Ukulinganisela Umjikelezo Wokufaka Isihlungi Ngezindinganiso Zekhwalithi Yomoya Wangaphakathi
Umjikelezo wethu wokushintsha izihlungi uyindawo eyodwa lapho isabelomali sezikhungo kanye nezindinganiso zekhwalithi yomoya wangaphakathi zidonsela khona ngezindlela eziphambene. Cindezela umjikelezo isikhathi eside kakhulu bese wonga izindleko zemidiya - bese uwulahlekelwa amandla abalandeli, ingozi yempilo, kanye nokuhlolwa okuhlulekile. Ukufinyeza ngamandla kakhulu bese ushisa imali kuzihlungi ezisenesikhathi esiwusizo. Izikhungo ezikwenza kahle lokhu azikhethi uhlangothi; zakha umjikelezo ozungeze iphuzu lokulinganisela elilinganisiwe phakathi kwezindleko nokuhambisana nomthetho.
Lesi sihloko sichaza ukuthi izindinganiso ze-IAQ ezifana ne-ASHRAE 62.1, ISO 16890 kanye ne-EN 16798-3 zilindeleni ngempela ohlelweni lwakho lokulungisa, kungani Ithini Lokuhlunga yehluleka umsebenzi wayo wokuthobela imithetho ngaphambi kwezaziso zesilinganiso sokucindezela, kanye nohlaka lwezinyathelo ezinhlanu lokusetha umjikelezo wokushintsha isihlungi ovikela ikhwalithi yomoya wangaphakathi ngenkathi ugcina ukusetshenziswa kwesihlungi namandla abalandeli kulawulwa.
Umjikelezo wokufaka esikhundleni sesihlungi — isikhawu esiphakathi kokushintsha kwesihlungi sesigaba esithile se- Uhlelo Lokuhlunga, ngokuvamile ivezwa ngezinyanga noma ngenani le-pressure-drop trigger. Umjikelezo olinganiselayo ugcina zonke izigaba zesihlungi ngaphakathi kwefasitela laso lokusebenza elilinganiselwe, hhayi nje ngaphansi komkhawulo walo omkhulu wokwehla kwengcindezi.
Izinto Ezibalulekile Okufanele Uzicabangele
- Ukuthobela imithetho kuyisimo esigcinwayo, hhayi esifakiwe. Izindinganiso ze-IAQ zicabanga ukuthi izihlungi ziyashintshwa ngaphambi kokuba ukusebenza kubohle — ukuhlolwa kokuhlola kuhlola ukulungiswa kwakho, hhayi ishidi lakho ledatha.
- Ukwehla kwengcindezi kukodwa kuyisibonakaliso sekwephuzile. Ukubola kweshaja ye-electret, ukulamba komoya kanye nokudlula kungaphula ukuhambisana kwe-IAQ kuyilapho i-ΔP isafundeka ngokuthi "kuyamukeleka."
- Ibhalansi = ukusebenza okuqinisekisiwe ngedola. Umjikelezo ofanele yisona sikhathi eside kakhulu ongasifakazela ngezitayela ze-ΔP kanye nokuqinisekiswa kwekhwalithi yomoya — akukho okunye.
- Umklamo wezigaba eziningi udlula ukuhlela okunobuqhawe. Isihlungi sangaphambi kokushintsha esishibhile sivame ukwandisa impilo yenhlawulo ebizayo kanye nezigaba ze-HEPA, ngokuvamile sinciphisa ukusetshenziswa kwe-media okuphelele ngo-15-25%.
- Buyekeza njalo ngekota, lungisa ngokwezinkathi. Uthuli luhamba ngezinkathi zonyaka kanye nomsebenzi wokwakha; uhlelo oluhleliwe lwezinyanga ezingu-12 luyisibikezelo, hhayi iqiniso.
Ingxabano Efihliwe: Ukuhlunga Impilo vs. Ukuhambisana Nezindinganiso
Isihlungi ngasinye kuyunithi yakho yokuphatha umoya siyinto yezindleko kanye nedivayisi yokuthobela imithetho ngesikhathi esisodwa. Ezezimali zibona izinto ezisetshenziswayo okufanele zisebenze isikhathi eside ngangokunokwenzeka. Izindinganiso ezilawula isakhiwo sakho — i-ASHRAE 62.1 yokungenisa umoya, i-EN 16798-3 eYurophu, i-ISO 16890 yokuthi izihlungi zilinganiswa kanjani, i-WELL kanye ne-LEED uma ulandela isitifiketi — bheka isici sokulawula okumele siqhubeke nokusebenza ngaso sonke isikhathi.
