er gauge st at i c pr essur e and bel ow i f i ndi cat ed t o be DALT' d. Compl et e DALT wor k on t he COTR sel ect ed duct wor k wi t hi n 48 hour s af t er t he par t i cul ar duct wor k was sel ect ed f or DALT. Separ at el y conduct DALT wor k f or l ar ge duct syst ems t o enabl e t he DALT wor k t o be compl et ed i n 48 hour s.

3. 3. 5 Compl et ed Pr e- Fi nal DALT Repor t

3. 3. 6 Qual i t y Assur ance - COTR DALT Fi el d Accept ance Test i ng

I n t he pr esence of t he COTR and TAB t eam f i el d l eader , ver i f y f or accur acy Pr e- f i nal DALT Repor t dat a sel ect ed by t he COTR. For each duct syst em, t hi s accept ance t est i ng shal l be conduct ed on a maxi mum of 50 per cent of t he duct sect i ons DALT' d.

Fur t her , i f any dat a on t he Pr e- f i nal DALT r epor t f or m f or a gi ven duct sect i on i s out - of - t ol er ance, t hen f i el d accept ance t est i ng shal l be conduct ed on dat a f or one addi t i onal duct sect i on, pr ef er abl y i n t he same duct syst em, i n t he pr esence of t he COTR.

3. 3. 7 Addi t i onal COTR Fi el d Accept ance Test i ng

I f any of t he duct sect i ons checked f or a gi ven syst em ar e det er mi ned t o have a l eakage r at e measur ed t hat exceeds t he l eakage r at e al l owed by SMACNA Leak Test Manual f or an i ndi cat ed duct const r uct i on c l ass and seal ant c l ass, t er mi nat e dat a checki ng f or t hat sect i on. The associ at ed Pr e- f i nal DALT Repor t dat a f or t he gi ven duct syst em wi l l be di sappr oved.

Make t he necessar y cor r ect i ons and pr epar e a r evi sed Pr e- f i nal DALT Repor t . Reschedul e a f i el d check of t he r evi sed r epor t dat a wi t h t he COTR.

3. 3. 8 Cer t i f i ed Fi nal DALT Repor t

3. 3. 9 Pr er equi s i t e f or TAB Fi el d Wor k

Do not commence TAB f i el d wor k pr i or t o t he compl et i on and appr oval , f or al l syst ems, of t he Fi nal DALT Repor t .

3. 4 TAB PROCEDURES

3. 4. 1 TAB Fi el d Wor k

Test , adj ust , and bal ance t he HVAC syst ems unt i l measur ed f l ow r at es ( ai r

Apr i l 2019 Page 7 SECTI ON 23 05 93 and wat er f l ow) ar e wi t hi n pl us or mi nus 5 per cent of t he desi gn f l ow r at es as speci f i ed or i ndi cat ed on t he cont r act document s.

That i s, compl y wi t h t he t he r equi r ement s of AABC MN- 1 or SMACNA 1780 ( TABB) and SMACNA 1858 ( TABB) , except as suppl ement ed and modi f i ed by t hi s section.

Pr ovi de i nst r ument s and consumabl es r equi r ed t o accompl i sh t he TAB wor k.

Cal i br at e and mai nt ai n i nst r ument s i n accor dance wi t h manuf act ur er ' s wr i t t en pr ocedur es.

Test , adj ust , and bal ance t he HVAC syst ems unt i l measur ed f l ow r at es ( ai r and wat er f l ow) ar e wi t hi n pl us or mi nus 5 per cent of t he desi gn f l ow r at es as speci f i ed or i ndi cat ed on t he cont r act document s. Conduct TAB wor k, i ncl udi ng measur ement accur acy, and sound measur ement wor k i n conf or mance wi t h t he AABC MN- 1 and AABC MN- 4, or NEBB TABES and NEBB MASV, or SMACNA 1780 ( used by TABB) and SMACNA 1858 sound measur ement pr ocedur es, except as suppl ement ed and modi f i ed by t hi s sect i on. The onl y wat er f l ow and ai r f l ow r epor t i ng whi ch can be def er r ed unt i l t he Season 2 i s t hat dat a whi ch woul d be af f ect ed i n t er ms of accur acy due t o out si de ambi ent condi t i ons.

3. 4. 2 Pr el i mi nar y Pr ocedur es

Use t he appr oved pr e- f i el d engi neer i ng r epor t as i nst r uct i ons and pr ocedur es f or accompl i shi ng TAB f i el d wor k. TAB engi neer i s t o l ocat e, i n t he f i el d, t est por t s r equi r ed f or t est i ng. I t i s t he r esponsi bi l i t y of t he sheet met al cont r act or t o pr ovi de and i nst al l t est por t s as r equi r ed by t he TAB engi neer .

