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Kayan aikin auna suna aiki azaman mahimman masu raba matsin lamba a cikin sake zagayowar sanyaya bugun jini. Ta hanyar ƙirƙirar ƙarancin raguwar matsin lamba tsakanin ɓangaren mai ƙarfin ƙarfin ƙarfin lantarki da ɓangaren mai ƙarancin ƙarfin lantarki, suna daidaita kwararar mai sanyaya zuwa cikin mai ɓarnatar. Ba tare da cikakken iko akan wannan kwararar ba, tsarin ba zai iya kula da ingantaccen zafi ba, yana fuskantar haɗarin lalacewar kwampreso daga slugging na ruwa ko shan wahala daga rashin ƙarfi da inganci.

Fahimtar Kayan Aikin Fadada Tsarin HVAC

Kayan fadada yana yin ayyuka biyu masu mahimmanci: yana auna adadin mai sanyaya a cikin mai ɓoye don dacewa da nauyin zafi, kuma yana samar da raguwar matsa lamba da ake buƙata don ba da damar mai sanyaya ya tafasa a zafin jiki na saturation da ake so. Hanyar da yake cim ma wannan ta bambanta ta hanyar zane, amma duk na'urorin fadada suna aiki bisa ka'idar taƙaita kwararar don ƙirƙirar bambancin matsa lamba. Lokacin da ruwan mai ƙarfi ya wuce ta cikin ramin bawul, matsawarsa ta sauka kwatsam, yana sa wani ɓangare na ruwan ya yi walƙiya zuwa tururi. Wannan cakuda na biyu sannan ya shiga cikin mai ɓoyewa a ƙananan matsa lamba da zafin jiki, a shirye don shawo zafi daga sararin da aka daidaita.

Masu fasaha dole ne su fahimci cewa na'urar fadadawa wani bangare ne a cikin tsarin da aka dace da shi. Saɓo a cikin cajin refrigerant, girman layi, ko aikin condenser kai tsaye yana shafar ikon na'urar fadadawa don daidaitawa. Lokacin da ake gano tsarin, bincika aikin na'urar fadadawa ta hanyar auna matsi da zafin jiki yana ba da taga kai tsaye ga lafiyar tsarin. Na'urar fadadawa mai aiki da kyau tana kiyaye kwanciyar hankali, sarrafawa superheat a ƙarƙashin kaya daban-daban, yana kare kwampreso yayin da yake haɓaka ƙimar mai ɓoyewa.

Babban Nau'in Na'urorin Ƙara

Ƙarfin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin

TXVs suna mamaye kayan aikin zama na zamani da na kasuwanci saboda ikon su na daidaita kwararar dangane da ainihin buƙatar mai ɓarna. Valve yana amfani da kwanon rufi mai nisan nesa wanda aka haɗa da layin tsotsa a tashar mai ɓarna. Wannan kwanon rufi yana ƙunshe da cajin mai sanyaya wanda ke haifar da matsin lamba akan diaphragm a cikin shugaban ƙarfin bawul. Yayin da zafin jiki na tsotsa ya tashi (yana nuna ƙarin ɗorawar zafi), matsin lamba na bulb yana ƙaruwa, yana buɗe bawul ɗin gaba ɗaya. Lokacin da zafin jiki na tsotsa ya ragu, bawul ɗin ya rufe kaɗan. Wannan aikin sarrafa kansa yana ba TXV damar kiyaye yanayin zafi mai yawa ba tare da la'akari da canje-canje ba.

TXVs na zamani suna zuwa a cikin nau'ikan caji daban-daban, gami da caji na giciye-ruwa da cajin adsorption, kowannensu an tsara shi don iyakance matsakaicin matsin aiki (MOP) da kare kwampreso yayin farawa. Gudanar da TXVs yana buƙatar kulawa sosai ga sanya fitilar mai jiwuwa Dole ne a saka shi a kan ɓangaren kwance na layin tsotsa, yawanci a matsayin 4 ko 8 na safe, kuma a keɓe shi don hana karatun ƙarya. Dole ne a shigar da layin daidaitawa na waje daidai a ƙasa da fitilar don rama raguwar matsa lamba a cikin mai ɓoyewa.

