Amendment 3 Attachment 6 Specifications 11 41 11.pdf

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CNRC Critical Upgrades to Insulation, Piping & HVAC
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This document is the technical specifications for Section 11 41 11 Refrigerated Storage for a federal contract opportunity. It outlines the requirements for prefabricated walk-in refrigerators and freezers, insulation materials, refrigeration unit systems, and installation procedures. Key details include:

The project is for critical upgrades to insulation, piping, and HVAC at the CNRC facility in Houston, TX. It is a 100% small business set-aside under NAICS code 236220 for Commercial and Institutional Building Construction, with a project magnitude between $1-5 million. The specifications cover requirements for constructing and installing prefabricated walk-in refrigerators and freezers, including panel construction, doors, lighting, and refrigeration systems. Contractors must submit detailed shop drawings, product data, test reports, and manufacturer/contractor warranties. Installation must comply with industry standards such as ASHRAE, NSF, and UL.

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CNRC CRI TI CAL UPGRADES 2923EP1UPGRADES

SECTI ON 11 41 11

REFRI GERATED STORAGE

08/ 17

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.

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

ENGI NEERS ( ASHRAE)

ANSI / ASHRAE 15 & 34 ( 2013) ANSI / ASHRAE St andar d 15- Saf et y St andar d f or Ref r i ger at i on Syst ems and ANSI / ASHRAE St andar d 34- Desi gnat i on and Saf et y Cl assi f i cat i on of Ref r i ger ant s

ASHRAE 189. 1 ( 2014) St andar d f or t he Desi gn of Hi gh- Per f or mance Gr een Bui l di ngs Except Low- Ri se Resi dent i al Bui l di ngs

ASTM I NTERNATI ONAL ( ASTM)

ASTM E84 ( 2023) St andar d Test Met hod f or Sur f ace Bur ni ng Char act er i st i cs of Bui l di ng Mat er i al s

NSF I NTERNATI ONAL ( NSF)

NSF Food Equi pment ( 2005) NSF Pr oduct Li st i ngs of Food Equi pment and Rel at ed Pr oduct s, Component s and Mat er i al s

NSF/ ANSI 2 ( 2022) Food Equi pment

NSF/ ANSI 6 ( 2023) Di spensi ng Fr eezer s

NSF/ ANSI 7 ( 2023) Commer ci al Ref r i ger at or s and Fr eezer s

UNDERWRI TERS LABORATORI ES ( UL)

UL 207 ( 2022) UL St andar d f or Saf et y Ref r i ger ant - Cont ai ni ng Component s and Accessor i es, Nonel ect r i cal

UL 471 ( 2010; Repr i nt Sep 2019) UL St andar d f or Saf et y Commer ci al Ref r i ger at or s and Fr eezer s

UL 723 ( 2020) UL St andar d f or Saf et y Test f or Sur f ace Bur ni ng Char act er i st i cs of Bui l di ng Mat er i al s

SECTI ON 11 41 11 Page 1

UL 1598 ( 2021; Repr i nt Jun 2021) Lumi nai r es

1. 2 DESCRI PTI ON OF WORK

The wor k i ncl udes f ur ni shi ng and i nst al l i ng and modi f y i ng exi st i ng r ef r i ger at ed st or age f ood ser vi ce equi pment and al l r el at ed wor k necessar y t o pr ovi de a compl et e i nst al l at i on. Ver i f y exi st i ng di mensi ons, s i t e condi t i ons, and r equi r ed ut i l i t y connect i ons pr i or t o commencement of wor k. Coor di nat e del i ver y of component s wi t h f i ni shed openi ngs and ot her ver t i cal handl i ng l i mi t at i ons wi t hi n t he bui l di ng. Advi se t he Cont r act i ng Of f i cer of di scr epanci es pr i or t o pr ocur ement and i nst al l at i on of equi pment . Submi t Cont r act or ' s Fi el d Ver i f i cat i on Dat a pr i or t o t he pr econst r uct i on meet i ng.

Pr ovi de r ough- i n and ut i l i t y connect i ons t o equi pment i n accor d wi t h r equi r ement s speci f i ed i n ot her sect i ons of t hi s speci f i cat i on.