Nasi isimo esinzima amaqembu amaningi okulungisa angasiboni: amazinga alawula isimo esigciniwe sohlelo, hhayi isimo salo esifakiwe. I-ASHRAE 62.1 idinga ukuthi izinhlelo zokungenisa umoya zisebenze futhi zigcinwe ngokuhambisana nenhloso yokuklama. I-EN 16798-3 iyaqhubeka futhi inika amakilasi okulungisa ukuhlunga (M1, M2, M3) anquma ukuthi kangaki ahlinzeka-isihlungi somoyakumele kuhlolwe futhi kushintshwe. I-ISO 16890 ikala isihlungi kumidiya ehlanzekile, efakwe elabhorethri — isilinganiso singumkhawulo ophezulu lapho isihlungi sakho sangempela sisondela khona kuphela uma sisha.
Umphumela osebenzayo: isihlungi esidlule ngo-20% endaweni yaso yokushintsha enengqondo asiphuthi kakhulu. Siphuthi kancane - ukugeleza komoya okuncane, ukudlula kancane, isilinganiso se-PM2.5 sangaphakathi esikhuphuka kancane esingekho muntu osibekayo kuze kube yilapho umqashi ekhononda noma i-audit ikubeka uphawu. Okwamanje "ukonga" kokwelula umjikelezo kubonakala kusabelomali, yingakho izikhungo eziningi kangaka zithuthukisa inombolo engalungile.
Sebenzisa izihlungi isikhathi eside
Ukusetshenziswa kwemithombo yezindaba okuphansi, amahora okusebenza ambalwa — kodwa amandla abalandeli akhuphukayo, ukukhubeka ekusebenzeni kahle okulinganiselwe, kanye nokuvezwa kokuhlolwa kwamabhuku.
Shintsha izihlungi ngokushesha
I-IAQ ihlala ngaphakathi kwesilinganiso esijwayelekile, isilinganiso se-PM sangaphakathi/sangaphandle sihlala siphansi — kodwa ulahla izihlungi ngokuphila kwangempela okusele.
Lokho Okudingwa Yizindinganiso ze-IAQ Ngempela Esitimeleni Sakho Sokuhlunga
Ngaphambi kokuthi ulinganisele noma yini, udinga ukwazi ukuthi indinganiso ngayinye ifunani — futhi, okubaluleke kakhulu, ukuthi yini engayidingi. Ithebula elingezansi libonisa amazinga avame ukucashunwa kumathenda e-HVAC ezentengiselwano ezigabeni zokuhlunga ezithintayo nokuthi zisho ukuthini ngomjikelezo wakho wokushintsha.
| Okujwayelekile | Lokho okubusayo | Imfuneko ehlobene nesihlungi | Umphumela womjikelezo wokufaka esikhundleni |
|---|---|---|---|
| I-ASHRAE 62.1-2019/2022 | Umoya opholile kanye nekhwalithi yomoya wangaphakathi (e-US, eyamukelwa kabanzi) | Ukuhlunga okuncane kwe-MERV 8; I-MERV 13 yezindawo eziningi ezine-PM2.5 yangaphandle ephakeme noma amakhredithi esitifiketi | Ukuhlunga kumele kugcinwe ngomklamo ngamunye; qinisekisa ukusebenza okungenani njalo ngonyaka, noma ngokushesha uma izinzwa ziphakamisa ukuzulazula |
| EN 16798-3:2017 | Umoya wokungenisa umoya ezakhiweni ezingezona ezokuhlala (eYurophu) | Amakilasi okuhlunga umoya (ePM1/ePM2.5/coarse) kanye namakilasi okulungisa M1–M3 | Ikilasi lokulungisa lichaza izikhawu zokuhlola eziphezulu kanye nokushintshashintsha — ipharamitha yokuklama, hhayi isiphakamiso |
| I-ISO 16890 | Indlela yokulinganisa ukusebenza kahle kokuhlunga | i-ePM1 / ePM2.5 / ePM10 / izilinganiso eziqinile ezihlolwe kumidiya ekhishwe, elungisiwe | Izilinganiso sezivele zicabanga ukuthi imidiya endala — hlela umjikelezo wakho ngesimo esiwohlokile, hhayi isihlungi esisha |