3. 4. 3 TAB Ai r Di st r i but i on Syst ems

3. 4. 3. 1 Uni t s Wi t h Coi l s

Repor t heat i ng and cool i ng per f or mance capaci t y t est s f or hot wat er , chi l l ed wat er , DX and st eam coi l s f or t he pur pose of ver i f y i ng t hat t he coi l s meet t he i ndi cat ed desi gn capaci t y. Submi t t he f ol l owi ng dat a and cal cul at i ons wi t h t he coi l t est r epor t s:

a. For ai r handl er s wi t h capaci t i es gr eat er t han 7. 5 t ons ( 90, 000 Bt u) cool i ng, such as f act or y manuf act ur ed uni t s, cent r al bui l t - up uni t s and r oof t op uni t s, conduct capaci t y t est s i n accor dance wi t h AABC MN- 4, pr ocedur e 3. 5, " Coi l Capaci t y Test i ng. "

Do not det er mi ne ent er i ng and l eavi ng wet and dr y bul b t emper at ur es by s i ngl e poi nt measur ement , but by t he aver age of mul t i pl e r eadi ngs i n compl i ance wi t h par agr aph 3. 5- 5, " Pr ocedur es" , ( i n subpar agr aph d. ) of AABC MN- 4, Pr ocedur e 3. 5, " Coi l Capaci t y Test i ng. "

Submi t par t - l oad coi l per f or mance dat a f r om t he coi l manuf act ur er conver t i ng t est condi t i ons t o desi gn condi t i ons; use t he dat a f or t he pur pose of ver i f y i ng t hat t he coi l s meet t he i ndi cat ed desi gn capaci t y i n compl i ance wi t h AABC MN- 4, Pr ocedur e 3. 5, " Coi l Capaci t y Test i ng, " par agr aph 3. 5. 7, " Act ual Capaci t y Vs. Desi gn Capaci t y" ( i n subpar agr aph c. ) .

b. For uni t s wi t h capaci t i es of 7. 5 t ons ( 90, 000 Bt u) or l ess, such as f an coi l uni t s, duct mount ed r eheat coi l s associ at ed wi t h VAV t er mi nal uni t s, and uni t ar y uni t s, such as t hr ough- t he- wal l heat pumps:

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Det er mi ne t he appar ent coi l capaci t y by cal cul at i ons usi ng si ngl e poi nt measur ement of ent er i ng and l eavi ng wet and dr y bul b t emper at ur es; submi t t he cal cul at i ons wi t h t he coi l r epor t s.

3. 4. 3. 2 Ai r Handl i ng Uni t s

Ai r handl i ng uni t syst ems i ncl udi ng f ans ( ai r handl i ng uni t f ans, exhaust f ans and wi nt er vent i l at i on f ans) , coi l s, duct s, pl enums, mi xi ng boxes, t er mi nal uni t s, var i abl e ai r vol ume boxes, and ai r di st r i but i on devi ces f or suppl y ai r , r et ur n ai r , out s i de ai r , mi xed ai r r el i ef ai r , and makeup air.

3. 4. 3. 3 Roof t op Ai r Condi t i oni ng

Roof t op ai r condi t i oni ng syst ems i ncl udi ng f ans, coi l s, duct s, pl enums, and ai r di st r i but i on devi ces f or suppl y ai r , r et ur n ai r , and out si de ai r .

For r ef r i ger at i on compr essor s/ condenser s/ condensi ng uni t s/ evapor at or s, r epor t dat a as r equi r ed by NEBB, AABC, and TABB st andar d pr ocedur es, i ncl udi ng r ef r i ger at i on oper at i onal dat a.

3. 4. 3. 4 Heat i ng and Vent i l at i ng Uni t s

Heat i ng and vent i l at i ng uni t syst ems i ncl udi ng f ans, coi l s, duct s, pl enums, r oof vent s, r egi st er s, di f f user s, gr i l l es, and l ouver s f or suppl y ai r , r et ur n ai r , out s i de ai r , and mi xed ai r .

3. 4. 3. 5 Makeup Ai r Uni t s

Makeup ai r uni t syst ems i ncl udi ng f ans, coi l s, duct s, pl enums, r egi st er s, di f f user s, gr i l l es, and l ouver s f or suppl y ai r , r et ur n ai r , out s i de ai r , and mi xed ai r .

