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RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV System Air Conditioner
4P329765-1 – 2012.09
Installation and operation manual
24
12.3. System overview of field wiring
Field wiring consists of power supply (always including earth) and
indoor-outdoor communication (= transmission) wiring.
Examples:
1
Field power supply (with earth leakage protector)
2
Main switch
3
Earth connection
4
Outdoor unit
5
Indoor unit
6
User interface
7
Power supply wiring (sheathed cable) (230 V)
8
Transmission wiring (sheathed cable) (16 V)
Power supply 3N~ 50 Hz
Power supply 1~ 50 Hz
Earth wiring
12.4. Opening and closing the electrical component box
1
Electrical component box cover
2
Front side
3
Power supply terminal block
4
Sealing material
5
Moisture and dirt could enter
X
Not allowed
O
Allowed
12.5. Requirements
The power supply must be protected with the required safety devices,
i.e. a main switch, a slow blow fuse on each phase and an earth
leakage protector in accordance with the applicable legislation.
Selection and sizing of the wiring should be done in accordance with
the applicable legislation based on the information mentioned in the
table below.
If the total transmission wiring exceeds these limits, it may result in
communication error.
CAUTION
Do not apply excessive force when opening the
electronic component box cover. Excessive force can
deform the cover, resulting in entering of water to
cause equipment failure.
When closing the electrical component box cover,
make sure that the sealing material on the lower back
side of the cover is not caught and bend towards the
inside.
1
2
4
4
4
3
2
7
7
8
8
3
6
6
6
8
5
5
5
1
8
8
8
8
8
R(X/Y)(Y/M)Q14~20
R(X/Y)(Y/M)Q8~12
6x
2x
1
2
3
4
5
Minimum circuit
ampere
Recommended
fuses
RYYQ8+RYMQ8+RXYQ8
16.1 A
20 A
RXYQ10
22.0 A
25 A
RXYQ12
24.0 A
32 A
RXYQ14
27.0 A
32 A
RXYQ16
31.0 A
40 A
RXYQ18
35.0 A
40 A
RXYQ20
39.0 A
50 A
RXYQ22
46.0 A
63 A
RXYQ24
46.0 A
63 A
RXYQ26
51.0 A
63 A
RXYQ28
55.0 A
63 A
RXYQ30
59.0 A
80 A
RXYQ32
62.0 A
80 A
RXYQ34
66.0 A
80 A
RXYQ36
70.0 A
80 A
RXYQ38
76.0 A
100 A
RXYQ40
81.0 A
100 A
RXYQ42
84.0 A
100 A
RXYQ44
86.0 A
100 A
RXYQ46
89.0 A
100 A
RXYQ48
93.0 A
125 A
RXYQ50
97.0 A
125 A
RXYQ52
101.0 A
125 A
RXYQ54
105.0 A
125 A
For all models:
Phase and frequency: 3N~ 50 Hz
Voltage: 380-415 V
Transmission line section: 0.75~1.25 mm
2
, maximum length is 1000 m.
INFORMATION
Multi units are standard combinations.
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