| UMTHOMBO v2 / LEED | Isitifiketi sezempilo yesakhiwo | Ukuhlunga kwezinhlayiya ze-MERV 13 noma okungcono; ukuqapha okuqhubekayo kwe-PM2.5 kulindeleke | Ukuhlolwa kwezitifiketi kubheka ubufakazi obubhalwe phansi bokuthi ukuhlunga kuhlale kusebenza phakathi kwezinguquko |
| Isithasiselo 1 se-EU GMP (2022) | Izindawo zokuhlanza zemithi | Izihlungi ze-HEPA zetheminali, ukuhlolwa kokuvuza, ukuqapha okuqhubekayo kwe-ΔP | Ukushintshashintsha kuqhutshwa yimiphumela yokuhlolwa kanye nokubalwa kwezinhlayiya, hhayi ngekhalenda kuphela |
| Iziqondiso ze-WHO AQG 2021 / ze-IAQ zikazwelonke | Izinhloso zokuchayeka ezisekelwe empilweni | Amanani okuqondisa angaphakathi e-PM2.5 (isb., imigomo yesikhashana yonyaka kusukela ku-35 kuya ku-10 µg/m³) | Uma i-PM2.5 yangaphakathi ikhuphuka ngaphezu kwethagethi kuyilapho amazinga angaphandle ejwayelekile, umjikelezo wokufaka esikhundleni usuvele umude kakhulu. |
Phawula iphethini: yonke indinganiso ebalulekile iphelela ekuqinisekisweni. Akekho kubo okutshela ukuthi ushintshe izihlungi ngosuku oluthile. Bakutshela ukuthi ugcine ukusebenza ngaphakathi kwemvilophu echaziwe - futhi lokho kushintsha wonke umbuzo kusuka kokuthi "kufanele ngishintshe nini isihlungi?" kuya kokuthi "ngifakaza kanjani ukuthi isihlungi sisasebenza?"
Izindlela Ezintathu Isihlungi Ehluleka Ngazo Ngaphambi Kwezaziso ze-ΔP
Izinhlelo eziningi zokulungisa zibheka ingcindezi ehlukene njengomthombo owodwa weqiniso. Kuyisibonakaliso esihle - kodwa sekwephuzile. Eminyakeni yami yokukhiqiza nokuhlola izihlungi zezentengiselwano, ngibone izindlela ezintathu zokwehluleka eziphula ukuhambisana ne-IAQ kuyilapho i-pressure gauge isafundeka ngokuthi "evamile."
1. Ukubola kweshaja ye-electret: ukusebenza kahle okuphela buthule
Izihlungi zemidiya zokwenziwa (amaphaneli amaningi anezinsika kanye nezihlungi eziningi zezikhwama) zibamba izinhlayiya ze-sub-micron ngokushaja kwe-electrostatic, hhayi nje ukucindezelwa ngokomzimba. Leyo shaja iyabola ngokuhamba kwesikhathi, futhi ibola ngokushesha emoyeni omanzi noma ongcolile ngamakhemikhali. Isihlungi esisha se-MERV 13 esinezinsika singabamba u-60-70% wezinhlayiya ezicishe zibe ngu-0.3-0.4 µm; isihlungi esifanayo ngemva kwezinyanga ezintathu, lapho ingcindezi yehla, singabamba kancane kakhulu ngaleso sayizi esibucayi. Yingakho i-ISO 16890 ibeka futhi ikhiphe imidiya yokuhlola ngaphambi kokuyilinganisa: indinganiso isivele icabanga ukuthi isihlungi esikhathele yiso isihlungi sangempela. Uma uhlela izinguquko kusuka kudatha ye-fresh-filter, uhlela isihlungi esingasekho.
2. Ukuntuleka komoya: ukushoda komoya
Njengoba imidiya ilayisha, ukumelana kuyakhuphuka. Ifeni eqhutshwa yi-VFD ifinyelela umkhawulo wayo womthamo - futhi ngemva kwalokho, ukugeleza komoya okulethwe kuyehla. Amazinga omoya ancipha ngaphansi komklamo we-ASHRAE 62.1, amazinga e-CO₂ kanye nokungcola ayakhuphuka, futhi isikhala asihambisani ngokusemthethweni yize igeji ye-ΔP ingakaze ifinyelele endaweni yayo "yokushintsha isihlungi". Igeji ayizange ilale; yayimane ilinganiswe ukuze kuvikelwe isihlungi, hhayi ukuze kuvikelwe umoya.
