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English
Connecting the refrigerant pipe
Refrigerant piping system
Items
Maximum allowable length
Single installation
Applicable outdoor unit models
AC012MXQFEC
AC018MXQFEC
AC024MXQFEC
AC030MXQFEC
AC036MXQFEC
AC042MXQFEC
AC048MXQFGC
AC060MXQFGC
Main pipe (L
1
)
20 m
30 m
50 m
75 m
Max. height difference between
outdoor and indoor units (h
1
)
15 m
20 m
30 m
30 m
Indoor
Outdoor
L1
H1
Indoor
Outdoor
L1
H1
f
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
• Make sure to use C1220T-1/2H (Semi-hard) pipe for more than Ø19.05mm. In case of using C1220T-O (Soft)
pipe for Ø19.05mm, pipe may be broken, which can result in an injury.
CAUTION
❋
The appearance of the unit may be different from the diagram depending on the model.
Make at least one round:
It will reduce noise and vibration
• After connecting pipes with knock-out treatment, plug the space.
• Following the pipe connection, make sure to proceed precisely to prevent interference with the internal parts.
CAUTION
Summary of Contents for AC-505CM Series
Page 38: ......
