13
Application Information
Refrigerant Piping
Piping Length and Elevation
When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases,
system piping resistance to the refrigerant
fl
ow increases, thus lowering the cooling capacity, and as the result
the compressor may become defective. Always choose the shortest path and follow the recommendation as
tabulated below:
Outdoor Unit
Indoor Unit
L
H
Cooling Only Model
Model
Indoor
FT10JXV1 FT15JXV1 FT20JXV1 FT25JXV1
FT30FXV1
Outdoor
R09CXV1
R15CXV1
R18CXV1
R25CXV1
R28CXV1
R30DXV1
R30DXY1
Min. Allowable Length (L), m
3
Max. Allowable Length (L), m
12
12
25
35
15
45
Max. Allowable Elevation (E), m
5
5
15
20
8
15
Gas Pipe Size, mm/(in)
9.52 / (3/8") 12.70 / (1/2") 15.88 / (5/8") 15.88 / (5/8") 15.88 / (5/8")
15.88 / (5/8")
Liquid Pipe Size, mm/(in)
6.35 / (1/4") 6.35 / (1/4") 6.35 / (1/4") 9.52 / (3/8") 9.52 / (3/8")
9.52 / (3/8")
Heatpump Model
Model
Indoor
FTY09JXV1 FTY15JXV1 FTY20JXV1 FTY25JXV1
FTY30FXV1
Outdoor
RY09CXV1 RY15CXV1 RY20CXV1 RY25CXV1 RY28CXV1 R30DXV1
Min. Allowable Length (L), m
3
Max. Allowable Length (L), m
12
12
15
15
15
45
Max. Allowable Elevation (E), m
5
5
8
8
8
15
Gas Pipe Size, mm/(in)
9.52 / (3/8") 12.70 / (1/2") 15.88 / (5/8") 15.88 / (5/8") 15.88 / (5/8") 15.88 / (5/8")
Liquid Pipe Size, mm/(in)
6.35 / (1/4") 6.35 / (1/4") 6.35 / (1/4") 9.52 / (3/8") 9.52 / (3/8") 9.52 / (3/8")
Additional Charge
The refrigerant gas is charged in the outdoor unit and, if the piping length is 7.6m, additional charge of the
refrigerant after vacuuming is not necessary.
When the piping length is more than 7.6m, additional refrigerant charge (g) per additional 1m length as
tabulated:
R22 – Cooling Only
Indoor
FT10JXV1 FT15JXV1 FT20JXV1 FT25JXV1
FT30FXV1
Outdoor
R09CXV1
R15CXV1
R18CXV1
R25CXV1
R28CXV1
R30DXV1
R30DXY1
Add. Charge, g/m
20
20
19
39
55
55
55
R22 – Heatpump
Indoor
FTY09JXV1 FTY15JXV1 FTY20JXV1 FTY25JXV1
FTY30FXV1
Outdoor
RY09CXV1 RY15CXV1 RY20CXV1 RY25CXV1 RY28CXV1 RY30DXV1
Add. Charge, g/m
20
20
20
55
58
55
•
•
DAIKIN_FT(Y).indb 13
DAIKIN_FT(Y).indb 13
10/15/2012 4:27:10 PM
10/15/2012 4:27:10 PM
Содержание FT-J series
Страница 2: ......
Страница 41: ...38 Outline Dimension Model FT Y 30FXV1 Note Dimension in mm...
Страница 51: ...48 Wiring Diagram Indoor Unit Model FTY30FXV1 Outdoor Unit Model RY28CXV1...
Страница 60: ......