3. Ukuqhekeka kwe-Bypass kanye ne-gasket: indlela enqamulelayo engahlungiwe
Izihlungi aziphumeleli kuphela kuma-media. Amafreyimu ayagoba, ama-gasket athatha isethi yokucindezela, ama-pleat packs ahlukene nohlaka — futhi umoya uthola indlela yokumelana okuncane kakhulu eduze kwama-media. I-ΔP yebhange lesihlungi ingahlala iphilile ngokuphelele ngoba umoya awusadluli esihlungini. Ama-particle counters ezansi komfula yiwona kuphela ufakazi onokwethenjelwa. Uma uthembela ku-ΔP kuphela, ibhange lesihlungi elidlule libukeka lifana neliphilile.
Engeza ugibe lwesine, olucashile: ithafa lokugcwala. Uma i-media isigcwele ikhekhe, ijika layo lokwehla kwengcindezi liyathamba — i-ΔP iyayeka ukukhuphuka isikhashana. Amaqembu abona ukufundwa okuzinzile, acabange ukuthi i-filter ilungile, bese eqa ushintsho. I-filter ayilungile; imane iphelelwe yikhanda, futhi noma yikuphi ukulayisha okwengeziwe kuzokhuphuka ngamandla i-ΔP noma kubhidlize i-media.
Izimpawu Ezintathu Okufanele Zilawule Umjikelezo Wakho
Umjikelezo wokushintsha isihlungi olinganiselayo ubangelwa ubufakazi, hhayi ikhalenda. Sebenzisa uhlelo lwakho kulezi zimpawu ezintathu, ngale ndlela yokubaluleka:
1. ΔP maqondana nesimo sokuhlanzeka
Landelela ukwehla kwengcindezi ngokumelene nenani lokuqala kwempilo yesihlungi ngasinye, hhayi ngokumelene nenani eliphelele lemboni. Isibangeli esivamile: shintsha izigaba ezincane kanye ne-HEPA ku-2–2.5× ΔP ehlanzekile, izigaba eziyinhloko ku-3×. Amathrendi abaluleke kakhulu kunokufundwa okukodwa.
2. Ukuqinisekiswa kwekhwalithi yomoya
Qaphela i-PM2.5 yangaphakathi uma iqhathaniswa neyangaphandle (futhi inani lezinhlayiya libalwa emakamelweni ahlanzekile). Lapho isilinganiso sangaphakathi/sangaphandle sikhuphuka ngaphezu kwesisekelo sakho, isigaba esingaphezulu siyalahlekelwa yimpi - sishintshe ngaphambi kokuba isigaba sokugcina sihlupheke.
3. Ukuhlolwa ngokomzimba
Ukudluliswa kokukhanya ngemidiya, amaphethini okubona uthuli, isimo se-gasket, ukuvela kwephunga. Ukuhlolwa okubonakalayo kwemizuzwana engama-30 kubamba ukudlula kanye nokugcwala okungekho sensor emgudwini ozokubika.
Umthetho ulula: shintsha ku-trigger yokuqala, buyekeza isitimela sonke, bese ubhala phansi ushintsho ngalunye. Isihlungi esifinyelela ku-trigger yaso ye-ΔP ezinyangeni ezine sikutshela okuthile ngezigaba eziphezulu kanye nomoya wangaphandle - hhayi nje ngokwawo. Umjikelezo wakho kufanele uphinde uthathwe kulezo zingodo, yingakho isinyathelo sokubuyekeza esingezansi singeyona into ongayikhetha.
Uhlaka Lwezinyathelo Ezi-5 Lokulinganisela Izindleko Nokuthobela Imithetho
Nansi inqubo esiyisebenzisayo lapho sisiza amakhasimende ukuthi akhe kabusha izinhlelo zawo zokulungisa izihlungi. Isebenza ehhovisi elinezihlungi ezimbili i-AHU kanye nesitimela semithi esinezigaba ezinhlanu.
Chaza inhloso yokuthobela imithetho
Yiliphi izinga elisebenza endaweni ngayinye? MERV 8, MERV 13, ePM1 60%? Bhala phansi imvilophu ngayinye yokuphatha umoya.
