Installation manual

E-11

ENGLISH

7.5 metres of piping is supplied with the air conditioner(Optional).

This length can if necessary be:

◆ Extended to a maximum of 15 metres

◆ Shortened as required

☛ If more than 7.5 metres of piping is required:

◆ The assembly cable must also be extended

◆ Refrigerant must be added to the circuit by an approved

installer; otherwise, the indoor unit may freeze

1 Make sure that you have the required tools available (pipe cutter, reamer,

flaring tool and pipe holder).

2 If you wish to shorten the piping, cut it using a pipe cutter, taking care to

ensure that the cut edge remains at a 90° angle with the side of the pipe,

and referring to the illustrations below for examples of edges cut correctly

and incorrectly.

Oblique Rough Burr

3 To prevent any gas from leaking out, remove all burrs at the cut end of the

pipe, using a reamer.

4 Slide a flare nut on to the pipe and modify the flare.

Outer Diameter (D) Depth (A)

6.35 mm 1.3 mm

9.52 mm 1.8 mm

5 Check that the flaring is correct, referring to the illustrations below for

examples of incorrect flaring.

Inclined Damaged Surface Cracked Uneven Thickness

6 Align the pipes to be connected and tighten the flare nuts first manually and

then with a torque wrench, applying the following torque.

Outer Diameter Torque (kgf•cm)

6.35 mm 140~170

9.52 mm 250~280

7 For further details on how to connect up to the outdoor unit and purge the

circuit, refer to page 12.

Cutting/Extending the Piping

Ox x

xx x x

INSTALLING THE UNIT