Coor di nat e physi cal di mensi ons, capaci t i es, manuf act ur er ' s i nst r uct i ons, and ot her r equi r ement s of t he equi pment f ur ni shed.

1. 2. 1 Desi gn Requi r ement s

Submi t det ai l dr awi ngs f or al l col d/ r ef r i ger at ed st or age uni t s. Dr awi ngs must be 1/ 4 i nch scal e mi ni mum.

Submi t a compl et e, mat er i al dat a, and dr awi ngs as speci f i ed. Pr ovi de det ai l dr awi ngs showi ng compl et e wi r i ng, pi pi ng, and schemat i c di agr ams, and any ot her det ai l s r equi r ed t o demonst r at e t hat t he syst em i s coor di nat ed and pr oper l y f unct i ons as a uni t .

a. Det ai l dr awi ngs by Cont r act or must be separ at e dr awi ngs and be t he Cont r act or ' s st andar d sheet s i ze, but not smal l er t han t he cont r act dr awi ngs, i ndi cat i ng col d st or age assembl i es wi t h i t emi zed schedul e, speci al condi t i ons dr awi ngs i ndi cat i ng s i ze and l ocat i on of cor es, wal l openi ngs, bl ockout s, cei l i ng pocket s, bl ocki ng gr ounds, access panel s, r ough- i n pl umbi ng/ mechani cal syst ems and r ough- i n el ect r i cal syst ems.

b. Pr epar e and submi t det ai l dr awi ngs t hat show t he si ze, t ype, and l ocat i on of equi pment dr ai n l i nes, and f l oor dr ai ns. I ndi cat e dr ai n l i nes f r om equi pment , di st ances of dr ai n l i nes and f l oor dr ai n r ecept acl es f r om equi pment and ai s l es, and el evat i on v i ews of dr ai n pi pi ng and f l oor dr ai ns.

c. Det ai l dr awi ngs by manuf act ur er must be separ at e dr awi ngs;

manuf act ur er ' s st andar d s i ze and i ndi cat e i t em number , name, and quant i t y, const r uct i on det ai l s, sect i ons, and el evat i ons, adj acent wal l s, col umns, and equi pment , pl umbi ng and el ect r i cal schemat i cs, and f abr i cat ed f i xt ur es wi t h s i ngl e el ect r i cal or pl umbi ng connect i on, and ser vi ce access panel s r equi r ed f or mai nt enance or r epl acement of mechani cal or el ect r i cal component s.

1. 3 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" or " S" c l assi f i cat i on. Submi t t al s not havi ng a " G" or " S" c l assi f i cat i on ar e f or Cont r act or Qual i t y Cont r ol appr oval . 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

SECTI ON 11 41 11 Page 2

Cont r act or ' s Fi el d Ver i f i cat i on Dat a; G

SD- 02 Shop Dr awi ngs

Manuf act ur er ' s Det ai l Dr awi ngs; G

Cust om Fabr i cat ed Equi pment ; G

I nst al l at i on I nst r uct i ons and Di agr ams; G

SD- 03 Pr oduct Dat a

Wal k- i n Ref r i ger at or s; G

SD- 05 Desi gn Dat a

Manuf act ur er ' s Descr i pt i ve and Techni cal Li t er at ur e; G

SD- 06 Test Repor t s

Manuf act ur er ' s Test Dat a; G

Fi el d Test Repor t s; G

SD- 07 Cer t i f i cat es

NSF Cer t i f i cat i on

UL Cer t i f i cat i on

SD- 08 Manuf act ur er ' s I nst r uct i ons

Manuf act ur er ' s I nst r uct i ons f or Shi ppi ng, Handl i ng, St or age, I nst al l at i on, and St ar t - Up.

