Connecting Indoor Units - Panasonic CU-5E34NBE-C Technical & Service Manual

install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for television,
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radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation.
install in a sturdy manner to avoid increased operating noise.
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Table 3
Max. Allowable
Tubing Length
Model per unit
(m)
CU-5E34NBE 30
* If total tubing length becomes 45 to 80 m (max.), charge additional refrigerant (R410A) by 20 g/m.
No additional charge of compressor oil is necessary.

2-2. Connecting Indoor Units

Figures (A) – (H) show the different types of indoor unit connections, including the use of a reducer.
To select the required indoor unit to be connected, refer to the Combination Table that was included in the
outdoor unit package.
(A)
Outdoor unit
12.70
12.70
9.52
9.52
9.52
(B)
12.70
12.70
9.52
9.52
9.52
Max. Allowable Total
Tubing Length
at shipment
(L1+L2+L3+L4+L5)
(m)
45 (L1+L2+L3+L4+L5)
( 12.70 9.52) Supplied reducer
Flare 12.70 Union
E
6.35
D
6.35
C
6.35
B
6.35
A
6.35
( 12.70 9.52) Supplied reducer
Flare 12.70 Union
Outdoor unit
E
6.35
D
6.35
C
6.35
B
6.35
A
6.35
Limit of Limit of Elevation
Total Tubing Length
(L1+L2+L3+L4+L5) (H1, H2, H3, H4, H5)
(m)
80 (L1+L2+L3+L4+L5)
9.52
Indoor unit
9.52
9.52
9.52
9.52
9.52
Fig. 4a
9.52
Indoor unit
12.70
9.52
9.52
9.52
9.52
Fig. 4b
6
Required Amount
Difference of Additional
Refrigerant
(m) (g/m)
15 20
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME18NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
(CS-ME7NKE)
(CS-ME9NKE)
(CS-ME12NKE)
unit: mm
*