Samsung AR24MSFTBWKNTV, AR30MSFTBWKNTV, AR12MSFTBWKNTV instruction

Installation

Step 2.5 Optional: Changing the direction of the drain hose

Drain pan outlet

Rubber cap

Pour water in the direction of arrow.

Direction of the drained water

CAUTION

•Make sure that the indoor unit is in upright position when you pour water to check for leakage. Make sure that the water does not overflow onto the electrical part.

Step 2.6 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe)

Connect indoor and outdoor units with field-supplied copper pipes by means of flare connections. Use insulated seamless refrigeration grade pipe only, (Cu DHP type according to ISO1337), degreased and deoxidized, suitable for operating pressures of at least 4200 kPa and for burst pressure of at least 20700 kPa. Under no circumstances

must sanitary type copper pipe be used.

There are 2 refrigerant pipes of different diameters:

•The smaller one is for the liquid refrigerant

•The larger one is for the gas refrigerant

A short liquid refrigerant pipe and a short gas refrigerant pipe are already fitted to the air conditioner. The connection procedure for the refrigerant pipes varies according to the exit position of each pipe when facing the wall:

Left(A)

Right(B)

Underside(C)

1Cut out the appropriate knock-out piece (A, B, C) on the rear of the indoor unit unless you connect the pipe directly from the rear.

2Smooth the cut edges.

3Remove the protection caps of the pipes and connect the assembly pipe to each pipe. Tighten the nuts first with your hands, and then with a torque wrench, applying the following torque:

Outer diameter (mm)	Torque (N•m)	Torque (kgf•cm)

ø 6.35	14 to 18	140 to 180

ø 9.52	34 to 42	350 to 430

ø 12.70	49 to 61	500 to 620

ø 15.88	68 to 82	690 to 830

NOTE

•If you want to shorten or extend the pipes, see Step 2.7 Shortening or extending the refrigerant pipes (assembly pipe) on page 41.

4Cut off the remaining foam insulation.

5If necessary, bend the pipe to fit along the bottom of the indoor unit. Then pull it out through the appropriate hole.

•The pipe should not project from the rear of the indoor unit.

•The bending radius should be 100 mm or more.

6Pass the pipe through the hole in the wall.

40English