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Piping installation
Installer and user reference guide
64
FXHA32~100AVEB
VRV system air conditioner
4P673749-1 – 2022.01
a b
e
f
d
c
a
Round part
b
Rectangular part of the decoration side panel
c
Decoration side panel
d
Screw
e
Reinforcing plate
f
Right refrigerant piping
4
After the drain and refrigerant piping is finished, install the reinforcing plate
and the decoration side panel back.
a
c
b
a
Screw
b
Reinforcing plate
c
Decoration side panel
▪
Pipe length
. Keep refrigerant piping as short as possible.
▪
Flare connections
. Connect refrigerant piping to the unit using flare connections.
▪
Insulation
. Insulate the refrigerant piping on the indoor unit as follows:
A
B
a
d
c
e f
b
b
a
d
c
e f
b
b
2
4
3
g
1
2
3
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 pad (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.
