To Connect The Refrigerant Piping To The Indoor Unit - Daikin CVXM20A2V1B Installer's Reference Manual

7.2.6 To connect the refrigerant piping to the indoor unit

CVXM20+FVXM25~50A2V1B
Split system air conditioners
4P625991-1 – 2020.06
5 Check that the flaring is properly made.
a
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.
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
▪ Pipe length. Keep refrigerant piping as short as possible. Minimum is 3 m.
1 Connect refrigerant piping to the unit using flare connections.
2 Insulate the refrigerant piping on the indoor unit as follows:
a
b
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.
a
c
b
a Refrigerant pipe connection
b Refrigerant piping (field supply)
c Slit
d Tape
e Insulation piece (accessory)
b
c
c
d
a
a
c
e
d
d
e
b
b
7 Piping installation
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a
b
Installer reference guide
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