70
V 02/21
MAINTENANCE NOTES
Attention
:
For maintenance or scrap, please contact authorized service centers.
Maintenance by unqualified person may cause dangers.
APPENDICES
Piping configuration
Connecting pipe diameter
Additional refrigerant
Liquid pipe (mm)
Gas pipe (mm)
(g/m)
6.35
9.52
20
Procedure for extending the piping
N.B.:
Improper extension of piping is the main cause of refrigerant leaks. Proceed as shown below:
1. Cut the pipe
•
Check the length of the pipe based
on the distance between the indoor
unit and outdoor unit.
• Cut the required pipe using a pipe cutter.
tubo
pipe
tagliatubi
pipe cutter
inclinato
slanted
irregolare
uneven
sbavatura
burred
2. Remove burrs
• Remove burrs with a file,
ensuring they do not go into
5. Expand the port
Expand the port using a pipe expander.
allargatubi
pipe expander
forma dura
hard mould
tubo
pipe
N.B.:
A"
varies according to diameter:
Outdoor diameter (mm)
A (mm)
Max.
Min.
6.35 (1/4")
1.3
0.7