Ƙarfin lantarki na faɗaɗa (EEVs)

EEVs suna wakiltar fasaha mafi ci gaba da aunawa a halin yanzu a cikin amfani. Wadannan bawul suna amfani da motar stepper ko wani nau'in ƙarfin lantarki mai daidaitawa don buɗewa da rufe rami tare da daidaito mai yawa. Kai tsaye sarrafawa ta hanyar mai kula da lantarki na tsarin, EEVs suna aiwatar da shigarwa daga firikwensin da yawa, gami da matsin sha, zafin jiki na tsotsa, zafin jiki na fitarwa, da zafin jiki na ɓoyayyen mai ɓoye. Mai kula yana amfani da waɗannan bayanan don lissafin ainihin matsayin bawul da ake buƙata don cimma babban zafi mai yawasau da yawa a cikin ƙananan digiri.

EEVs suna ba da gagarumin haɓaka inganci, musamman a ƙarƙashin yanayin ɗaukar nauyi, saboda suna kiyaye kyakkyawan zafi mai zafi a cikin yanayin aiki mai yawa. Su ne kayan aiki na yau da kullun akan tsarin kwararar mai sanyaya mai sauyawa (VRF).

Ƙarƙashin ƙwayoyin cuta

Tubes na capillary sune na'urori masu fadada mafi sauki, wanda ya kunshi tsayin tsayi na ƙananan bututu. Suna dogaro gaba ɗaya da lissafin bututu tsawon kuma diamita na ciki don ƙirƙirar raguwar matsa lamba da ake buƙata. Ana samun tubes na capillary a cikin ƙananan tsarin sanyaya, raka'a na taga, da masu cire zafi. Suna da arha amma suna da matukar damuwa ga cajin refrigerant da nauyin tsarin. Idan cajin ya kashe ko da ƙaramin adadin, tsarin zai kashe mai ɓarna ko kuma ya mamaye ruwa zuwa kwampreso.

Lokacin maye gurbin bututun capillary, masu fasaha dole ne su auna ainihin tsawon bututun asali da diamita na ciki. Yanke sabon bututun zuwa tsawon daidai yana buƙatar daidaito, kuma bututun dole ne ya kasance mai tsabta kuma ba tare da kinks ba. Ko da karamin lankwasawa na iya canza halaye na saukowar matsa lamba. Tubutun capillary kuma suna buƙatar lokacin daidaita matsa lamba yayin ƙetare sake zagayowar saboda basu da wata hanyar rufewa, wanda ke ba da damar mai sanyaya don ƙaura zuwa lokacin da matsin lamba ya daidaita. Wannan halayyar ta sa su zama marasa dacewa ga tsarin da ke buƙatar saurin farawa bayan gajeren sake zagayowar.

Na'urorin da aka gyara na'urar (Pistons)

Na'urorin ƙirar ƙira, wanda galibi ake kira piston ko na'urorin ƙididdigar ƙuntatawa, sun ƙunshi ƙarfe mai ƙira mai ƙira da aka ƙera daidai da ƙirar ƙira mai ƙira. An yi amfani da su sosai a cikin tsofaffin tsarin iska mai rarraba kafin TXVs su zama misali. Kamar bututun capillary, suna ba da ƙuntatawa mai ƙira kuma ba sa daidaitawa da canje-canje a cikin ɗorawa. Wannan yana nufin dole ne a daidaita su da kyau bisa ga ƙirar tsarin, kuma suna yin aiki mafi kyau a ƙarƙashin kwanciyar hankali, cikakken ɗorawa yanayi.

A cikin tsarin da aka sanya, masu fasaha dole ne su kula sosai da hatimin O-ring a jikin piston, don tabbatar da cewa ba a lalata shi ko bushe shi ba.

