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Ariston Nevis Manual

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2.4 Herramientas
HERRAMIENTAS
A
grupo manómetros
B cortatubos
C tubo de carga
D
balanza electrónica para carga de refrigerante
E llave dinamométrica
F
avellanador de pinza
G llave hexagonal de xx mm
G cilindro refrigerante
H bomba para vacío
L detector de fugas para refrigerantes HFC
LLAVE DINAMOMÉTRICA
2.5 Espesor de los tubos de cobre
DIÁMETRO NOMINAL
(pulgadas)
DIÁMETRO EXTERNO
(mm)
ESPESOR
(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
En los climatizadores de tipo split que funcionan con refrigerante R410A se
utiliza una válvula de tres vías de la unidad externa con válvula de aguja.
2.6 Cómo conectar los tubos
1. Elimine el cierre de los tubos tan sólo algunos instantes antes de proce-
der a efectuar la conexión. Es absolutamente imprescindible evitar que
entren humedad o suciedad.
2. Si un tubo se pliega varias veces, se vuelve demasiado duro. No pliegue
el mismo tramo de tubo más de 3 veces. Desenrolle el tubo sin tirar.
3. El material aislante de los tubos de cobre debe tener, al menos, 6 mm. de
espesor.
2.7 Conexiones a la unidad interna
1. Moldee los tubos de conexión siguiendo el trazado.
2. Quite el dispositivo de cierre de los tubos de la unidad interna, controlan-
do que no queden impurezas en el interior.
3. Introduzca el empalme y monte la brida circular en el extremo del tubo de
conexión, siguiendo las indicaciones de la tabla (para tubos de cobre):
ø
NOMINAL
ø
EXTERNO
mm
ESPESOR
COTA “A” mm
AVELLANADOR
AVELLANADOR
CONVENCIONAL
DE PINZA
DE MARI
POSA
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
… 91 …


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