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Beschikbare talen
Digital Inverter
1. Do not put the spanner on the cap or cover.
The valve may be broken.
2. If applying excessive torque, the nut may
be broken according to some installation
conditions.
• After the installation work, be sure to check gas
leak of connecting part of the pipes with nitrogen.
Refrigerant Pipe Length
Single
Allowable pipe
length (m)
Total length
50
Simultaneous twin, triple
Allowable pipe length (m)
Total
length
System
•
•
•
Maximum
TWIN
TRIPLE
Figure of Single
Indoor Unit
Outdoor Unit
13-EN
CAUTION
NO GOOD
Cover
Cap
Height difference (Indoor-outdoor H) (m) Pipe diameter (mm)
L
Indoor unit: Upper
30
Distributed
Distributed
pipes
pipes
+
•
•
•
–
1
2
2
4
3
2
+
•
•
–
1
3
3
4
3
+
Maximum
•
–
1
4
4
2
Maximum
50
15
10
50
15
10
Figure of Simultaneous twin
Indoor Unit
Outdoor Unit
Distributor
2
• Pressure of R410A is higher than that of R22
(Approx. 1.6 times).
Therefore, using a torque wrench, tighten the
flare pipe connecting sections which connect
the indoor/outdoor units at the specified
tightening torque.
Incomplete connections may cause not only a
gas leak, but also a trouble of the refrigeration
cycle.
Do not apply refrigerating machine oil to the
flared surface.
Outdoor unit: Lower Gas side
30
Ø15.9
Height difference (m)
Pipe diameter (mm)
Indoor-outdoor H Indoor-
Main pipe
indoor
Indoor
Outdoor
Gas side Liquid
(Δh)
unit:
unit:
Upper
Upper
30
30
0.5
Ø15.9
30
30
0.5
Ø15.9
Indoor Unit
Indoor Unit
Outdoor Unit
3
1
– 13 –
Outdoor Unit Installation Manual
Number of bent
portions
Liquid side
10 or less
Ø9.5
Number of
bent
Branching pipe
portions
Gas side Liquid
side
side
Ø9.5
Ø15.9
Ø9.5
10 or less
Ø9.5
Ø12.7
Ø6.4
10 or less
Figure of Simultaneous triple
Indoor Unit
Indoor Unit
4
2
3
Distributor
1
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