Ƙididdigar Ayyukan Tsarin Tsarin

Don sarrafa na'urorin fadada yadda yakamata, mai fasaha dole ne ya fahimci ma'auni waɗanda ke nuna aiki mai kyau. Superheatda zafin jiki na mai sanyaya mai sanyaya sama da yawansa a wurin fitar da ɓarna shine babban mai nuna alama ga TXVs da EEVs. A kwanciyar hankali superheat tsakanin 6 ° F da 12 ° F a yanayin kwanciyar hankali yana nuna cewa na'urar fadada tana auna kwararar da kyau.

Lokacin da na'urar fadada ke aiki daidai, tsarin ya kamata ya nuna tsauraran iko na waɗannan sigogi a ƙarƙashin kaya daban-daban. Idan superheat yana canjawa sosai (farauta), na'urar fadada na iya zama ba daidai ba, kwan fitila na iya zama ba daidai ba, ko cajin mai sanyaya na iya zama kashe. Ga EEVs, superheat mara kyau na iya nuna matsalar karatun na'ura mai ba da labari, kuskuren algorithm na mai kula, ko matsalar haɗin lantarki. Masana waɗannan ƙididdigar bincike suna da mahimmanci ga kowane mai fasaha wanda ke aiki tare da na'urorin fadada.

Kayan da Za a Yi Gyara

Matsayi da kuma kafawa

An fara shigarwa ta hanyar sanya na'urar fadadawa kusa da mai ɓarna kamar yadda ya dace. Layin mai tsawo tsakanin bawul da mai ɓarna na iya haifar da raguwar matsa lamba da jinkirin amsawa, rage ingancin tsarin. Don TXVs, dole ne a shigar da fitilar mai ƙira a kan ɓangaren kwance na layin tsotsa, yana tuntuɓar farfajiyar bututu. Dole ne a toshe fitilar sosai kuma a rufe shi gaba ɗaya da tef na kumfa ko mai rufi na musamman don hana yanayin zafin jiki na kewaye ya shafi karatun sa.

Ga EEVs, yanayin jikin bawul yana da mahimmanci. Masu kerawa galibi suna ƙayyade cewa a shigar da bawul tare da ƙofar motar a tsaye ko a cikin wani digiri na gangara. shigar da bawul a sama da ƙasa ko a gefensa na iya haifar da ɗaurewar ciki ko rashin daidaita tsarin auna.

Yin Waya da kuma Waya

Brazing yana daya daga cikin wuraren da suka fi dacewa da rashin cin nasara yayin shigar da na'urar fadada. Zafin jiki mai yawa yana tafiya cikin sauri ta bututun jan ƙarfe kuma yana iya lalata abubuwan bawul na ciki, gami da diaphragms, kayan haɗin bazara, da kuma injin matakai. Koyaushe cire shugaban wutar daga TXV da firikwensin lantarki daga EEV kafin a yi amfani da zafi ga haɗin. Yi amfani da rigar rigar mai zafi ko cakuda wanke zafi a jikin bawul don ƙarin kare shi. Masu fasaha masu sana'a suna amfani da tsabtace nitrogen a 12 psi ta hanyar tsarin yayin brazing don hana ƙwayoyin oxidation na ciki da ƙirar girma. Waɗannan gurɓataccen abubuwa zasu toshe cikin sauri ramin bawul ɗin ko lalata farfajiyar sealing.

Bayan brazing, bari haɗin su sanyaya ta halitta. Kada ku kashe shi da ruwasake sanyaya mai sauri na iya haifar da ƙarfe ya ragu ba daidai ba, wanda ke haifar da haɗin haƙa ko ɓarkewar bawul. Da zarar an sanyaya, sake haɗawa da kai ko coil, tabbatar da haɗin lantarki yana da tsabta da bushe. Bin ƙa'idodi kamar ƙa'idodin ASHRAE 15 don amincin tsarin sanyaya da ƙa'idar ASHRAE 34 don rarraba kayan sanyaya yana ba da ingantaccen tsari don ayyukan shigarwa a cikin tsarin kasuwanci.

