7 | Piping installation
Installer reference guide
41
CVXM-A, FVXM-A, CVXM-A9, FVXM-A9, FVXTM-A
Split system air conditioners
4P625991-1F – 2022.09
a Cut exactly at right angles.
b Remove burrs.
3 Remove the flare nut from the stop valve and put the flare nut on the pipe.
4 Flare the pipe. Set exactly at the position as shown in the following figure.
Flare tool for R32
(clutch type)
Conventional flare tool
Clutch type
(Ridgid-type)
Wing nut type
(Imperial-type)
A 0~0.5mm 1.0~1.5mm 1.5~2.0mm
5 Check that the flaring is properly made.
a Flare’s inner surface MUST be flawless.
b The pipe end MUST be evenly flared in a perfect circle.
c Make sure the flare nut is fitted.
7.2.6 To connect the refrigerant piping to the indoor unit
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
▪ Pipe length. Keep refrigerant piping as short as possible.
1 Connect refrigerant piping to the unit using flare connections.
2 Insulate the refrigerant piping on the indoor unit as follows:
a Gas pipe
b Gas pipe insulation
c Liquid pipe
d Liquid pipe insulation
NOTICE
Make sure to insulate all refrigerant piping. Any exposed piping might cause
condensation.
3 Close the slit on the refrigerant pipe connection and secure it with a tape
(field supply). Make sure there are no gaps.
4 Wrap the slit and the end of the insulation of the connected refrigerant piping
with insulation piece (accessory). Make sure there are no gaps.
To Next Page
Loading...
Need help?
General