3. 4. 3. 6 Ret ur n Ai r Fans

Ret ur n ai r f an syst em i ncl udi ng f an duct s, pl enums, r egi st er s, di f f user s, gr i l l es, and l ouver s f or suppl y ai r , r et ur n ai r , out s i de ai r , and mi xed air.

3. 4. 3. 7 Fan Coi l s

Fan coi l uni t syst ems i ncl udi ng f ans, coi l s, duct s, pl enums, and ai r di st r i but i on devi ces f or suppl y ai r , r et ur n ai r , and out si de ai r .

3. 4. 3. 8 Exhaust Fans

Exhaust f an syst ems i ncl udi ng f ans, duct s, pl enums, gr i l l es, and hoods f or exhaust ai r .

3. 4. 4 TAB Wat er Di st r i but i on Syst ems

3. 4. 4. 1 Chi l l ed Wat er

Chi l l ed wat er syst ems i ncl udi ng chi l l er s, condenser s, cool i ng t ower s, pumps, coi l s, syst em bal ance val ves and f l ow measur i ng devi ces.

For wat er chi l l er s, r epor t dat a as r equi r ed by AABC, NEBB and TABB st andar d pr ocedur es, i ncl udi ng r ef r i ger at i on oper at i onal dat a.

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3. 4. 4. 2 Heat i ng Hot Wat er

Heat i ng hot wat er syst ems i ncl udi ng boi l er s, hot wat er conver t er s ( e. g. , heat exchanger s) , pumps, coi l s, syst em bal anci ng val ves and f l ow measur i ng devices.

3. 4. 4. 3 Dual Temper at ur e Wat er

Dual t emper at ur e wat er syst ems i ncl udi ng boi l er s, conver t er s, chi l l er s, condenser s, cool i ng t ower s, pumps, coi l s, and syst em bal anci ng val ves, and f l ow measur i ng devi ces.

3. 4. 5 Sound Measur ement Wor k

3. 4. 5. 1 Ar eas To Be Sound Measur ed

I n t he f ol l owi ng spaces, measur e and r ecor d t he sound power l evel f or each oct ave band l i s t ed i n ASHRAE HVAC APP I P HDBK Noi se Cr i t er i a:

a. Al l HVAC mechani cal r ooms, i ncl udi ng machi ner y spaces and ot her spaces cont ai ni ng HVAC power dr i ver s and power dr i ven equi pment .

b. Al l spaces shar i ng a common bar r i er wi t h each mechani cal r oom, i ncl udi ng r ooms over head, r ooms on t he ot her s i de of s i de wal l s, and r ooms beneat h t he mechani cal r oom f l oor .

c. Repr esent at i ve non- mechani cal r ooms whi ch ar e occupi ed by any per sonnel and ar e ser ved by each t ype of pr i mar y HVAC ai r movi ng syst em and HVAC wat er movi ng syst ems. I ncl ude r ooms ser ved by l i ke pr i mar y syst ems whi ch have si gni f i cant l y di f f er ent sound af f ect i ng conf i gur at i ons. 3. 4. 5. 2 Procedure

Measur e sound l evel s i n each r oom, when unoccupi ed except f or t he TAB t eam, wi t h al l HVAC syst ems t hat woul d cause sound r eadi ngs i n t he r oom oper at i ng i n t hei r noi s i est mode. Recor d t he sound l evel i n each oct ave band. At t empt t o mi t i gat e t he sound l evel and br i ng t he l evel t o wi t hi n t he speci f i ed ASHRAE HVAC APP I P HDBK noi se cr i t er i a goal s, i f such mi t i gat i on i s wi t hi n t he TAB t eam' s cont r ol . St at e i n t he r epor t t he ASHRAE HVAC APP I P HDBK noi se cr i t er i a goal s. I f sound l evel cannot be br ought i nt o compl i ance, pr ovi de wr i t t en not i ce of t he def i c i ency t o t he Cont r act or f or r esol ut i on or cor r ect i on.

3. 4. 5. 3 Timing

Measur e sound l evel s at t i mes pr escr i bed by AABC or NEBB or TABB.

3. 4. 5. 4 Meters

Measur e sound l evel s wi t h a sound met er compl yi ng wi t h ASA S1. 4, Type 1 or 2, and an oct ave band f i l t er set compl yi ng wi t h ASA S1. 11 PART 1. Use measur ement met hods f or over al l sound l evel s and f or oct ave band sound l evel s as pr escr i bed by NEBB.

3. 4. 5. 5 Calibration

Cal i br at e sound l evel s as pr escr i bed by AABC or NEBB or TABB, except t hat cal i br at or s emi t t i ng a sound pr essur e l evel t one of 94 dB at 1000 her t z ( Hz) ar e al so accept abl e.

