LG UU49W, Installation Manual

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Installation of Outdoor Unit
• 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 remaining those by cutting or direct insertion to the diameter of pipe.
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Synchro Operation
Install the branch pipe so that pipe length and difference between high and low will not exceed
below Spec.
[Unit : m]
Branch
L1
H1
A
A
L2
L3
L4
L5
H2
Remote
Controller
Pipe Length & Height
Total(L1+L2+L3+L4+L5)
Main Pipe(L1)
Branch Pipe (L2+L3+L4+L5)
Each
Indoor-Outdoor (H1)
Indoor-Indoor (H2)
(L1+L2),(L1+L3),(L1+L4),(L1+L5)
A
Spec(MAX.)
80
45
40
15
30
1
70
10
Installation Manual 7
ENGLISH
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Refrigerant Additional Charging Method
For additional charging method, see below table.
Indoor Unit Refrigerant Additional charging (g)
Duo
Trio
Quartet
Refrigerant = (L1-b)xB+(L2+L3)xC
Refrigerant = (L1-b)xB+(L2+L3+L4)xC
Refrigerant = (L1-b)xB+(L2+L3+L4+L5)xC
C
(g/m)
Pipe Size
mm(inch)
Ø 6.35(1/4)
Ø 9.52(3/8)
35
40
b
(m)
Model
UU42W/UU43W
UU48W/UU49W
UU60W/UU61W
B
(g/m)
7.5 40
b : Rated performance for refrigerant line length.
C : Additional charging Refrigerant of Branch Liquid Pipe.
B : Additional charging Refrigerant of Main Liquid Pipe.
NOTICE
CAUTION
• Capacity is based on standard length and maximum allowance length is on the basis of
reliability.
• Improper refrigerant charge may result in abnormal cycle.
!