1-10
Model ATXN25MV1B ATXN35MV1B ATXN50MV1B ATXN60MV1B
Min. Allowable Length (L), m 33
Max. Allowable Length (L), m 20 30
Max. Allowable Elevation (E), m 10 10
Gas Pipe Size, mm/(in) 9.52 (3/8") 12.70 (1/2") 15.88 (5/8")
Liquid Pipe Size, mm/(in) 6.35 (1/4") 6.35 (1/4")
L E
Indoor ATXN25MV1B ATXN35MV1B ATXN50MV1B ATXN60MV1B
Outdoor ARXN25MV1B ARXN35MV1B ARXN50MV1B ARXN60MV1B
Additional charge [g/m] 20 20 20 20
Additional refrigerant charge [g] per additional 1m length as tabulated
*Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance.
Remark: The refrigerant pre-charged in the outdoor unit is for piping length up to 7.5m.
Outdoor Unit
Indoor unit
Allowable Piping Length
If the pipe is too long, both the capacity and reliability of the unit will drop. As the number of bends increases, resistance to
the flow of refrigerant system increases, thus lowering cooling capacity. As a result, the compressor may become defective.
Always choose the shortest path and follow the recommendations as tabulated below:
REFRIGERANT PIPING
Additional Charge
The refrigerant is pre-charged in the outdoor unit. If the piping length is less than 7.5m, then additional charge after vacuuming
is not necessary. If the piping length is more than 7.5m, then use the additional charge value as indicated in the table.
Example:
ATXN25MV1B & ARXN25MV1B with 12m piping length, additional piping length is 4.5m. Thus,
Additional charge = 4.5[m] x 20[g/m]
= 90.0[g]
1 IM-5WMYJ-1113(0)DK SIESTA_EN.i10 101 IM-5WMYJ-1113(0)DK SIESTA_EN.i10 10 1/13/14 5:17:29 PM1/13/14 5:17:29 PM
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