Samsung MXJ-3D2509K Installation guide

Brand: Samsung

Model: MXJ-3D2509K

Type: Installation guide

This manual is also suitable for

Installation manual

Please read ‘Safety Precautions’ described in the installation manual of the

air conditioner.

• Check and make sure that all parts are included in the package.

• For piping material and size of the refrigerant pipes, refer to the

installation manual of the air conditioner.

DB98-34641A(3)

Branch joints

Parts

Model name

Type

MXJ-2D2509K MXJ-3D2509K MXJ-4D2509K

Liquid side

Gas side

x 3 pieces

x 4 pieces

x 1 piece

x 2 pieces

x 1 piece

x 3 pieces

x 1 piece

x 4 pieces

x 3 pieces

1 2 3 4

Socket

◆ Condensation may occur on the surface of the insulator depending on the

atmosphere in internal part of the ceiling.

◆ If the internal part of the ceiling has high temperature or humidity rate is more

than 80%, please add proper insulation to prevent water drops.

◆ Weldment must be applied to the stopper part of the pipes and sockets.

EX)

Note

Liquid side branch joint

Connecting method

- Connect the pipe to the connecting part of the branch joint or use

provided socket by cutting them according to the diameter of the

connecting pipe.

- When you cut the socket, make sure that the pipe connection part

is over 10 ~15mm.

- After cutting the socket, remove the burr on cut part of the socket.

It is impossible to connect a socket to a pipe when burr removing

process was poor or pipe is deformed.

10 ~15mm

or more

※ Basic specification

500mm or more

Main pipe

Connected to outdoor unit

Connected pipe

Before branching

After branching

Connected pipe

Socket

Connected to indoor unit

Socket

Liquid side branch

※ Connect 3 MXJ-2D2509K

branch joints

 Keep minimum distance of 500mm or more before

connecting a branch joint.

CAUTION

 Do not insert the pipe deeply into the joint.

(Do not insert more than 70mm.)

CAUTION

Connecting pipe

MXJ-＊D2509K_IM_E_34641A(3).indd 1 2013-06-04 오후 5:38:36

Gas side branch joint

1. Select a socket that fits the diameter of the pipe.

Socket

Retail purchases

Indoor unit side

Outdoor unit side

2. If the number of indoor unit is less than the number of the connection port, block the unused ports.

Blocking the unused

connection port

In order

Supplied

※ Use the socket by cutting it according to the connection ports.

10~15mm or more

3. Install the gas side branch joint horizontally.

±15° or

less

Horizontal line

±10° or

less

Horizontal line

Insulation method

◆ After insulation is done, fix the header branch with a hanger.

Adhesive insulation tape

Insulating a pipe

Insulate the

header branch

Insulate after brazing the cap

Adhesive insulation tape

Insulator

Insulating gas side branch joint

◆ Fix the header branch with a cable tie and cover the top and bottom part of the connection part.

◆ Insulate the header branch and the brazed part and cover the connection part with a adhesive insulation tape.

Insulating liquid side branch joint

◆

Make sure to attach the part where provided insulator and the purchased insulator meets so that there is no space between them. Apply extra insulator(retail purchase), with at

least 10mm in thickness, to the part where two insulators are attached.

◆ Use an insulator with heat resisting temperature over 120℃. Insulate the branch joints with the minimum thickness of 10mm and insulation can be done as shown in

the figure on the bottom right side.

◆ When the installation was done in high humidity (Higher than 30℃, 80%) place, wrap the supplied insulator with extra insulator made of polyethylene foam or other

similar material with at least 10mm of thickness.

Fix securely without any gap

Provided insulator

Fix securely without

any gap

Pipe insulator

(Retail purchase)

Pipe insulator

(Retail purchase)

Thickness of the insulator(retail

purchase) must be over 10mm

Insulation tape