Construction
E - 7
2. System Configuration
Outdoor unit
Unit part
70 type 90 type 120 type 150 type 190 type
Switch capacity(A) 30
Fuse capacity(A) 15
Capacity(A) 20
Leakage current(mA) 30
Earth leakage
breaker
Operation time(sec) 0.1 or less
Cable minimum size
2mm
2
(29)
2mm
2
(29)
2mm
2
(17)
2mm
2
(17)
2mm
2
(17)
Up to 25ｍ length 2mm
2
2mm
2
3.5mm
2
3.5mm
2
3.5mm
2
Up to 50ｍ length 3.5mm
2
3.5mm
2
8mm
2
8mm
2
8mm
2
Up to 75ｍ length 5.5mm
2
5.5mm
2
14mm
2
14mm
2
14mm
2
Up to 100ｍ length 8mm
2
8mm
2
14mm
2
14mm
2
14mm
2
Electrical power
cable
（metal sheath,
vinyl chloride
sheath）
Voltage drop
standard
2%
Up to 200m length 14mm
2
14mm
2
- - -
Grounding cable size 2mm
2
Size of inter-unit operation cable
(between outdoor and indoor units)
0.5mm
2
-2mm
2
(total length up to 1000m)
(1) Cable thickness and fitting capacities
1Cable capacity (Standard power cable is 600V vinyl cable, IV cable, supplied on site.)
●Single phase specification
● The value inside the ( ) for cable minimum size is the maximum length (m).
● The outdoor unit power source cannot be a bus system.
● The capacity of the indoor units is not included.
Please note that the general power source cannot be located where indoor unit is installed.
● For the selection of the earth leakage breaker, a delay type is recommended for protection coordination.
● Cable type
• CVV (JIS C3401) Vinyl insulated vinyl sheath cable for control
• VCTF (JIS C3306) Vinyl cabtire round cord
• VCT (JIS C3312) 600V vinyl cabtire cable
• VVR (JIS C3342) Round vinyl insulated vinyl sheath cable
• MVVS or CPEVS Shield cable (If used be sure to ground on one side)
Note) Do not run together with the power cable. (Separate by 30cm or more.)
If they are run together, then use a conduit or a shield.
● Branch cables
• There should be no more than 16 branch locations.
• The distance between branch point and branch point should be more than 2m.
• Branch: Use up to 3 cables per branch. Four or more cables, or branching after a branch are not
permitted.
Indoor/outdoor operation cable
Earth leakage breaker
Earth leakage breaker
Outdoor
power cable
Outdoor unit
Grounding
Grounding
Grounding
Grounding
Grounding
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Remote
control
(separately sold item)
Remote
control
(separately sold item)
Remote
control
(separately sold item)
Remote
control
(separately sold item)
Indoor power cable
2The indoor/outdoor operation cable
(2)Diagram of electrical cabling system
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