Hanyoyin Wutar Lantarki don EEVs

Ana buƙatar haɗawar lantarki ta lantarki daidai. Yi amfani da madaidaicin waya mai ma'auni wanda masana'antun suka ƙayyade don motar matakai ko madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaidaicin madaida

Bayan haɗa wayoyi, gudanar da binciken ci gaba kuma tabbatar da cewa bawul ɗin yana amsawa daidai ga siginar mai kula. Masu kula da zamani da yawa na iya shiga bawul ɗin ta hanyar buɗewa-kusa- buɗe sake zagayowar yayin farawa don tabbatar da aiki. Yin watsi da ingancin haɗin lantarki na iya haifar da aiki na bawul mai katsewa, yana haifar da rashin kwanciyar hankali na tsarin da lalacewar kwampreso mai yuwuwa daga ambaliyar ruwa.

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Binciken da Ake Yi a Kullum

A lokacin aikin kulawa, bincika na'urar fadada don alamun lalata, ɓarnar refrigerant, ko lalacewar jiki. Bincika zafi da sanyaya ƙasa da ƙayyadaddun ƙayyadaddun tsarin. Don TXVs, tabbatar da cewa fitilar mai ba da hankali har yanzu tana da ƙarfi kuma cewa keɓewar ba ta lalacewa. Don EEVs, bincika mahaɗin lantarki don shigar da danshi ko lalata, kuma bincika mai sarrafawa don lambobin kuskure da aka adana. Tsaftace duk wani ɓarnar da ke kewaye da jikin bawul idan yana da sauƙi.

Matsaloli na Al'ada

  • Hunting ko surging superheat Sau da yawa ana haifar da kwararan fitila mai sa ido da ba a sanya shi daidai ba, ƙananan cajin mai sanyaya, babban wutar lantarki mara kyau, ko saitin superheat mara kyau akan TXV mai daidaitawa.
  • FLT:0 Fuskar buɗewa ko rufe bawul An haifar da ɓarkewa, lalata ta ciki, ko lalacewa ta inji. Ga EEVs, lalacewar wayoyin motar mai matakai ko gazawar fitar da mai kula da iya haifar da bawul ɗin don daskarewa a wurin.
  • FLT:0 Rashin isasshen zafi (rashin ruwa) Yana nuna babban na'urar fadadawa, bawul mai buɗewa, ko fitilar mai ƙira wanda ya yi zafi sosai. Mai sanyaya mai ruwa da ke dawowa cikin kwampreso na iya wanke mai kuma haifar da lalacewar inji.
  • Babban zafi (jin yunwa) An haifar da ƙananan na'ura, ƙananan cajin refrigerant, ƙuntataccen rami, ko kwan fitila mai ƙonawa ko TXV da ba daidai ba.
  • Ayyukan tsarin da ba a daidaita ba sau da yawa ana danganta shi da wayoyi mara kyau akan EEV, algorithm na mai kula da lalacewa, ko shigarwar firikwensin na lokaci-lokaci.

Tsarin Ayyukan Ayyukan Bincike na Tsarin

Lokacin da kake gyara matsala, fara da tabbatar da matsin lamba da zafin jiki na mai sanyaya don kafa tushen aiki. Bincika bambancin zafin jiki a cikin na'urar fadadawa: fitowar ya kamata ta kasance mai sanyi fiye da shigarwa. Don TXVs, dumi fitilar mai ji da hannunka yayin da kake kallon matsa lamba na tsotsa. Idan bawul ɗin yana aiki daidai, matsa lamba ya kamata ya tashi yayin da bawul ɗin ya buɗe. Idan babu amsa, shugaban wutar zai iya rasa cajinsa kuma yana buƙatar maye gurbinsa.