SD- 11 Cl oseout Submi t t al s

Manuf act ur er ' s War r ant y

Cont r act or ' s War r ant y f or I nst al l at i on

1. 4 SHOP DRAWI NGS

Submi t manuf act ur er ' s det ai l dr awi ngs and cust om f abr i cat ed equi pment dr awi ngs f or each r ef r i ger at ed encl osur e. I ncl ude i nsul at i on det ai l s, ut i l i t y connect i ons, and i nst al l at i on i nst r uct i ons and di agr ams. Base shop dr awi ngs on ver i f i ed f i el d measur ement s and i ncl ude cont r act or ' s f i el d ver i f i cat i on dat a.

1. 5 QUALI TY ASSURANCE

1. 5. 1 Pr e- I nst al l at i on Conf er ence

Thi r t y days pr i or t o commencement of wor k, not i f y t he Cont r act i ng Of f i cer t hat t he f ol l owi ng i t ems ar e pr epar ed and r eady f or r evi ew:

a. Shop Dr awi ngs, pr oduct dat a and i nst al l at i on i nst r uct i ons

SECTI ON 11 41 11 Page 3

( 1) Manuf act ur er ' s det ai l dr awi ngs

( 2) Cust om f abr i cat ed equi pment dr awi ngs and dat a

( a) Submi t af t er appr oval of f ood ser vi ce equi pment dr awi ngs.

( 3) I nst al l at i on i nst r uct i ons and di agr ams

b. Pr oduct Dat a

( 1) Wal k- i n r ef r i ger at or s

c. Desi gn Dat a

( 1) Manuf act ur er ' s descr i pt i ve and t echni cal l i t er at ur e

( 2) Manuf act ur er ' s Test Dat a

d. Manuf act ur er ' s I nst r uct i ons

For shi ppi ng, handl i ng, st or age, i nst al l at i on, and st ar t - up.

1. 5. 2 Fact or y Test s and Cer t i f i cat i ons

Submi t Manuf act ur er ' s Test Dat a and cer t i f i cat i ons, i ncl udi ng NSF Cer t i f i cat i on and UL Cer t i f i cat i on.

PART 2 PRODUCTS

2. 1 MATERI ALS

2. 1. 1 I nsul at i on

Pr ovi de i nsul at i on mat er i al s f or al l equi pment as f ol l ows:

a. I nsul at ed component s must have a compl et e sur f ace encl osur e of not l ess t han 0. 032 i nches of al umi num or cor r osi on r esi st ant st eel havi ng a base met al t hi ckness of not l ess t han 0. 0160 i nches at any poi nt .

b. I nsul at ed component s must be pr ot ect ed by an aut omat i c spr i nkl er syst em l ocat ed wi t hi n t he r ef r i ger at ed uni t ( s) t hemsel ves as wel l as i n t he por t i ons( s) of t he bui l di ng( s) i n whi ch t hey ar e l ocat ed.

c. I nsul at i on must compl y wi t h f l ame spr ead i ndex l i mi t s of not mor e t han 75 and smoke devel oped i ndex of not mor e t han 450 when t est ed, i n t he maxi mum t hi ckness i nt ended f or use, i n accor dance wi t h ASTM E84 or

UL 723.

2. 2 CONSTRUCTI ON OF FABRI CATED EQUI PMENT

2. 2. 1 Gr i ndi ng, Pol i shi ng, and Fi ni shi ng

Gr i nd smoot h al l exposed wel ded j oi nt s and f i ni sh t o mat ch t he adj oi ni ng mat er i al . Wher ever mat er i al s have been depr essed or sunken by wel di ng oper at i on, hammer and peen such depr essi ons f l ush wi t h t he adj oi ni ng sur f ace, and agai n gr i nd t o el i mi nat e hi gh spot s. Pol i sh and buf f gr ound sur f aces t o mat ch adj oi ni ng sur f aces. Exer ci se car e i n t he gr i ndi ng oper at i ons t o avoi d excessi ve heat i ng of t he met al and met al di scol or at i on. Abr asi ves, wheel s, and bel t s used i n gr i ndi ng must be f r ee

SECTI ON 11 41 11 Page 4 of i r on and not pr evi ousl y used on car bon st eel . I n al l cases, t he gr ai n of r ough gr i ndi ng must be r emoved by sever al successi vel y f i ner pol i shi ng oper at i ons. Fi nal pol i shi ng oper at i on must be uni f or m, smoot h, and consi st ent . Make t he gr ai n di r ect i on of hor i zont al st ai nl ess st eel sur f ace l ongi t udi nal , i ncl udi ng t he spl ash back. Pr ovi de a mi t er ed appear ance when pol i shi ng at r i ght angl e cor ner s. Pr ovi de cl ose f i t but t and cont act j oi nt s not r equi r i ng sol der as a f i l l er . Wher ever br ake bends occur , t he bends must be f r ee of open t ext ur e or or ange peel appear ance.

