English
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CAUTION
• Do not have oil adhere to the screw fixing part of resin parts.
If oil adheres, it may weaken the strength of screwed part.
• Do not tighten flare nuts too tight.
If a flare nut cracks, the refrigerant may leak.
CAUTION
Insulation of field piping must be carried out up to the con-
nection inside the casing. If the piping is exposed to the
atmosphere, it may cause sweating or burn due to touching
the piping, electric shocks or a fire due to the wiring touch-
ing the piping.
• After leak test, referring to Fig. 15, insulate both the gas and
liquid piping connection with the attached joint insulating
material (6) and (7) to prevent the piping from getting
exposed. Then, tighten the both ends of insulating material
with the clamp (4).
• Wrap the sealing material (Small) (9) around the joint insulat-
ing material (6) (flare nut section), only the gas piping side.
• Make sure to bring the seam of joint insulating material (6)
and (7) to the top.
(1) For rear side piping
• Remove the rear piping penetration cover, and connect
the piping. (Refer to Fig. 16 and Fig. 18)
(2) For upward piping
• For upward piping, L-shaped connection piping kit
(optional accessory) will be required.
• Remove the top panel penetration cover, and use the L-
shaped connection piping kit (optional accessory) to con-
duct piping. (Refer to Fig. 16 and Fig. 17)
(3) For right side piping
• Remove the stay for packing and delivering (reinforcing
plate) at the right side, and put back the screw to the orig-
inal position of the indoor unit. (Refer to Fig. 18)
• Open the knockout hole at the decoration side panel
(right), and connect piping. (Refer to Fig. 18)
Fig. 15a
Gas piping
Liquid piping
Indoor unit
Joint insulating material (6) (accessory)
Gas side piping insulating method
Piping insulating material (unit side)
Do not leave
clearance
Wrap from the
root of the unit
Sealing material (Small) (9)
(accessory)
Bring the seam
to the top
Flare nut
connection
Piping insulating material
(field supply)
For prevention of sweating,
do not expose the piping
Clamp (4) (accessory)
Tighten the piping
insulating material
Fig. 15b
Liquid side piping insulating method
Joint insulating material (7)
(accessory)
Flare nut
connection
Piping insulating
material (field supply)
For prevention of sweating,
do not expose the piping
Fig. 15c
Bring the seam
to the top
Piping insulating material
(unit side)
Do not leave clearance
Clamp (4)
(accessory)
Tighten the piping
insulating material
Top panel penetration cover
Cut at the position avoiding
the knob part of the
penetration cover
Rear piping penetration cover
View from
air inlet side
Cutoff
Cutoff
Top panel
Fig. 16
Upward refrigerant piping
L-shaped branch piping kit
(Optional accessory)
Fig. 17
4PEN469440-1H.book Page 8 Friday, March 22, 2019 2:36 PM
