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Piping installation
Installer and user reference guide
65
FXUA50~100AVEB
VRV system air conditioner
4P673843-1 – 2022.01
A
B
a
d
c
e f
b
b
a
d
c
e f
b
b
2
4
3
g
1
2
3
4
g
1
B
A
A
Gas piping
B
Liquid piping
a
Insulation material (field supply)
b
Tie wrap (accessory)
c
Insulation pieces: Large (gas pipe), small (liquid pipe) (accessory)
d
Flare nut (attached to the unit)
e
Refrigerant pipe connection (attached to the unit)
f
Unit
g
Small sealing pads (accessory)
1
Turn up the seams of the insulation pieces.
2
Attach to the base of the unit.
3
Tighten the tie wrap on the insulation pieces.
4
Wrap the sealing pad from the base of the unit to the top of the flare nut.
For
upward
and
right
piping, use the attached L-shaped piping, and insulate on
both ends of the L-shaped piping.
a
b
d
b
e
c
a
Piping insulation material (field supply)
b
Tie wrap (accessory)
c
Flare nut connection
d
Insulation piece: Large (gas pipe) (accessory)
e
L-shaped piping (accessory)
INFORMATION
In addition, bend the liquid piping with a radius ≤40 mm using a pipe bender. If the
attached L-shaped piping is NOT used or if the bending radius is >40 mm, this may
interfere with other piping or the drain hose.
NOTICE
Make sure to insulate all refrigerant piping. Any exposed piping might cause
condensation.
