LG PMUB11A User manual

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