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7t11.1 Generah Equipmenf shall have a minim��;n peAormance a� the <br />specif�ed ra6ng contlitions nol kss thad the vniues shown in Table 14-1 <br />IhiouBh 14�J I I a nationalty recognizetl certificatan pmgram exisls �or a <br />pmducl covered in Tables 14-1 thmuph 14-3, and it includes pm�isions tor <br />veiification and challenge of equipmen� effwiency ralings, then ihe proAuct <br />shall be lisled in the certificatbn program. <br />1N1.2 Ratir.p ContllNons: Cooling equipment shall be rate0 at ARI test <br />conditions and proceGures when available. Where no applicable <br />procedures exisl, tlata shall be lumishetl by Ihe equipment manufadure�. <br />1471.3 Combin�tlon Space and Service Water Heatinp: For <br />combination space and semce wzlor heaters with a principal �unction ol <br />pmvidmp space heal, lhe Combined Annual EF5cwnq (CAE) may �e <br />wkWztetl by usinp ASHRAE S;andaN 12�-7991. Slorage waler heatere <br />usetl in combina�ion space heat and waler heat applications shail have <br />eithcr an Ener�y FActor (Eq or a CAE ol not less Ihan the lol,iwing� <br />EF CAE <br />< SO.�aI storage 0.58 0.71 <br />50 10 70 pal storage 0.57 0.71 _ <br />> .'0 gal slorage 055 070 <br />1at1.1 Packaged EIecINr Heatinp and Cooling EqulpmonL• Packaged <br />eleclnc aquipment providing bolh heating and cooling with a total cooling <br />capaciry ORaler than 20,000 Btum shall be a heat pump. <br />Exceptlon: Unstaffed equipment shaelters orcabinets used <br />solely for personal wireless service facililies. <br />1N2 Cantmin <br />1412.1 7emperaWro Controls: Each system shall be provided with at <br />least one lemperalure conlrol Aevice. Each zone shall be controlled by <br />individuai ihertnoslatic controls respondinp to temperature wilhin ihe zone. <br />A1 a minimum, each Iloor of a building sholl bo considered as a separale <br />zone. <br />U12.2 Deatlhand Controls: Wl�en used to wnlml both wmloh hcating <br />and cooling, zone Ihermoslatic coNrols shall be capable of a tleadband of <br />al Ieas15 degmes F witliin which Ihe supply ol heatinp and coaling enerpy <br />lo Ihe zone is shut off or reduced lo a mimmum. <br />Excaptlons: <br />1. Speaol acupancy, special usage. or code requiremenls <br />where deadband controls are not appmpnale. <br />2. Buil�ings wmplying wilh Sec6on 1141.4, if in Ihe pmpo5ed <br />building enerBY anatysis, heating and cooliny thermoslal <br />setpoints are sel to the same lemperature betweon 70 <br />degrces F and 75 deBrees F inclusivo, and assumetl to �e <br />constanl throuBhout the year. <br />3. Thermoslals th;l require manual chanpeoverbelween <br />healing , nd cooling modes. <br />1/74.3 Humldity Controls: If a system is eQuipped vrith a mpaas for <br />adtling moisWre, a humidislat shail be provided. <br />1�72.I Setback and Shu40f1; IiVAC syslems shall be equippeA with <br />aulomatic wntrols capable of accomplishing a reduction ol energy use <br />Ihrough wnlrol selback or equipmenl shutdown dwing penoAs of non•use <br />or altemate use of Ihe spaces served by Ihe system. The aulomalic <br />controls shall have a minimum seven-Aay clock and 6e capable of being <br />set tor sevcn tlifler..nt day lypes per week. <br />Exceptiona: <br />1. Syslums servinp amas which requira continuous operation at <br />Ihr, same tempereNre selpofnl. <br />2. Equipment with full load demands of 2 kW @,828 BtWh) or <br />less may be controlled by readily accesaible manual oR-hour <br />controls. <br />7/12.t.1 Dampera: Outside air intakes, ezhaust outlets and relief outlels <br />serving conditi�ned spaces shall be equipped with dampera which cbse <br />aulomatiwlly when ihe syslem is ofl or upon power IaiWre. <br />Exceptlona: <br />1. Syslems serving areas which require continuous operation. <br />2. Combustion air intakes. <br />1112.01 Optimum SteA Conlrols: Healing and coaling syslemswith <br />design supply air capacities exceeding 1�,000 cfm shall have optimum <br />slart coNmis. Oplimum start controls shail bo desipned lo automaticalty <br />ad�ust Ihe start time ol an HVAC system each day lo bnng the space to <br />des�red occupied temperalure levels immetliatety belore scheduled <br />occuDancy. The wNrol alponthm shall, as a minimum, be a tunclion ol lhe <br />diflerence betwec� spaco tempe2ture and oaupied setpoinl and Ihe <br />amounl 01 time pnor to scheduled occupancy. <br />rniuuVmcessm wnums ma� nnwnncc aavma�nna� oco� uaayo u..i..