Don EEVs, yi amfani da kayan aikin bincike don karanta matsayin bawul da tabbatar da umarnin mai kula. Idan bawul ɗin ya makale, bincika ƙura ta hanyar taɓawa cikin hankali a jikin bawul yayin da yake aiki. Idan taɓawa ya share batun, tsarin yana ƙunshe da gurɓataccen abu wanda dole ne a magance shi. Kada kuyi ƙoƙarin canza ramin ko ƙuƙwalwar TXVwannan abubuwan haɗin suna cikin masana'antu kuma ba za a iya daidaita su a filin a yawancin ƙirar ba. Idan bincike ya tabbatar da ƙarancin bawul, maye gurbin shine kawai mafita mai dogaro. Tallafa mai mahimmanci kamar Tip Tuesday posts a kan HVAC School na Tech Tech suna ba da ƙididdiga masu mahimmanci don gano matsalolin faɗaɗa na'urar.

Tsaro da Bin Dokokin

Kayan Kariya na Mutum (PPE)

Yin amfani da na'urorin fadada ya ƙunshi aiki tare da kayan sanyaya mai ƙarfi, fitilun ƙonewa, da kayan lantarki. Koyaushe saka tabarau na aminci da safofin hannu masu tsayayya da yankewa lokacin da kake sarrafa bututu da kayan aiki. Fitar da kayan sanyaya na iya haifar da daskarewa ko ƙonawar sinadarai; yi amfani da mai gano leak na lantarki kuma kada ka gwada saɓo tare da harshen wuta. Lokacin da kake yin brazing, saka safofin hannu masu dacewa da tsayayyar zafi da kariya ga idanu. Don tsarin tsayayyar ƙarfi kamar R-410A, ka kuma saka garkuwa a fuska lokacin da kake haɗa ko cire ma'auni.

Tsarin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin Rashin

Kada ku taɓa buɗe kewayawar mai sanyaya ba tare da tabbatar da cewa tsarin ya cika matsin lamba ba. Yi amfani da kayan aikin dawo da su don cire mai sanyaya kafin a cire kowane ɓangaren. Ko da bayan dawowa, ƙimar raguwa na iya kasancewa a cikin jikin bawul ko layin. Yi hankali da karya haɗin a ƙarƙashin rag don tabbatar da cewa babu matsin lamba. A kan manyan tsarin kasuwanci, bi hanyoyin kulle / ƙuntatawa don hana kunnawa ta hanyar haɗari na kwampreso ko bawul a lokacin sabis. Bin dokokin FDA Sashe na 608 na FDA (FLT: 1) shine buƙatar doka ga kowane mai fasaha wanda ke kula da kayan sanyaya; sarrafawa mara kyau na iya haifar da manyan fines da lalacewar muhalli.

Yin amfani da Kayan sanyaya

Yi amfani da refrigerants kawai waɗanda aka tsara tsarin da na'urar faɗaɗa don. Mixing refrigerants ko yin amfani da nau'ikan da ba daidai ba na iya haifar da halayen sinadarai, matsin lamba mai yawa, da lalacewar bala'i na na'urar faɗaɗa da sauran abubuwan haɗin. Yarda da refrigerants da aka dawo dasu bisa ga dokokin EPA da dokokin gida. Lokacin cajin tsarin, jinkirta samar da refrigerant a hankali don kauce wa slugging na'urar faɗaɗa. Don R-410A da sauran haɗuwa da matsin lamba mai yawa, tabbatar da cewa duk hoses, gauges, da kayan aikin dawo da su an ƙididdige su don ƙimar matsa lamba na takamaiman refrigerant.

Zaɓin Na'urar Ƙara Ƙari da Ta Dace

Tsarin da kuma iyawa

Zaɓin na'urar faɗaɗa mai kyau yana buƙatar daidaita ƙarfin ƙimar bawul ɗin zuwa nauyin ƙirar tsarin, nau'in mai sanyaya, da yanayin aiki. Wani bawul mai ƙarancin girman zai kashe mai ɓarna, yana haifar da ƙarancin matsin sha, babban zafi, da rashin sanyaya. Wani bawul mai girma zai haifar da rashin kwanciyar hankali, farauta, da yiwuwar slugging mai ruwa. Koyaushe duba takardar ƙayyadaddun masana'antun kayan aiki. Don maye gurbin na'urorin, yi amfani da ainihin lambar ɓangaren OEM ko kwatankwacin giciye wanda aka amince da shi musamman don tsarin. Kayan aikin zaɓi na ƙwararru, kamar [[Danfoss Coolselector 2]] ko [[Sporlan Valve:]]Sporlan Valve: 3, yana ba da ƙayyadaddun girman don TXVs da EEVs bisa ga ainihin yanayin aiki.