Wher e br ake wor k does mar t he uni f or m appear ance of t he mat er i al , r emove such mar ks by gr i ndi ng, pol i shi ng, and f i ni shi ng. Make shear ed edges f r ee of bur r s, pr oj ect i ons, and f i ns. Wher e mi t er s or bul l nosed cor ner s occur , f i ni sh such mi t er s and cor ner s wi t h t he under age of t he mat er i al and gr i nd t o a uni f or m condi t i on. Over l appi ng of mat er i al i s not accept abl e.

Pr ovi de No. 3 or 4 f i ni sh f or al l exposed st ai nl ess st eel sur f aces.

Fi ni shes of mat er i al s, ot her t han st ai nl ess st eel , must be compar abl e i n appear ance t o commer ci al mi l l f i ni sh. Exposed sur f aces i ncl ude:

a. Ext er i or sur f aces exposed t o v i ew.

b. I nt er i or sur f aces exposed t o v i ew i n door l ess cabi net s.

2. 2. 2 Fast eni ng Devi ces

Pr ovi de f ast eni ng devi ces of t he same mat er i al as t he met al bei ng j oi ned when j oi nt pi eces ar e of s i mi l ar met al . Fast eni ng devi ces must be st ai nl ess st eel , ASTM A666 when st ai nl ess st eel i s j oi ned t o di ssi mi l ar met al . Pr ovi de mi ni mum 1/ 4- 20 st ai nl ess st eel st ud bol t s wi t h l engt h necessar y t o accept washer s, and r equi r ed nut s, and wel d 9 i nches on cent er maxi mum. Exposed sur f aces of equi pment must be f r ee of bol t s, scr ews, and r i vet heads. Use st ai nl ess st eel st ud bol t s t o f ast en t ops of count er s or t abl es t o angl e f r ami ng and t r i m t o ot her sur f aces. Such bol t s must be t he conceal ed t ype. Cap t hr eads of st ud bol t s whi ch ar e on t he i nsi de of f i x t ur es and ar e ei t her v i s i bl e or mi ght come i n cont act wi t h a wi pi ng cl ot h, wi t h chr ome pl at ed washer s, l ock washer s, and chr omi um- pl at ed br ass cap nut s. Wher ever bol t s ar e wel ded t o t he under si de of t r i m or t ops, uni f or ml y f i ni sh t he r ever se si de of t he wel ds wi t h t he adj oi ni ng sur f ace of t he t r i m or t he t op. Di mpl es at t hese poi nt s ar e not be accept abl e.

2. 2. 3 Wel di ng

2. 2. 3. 1 Wel ds

Use t ungst en i ner t gas pr ocess. Use f i l l er met al compat i bl e wi t h t he mat er i al bei ng wel ded. Do not use car bon ar c wel di ng on t ops of count er s, t abl es, dr ai nboar ds, exposed shel v i ng, or s i nks. Make wel ds duct i l e and of same col or as adj oi ni ng sur f aces.

2. 2. 3. 2 Wel di ng Rods

Per f or m al l wel di ng wi t h wel di ng r ods of t he same composi t i on as t he sheet s or par t s wel ded. Fact or y wel d l ong sect i on component s t o t he gr eat est l engt hs possi bl e t o mi ni mi ze f i el d wel ded j oi nt s.

2. 2. 3. 3 Wel d Qual i t y

Wel d qual i t y must conf or m t o t he r equi r ement s of AWS A5. 8/ A5. 8M, AWS D1. 1/ D1. 1M, AWS D10. 4 and AWS D9. 1/ D9. 1M. Fact or y wel d l ong sect i on component s t o t he gr eat est l engt hs possi bl e t o mi ni mi ze f i el d wel ded j oi nt .