�y <br />statl�up, se4up, and dehost conddions. Thex contmis shall antici0ale <br />need for heat antl use wmpression hea0np as Me first stape of heat. <br />Conlrols shall ind�cate when cupplemental �eating is beinp use0 through <br />visual means (c.p., LED indicators�. <br />1�72.6 Com6uation Heating Epuipmenl Controla: Combustan hea6ng <br />equipment with a capacNy over 225.000 B;ulh shall have motlulaling or <br />slaped wmbustion con�ml. <br />Excepqons�. <br />1. Boilers. <br />2. Radianl Heafcrs. <br />U737 Belaneing: Each air supply outlet or air or water Ierminal device <br />shall have a means'a baiantlng, includmg but not tlmiled to. tlampers, <br />temperature and pressdra tesl conneqions anA Dalancinp valves. <br />1{1: Alr Economizero <br />1t71.7 Op¢ration: Alr ewnomizers shall be of automatically modulaling <br />outside ana retum air dampers lo pmviEe 100 percen� ol fhe desipn supply <br />air as outsitle air �o reE �r.e or eiiminate the need for mechaNcal cooting <br />1NJ.2 Conlrol: Air eennomizeis shail be wn1ro11e0 by a eonhnl system <br />capable of dc1ertnining ,i out�itle air can meet part or all of the Duild���g's <br />cooling loads. <br />U17.31nlegrated Ope2tlon: BUIltling Heatinp Enerpy: Aireconomizers <br />shall �e capable of provi�ing partial cooling even when adCitional <br />mechanical coolinp is required lo meel t�e remainder ol Ne cooling load <br />Conlmis shall nol predude Ihe economizer operalion when mechanicai <br />coolinp is requiretl simultaneously. <br />EMcaptlon: Economimrs on mUividual. direcl expansion. cool�nq <br />systems with capacities nol grealer Ihan 75,000 Btulh may <br />includo controls that limil simWlanetas operation ol tha <br />economizer and mechanical woling for ihe puryose al preventmp <br />icc lortnation on cooling coils. <br />1l11 �uctinp Systems <br />11f t.1 Saaling: Duct vrork which Is desipneC to oVeiate a1 pressures <br />abave 72 inch water column slatic pressure ehall be sealetl in aa�,ordance <br />with Standard RS�78. E�Aent ol sealing reqwreA is as follows� <br />1. Slatic pressure: 1/2 �nch l0 2 iuches; seal transverse joinls. <br />2. Slatic pressure: 2 inches to 3 inches; seal all Iransverse joints <br />antl bngitudinal seams. <br />3. Slatic pressure: above 3 inches; seal all transverse joints. <br />Iongitudinai seams and duct well penetratbns. <br />Duct tape and olher pressure sensilive lape shall nol be used as the <br />primary sealaN whera duHs are desgned �o operate at sUlic pressures ol <br />7 inch W.C. or greater. <br />1171.21nsulation: Duds and plenums Ihat are conslructed and lunction <br />as patl of ihe buildmg envelope, by sepa�a�ing intenor spar.e lrom e�terior <br />space, shall meet all applicable requirements ol Chapler 13. These <br />reqwremenls mGude insulalion installalion, moisWre contml, aii leakage. <br />and building envebpe insulalion levels. Unheated equipment rooms with <br />combustion air louveis must be isola;ed from the conditioneE space by <br />insulating intenor sutlaces tu a minimum o1 R-11 and any evlerior <br />envelope suAaces per Chapler 17. Ou4side air ducis serving individual <br />5upply air units with less lhan 2,800 cfm of tolal supply air capaury shall he <br />insulated to a minimum of R-7 and are not consideree building envelope. <br />Other oulsitle air ducl runs are considered building envelope until Ihey, <br />1. connect lo the heating or cooling equipment, or <br />2. are Isolaled fmm the ekteiior with an aulomatic shul-0H damper <br />tomplying with Sedion 1412.4.1. <br />Once outaide air duc6 meel the above lisled requirements, any runs <br />within conditlonetl space shall com0ly w�lh Table 14�5 repuiremenls. <br />Other duds antl plenums shall be thermalry insulaled per Table 14-5. <br />Eztoptlona: <br />1. Within the HVAC equipment. <br />2. Ezhausl air Aucts not subject lo mndensetion. <br />3. Exposed Auctwork vrithin a zona lhat serves that zone. <br />1�76 Piping Systems <br />1115.1 InsulaUon: Piping shall be thermally insulaled in accomance wilh <br />Table 14�G. <br />EzcepUon: Pipinq inslalletl within unilary HVAC equipment. <br />Water pipes outside the contlilioned space shall be insulaleC In <br />acCordance with Washinglon State Plumbing CoAe (WAC 57•26) <br />1176 Completlon Requlrements (RelerW NREC Section 7416 and the <br />Bmltlmg Commissioning Gwdebnes, pu6lrsheC 6y fhe 8wlUing <br />CommissioningAssociahon.lorrompletefexfsndguidelinestorbudtlmg . <br />complehon and commissionmg reqwrements / <br />R/q <br />