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TXVs yawanci suna da saitin zafi mai ƙarfi wanda ya kasance daga 5 ° F zuwa 12 ° F, dangane da aikace-aikacen. Wasu bawul suna daidaitawa ta hanyar juya ƙwanƙolin zafi mai zafi a ƙasan bawul. EEVs za a iya tsara su don manufofin zafi mai yawa, sau da yawa 6 ° F zuwa 10 ° F a ƙarƙashin ɗoraccen kaya. Saita zafi mai yawa yana da haɗarin ruwa mai ruwa, wanda zai iya lalata kwampreso. Saita zafi mai yawa yana rage ƙarfin tsarin da inganci saboda ba a yi amfani da mai ɓarna sosai ba. Saitin zafi mai kyau ya dogara da nau'in mai ɓarna ( faɗaɗa da ambaliya), mai sanyaya da aka yi amfani da shi, da ƙirar tsarin bushewa.

Muhalli da Kuma Amfani

Yanayin lalata ko shigarwa a waje suna buƙatar na'urorin faɗaɗa tare da rufin kariya mai dacewa. Rufin epoxy, nickel plating, ko jikin bawul na bakin karfe suna tsayayya da lalata a cikin yanayin bakin teku ko masana'antu. Don aikace-aikacen high vibration kamar na'urorin condenser a rufin, zaɓi na'urori tare da ƙarfin haɗi da fasalin shakatawa. EEVs a cikin waɗannan yanayin suna buƙatar amintaccen haɗin lantarki wanda ke tsayayya da danshi da sassautawa. Koyaushe bi ƙimar lantarki na tsarin don EEVs don hana wuce gona da iri da sanyaya da rashin aiki na wuri.

Na'urorin Ƙarfafawa na Ƙarfafawa

Lokacin da aka canza tsarin zuwa wani refrigerant dabankamar sake gyara daga R-22 zuwa R-407C ko R-448A, dole ne a maye gurbin ko gyara na'urar fadada don dacewa da halayen thermodynamic na sabon refrigerant. Masu sanyaya daban-daban suna da matsin saturation daban-daban, densities, da kuma kwararar halaye. Yin amfani da tsohon na'urar fadada tare da sabon refrigerant zai haifar da rashin daidaito na sarrafa zafi da rashin kyakkyawan tsarin aiki. TXVs da aka tsara don takamaiman refrigerants suna da nauyin wutar lantarki daban-daban da girman ramin. Zaɓin maye gurbin daidai yana buƙatar tuntuɓar zane-zane na mai sana'a. Don EEVs, dole ne a sabunta ma'aunin kwararar bawul da saitunan mai kula da sabon refrigerant.

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Na'urar fadadawa wani muhimmin bangare ne a cikin kowane tsarin HVAC. Gudanar da tsari mai kyau daga zaɓa ta hanyar shigarwa da kiyayewa na ci gaba yana tabbatar da cewa tsarin yana aiki a cikin ƙarancin inganci, yana kiyaye yanayin zafi mai daidaito, kuma yana guje wa gazawar kwampreso mai tsada. Ta hanyar sarrafa takamaiman buƙatu don TXVs, EEVs, bututun capillary, da ramuka masu gyarawa, masu fasaha suna haɓaka matakin sabis ɗin su kuma suna ba da ƙimar dindindin ga abokan cinikin su. Fadada ƙwarewar ƙwarewar ƙirar na'urar fadadawa da kasancewa sabuntawa akan shawarwarin masana'anta yana haɓaka ingancin shigarwa, rage kiran baya, da kare babban saka hannun jari da masu mallakar suka yi a cikin kayan aikin HVAC.