SECTI ON 11 41 11 Page 5

2. 3 PREFABRI CATED WALK- I N REFRI GERATORS AND FREEZERS

Pr ovi de wal k- i n uni t s manuf act ur ed f or f ood ser vi ce use i n accor dance wi t h NSF/ ANSI 7 UL 207, and UL 471. Pr ovi de f l oor panel wal k- i n r ef r i ger at or s and f r eezer s wi t h appr opr i at e i nsul at ed f l oor assembl i es and pol i shed al umi num f i ni sh f l oor .

Pr ovi de pr ef abr i cat ed di spensi ng f r eezer s i n accor dance wi t h t he r equi r ement s of NSF/ ANSI 6.

2. 3. 1 Panel Const r uct i on

I nt er changeabl e, 4 f eet maxi mum wi dt h, 4 i nch t hi ck, f i l l ed wi t h i nsul at i on. Pr ovi de pr ef or med cor ner panel s ext endi ng not l ess t han 12 i nches i n each di r ect i on. Panel s t o have t ongue and gr oove edges or f l ush j oi nt s wi t h doubl e seal ser r at ed neopr ene r ubber gasket s t o assur e ai r and vapor t i ght j oi nt s. Pr ovi de panel s f or separ at i ng sect i ons.

a. I nsul at i on: 4 i nch mi ni mum f oamed- i n- pl ace pol yur et hane wi t h manuf act ur er ' s r at ed R- Val ue of not l ess t han 28, f r ee r i se densi t y of not l ess t han 1. 7 pounds per cubi c f oot , or i n- pl ace densi t y of not l ess t han 2 pounds per cubi c f oot . Pr ovi de f l oor scr eeds wi t h mi ni mum of 2 1/ 2 i nches of f oamed i nsul at i on.

b. Cl osur es: Cl ose t he exposed ext er i or of t he wal k- i n uni t adj acent t o wal l s and cei l i ng wi t h panel s of same mat er i al as used f or ext er i or of wal k- i n uni t panel s.

c. I - Beam Suppor t s: Wher ever compar t ment di mensi on exceeds t he cl ear - span abi l i t y of cei l i ng panel s, pr ovi de I - beam suppor t s on t he ext er i or of t he cei l i ng or suppor t ed by spl i ne- hanger s. I nst al l 1/ 2 i nch di amet er st eel r ods t hr ough beam/ hanger s and secur e t o t he st r uct ur e above. Beams or post s wi t hi n compar t ment s ar e not be accept abl e.

d. Fi ni sh:

( 1) Ext er i or : Al umi num wi t h t wo coat s of whi t e, baked- on enamel pai nt .

( 2) I nt er i or : St ai nl ess st eel .

2. 3. 2 Pr ef abr i cat ed Fl oor Panel s

Pr ovi de pr ef abr i cat ed f l oor panel s of t he same const r uct i on as wal l / cei l i ng except wi t h 14 gauge gal vani zed ski n, seal ed wat er t i ght .

Fi el d appl y one har d al l oy al umi num t r ead pl at e, 3/ 16 i nch t hi ck, wi t h al l j oi nt s caul ked. Pr ovi de nonski d f l oor st r i ps 4 by 36 i nch and f i el d appl y at 12 i nch spaci ng i n al l ai s l es. Pr ovi de pr ef abr i cat ed f l oor panel s l ai d on, wi t h s l opi ng i nt er i or f l oor r amps at ext er i or ent r ance door s wi t h sur r oundi ng bui l di ng f l oor . Fur ni sh t wo set s of er ect i on t ool s, compat i bl e wi t h f ast ener s, wi t h each uni t .

2. 3. 3 Door s

Pr ovi de one per sect i on, wi t h 4 i nch t hi ckness, f i l l ed wi t h i nsul at i on.

