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Airwell CDMX-022N-09M25 Manual De Instalación página 41

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Note on Adding Refrigerant
Some systems require additional charging depending on pipe lengths. The standard pipe length varies
according to local regulations. For example, the standard pipe length is 7.5m (25').
The refrigerant should be charged from the service port on the outdoor unit' s low pressure valve. The
additional refrigerant to be charged can be calculated using the following formula:
R32 :
CAUTION
DO NOT
φ6.35(1/4")
(Total pipe length -
standard pipe length)x
12g(0.13oZ)/m(ft)
mix refrigerant types.
Liquid Side Diameter
φ9.52(3/8")
φ12.7(1/2")
(Total pipe length -
(Total pipe length -
standard pipe length)x
standard pipe length)x
24g(0.26oZ)/m(ft)
40g(0.42oZ)/m(ft)
Page 40

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