Mepha isitimela siye endaweni okuqondiswe kuyo
Nika isigaba ngasinye umsebenzi: isihlungi sangaphambi kokuhlunga sivikela isigaba esihle, isigaba esihle sivikela isikhala. Asikho isigaba okufanele sithwale imisebenzi emibili.
Setha imikhawulo ye-trigger
Ngesigaba ngasinye: isisekelo se-ΔP esihlanzekile, i-ΔP eshintshiwe, kanye nesibonakaliso sekhwalithi yomoya esidlula kokubili.
Kala, bhala phansi, buyekeza
Ukubuyekezwa kwekota kuhambisana nokuhlolwa. Lungisa ngokwezinkathi — isizini yomswakama, uthuli lokuvuna, ukwakhiwa, impova.
Kabusha uma ilwa nawe
Uma izihlungi ezincane zifa ngokushesha, engeza umthamo ophezulu esikhundleni sokuhlela izinguquko zobuqhawe ezansi komfula.
Izinyathelo 1-3 zithatha ntambama. Isinyathelo 4 yilapho imali egciniwe ikhona khona: izikhungo ezibuyekeza njalo ngekota zivame ukwandisa imijikelezo yesigaba esihle ngo-20-40% ngezilinganiso zokuthobela imithetho ezingcono, ngoba ziyeka ukushintsha izihlungi ngokuqagela.
Yakha Isitimela Ukuze Umjikelezo Uzilinganisele
Indlela ethembeke kakhulu yokulinganisela umjikelezo wokufaka esikhundleni ukuyeka ukucela isihlungi esisodwa esibizayo ukuthi senze konke. Ukuhlunga okunezigaba eziningi kuyindlela eyenza imijikelezo emide yezigaba ezincane ihambisane nezindinganiso eziqinile ze-IAQ - ngoba izigaba ezingenhla zimunca isijeziso.
Ilungiselelo elijwayelekile lokusebenza okuphezulu libukeka kanje:
- Isigaba 1 — isihlungi sangaphambi kokuhlunga: okungabizi kakhulu isihlungi esiyinhloko sohlaka lwephepha (G3–G4 / ISO Coarse) ishintsha njalo ezinyangeni ezingu-3–4. Ibamba ingxenye enkulu yomthwalo wothuli — ngokuvamile u-60–80% wobunzima obungena ku-AHU — ngengxenye encane yezindleko zesigaba esincane.
- Isigaba 2 — isihlungi sokuthobela imithetho: izihlungi zephaneli ezinezimbobo ezisebenzayo eziphakathi nendawo kububanzi be-MERV 8–13 / ePM1 ezihlangabezana nemfuneko ye-ASHRAE 62.1 noma ye-EN 16798-3 yesikhala. Zivikelwe yisihlungi sangaphambi kwesikhathi, zihlala zisebenza izinyanga eziyi-12–18 esikhundleni sezi-6.
- Isigaba 3 — isivikelo sokugcina (lapho kudingeka khona): izihlungi ze-HEPA ezincane ezingenazo izingxenye amakamelo okuhlanza, izibhedlela kanye namalebhu — ngokulindela okubhaliwe kwezinyanga ezingu-24–36+ lapho izigaba ezingenhla zigcinwa khona.
Sebenzisa izinombolo ohlelweni lwehhovisi olunezikhundla ezingu-200. I-MERV 13 yesigaba esisodwa ishintsha kabili ngonyaka ngo-$28 ngayinye: $11,200 ngonyaka. Manje yihlele: isihlungi sephepha se-G4 sangaphambi kohlaka ku-$4 sishintsha kane ngonyaka ($3,200) kanye ne-MERV 13 yokugcina eshintshiwe kanye ngonyaka ($5,600). Isiyonke: $8,800 — ukwehla okungu-21% ekusetshenzisweni kwemidiya, lapho isigaba esincane sisebenza engxenyeni encane yomthwalo wothuli kanye nesilinganiso esikhulu sokuthobela imithetho. Amandla efeni nawo ayancipha, ngoba ukwehla kwengcindezi yesihlungi esincane akukaze kukhuphukele endaweni eyingozi.
Umthetho osebenzayo ovela elabhorethri yethu yokuhlola: Uma isigaba senhlawulo noma se-HEPA sibona umthwalo wothuli ongaphezu kuka-10–15% womfula ongaphezulu, isitimela asilingani. Engeza noma uthuthukise isihlungi sangaphambi kokwenza izinto esikhundleni sokwamukela ukushintshashintsha kwesigaba esinqunyiwe kusenesikhathi.