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3. 4. 5. 6 Backgr ound Noi se Cor r ect i on

Det er mi ne backgr ound noi se component of r oom sound ( noi se) l evel s f or each ( of ei ght ) oct ave bands as pr escr i bed by AABC or NEBB or TABB.

3. 4. 6 TAB Wor k on Per f or mance Test s Wi t hout Seasonal Li mi t at i ons

3. 4. 6. 1 Per f or mance Test s

I n addi t i on t o t he TAB pr opor t i onat e bal anci ng wor k on t he ai r di st r i but i on syst ems and t he wat er di st r i but i on syst ems, accompl i sh TAB wor k on t he HVAC syst ems whi ch di r ect l y t r ansf er t her mal ener gy. TAB t he oper at i onal per f or mance of t he heat i ng syst ems and cool i ng syst ems.

3. 4. 6. 2 Ambi ent Temper at ur es

On each t ab r epor t f or m used f or r ecor di ng dat a, r ecor d t he out door and i ndoor ambi ent dr y bul b t emper at ur e r ange and t he out door and i ndoor ambi ent wet bul b t emper at ur e r ange wi t hi n whi ch t he r epor t f or m' s dat a was r ecor ded. Recor d t hese t emper at ur es at begi nni ng and at t he end of dat a taking.

3. 4. 6. 3 Sound Measur ement s

Compl y wi t h t he par agr aph SOUND MEASUREMENT WORK, speci f i cal l y, t he r equi r ement t hat a r oom must be oper at i ng i n i t s noi s i est mode at t he t i me of sound measur ement s i n t he r oom. The maxi mum noi se l evel measur ement s coul d depend on seasonal l y r el at ed heat or cool i ng t r ansf er equi pment .

3. 4. 7 TAB Wor k on Per f or mance Test s Wi t h Seasonal Li mi t at i ons

3. 4. 7. 1 Per f or mance Test s

3. 4. 7. 2 Season Of Maxi mum Load

3. 4. 7. 3 Ambi ent Temper at ur es

On each t ab r epor t f or m used f or r ecor di ng dat a, r ecor d t he out door and i ndoor ambi ent dr y bul b t emper at ur e r ange and t he out door and i ndoor ambi ent wet bul b t emper at ur e r ange wi t hi n whi ch t he r epor t f or m' s dat a was r ecor ded. Recor d t hese t emper at ur es at begi nni ng and at t he end of dat a taking.

3. 4. 7. 4 Sound Measur ement s

Compl y wi t h t he par agr aph SOUND MEASUREMENT WORK, speci f i cal l y, t he r equi r ement t hat a r oom must be oper at i ng i n i t s noi s i est mode at t he t i me of sound measur ement s i n t he r oom. The maxi mum noi se l evel measur ement s coul d depend on seasonal l y r el at ed heat or cool i ng t r ansf er equi pment .

3. 4. 8 Workmanship

Conduct TAB wor k on t he HVAC syst ems unt i l measur ed f l ow r at es ar e wi t hi n pl us or mi nus 5 per cent of t he desi gn f l ow r at es as speci f i ed or i ndi cat ed

Apr i l 2019 Page 11 SECTI ON 23 05 93 on t he cont r act document s. Thi s TAB wor k i ncl udes adj ust ment of bal anci ng val ves, bal anci ng damper s, and sheaves. Fur t her , t hi s TAB wor k i ncl udes changi ng out f an sheaves and pump i mpel l er s i f r equi r ed t o obt ai n ai r and wat er f l ow r at es speci f i ed or i ndi cat ed. I f , wi t h t hese adj ust ment s and equi pment changes, t he speci f i ed or i ndi cat ed desi gn f l ow r at es cannot be at t ai ned, cont act t he Cont r act i ng Of f i cer f or di r ect i on.

3. 4. 9 Deficiencies

St r i ve t o meet t he i nt ent of t hi s sect i on t o maxi mi ze t he per f or mance of t he equi pment as desi gned and i nst al l ed. However , i f def i c i enci es i n equi pment desi gn or i nst al l at i on pr event TAB wor k f r om bei ng accompl i shed wi t hi n t he r ange of desi gn val ues speci f i ed i n t he par agr aph WORKMANSHI P, pr ovi de wr i t t en not i ce as soon as possi bl e t o t he Cont r act or and t he Cont r act i ng Of f i cer descr i bi ng t he def i c i ency and r ecommended cor r ect i on.