Pr ovi de each door panel wi t h an out si de pi l ot l i ght , a l i ght swi t ch and a r emot e bul b sensor wi t h ext er i or f l ush- mount ed, wat er pr oof t her momet er f or r egi st er i ng t emper at ur e i nsi de box. Pr ovi de ant i - condensi ng st r i p heat er s

SECTI ON 11 41 11 Page 6 ar ound t he per i met er of door panel j ambs. Pr ovi de t op and each si de of door wi t h a r esi l i ent , non- magnet i c, or t her mopl ast i c wi t h magnet i c st eel cor e gasket . On bot t om edge of door , pr ovi de a r epl aceabl e, adj ust abl e r ubber or v i nyl wi per gasket .

a. Har dwar e Pol i shed St ai nl ess St eel : Pr ovi de t wo sel f - c l osi ng, spr i ng- l oaded hi nges f or each door . I ncl ude pl at ed st eel pi n and cam- l i f t t ype bear i ng. Pr ovi de door l at ch wi t h cyl i nder l ock and wi t h pr ovi s i ons f or padl ock. I ncl ude saf et y- r el ease handl e t o per mi t openi ng f r om i nsi de when l ocked.

b. Door St ops: Pr ovi de door st ops wher e necessar y, t o pr event wal k- i n r ef r i ger at or and f r eezer door s f r om st r i k i ng adj acent wal l s, pl umbi ng f i xt ur es or f ood ser vi ce equi pment when door i s open.

c. Pr ot ect i ve Bumper s: Equi p t he ext er i or s i des of r ef r i ger at or t hat ar e not i nst al l ed agai nst each ot her or agai nst a wal l wi t h pr ot ect i ve bumper s. Fabr i cat e bumper s f r om ei t her 0. 059 i nch t hi ck gal vani zed st eel or st ai nl ess st eel channel or f r om sol i d r ubber or r ubber - l i ke mat er i al s havi ng a dur omet er har dness of 75pl us 5.

d. Gasket : Pr ovi de ei t her nat ur al or synt het i c r ubber gasket s and i n accor dance wi t h NSF/ ANSI 2. Wher e f r ames ar e used, t he panel s must f i t t oget her wi t h gasket s t hat ar e desi gned f or 50 per cent compr essi on.

2. 3. 4 Ai r f l ow I nhi bi t i ng St r i p Cur t ai ns

Pr ovi de t r anspar ent f l exi bl e v i nyl r ei nf or ced st r i p cur t ai ns anchor ed at t op and abl e t o be r epl aced i ndi v i dual l y. Pr ovi de st r i ps a mi ni mum of 8 i nch wi de and 0. 08 i nch t hi ck.

2. 3. 5 Li ght s

Pr ovi de hi gh ef f i c i ency r at ed t wo- t ube f l uor escent l amps i n vapor pr oof f i x t ur es wi t h saf et y shi el ds. Pr ovi de l i ght i ng i n accor dance wi t h UL 1598.

Pr ovi de di f f user and bal l ast capabl e of oper at i ng i n mi nus 10 degr ees F t emper at ur e. Run l i ght s t he f ul l l engt h of wal k- i n uni t s st ar t i ng 2 f eet f r om f r ont panel and ext endi ng wi t hi n 2 f eet of back panel .

2. 3. 6 I dent i f i cat i on Si gns

Mount engr aved phenol i c pl ast i c compar t ment i dent i f i cat i on s i gns 12 by 2 i nch hi gh i n sel ect ed col or wi t h one i nch hi gh l et t er s on door above vi ew wi ndow.

2. 3. 7 Pr essur e Rel i ef Por t

Pr ovi de el ect r i cal l y heat ed, i nsul at ed pr essur e r el i ef por t .

2. 4 REFRI GERATI ON UNI T SYSTEMS

Pr ovi de i n accor dance wi t h ANSI / ASHRAE 15 & 34 and ASHRAE 189. 1. Pr ovi de pr eassembl ed r emot e condensi ng uni t assembl y wi t h al l necessar y component s f act or y i nst al l ed and wi r ed i ncl udi ng el ect r i cal box, t i me cl ock, dr i er , s i ght gl ass. Mer cur y i s pr ohi bi t ed f or use i n t her momet er s.

