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Installation
※ In case you want more information about the controllers and accessories, please refer to the Controller and
Accessory TDB on pvi.Samsung.com site or Global Partner Portal site.
Connecting the refrigerant pipe
Items
Maximum allowable length
Single installation DPM installation
Applicable outdoor unit models
AC026RXADKG
AC035RXADKG
AC052RXADKG AC071RXADKG AC071RXADKG
Total pipe length (L₁+L₂+L₃) - - - 50m
Main pipe (L₁) 20m 30m 50m 30m
Max. distance among indoor units (D) - - - 10m
Max. length after branch - - - 15m
Max. height difference between
outdoor and indoor units (h₁)
15m 20m 30m ±30m
Max. height difference among indoor
units(h₂)
- - - ±0.5m
Max Pipe length difference among
indoor units after branch (L₂-L₃)
- - - ±5m
n=1
indoor
Outdoor
indoor
Outdoor
indoor
n=2
L
1
h
1
L
1
L
2
L
3
h
2
h
1
D
Temper grade and minimum thickness of the refrigerant pipe
Outer diameter
[mm]
Minimum
thickness [mm]
Temper grade
ø6.35 0.7
C1220T-O
ø9.52 0.7
ø12.70 0.8
ø15.88 1.0
ø15.88 0.8
C1220T-1/2H OR
C1220T-H
ø19.05 0.9
ø22.23 0.9
CAUTION
Be sure to use C1220T-1/2H (Semi-hard) pipe for more
than Ø19.05 mm. If you use C1220T-O (Soft) pipe for
Ø19.05 mm, the pipe may be broken, which can result
in an injury.
Make at least one round:
It will reduce noise and vibration
The appearance of the unit may be different from the
diagram depending on the model.
CAUTION
After connecting the pipes with knock-out treatment,
plug the space around the pipes.
After connecting the pipes, proceed exactly as directed in
the guide to prevent interference with the internal parts.
Tighten the nuts to the specified torques. If overtightened,
the nuts could be broken so refrigerant may leak.
Protect or enclose refrigerant tubing to avoid
mechanical damage.
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