LG UU12 - Page 8

8 Air Conditioner
Installation of Indoor, Outdoor Unit
3. Piping length and the elevation
Gas Liquid Standard Max. Standard Max .
UU12 3/8”(9.52mm) 1/4”(6.35mm) 5 15 2 10 20
UU18 1/2”(12.7mm) 1/4”(6.35mm) 5 50 2 30 35
UU24 5/8”(15.88mm) 3/8”(9.52mm) 7.5 40 2 30 45
UU30 5/8”(15.88mm) 3/8”(9.52mm) 7.5 50 2 30 45
UU37 5/8”(15.88mm) 3/8”(9.52mm) 7.5 50 2 30 45
Capacity
Pipe Size
Length A(m) Elevation B(m)
*Additional
(Diameter:Ø)
refrigerant(g/m)
Oil trap
Gas piping
Liquid piping
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
*15m
* Install trap at each
difference in height
15m
A trap is not necessary when the
outdoor unit is installed in a higher
position than the indoor unit.
CAUTION:
• Rated performance for refrigerant line length of:7.5m(UU12, UU18 : 5m)
• Capacity is based on standard length and maximum allowance length is on the
basis of reliability.
• Improper refrigerant charge may result in abnormal cycle.