LG UU70W - Synchro Operation Guidelines; Refrigerant Additional Charging Method

8
INSTALLATION OF OUTDOOR UNIT
ENGLISH
• Synchro Operation
Install the branch pipe so that pipe length and difference between high and low will not exceed
below Spec.
• Refrigerant Additional Charging Method
For additional charging method, see below table.
- 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 con-
necting.
- Connect remaining those by cutting or direct insertion to the diameter of pipe.
[Unit : m]
Branch
L1
H1
A
A
L2
L3
L4
L5
H2
Remote
Controller
Pipe Length & Height Spec(MAX.)
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
80
40
40
10
30
1
70
10
Indoor Unit Refrigerant Additional charging (g)
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 b (mm) B(g/m)
UU70W 25 70
Pipe Diameter.
(mm)
C (g/m)
Ø 6.35 35
Ø 9.52 40
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 re-
liability.
• Improper refrigerant charge may result in abnormal cycle.
!
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