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Multi Split Type Air Conditioner / User Manual
Additional refrigerant per pipe length
Connective pipe
length (m)
Air
purging
method
Additional refrigerant
Pre-charge pipe length
(ft/m) (pre-charge pipe
length xN )
Vacuum
Pump
N/A
More than (pre-charge
pipe lengthxN) ft/m
Vacuum
Pump
Liquid Side: Ø 6.35 (ø 1/4”) R32:
(Total pipe length - pre-charge pipe
lengthxN) x 12g/m
(Total pipe length - pre-charge pipe
lengthxN) x 0.13oZ/ft
Liquid Side: Ø 9.52 (ø 3/8”) R32:
(Total pipe length - pre-charge
pipe lengthxN) x 24g/m
(Total pipe length - pre-charge
pipe lengthxN) x 0.26oZ/ft
Liquid Side: Ø 6.35 (ø 1/4”) R410A:
(Total pipe length - pre-charge pipe
lengthxN) x 15g/m
(Total pipe length - pre-charge pipe
lengthxN) x 0.16oZ/ft
Liquid Side: Ø 9.52 (ø 3/8”)
R410A:
(Total pipe length - pre-charge
pipe lengthxN) x 30g/m
(Total pipe length - pre-charge
pipe lengthxN) x 32oZ/ft
C
The standard pipe length is
7.5m.
Only for Australia models :
• DO NOT mix refrigerants types.N=2(one-twin
models),N=3(one-three models),N=4(one-four
models),N=5(one-five models). Some systems
require additional charging depending on pipe
lengths. The standard pipe length is 10m. The
additional refrigerant to be charged can be
calculated using the following formula:
6 Air evacuation