Kodi Defrost Heater ndi chiyani?

Chotenthetsera cha defrost ndi gawo lomwe lili mkati mwa gawo lafiriji la firiji. Ntchito yake yayikulu ndikusungunula chisanu chomwe chimawunjikana pamakoyilo a evaporator, kuwonetsetsa kuti zoziziritsa zikuyenda bwino. Chipale chofewa chikachuluka pamakoyilowa, chimapangitsa kuti firiji isazizire bwino, zomwe zimapangitsa kuti pakhale mphamvu zambiri komanso kuwonongeka kwa chakudya.

Defrost heater nthawi zambiri imayatsa nthawi ndi nthawi kuti igwire ntchito yake, zomwe zimapangitsa kuti firiji ikhalebe ndi kutentha koyenera. Mukamvetsetsa ntchito ya chotenthetsera cha defrost, mudzakhala okonzeka kuthana ndi vuto lililonse lomwe lingabwere, motero mudzatalikitsa moyo wa chipangizo chanu.

Kodi Defrost Heater Imagwira Ntchito Motani?
Kagwiritsidwe ntchito ka chotenthetsera cha defrost ndi chochititsa chidwi kwambiri. Nthawi zambiri, imayang'aniridwa ndi nthawi yoziziritsa mufiriji ndi thermistor. Nayi kuyang'ana mozama panjirayi:

The Defrost Cycle
Kuzungulira kwa defrost kumayambika pakanthawi kochepa, nthawi zambiri maola 6 mpaka 12, kutengera mtundu wa firiji komanso momwe chilengedwe chimazungulira. Njirayi imagwira ntchito motere:

Defrost Timer Activation: Chowotcha choziziritsa chimawonetsa kuti chotenthetsera cha defrost chiyatse.
Heat Generation: Chotenthetsera chimatulutsa kutentha, komwe kumalunjikitsidwa kumakoyilo a evaporator.
Kusungunuka kwa Frost: Kutentha kumasungunula chisanu chomwe chawunjika, kuchisandutsa madzi, chomwe chimatha.
Kukhazikitsanso Kachitidwe: Chichisanu chikasungunuka, chowotcha choziziritsa chimazimitsa chotenthetsera, ndipo kuzizira kumayambiranso.
Mitundu ya Defrost Heater
Pali mitundu iwiri ikuluikulu ya zotenthetsera zomwe zimagwiritsidwa ntchito mufiriji:

Electric Defrost Heaters: Ma heaters awa amagwiritsa ntchito kukana kwamagetsi kuti apange kutentha. Ndiwo mtundu wofala kwambiri ndipo amapezeka m'mafiriji amakono. Zotenthetsera zamagetsi zimatha kukhala zamtundu wa riboni kapena mawaya, opangidwa kuti azipatsa kutentha kofanana pamakoyilo a evaporator.
Ma Heater Otenthetsera Gasi: Njira iyi imagwiritsa ntchito mpweya woponderezedwa wa refrigerant kuchokera ku kompresa kuti apange kutentha. Mpweya wotentha umayendetsedwa kudzera muzitsulo, kusungunula chisanu pamene chikudutsa, zomwe zimapangitsa kuti chisanu chizizizira mofulumira. Ngakhale kuti njirayi ndi yothandiza, simapezeka m'mafiriji apanyumba kusiyana ndi ma heaters amagetsi.