Manual Ariston ALYS (page 18 of 152) (English, Dutch, French, Italian, Portuguese, Spanish)

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2.4 Strumenti

STRUMENTI

A gruppo manometri

B tagliatubi

C tubo di carica

D bilancia elettronica per carica refrigerante

E chiave dinamometrica

F cartellatrice a pinza

G chiave esagonale da xx mm

H bombola refrigerante

I pompa per il vuoto

L cercafughe per refrigeranti HFC

CHIAVE DINAMOMETRICA

2.5 Spessore dei tubi in rame

DIAMETRO NOMINALE

(pollici)

DIAMETRO ESTERNO

(mm)

SPESSORE

(mm)

1/4 6,35 0,8

3/8 9,52 0,8

1/2 12,70 0,8

5/8 15,88 1,0

Nei climatizzatori di tipo split funzionanti con refrigerante R410A si utilizza

una valvola a tre vie dell’unità esterna con valvola a spillo.

2.6 Come collegare i tubi

1. Rimuovere la chiusura dei tubi solo appena prima di effettuare il colle-

gamento: si deve assolutamente evitare che entri umidità o sporcizia.

2. Se un tubo viene curvato troppe volte, diventa duro: non curvarlo più di 3

volte nello stesso tratto. Svolgere il tubo srotolandolo senza tirare.

3. L’isolante dei tubi in rame deve avere almeno 6 mm di spessore.

2.7 Connessioni all’unità interna

1. Sagomare i tubi di collegamento secondo il tracciato.

2. Togliere la calottina di chiusura dei tubi dell’unità interna (veriﬁ care che

all’interno non siano rimaste impurità).

3. Inserire il bocchettone e praticare la ﬂ angia all’estremità del tubo di col-

legamento, seguendo le indicazioni della tabella (per tubazioni in rame):

NOMINALE

ESTERNO

SPESSORE

QUOTA “A” mm

CARTELLATRICE

CONVENZIONALE

A PINZA A FARFALLA

1/4 6,35 0,8 0-0,5 1,0-1,5 1,5-2,0

3/8 9,52 0,8 0-0,5 1,0-1,5 1,5-2,0

1/2 12,70 0,8 0-0,5 1,0-1,5 2,0- 2,5

5/8 15,88 0,8 0-0,5 1,0-1,5 2,0-2,5

4. Collegare i tubi usando due chiavi, facendo attenzione a non danneggiare

i tubi. Se la forza di serraggio è insufﬁ ciente, vi saranno probabilmente

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Ariston ALYS Manual

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