Operating Instructions and Installation Instructions

V 03/17
63
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
tagliatubi
inclinato irregolare sbavatura
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
the pipe.
verso il
basso
tubo
limatrice
tubo pipe
limatrice file
versoilbasso downwards
3. Secure an insulating tube
4. Install a union nut
• Remove the union nut on the
indoor connecting pipe and outdoor valve.
Install the union nut on the pipe.
tubo di raccordo
tubo
5. Expand the port
Expand the port using a pipe expander.
allarga-
tubi
forma
dura
tubo
allargatubi pipeexpander
formadura hardmould
tubo pipe
N.B.:
• "A" varies according to diameter:
A (mm)
Outdoor diameter
(mm)
Max. Min.
6.35 (1/4") 1.3 0.7
9.52 (3/8") 1.6 1.0
6. Inspection
Check the quality of the expanded port. If
defective, expand the port again following the
procedure described above.
lunghezza uguale
allargamento imperfetto
inclinato
superficie
danneggiata
fessura-
zione
spessore
irregolare
superficie liscia
superficieliscia smoothsurface
allargamentoimperfetto defectiveexpansion
lunghezzauguale equallength
inclinato slanted
superficiedanneggiata surfacedamaged
fessurazione cracked
spessoreirregolare uneventhickness


tubodiraccordounionpipe
tubo pipe