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18 Room Air Conditioner
Piping Length And Elevation
• Capacity is based on standard length and maximum allowance length is on the basis of reliability.
• Oil trap should be installed every 5~7meters (16.4~23.0ft).
Pipe Size
Capacity
(Btu/h)
Suction
Evap
Max.
length
A m(ft)
Additional Refrigerant
g/m(oz/ft)
Max.
Elevation
B m(ft)
Standard
Length
m(ft)
In case more than 5m(16.4ft)
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
9k(C/O) 3/8" 1/4" 7.5(25) 7.5(25) 15(49) 20(0.22)
9k(H/P), 12k 1/2" 1/4" 7.5(25) 7.5(25) 15(49) 20(0.22)
18k(C/O) 1/2" 1/4" 7.5(25) 15(49) 30(98) 20(0.22)
18k(H/P), 24k 5/8" 1/4" 7.5(25) 15(49) 30(98) 30(0.32)