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9.7 Selection of the Refrigerant Pipe
Item
Model
Size of the Refri-
(inch)
Max.
Pipe
Length
(m)
Max. Height
Difference between
Indoor Unit and
Outdoor Unit (m)
Amount of Additional
Refrigerant to be Filled
(For Extra Length of
Pipe)
Gas
Pipe
Liquid
Pipe
RFDM24PEVLK
RYFDYM24PEVLK
5/8
3/8
30
15
60g/m
RFDM30PEVLK
RYFDYM30PEVLK
R FDM36PEVLK
RY FDYM36PEVLK
3/4
1/2
50
30
120g/m
R FDM42PEVLK
R FDM42PEVLK
RY FDYM42PEVLK
RY FDYM42PEVLK
R FDM48PEVLK
R FDM48PEVLK
RY FDYM48PEVLK
RY FDYM48PEVLK
Note:
The standard pipe length is 5m. When the length (L) of the refrigerant pipe is less than or equals 5m,
1.
there is no need to add refrigerant. If the pipe is longer than 5m, it is required to add refrigerant.
In the above table, the amounts of refrigerant to be added for the models are listed for each addi-
tional meter of pipe length.
The pipe thickness shall be 0.5-1.0 mm and the pipe thickness shall be able to withstand the pressure
2.
of 6.0 MPa.
The longer the refigerant pipe, the lower the cooling effect and the heating effect.
3.
9.8 Connection of the Refrigerant Pipe.
9.8.1 Installation Sketch of Throttle Valve
Structure of throttle valve
1.
S24
S20
S16
1
2
3
4
5
6
7
8
9.7 Structure of throttle valve
Fig.
No. Names
No. Names
1
1/2 Copper seal cap
5
Valve base A
2
Coupling nut
6
Joint
3
Filter (60 mesh)
7
Seal gasket
4
Joint 8
Seal
cap
gerant Pipe