Pregatirea consta in spalarea radiatoarelor, operatiune ce va va ajuta sa aveti o iarna calduroasa. Spalarea caloriferelor este indicata si celor ce isi instaleaza centrale termice de apartament si, din lipsa banilor, doresc sa pastreze vechile calorifere. Veti constata ca de-a lungul timpului in interiorul radiatoarelor (mai ales la cele din fonta) particulele de rugina din conducte sau calcarul din apa care circula prin interiorul lor au format un strat destul de gros pe peretii elementilor si in partea de jos, prin interiorul acestora, prin depunere.
Curatarea si spalarea caloriferelor se face in felul urmator:
1. Se demonteaza caloriferele de la cele doua legaturi pe care le au, sus si jos cu tevile de intrare si iesire a apei.
2. Se scot in exteriorul imobilului si se golesc de eventuala apa ce a mai ramas in ele.
3. Se toarna apa in calorifer, tinandu-l culcat cu cele doua orificii in sus si se clatina bine pentru a antrena particulele depuse in interior.
4. Se rastoarna apa si se repeta operatia de 2-3 ori.
5. Se umple cu o solutie de soda caustica cu apa (2 kg la 5 l apa) si se lasa 10-15 minute. Se rastoarna solutia si se clateste bine cu apa. Fiti atenti! Soda caustica e toxica si ataca mainile, de aceea, folositi manusi de cauciuc.
6. Se duc caloriferele inapoi in imobil si se monteaza la loc. Cu acest prilej se verifica si starea robinetilor de trecere (aceia din care inchidem apa la intrarea in calorifer si care au un maner negru), care pot fi schimbati sau carora li se pot inlocui garniturile.
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