Ucwaningo Lwesibonelo: Ukulinganisa Kabusha Umbhoshongo Wehhovisi Onezitezi Eziyi-12
Kusukela ku-roulette yekhalenda kuya kubhalansi eqinisekisiwe
Umbhoshongo wehhovisi onezitezi ezingu-12 — izikhundla zokuhlunga ezingu-180, imfuneko ye-ASHRAE 62.1 MERV 13, edolobheni elineziqongo ze-PM zesizini — wawusebenzisa izihlungi ze-MERV 13 zesigaba esisodwa kukhalenda eqinile yezinyanga ezingu-6. Ukusetshenziswa kwemithombo yezindaba kwakuphezulu, futhi phakathi namasonto anomswakama, i-PM2.5 yangaphakathi yayikhuphuka ngokuphindaphindiwe ngaphezu komgomo wesakhiwo ongu-25 µg/m³ (umgomo wesikhashana we-WHO 2).
Sakha kabusha uhlelo: izihlungi zangaphambi kwe-G4 kuwo wonke amabhange e-AHU, izithumeli ze-ΔP kuzo zonke iziyunithi eziyinhloko, inzwa eyodwa ye-PM2.5 ngesitezi ngasinye, kanye nokushintsha okuqondiswe kukhalenda lokuhlolwa kwekota. Izihlungi zangaphambi kwenyanga zazishintshwa kane ngonyaka; ama-MERV 13 okugcina kanye ngonyaka, kanye nokuhlolwa kokusebenza kahle kwesampula yamayunithi asusiwe.
Isifundo kwakungesona "ukushintsha izihlungi kancane." Kwakuwukuthi umjikelezo oqhutshwa idatha, ohleliwe ngezigaba ushintshe izihlungi ezifanele ngesikhathi esifanele - futhi lokho kuhlanganiswa kwenzeka ukuthi kubize kancane. Isibonelo esimele ngokusekelwe kokuhlangenwe nakho kwethu ensimini; imiphumela yangempela iyahlukahluka ngokwezimo zokwakha.
imibuzo ejwayelekile ukubuzwa
Ingabe ukwelula umjikelezo wokufaka esikhundleni sesihlungi kwephula i-ASHRAE 62.1?
Yimuphi umjikelezo wokufaka esikhundleni isihlungi ophephile isikhathi eside kunayo yonke?
Kungani isihlungi sami esisha sibonakala singasebenzi kahle ngemva kwezinyanga ezimbili?
Ingabe ama-transmitter e-ΔP ayakufanelekela isakhiwo esincane?
Ingabe isihlungi se-HEPA singahlala isikhathi esingaphezu kweminyaka emithathu?
Isiphetho: Umjikelezo Uyipharamitha Yokuthobela
Umjikelezo wokushintsha isihlungi awuyona i-notebook yokulungisa — uyipharamitha yokuthobela imithetho enesabelomali esinamathiselwe. Izikhungo ezilinganisela ngempumelelo zabelana ngomkhuba owodwa: zishintsha ikhalenda ngobufakazi. Zichaza indinganiso okumele zihlangabezane nayo, zinikeze isigaba ngasinye sesihlungi umsebenzi ocacile, zibangele izinguquko ku-ΔP kanye nezimpawu zekhwalithi yomoya, futhi zibukeze uhlelo lonke njalo ngekota.
Uma kwenziwe kahle, ibhalansi ayiyona into evumelanayo nhlobo. Umjikelezo wokushintsha isihlungi ohleliwe, oqinisekisiwe, uletha ikhwalithi yomoya yangaphakathi engcono, ukusetshenziswa kwemidiya okuphansi, kanye namandla amancane abalandeli - ngasikhathi sinye. Okuwukuphela kwento oyidelayo ukukhohlisa okukhululekile kokuthi ishejuli ehleliwe yayikuvikela.
Awuqiniseki ukuthi iphi ibhalansi yakho?
Onjiniyela be-KWS bangabuyekeza isitimela sakho sokuhlunga futhi bakusize uchaze imingcele yokuqalisa ekugcina ngaphakathi kwe-ASHRAE 62.1, ISO 16890 noma i-EN 16798-3 — ngaphandle kokusebenzisa imali eningi kumidiya.
Khuluma nonjiniyela wokuhlunga