Chl or of l uor ocar bon ( CFC) based r ef r i ger ant s ar e pr ohi bi t ed.

Pr ovi de r ef r i ger ant compr essor s, packaged compr essor s and condenser uni t s, and r ef r i ger ant condenser s as speci f i ed i n Di v i s i on 23 of t hese

SECTI ON 11 41 11 Page 7 speci f i cat i ons.

Pr ovi de r ef r i ger at i on syst em equi pment f or col d st or age i n accor dance wi t h Sect i on 23 63 00. 00 COLD STORAGE REFRI GERATI ON SYSTEMS.

2. 4. 1 Moni t or i ng Al ar m Syst em

Pr ovi de an el ect r oni c moni t or i ng and al ar m syst em f or each sect i on of each uni t . Al ar m i s t o war n of abnor mal l y l ow and hi gh t emper at ur es.

a. Syst em component s: Det ect i ng t her most at , mast er cont r ol panel , i nt er connect i ng wi r i ng, and def r ost compensat or . Pr ovi de di al s showi ng t emper at ur es and pi l ot l i ght s, war ni ng l i ght s, swi t ches, t r ansf or mer , and buzzer , al l as a par t of t he mast er cont r ol panel .

Pr ovi de mast er cont r ol panel . Pr ovi de power f use t o pr ot ect syst em component s.

b. Syst em oper at i on: Set al ar ms at 10 degr ees F above and bel ow speci f i ed oper at i ng t emper at ur es.

2. 4. 2 Per sonnel Al ar m

For each uni t , pr ovi de separ at e audi bl e al ar m syst em oper abl e f r om i nsi de uni t , f or use of per sonnel unabl e t o exi t uni t . Locat e r emot e audi bl e al ar m wher e i ndi cat ed.

PART 3 EXECUTI ON

3. 1 I NSTALLATI ON

Do not i nst al l i t ems t hat show vi sual evi dence of bi ol ogi cal gr owt h.

Pr i or t o commencement of i nst al l at i on, per f or m a compl et e wal k t hr ough of t he f aci l i t y wi t h t he Cont r act i ng Of f i cer t o ver i f y r eadi ness f or i nst al l at i on.

Pr ovi de adequat e pr ot ect i on of al l f i ni shed sur f aces, f i x t ur es, f ur ni shi ngs and ot her equi pment t o pr event any damage dur i ng t he i nst al l at i on wor k.

Conduct i nst al l at i on pr ocedur es i n accor dance wi t h ANSI / ASHRAE 15 & 34, ASHRAE 189. 1, NSF Food Equi pment and UL st andar ds st at ed her ei n, and wi t h t he manuf act ur er ' s i nst r uct i ons.

3. 1. 1 Equi pment Connect i ons

Compl et e equi pment connect i ons f or al l ut i l i t i es. Unl ess ot her wi se speci f i ed, pr ovi de st ai nl ess st eel exposed pi pi ng.

3. 1. 2 Pl umbi ng Wor k

Tag al l pl umbi ng f i nal connect i on poi nt s of equi pment , i ndi cat i ng i t em number , name of devi ces or component s, and t ype of ut i l i t y ( wat er , gas, st eam, dr ai n) . Pr ovi de ext ensi ons of i ndi r ect wast e f i t t i ng t o open- si ght hub dr ai n, f l oor s i nk, or f l oor dr ai ns f r om f ood ser vi ce equi pment .

3. 2 TESTS

Per f or m t he t est s as speci f i ed. Not i f y t he Cont r act i ng Of f i cer i n wr i t i ng, 10 days pr i or t o per f or mi ng t est s. Per f or m t est s i n t he pr esence

SECTI ON 11 41 11 Page 8 of t he manuf act ur er ' s r epr esent at i ve and t he Cont r act i ng Of f i cer .

