Daikin FFRN25CXV1 Technical Manual page 17

4) Refrigerant Piping
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:
Model
Max. Length, m
Max. Elevation, m
Max. No. of Bends
Model
Max. Length, m
Max. Elevation, m
Max. No. of Bends
Model
Max. Length, m
Max. Elevation, m
Max. No. of Bends
Piping sizes (fl are connection type) are as follows:
Model
Liquid, mm / in
Suction, mm / in
Model
Liquid, mm / in
Suction, mm / in
Model
Liquid, mm / in
Suction, mm / in
DAIKIN_FFRN.indb 14 DAIKIN_FFRN.indb 14
FFRN25CXV1
Indoor
FFQN25CXV1
Outdoor R(Y)N25CXV1
12
5
10
FCRN50EXV1
Indoor
FCQN50EXV1
Outdoor R(Y)N50CXV1
15
8
10
Indoor
RR90/100DXV1
Outdoor
RQ90/100DXV1
R(Y)N25CXV1 R(Y)N35CXV1
6.35 / 1/4
9.52 / 3/8
R(Y)N60CXV1
6.35 / 1/4
15.88 / 5/8
RR100DXV1 RR100DXY1
RQ100DXV1 RQ100DXY1
FFRN35CXV1
FFQN35CXV1
R(Y)N35CXV1
12
5
10
FCRN60EXV1
FCQN60EXV1
R(Y)N60CXV1
15
8
10
FCRN100EXV1
FCQN100EXV1
RR100DXY1
RQ100DXY1
45
25
10
R(Y)N50CXV1
6.35 / 1/4 6.35 / 1/4
12.70 / 1/2 12.70 / 1/2
RR71CXV1 RR90DXV1
RQ71CXV1 RQ90DXV1
9.52 / 3/8 9.52 / 3/8
15.88 / 5/8 15.88 / 5/8
RR125DXY1
RQ125DXY1
9.52 / 3/8
15.88 / 5/8
Application Information
FFRN50CXV1
FFQN50CXV1
R(Y)N50CXV1
15
8
10
FCRN71EXV1
FCQN71EXV1
RR71CXV1
RQ71CXV1
15
8
10
FCRN125EXV1
FCQN125EXV1
RR125DXY1
RQ125DXY1
45
25
10
14
12/27/2012 9:28:09 AM 12/27/2012 9:28:09 AM