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17
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Piping installation
Installer and user reference guide
66
a b
c
d
e
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
(optional step) and the decoration side panel back.
c
a
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 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.
f
A
a
b
c
d
b
e f
a
b
3
2
1
1
g
4
B
c
d
b
e f
3
2
VRV system air conditioner
4P673749-1A – 2022.11
FXHA-A
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