Pipe Connection; Pipe Length And The Elevation - LG B62AWYN9L6 Installation Manual

PIPE CONNECTION

Pipe length and the elevation

• Single Operation
Pipe Size mm(inch)
Model
Gas
B62AWYU7L6
Ø22.2(7/8) Ø12.7(1/2)
B70AWYU7L6
If installed tube is shorter than 15 m, addition-
al charging is not necessary.
Additional Refrigerant
= (A-15) x Additional refrigerant (g)
WARNING
!
• Regulation for refrigerant leakage
: the amount of refrigerant leakage should satisfy the following equation for human safety.
Total amount of refrigerant in the system
Volume of the room at which Indoor Unit of the least capacity is installed
If the above equation can not be satisfied, then follow the following steps.
• Selection of air conditioning system: select one of the next
- Installation of effective opening part
- Reconfirmation of Outdoor Unit capacity and piping length
- Reduction of the amount of refrigerant
- Installation of 2 or more security device (alarm for gas leakage)
• Change Indoor Unit type
: installation position should be over 2 m from the floor (Wall mounted type → Cassette type)
• Adoption of ventilation system
: choose ordinary ventilation system or building ventilation system
• Limitation in piping work
: Prepare for earthquake and thermal stress
Length A(m)
Liquid Standard
15
Indoor unit
PIPE CONNECTION
Elevation B(m)
Max. Standard
75 5
A
B
Outdoor unit
≤ 0.44 (kg / m
23
Additional
refrigerant
Max.
(g/m)
30 70
Outdoor unit
A
Indoor unit
B
3
)