Taglio e cartellatura delle tubazioni

4.Infilare nella tubazione il dado della cartella, fissare la tubazione nel morsetto fissatubi della cartellatrice ed eseguire la cartella.

90°±2°

 

4

 

 

5°±

B

 

 

 

R0.4~0.8

Tubo Cartella

Diametro Esterno della

Sporgenza (A)

Diametro Esterno

Tubazione (D)

 

della Cartella (B)

ø6.35 mm

1.3 mm

8.7

- 9.1 mm

ø9.52 mm

1.8 mm

12.8

- 13.2 mm

ø12.70 mm

2.0 mm

16.2

- 16.6 mm

ø15.88 mm

2.2 mm

19.3

- 19.7 mm

5.Controllare la correttezza della cartellatura. Qui di seguito sono riportati alcuni errori tipici in fatto di esecuzione delle cartellature.

Esecuzione

Inclinazione del

Danneggiamento Fessurazione

Disuniformità

corretta

bordo della superficie

della superficie

dello spessore

6.Allineare le tubazioni per facilitarne il collegamento e poi stringere i dadi delle cartelle dapprima a mano e poi con una chiave dinamometrica tarata per:

Dado della cartella

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Attacco dell’unità interna

Tubazione da collegare

Diametro esterno

Coppia di serraggio

N•m

kgf•cm

 

ø6.35 mm

14~18

140~180

ø9.52 mm

34~42

350~430

ø12.70 mm

49~61

500~620

ø15.88 mm

68~82

690~830

 

 

 

• Il serraggio eccessivo dei giunti a cartella comporta il rischio di fughe di refrigerante. Eventuali saldature delle

 

 

 

 

 

 

NOTA

tubazioni devono essere eseguite facendo circolare azoto all'interno delle tubazioni stesse. Il giunto eseguito

 

 

 

deve essere facilmente raggiungibile e manutenzionabile.

7.Vedere quanto precisato alle pagg. da 41 a 43 per ciò che riguarda il collegamento all’unità esterna e la messa in vuoto delle linee frigorifere.

• I dadi delle cartelle vanno serrati con le coppie indicate.

ATTENZIONE

Serrandoli con coppie eccessive si potrebbero provocare fessurazioni dei bicchierini della cartella che inficerebbero

la tenuta dei giunti.

 

Italiano-38

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Samsung AR07JSFPEWQNEU, AR12JSFPEWQNET, AR09JSFPEWQNET manual Italiano-38, La tenuta dei giunti

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