Installation Clearance; Refrigerant Piping - Daikin FDM20JEVLK Installation Manual

• Outdoor units must be installed such that there is no short circuit of the hot discharge air or obstruction to smooth air ow. Select
the coolest possible place where intake air should not be hotter than the outside temperature (refer to operating range).
A
Air
Inlet
All Model
Minimum Distance (mm)
Maximum Pipe Length
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 ow increases, thus lowering the cooling capacity. As a result, compressor reliability will
be affected. Always choose the shortest path and follow the recommendation as tabulated below:
Model Indoor
Outdoor
Max. allowable length, m
Max. allowable elevation, m
Liquid pipe size, mm/(in)
Gas pipe size, mm/(in)
Remark : For FDM60JEVLK cooling unit, recommended to add 6 kg external accumulator

INSTALLATION CLEARANCE

B
Air
Discharge
A
300

REFRIGERANT PIPING

FD(Y)M20JEVLK FD(Y)M25JEVLK FD(Y)M30JEVLK FD(Y)M40JEVLK FD(Y)M50JEVLK FD(Y)M60JEVLK
R(Y)D20JEVLK R(Y)D25JEVLK
30 30
15 15
6.35 9.52
(1/4") (3/8")
15.88 15.88
(5/8") (5/8")
C
Air
Inlet
B
1000
R(Y)D30JEVLK R(Y)D40JEVLK
40 40
25 25
9.52 9.52
(3/8") (3/8")
15.88 19.05
(5/8") (3/4")
1-11
D
Service
Space
C D
300 500
R(Y)D50JETLK R(Y)D60JETLK
45 45
25 25
9.52 12.7
(3/8") (1/2")
19.05 19.05
(3/4") (3/4")