LG PMUB11A User manual

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5

Table of contents

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Installation Manual 1

INSTALLATION MANUAL

Branch Kit

To prevent injury to the user or other people and property damage, the following instructions

must be followed.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

• Consult with the sale agency or the professional installation shop for installation.

• Carefully read Install Manual before installation.

• When refrigerant gas leaks before installation, perform air circulation before work.

• If refrigerant gas touches with fire devices, harmful gas may occur.

• Install product by using dedicated tools and pipe material manufactured for R410A (refrigerant).

• Check refrigerant leaks after work is completed.

• Be careful so that thermal insulation materials and neighboring inflammable substance should

not be ignited when welding.

• Take care so that children should not touch with a vinyl bag and a sharp accessory.

• Wrap thermal insulation materials so that dew will not form on a pipe of refrigerant.

• Refer to Combination Table for the indoor connection capacity.

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

WARNING

CAUTION

2Branch Kit

1. Type of branch pipe

Separately use a branch pipe depending on indoor capacity for installation.

Unbalance type of branch pipe must be connected depending on large capacity or small

capacity.

2. Accessory for Installation

3. SPEC for branch pipe connection part

• Procure other parts than those specified in this manual in the scene

• No. parts are used for connection of 48/60k indoor unit.

Indoor Classification

2 UNIT

3 UNIT

4 UNIT

Model Name

PMUB11A

PMUB23A

PMUB122A

PMUB112A

PMUB111A

PMUB1111A

Capacity Ratio(%)

50:50 (1:1)

40:60 (2:3)

20:40:40 (1:2:2)

25:25:50 (1:1:2)

33:33:33 (1:1:1)

25:25:25:25(1:1:1:1)

Remark

Unbalance type

Unbalance type

Unbalance type

Manual Gas pipe Liquid pipe Insulation(Gas pipe) Insulation(Liquid pipe)

Insulation Band Socket

(I.D)

Ø19.05(3/4) Ø25.4(1)

Ø9.52(3/8) Ø12.7(1/2)

Ø12.7(1/2) Ø15.88(5/8)

Ø6.35(1/4) Ø9.52(3/8)

Ø9.52(3/8) Ø12.7(1/2)

ab

B

A

D

C

(Ø15.88→Ø19.05)

(Gas pipe)

(Liquid pipe)

( ):inch

Installation Manual 3

ENGLISH

4 . Pipe length and difference between high and low

Install the branch pipe so that pipe length and difference between high and low will not exceed

below SPEC.

•When installing the branch pipe, direction and angle of installation is not limited.

•Take care so that burrs and foreign material may not enter into the cutting surface

when connecting.

•Connect a gas pipe of Ø19.05 by using the socket in the indoor unit and connect

remaining those by cutting or direct insertion to the diameter of pipe.

•Don’t use the liquid pipe by too bending or twisting.

5 .Thermal insulation work

•Securely wrap the refrigerant and the branch pipe by using thermal insulation

materials provided.

When using thermal insulation materials released, use withstand heat insulation

materials

(thickness of more than 15mm).

•Securely adhere thermal insulation materials wrapping the branch pipe so that

they do not widen.

After wrapping them with auxiliary materials , bound them with a band .

•Finish the work by wrapping with a vinyl tape after the insulation material work.

Pipe Length(m)

Total(Main+Branch)

Main Pipe(L1)

Branch Pipe----Total

Each

In out (h1)

In-In (h2)

L1+L2/L3/L4/L5

Indoor-Indoor_(b)

Spec.

110

50

60

15

30

1

65

10

Branch

Main (L1)

h1

b

L2

L3

L4

L5

h2

Vinyl Tape

Insulation 4

Band 7

Insulation 6

Insulation 5

Insulation 6

Band 7

Band 7

Vinyl Tape

Vinyl Tape

P/No.: 3828A21005B