Samsung AQV12PWAX, AQV12PSBX manual Installing and connecting the assembly pipe of the indoor unit

Connecting the assembly cable

• End of the wire must be circular.

• After connecting the cables, make sure terminal numbers on the indoor/outdoor unit matches.

•Screws on terminal block must not be unscrewed with the torque less than 12kgf•cm.

10.Connect the grounding conductor to the grounding terminals.

11.Close the terminal board cover by tightening the screw carefully.

• In Russia and Europe, consult with the supply authority to determine the supply system impedance before

installation.

• Connect the wires firmly so that wires can not be pulled out easily. (If they are loose, it could cause burn-out of the wires.)

•Connect the wires according to color codes, referring to the wiring diagram.

•The power cable and the interconnection cable should be selected according to the specification in page 28.

Installing and connecting the assembly pipe of the indoor unit

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 pipe is already fitted to the air conditioner. You may need to extend the pipe using the assembly pipe (optional).

The connection procedure for the refrigerant pipe varies
according to the exit position of the pipe when facing the wall:	A	B
• Right(A)
• Left(B)		C
• Underside(C)
• Rear

1.Cut 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.

2.Smooth the cut edges.

3.Remove 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	Torque (kgf•cm)
ø6.35 mm	140~170
ø9.52 mm	250~280
ø12.70 mm	380~420
ø15.88 mm	440~480
ø19.05 mm	990~1210
ø22.23 mm	990~1210

• If you want to shorten or extend the pipes, refer to page 31~32.

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