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EN-129
EN-130
CAUTION
1.
Do not put the crescent wrench on the cap or cover.
The valve may break.
2.
If applying excessive torque, the nut may break
according to some installation conditions.
• After the installation work, be sure to check for gas
leaks of the pipe connections with nitrogen.
• Pressure of R410A is higher than that of R22 (Approx.
1.6 times).
Therefore, using a torque wrench, tighten the flare
pipe connecting sections that connect the indoor/
outdoor units at the specified tightening torque.
Incomplete connections may cause not only a gas
leak, but also trouble with the refrigeration cycle.
Do not apply refrigerating machine oil to the flared
surface.
NO GOOD
Cover
Cap
Refrigerant Pipe Length
Single
Simultaneous twin, triple
Allowable pipe length (m)
Height difference (Indoor-outdoor H) (m)
Total length L
Indoor unit: Upper
Outdoor unit: Lower
75
30
30
Pipe diameter (mm)
Number of bent portions
Gas side
Liquid side
10 or less
Ø15.9
Ø9.5
System
Model
Allowable pipe length (m)
Height difference (m)
Total length
• 1
+ 2
• 1
+ 3
• 1
+ 4
Maximum
Distributed
pipes
• 2
• 3
• 4
Maximum
Distributed
pipes
• 3
– 2
• 4
– 2
• 4
– 3
Maximum
Indoor-outdoor H
Indoor-
indoor (
Δ
h)
Indoor unit:
Upper
Outdoor
unit: Upper
TWIN
SP110
50
15
10
30
30
0.5
SP140,
SP160
50
15
10
30
30
0.5
TRIPLE
SP160 only
50
15
10
30
30
0.5
System
Model
Pipe diameter (mm)
Number of
bent portions
Main pipe
Branching pipe
Gas side
Liquid side
Gas side
Liquid side
TWIN
SP110
Ø15.9
Ø9.5
Ø12.7
Ø6.4
10 or less
SP140,
SP160
Ø15.9
Ø9.5
Ø15.9
Ø9.5
10 or less
TRIPLE
SP160 only
Ø15.9
Ø9.5
Ø12.7
Ø6.4
10 or less
H
L
Figure of Single
Indoor Unit
Outdoor Unit
3
2
4
1
H
1
2
3
H
Figure of Simultaneous twin
Indoor Unit
Indoor Unit
Outdoor Unit
Distributor
Indoor Unit
Indoor Unit
Outdoor Unit
Distributor
Indoor Unit
Figure of Simultaneous triple