Manual Ariston ALYS (page 41 of 152) (English, Dutch, French, Italian, Portuguese, Spanish)

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2.4 Tools

TOOLS

A pressure gauge assembly

B pipe cutter

C recharge pipe

D electronic scale for refrigerant recharge

E dynamometric spanner

F clamp-shaped pipe vice

G xx mm hex key

H refrigerant canister

I vacuum pump

L HFC refrigerant leak detector

DYNAMOMETRIC SPANNER

2.5 Thickness of the copper pipes

NOMINAL DIAMETER

(inches)

EXTERNAL DIAMETER

(mm)

THICKNESS

(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

Split type air conditioning units operating with R410A refrigerant use a

three-way external unit valve with a pin valve.

2.6 How to connect the pipes

1. Only remove the pipe caps immediately prior to connection: under no

circumstances must you let dampness or dirt enter.

2. If a pipe is bent too many times, it becomes hard: do not bend it more

than 3 times in the same section. Unwind the pipe by unrolling it without

pulling.

3. The insulation around the copper pipes must be at least 6 mm thick.

2.7 Connections to the internal unit

1. Shape the connection pipes well following the outline.

2. Remove the end cap from the pipes of the internal unit (check that no

impurities have been left inside).

3. Insert the pipe union and position the ﬂ ange at the end of the connection

pipe, following the instructions in the table (for copper piping):

NOMINAL

EXTERNAL

THICKNESS

MEASUREMENT

“A” mm

PIPE VICE

TRADITIONAL PIPE VICE

CLAMP-

SHAPED

BUTTERFLY

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

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Ariston ALYS Manual

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