Samsung AC BXU CH Series - Refrigerant Piping and Brazing

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English
Installation Procedure
Step 5 Connecting the refrigerant pipe
Maximum allowable pipe length [ft(m)]
Model Name Max pipe length (L1) Max pipe height difference between outdoor and indoor unit (h1)
2Ton AC024BXUPCH 98 (30) 49 (15)
3Ton (single fan) AC036BXUDCH 164 (50) 98 (30)
3Ton (dual fan) AC036BXUPCH 164 (50) 98 (30)
4Ton AC048BXUPCH 164 (50) 98 (30)
5Ton AC060BXUPCH 98 (30) 49 (15)
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indoor
outdoor
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Recommended liquid and gas pipe diameters [inch(mm)]
Model Name Liquid Pipe Diameter
Gas Pipe Diameter
Rated Min Max
2Ton AC024BXUPCH עߤࢥߩ࣍ߪࢋߦߣ࣎ עߤࢥߥ࣍ߢߪࢋߡߦ࣎ עߦࢥߩ࣍ߢߦࢋߩߩ࣎ עߨࢥߩ࣍ߣߣࢋߣߤ࣎
3Ton (single fan) AC036BXUDCH עߤࢥߩ࣍ߪࢋߦߣ࣎ עߤࢥߥ࣍ߢߪࢋߡߦ࣎ עߦࢥߩ࣍ߢߦࢋߩߩ࣎ עߨࢥߩ࣍ߣߣࢋߣߤ࣎
3Ton (dual fan) AC036BXUPCH עߤࢥߩ࣍ߪࢋߦߣ࣎ עߨࢥߩ࣍ߣߣࢋߣߤ࣎ עߤࢥߥ࣍ߢߪࢋߡߦ࣎ עߢࣗߢࢥߩ࣍ߣߩࢋߦߩ࣎
4Ton AC048BXUPCH עߤࢥߩ࣍ߪࢋߦߣ࣎ עߨࢥߩ࣍ߣߣࢋߣߤ࣎ עߤࢥߥ࣍ߢߪࢋߡߦ࣎ עߢࣗߢࢥߩ࣍ߣߩࢋߦߩ࣎
5Ton AC060BXUPCH עߤࢥߩ࣍ߪࢋߦߣ࣎ עߨࢥߩ࣍ߣߣࢋߣߤ࣎ עߤࢥߥ࣍ߢߪࢋߡߦ࣎ עߢࣗߢࢥߩ࣍ߣߩࢋߦߩ࣎
Reuse existing refrigerant lines
To retrofit the outdoor unit by using the existing piping, be sure to:
• Confirm that the existing pipe diameter, length, and height difference between outdoor and indoor unit meet the
requirements list above.
• Confirm that the maximum pressure for the indoor unit is equal or higher than the maximum pressure for the
outdoor unit.
• Confirm that the indoor unit is compatible with R-410A, and utilizes a Thermostatic Expansion Valve (TXV).
If existing indoor unit utilizes an orifice plate, replace the orifice plate with a R-410A TXV.
• Flush the inside of the piping to remove moisture, oil and any other foreign matter.
• Make sure to install a two-way filter dryer on the liquid pipe referring to the figure below.
Two-way filter dryer
(Field supply)
NOTE
• Make sure to remove the transparent covers at the edge of the pipes before connecting the pipes.
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