7
English
Table 3
Piping size
[in. (mm)]
Tightening
angle
Recommended arm length of
tool used [in. (mm)]
f
3/8 (9.5)
60° – 90°
Approx. 8 (200)
f
5/8 (15.9)
30° – 60°
Approx. 12 (300)
CAUTION
Insulation of field piping must be carried out up to the
connection inside the flare nut of the air conditioner.
If the piping is exposed to the atmosphere, it may cause
sweating, burn due to touching the piping, electric shock or
fire due to the wiring touching the piping.
• After leak test, referring to Fig. 12, insulate both the
gas and liquid piping connection with the attached joint
insulating material (8) and (9) to prevent the piping from
getting exposed.
Then, tighten the both ends of insulating material with
the clamp (4).
• Wrap the sealing material (Medium-1, 2) (11) (12) around
the joint insulating material (8) and (9) (flare nut section),
both the gas and liquid piping.
• Make sure to bring the seam of joint insulating material
(8) and (9) to the top.
Connected portion (Union joint)
Refrigerant piping
Joint insulating
material (9)
(Accessory)
Piping holding plate screw
(2 locations)
Gas piping
Liquid piping
Liquid piping insulating method
Indoor unit
Indoor unit
Clamp (4)
(Accessory)
Sealing material
(11) Medium-1
(Accessory)
Sealing material
(12) Medium-2
(Accessory)
Clamp (4)
(Accessory)
Piping
insulating
material
(Field supply)
Gas piping insulating method
Joint insulating
material (8)
(Accessory)
Piping insulating
material (Main unit)
Bring the
seam
to the top.
Flare nut
connection
Piping
insulating
material
(Field supply)
Do not leave
clearance.
Flare nut
connection
Bring the
seam
to the top.
Do not leave
clearance.
Piping insulating
material (Main unit)
Wind around the
piping until top of the
flare nut connection,
beginning at the base.
Wind around the
piping, beginning
at the base.
Do not expose the
piping in order to
prevent
condensation.
Tighten the portion
where overlapped by
the piping insulating
material.
Tighten the portion
where overlapped by
the piping insulating
material.
Do not expose the
piping in order to
prevent the vapor
condensation.
Fig. 12
01_EN_3P693452-2.indd 7
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