LG ATUQ24GPLE7 Installation Manual page 8

INSTALLATION OF OUTDOOR UNIT
8
Piping length and the elevation
Capacity
MODEL
(kBtu/h)
ATUQ18GPLE7
ATUQ24GPLE7
APUQ24GS1A4
APUQ30GR5A4
ATUQ30LNLE7
AUUQ36GH4
AUUQ36LH4
AUUQ48GH4
AUUQ48LH4
!
CAUTION
If installed tube is shorter than 7.5 m (24.6 ft), additional charging is not necessary.
Additional Refrigerant = (A - 7.5 m) x Additional refrigerant (g)
Indoor unit
B
!
CAUTION
• Capacity is based on 7.5 m and maximum allowance length is on the basis of reliability.
• Improper refrigerant charge can cause abnormal pressure and n oise problem.
Pipe Size
mm(inch)
Gas
18 Ø 12.7(1/2) Ø 6.35(1/4)
24 Ø 15.88(5/8) Ø 9.52(3/8)
28 Ø 15.88(5/8) Ø 9.52(3/8)
32 Ø 15.88(5/8) Ø 9.52(3/8)
36 Ø 15.88(5/8) Ø 9.52(3/8)
46 Ø 15.88(5/8) Ø 9.52(3/8)
(A - 24.6 ft) x Additional refrigerant (klb)
A
Outdoor unit
Length A
m(ft)
Liquid Standard Max.
30(98.4) 15(49.2)
7.5(24.6)
50(164)
A
Indoor unit
Elevation B
Additional-
m(ft) Refrigerant
g/m(klb/ft)
Max.
20(30)
40(60)
30(98.4)
Outdoor unit
B