Me pēhea te mahi tahi a te pouaka whakamatao, te pourewa whakamatao me te waeine whakahaere hau hei whakarato hauhautanga (HVAC) ki tētahi whare. I roto i tēnei tuhinga ka hipokina e mātou tēnei kaupapa kia mārama ai ki ngā kaupapa matua o te tipu pokapū HVAC.
Te mahi tahi a te pourewa whakamatao me te AHU
Ko ngā wāhanga matua o te pūnaha whakamatao matua ko:
- Pūwhakamatao
- Wāhanga Whakahaere Hau (AHU)
- Pou Whakamatao
- Ngā papu
Ko te nuinga o te wā ka whakanohoia te pouaka whakamatao ki te rūma o raro, ki te tuanui rānei, ā, kei te momo pouaka whakamatao e whakamahia ana tēnei. Ko ngā pouaka whakamatao o runga o te tuanui he mea "whakamatao hau" te nuinga, ko ngā pouaka whakamatao o raro o te whare he mea "whakamatao wai" engari he rite tonu te mahi a ēnei e rua, arā, ko te whakaputa wai matao mō te hauhautanga mā te tango i te wera kāore e hiahiatia mai i te whare. Ko te rerekētanga anake ko te āhua o te maka atu a te pouaka whakamatao i te wera kāore e hiahiatia.
Ka whakamahia e ngā pouaka whakamatao hau ngā pā hau hei pupuhi i te hau matao o te taiao ki runga i tā rātou pūwhakamātao hei tango i te wera mai i te pūnaha, kāore tēnei momo e whakamahi i te pourewa whakamatao. Ka taea e koe te ako mō tēnei pūnaha me te mātaki i te akoranga ataata mā te pāwhiri i konei. Mō te toenga o tēnei tuhinga ka arotahi mātou ki ngā pouaka whakamatao wai me ngā pourewa whakamatao.
E rua ngā rango nunui o te pouaka whakamatao wai, ko tētahi e kiia ana ko te kaiwhakaoho, ko tētahi ko te whakapūmau.
Wai matao:
Ko te pūwero o te pouaka whakamatao te wāhi e puta ai te "wai whakamatao". Ka puta te "wai whakamatao" i te pūwero i te pāmahana tata ki te 6°C (42.8°F) ka panaia huri noa i te whare e te papu wai whakamatao. Ka rere te wai whakamatao ki runga i te teitei o te whare ki ia papa i roto i ngā paipa e mōhiotia ana ko ngā "whakaara". E mōhiotia ana ēnei paipa ko ngā whakaara ahakoa kei te rere te wai ki runga, ki raro rānei i roto i a rātou.
Ka wehea te wai matao mai i ngā ara whakarunga hei paipa iti ake te whānui e anga atu ana ki ngā waeine koiri pā (FCU) me ngā Waeine Whakahaere Hau (AHU) hei whakarato hauhautanga. Ko ngā AHU me ngā FCU he pouaka kei roto ngā pā e mimiti ana i te hau mai i te whare ka pana atu i ngā koiri whakamahana, whakamatao rānei hei whakarerekē i te pāmahana o te hau, kātahi ka pana atu i tēnei hau ki roto i te whare. Ka tomo te wai matao ki te AHU/FCU ka haere mā te koiri whakamatao (he raupapa paipa angiangi) ka mimiti i te wera o te hau e pupuhi ana. Ka wera te wai matao, ā, ka whakamatao te hau e pupuhi ana i a ia. Ina wehe te wai matao i te koiri whakamatao, ka mahana ake i te 12°C (53.6°F). Ka hoki te wai matao mahana ki te evaporator, mā te ara whakarunga whakahoki, ā, ina tomo ki te evaporator ka mimiti te hau whakamatao i te wera kāore e hiahiatia, ka nekehia atu ki te condenser. Ka hoki anō te wai matao ki te whakamatao, kua rite ki te huri haere i te whare me te kohikohi i te wera kāore e hiahiatia. Kia mōhio: ka kiia te wai matao he "wai matao" ahakoa he mahana, he matao rānei.
Wai whakapūmau:
Ko te pūwhakamātao o te pouaka whakamatao te wāhi e kohia ai te wera kāore e hiahiatia i mua i te tukuna ki ngā pourewa whakamatao. Ka haere te hau whakamatao i waenganui i te kaiwhakaoho me te pūwhakamātao hei neke i te wera kāore e hiahiatia. Ka haere tētahi atu porowhita wai, e mōhiotia ana ko te "wai whakamātao", i roto i te porowhita i waenganui i te pūwhakamātao me te pourewa whakamatao. Ka kohia e te hau whakamatao te wera mai i te porowhita "wai whakamatao" i roto i te pūwhakamātao, ā, ka nekehia tēnei ki te porowhita "wai whakamātao" i roto i te pūwhakamātao.
Ka tomo te wai whakapūmau ki te whakapūmau i te pāmahana tata ki te 27°C (80.6°F) ka haere mā roto, ka kohia te wera i te ara. I te wā e wehe atu ai i te whakapūmau, kua tata ki te 32°C (89.6°F). Kāore te wai whakapūmau me te hauhautanga e whakaranu, ka wehea tonutia rāua e te pakitara paipa, ka whakawhiti noa te wera mā roto i te pakitara. Kia haere te wai whakapūmau mā roto i te whakapūmau, ka kohia te wera kāore e hiahiatia, ka anga atu ki ngā pourewa whakamatao ki te tuku i tēnei wera ka whakahokia te pouaka whakamatao kia rite ki te kohi i te wera atu.
Pou whakamatao:
Kei runga i te tuanui te pourewa whakamatao, ā, koinei te wāhi whakamutunga mō te wera kāore e hiahiatia i roto i te whare. Kei roto i te pourewa whakamatao he hau nui e pupuhi ana i te hau mā roto i te waeine. Ka papuhia te wai whakapūmau ki ngā pourewa whakamatao, ā, ka rehuhia ki roto i te rerenga hau. Ka tomo te hau matao o te taiao, ka pā tika ki te rehu o te wai whakapūmau (i roto i te pourewa whakamatao tuwhera). Mā tēnei ka taea te whakawhiti i te wera o te wai whakapūmau ki te hau, ā, ka pupuhihia tēnei hau ki te āhuarangi. Kātahi ka kohia te wai whakapūmau ka hoki ki te pouaka whakamatao, kia rite ai ki te kohi i te wera. Tirohia tā mātou akoranga motuhake mō ngā pourewa whakamatao i konei.
Wā tuku: Hakihea-09-2019