Responsi bi l i t y f or cor r ect i on of i nst al l at i on def i c i enci es i s t he Cont r act or ' s. I f a def i c i ency i s i n equi pment desi gn, cal l t he TAB t eam super vi sor f or t echni cal assi st ance. Responsi bi l i t y f or r epor t i ng desi gn def i c i enci es t o Cont r act or i s t he TAB t eam super vi sor ' s.

3. 4. 10 TAB Repor t s

3. 4. 11 Qual i t y Assur ance - COTR TAB Fi el d Accept ance Test i ng

3. 4. 11. 1 TAB Fi el d Accept ance Test i ng

Dur i ng t he f i el d accept ance t est i ng, ver i f y, i n t he pr esence of t he COTR, r andom sel ect i ons of dat a ( wat er , ai r quant i t i es, ai r mot i on, ) r ecor ded i n t he TAB Repor t . Poi nt s and ar eas f or f i el d accept ance t est i ng ar e t o be sel ect ed by t he COTR. Measur ement and t est pr ocedur es ar e t he same as appr oved f or TAB wor k f or t he TAB Repor t .

Fi el d accept ance t est i ng i ncl udes ver i f i cat i on of TAB Repor t dat a r ecor ded f or t he f ol l owi ng equi pment gr oups:

Gr oup 1: Al l chi l l er s, boi l er s, r et ur n f ans, comput er r oom uni t s, and ai r handl i ng uni t s ( r oof t op and cent r al st at i ons) .

Gr oup 2: 25 per cent of t he VAV t er mi nal boxes and associ at ed di f f user s and r egi st er s.

Gr oup 3: 25 per cent of t he suppl y di f f user s, r egi st er s, gr i l l es associ at ed wi t h const ant vol ume ai r handl i ng uni t s.

Gr oup 4: 25 per cent of t he r et ur n gr i l l es, r et ur n r egi st er s, exhaust gr i l l es and exhaust r egi st er s.

Gr oup 5: 25 per cent of t he suppl y f ans, exhaust f ans, and pumps.

Fur t her , i f any dat a on t he TAB Repor t f or Gr oups 2 t hr ough 5 i s f ound not t o f al l wi t hi n t he r ange of pl us 5 t o mi nus 5 per cent of t he TAB Repor t dat a, addi t i onal gr oup dat a ver i f i cat i on i s r equi r ed i n t he pr esence of t he COTR. Ver i f y TAB Repor t dat a f or one addi t i onal pi ece of equi pment i n t hat gr oup. Cont i nue t hi s addi t i onal gr oup dat a ver i f i cat i on unt i l out - of - t ol er ance dat a ceases t o be f ound.

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3. 4. 11. 2 Addi t i onal COTR TAB Fi el d Accept ance Test i ng

I f any of t he accept ance t est i ng measur ement s f or a gi ven equi pment gr oup i s f ound not t o f al l wi t hi n t he r ange of pl us 5 t o mi nus 5 per cent of t he TAB Repor t dat a, t er mi nat e dat a ver i f i cat i on f or al l af f ect ed dat a f or t hat gr oup. The af f ect ed dat a f or t he gi ven gr oup wi l l be di sappr oved.

Make t he necessar y cor r ect i ons and pr epar e a r evi sed TAB Repor t .

Reschedul e accept ance t est i ng of t he r evi sed r epor t dat a wi t h t he COTR.

3. 4. 11. 3 Pr er equi s i t e f or Appr oval

Compl i ance wi t h t he f i el d accept ance t est i ng r equi r ement s of t hi s sect i on i s a pr er equi s i t e f or t he f i nal Cont r act i ng Of f i cer appr oval of t he TAB Repor t submi t t ed.

3. 5 MARKI NG OF SETTI NGS

Upon t he f i nal TAB wor k appr oval , per manent l y mar k t he set t i ngs of HVAC adj ust ment devi ces i ncl udi ng val ves, gauges, spl i t t er s, and damper s so t hat adj ust ment can be r est or ed i f di st ur bed at any t i me. Pr ovi de per manent mar ki ngs cl ear l y i ndi cat i ng t he set t i ngs on t he adj ust ment devi ces whi ch r esul t i n t he dat a r epor t ed on t he submi t t ed TAB r epor t .

3. 6 MARKI NG OF TEST PORTS

The TAB t eam i s t o per manent l y and l egi bl y mar k and i dent i f y t he l ocat i on poi nt s of t he duct t est por t s. I f t he duct s have ext er i or i nsul at i on, make t hese mar ki ngs on t he ext er i or s i de of t he duct i nsul at i on. Show t he l ocat i on of t est por t s on t he as- bui l t mechani cal dr awi ngs wi t h di mensi ons gi ven wher e t he t est por t i s cover ed by ext er i or i nsul at i on.

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