Samsung AQ07XAXSER manual Installing and Connecting the Indoor Unit Assembly Piping, Torque kgf cm

INSTALLING THE UNIT

Installing and Connecting the Indoor Unit Assembly Piping

BA

There are two refrigerant pipes of different diameters:

A smaller one for the liquid refrigerant

A larger one for the gas refrigerant

A short length of piping is already fitted to the air conditioner. You must extend this piping using assembly piping (optionally supplied).

The connection procedure for the refrigerant piping varies according to the exit position of the piping from the indoor unit, as seen when facing the air conditioner in position on the wall:

ˇRight (A)

ˇLeft (B)

ˇRear

1With a knife, cut out the appropriate knock-out piece on the rear of the indoor unit (unless you are connecting directly from the rear).

2Smooth the cut edges.

3Remove the protection caps on the pipes and connect the assembly piping to each pipe, tightening the 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

If the piping must be shortened or extended, refer to page 11.

4Cut off any excess foam insulation.

5If necessary, bend the pipe round, along the bottom of the indoor unit and

out through the appropriate hole, taking care to ensure that: The piping does not jut out from the rear of the indoor unit The bending radius is 100 mm or more

6Pass the piping through the hole in the wall.

7For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 12.

The piping will be insulated and fixed permanently into position once the whole installation has been tested for gas leaks; refer to page 13 for further details.

E-10