3. 2. 1 I ni t i al St ar t - Up and Oper at i onal Test

Pr ovi de al l l ubr i cant s and accessor i es bef or e i ni t i al st ar t - up. St ar t and oper at e al l equi pment . Fol l ow t he manuf act ur er ' s pr ocedur es and pl ace t he syst ems i n al l modes of oper at i on. Suppl ement i ni t i al char ges of l ubr i cat i ng oi l t o ensur e maxi mum oper at i ng capaci t y. Adj ust al l saf et y and aut omat i c cont r ol i nst r ument s. Recor d manuf act ur er ' s r ecommended r eadi ngs hour l y. Oper at i onal t est s must cover a per i od of not l ess t han 5 days.

Upon compl et i on of st ar t - up and oper at i onal t est s submi t a l i s t of aut hor i zed l ocal ser vi ce and r epai r ent i t i es.

3. 2. 2 Test Repor t s

Submi t f i nal f i el d t est r epor t s f or each syst em t est ed, descr i bi ng t est appar at us, i nst r ument at i on cal cul at i ons, and equi pment dat a based on i ndust r y st andar d f or ms or r easonabl e f acsi mi l es t her eof . I ncl ude i n dat a: compr essor suct i on and di schar ge pr essur e; r ef r i ger ant char ge pump, compr essor and ai r movi ng devi ce amper e r eadi ngs; power suppl y char act er i st i cs, i ncl udi ng phase i mbal ance, wi t h 1/ 2 per cent accur acy;

t her most at i c expansi on val ve super heat - val ue as det er mi ned by f i el d t est ;

subcool i ng; hi gh and l ow r ef r i ger ant t emper at ur e swi t ch set poi nt s; l ow oi l pr essur e swi t ch set poi nt ; def r ost syst em t i mer and t her most at set poi nt s; moi st ur e cont ent ; ambi ent , condensi ng and cool ant t emper at ur es;

capaci t y cont r ol set poi nt s; f i el d dat a and adj ust ment s whi ch af f ect uni t per f or mance and ener gy consumpt i on. Wher e f i nal adj ust ment s and set t i ngs cannot be per manent l y mar ked as an i nt egr al par t of devi ce, i ncl ude adj ust ment and set t i ng dat a i n t est r epor t .

3. 3 MANUFACTURER' S WARRANTY

Submi t al l manuf act ur er s ' s i gned war r ant i es t o Cont r act i ng Of f i cer pr i or t o f i nal commi ssi oni ng and accept ance.

3. 4 CONTRACTOR' S WARRANTY f or I NSTALLATI ON

Submi t cont r act or ' s war r ant y f or i nst al l at i on t o t he Cont r act i ng Of f i cer pr i or t o f i nal commi ssi oni ng and accept ance.

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11 41 11 - REFRIGERATED STORAGE
PART 1 GENERAL
1.1 REFERENCES
1.2 DESCRIPTION OF WORK
1.2.1 Design Requirements
1.3 SUBMITTALS
1.4 SHOP DRAWINGS
1.5 QUALITY ASSURANCE
1.5.1 Pre-Installation Conference
1.5.2 Factory Tests and Certifications
PART 2 PRODUCTS
2.1 MATERIALS
2.1.1 Insulation
2.2 CONSTRUCTION OF FABRICATED EQUIPMENT
2.2.1 Grinding, Polishing, and Finishing
2.2.2 Fastening Devices
2.2.3 Welding
2.2.3.1 Welds
2.2.3.2 Welding Rods
2.2.3.3 Weld Quality
2.3 PREFABRICATED WALK-IN REFRIGERATORS AND FREEZERS
2.3.1 Panel Construction
2.3.2 Prefabricated Floor Panels
2.3.3 Doors
2.3.4 Air flow Inhibiting Strip Curtains
2.3.5 Lights
2.3.6 Identification Signs
2.3.7 Pressure Relief Port
2.4 REFRIGERATION UNIT SYSTEMS
2.4.1 Monitoring Alarm System
2.4.2 Personnel Alarm
PART 3 EXECUTION
3.1 INSTALLATION
3.1.1 Equipment Connections
3.1.2 Plumbing Work
3.2 TESTS
3.2.1 Initial Start-Up and Operational Test
3.2.2 Test Reports
3.3 MANUFACTURER'S WARRANTY
3.4 CONTRACTOR'S WARRANTY for INSTALLATION

File details come from the government source that posted it. Updated .