LG UU36WR Installation Manual page 18

INSTALLATION OF OUTDOOR UNIT
18
• Synchro Operation
Install the branch pipe so that pipe length and difference between high and low will not exceed
below Spec.
L2
L3
L4
L5
H1
Remote
Controller
L1
- 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.
• Refrigerant Additional Charging Method
For additional charging method, see below table.
Indoor Unit
Duo Refrigerant = (L1-b) x B + (L2 + L3) x C
Trio Refrigerant = (L1-b) x B + (L2 + L3 + L4) x C
Quartet Refrigerant = (L1-b) x B + (L2 + L3 + L4 + L5) x C
Model
UU36WR / UU37WR
UU42WR / UU43WR
UU48WR / UU49WR
UU60WR / UU61WR
NOTE
b : Rated performance for refrigerant line length.
C : Additional charging Refrigerant of Branch Liquid Pipe.
B : Additional charging Refrigerant of Main Liquid Pipe.
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.
Branch
A
H2
A
Refrigerant Additional charging (g)
b(m)
7.5
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
Pipe Diameter.
(mm)
Ø 6.35
Ø 9.52
B(g/m)
40
[Unit : m]
Spec(MAX.)
80
45
40
15
30
1
70
10
C (g/m)
35
40