Minimum Requirements Of The Protection Devices - Hitachi YUTAKI Series Installation And Operation Manual
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Also See for YUTAKI Series:
- Service manual (262 pages) ,
- Instruction and operation manual (194 pages) ,
- Instruction manual (32 pages)
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ELECTRICAL AND CONTROL SETTINGS
6.2.2 Minimum requirements of the protection devices
!
C A U T I O N
•
Ensure specifically that there is an Earth Leakage Breaker (ELB) installed for the units (outdoor and indoor unit).
•
If the installation is already equipped with an Earth Leakage Breaker (ELB), ensure that its rated current is large enough to hold the current of the
units (outdoor and indoor unit).
?
N O T E
•
Electric fuses can be used instead of magnetic Circuit Breakers (CB). In that case, select fuses with similar rated values as the CB.
•
The Earth Leakage Breaker (ELB) mentioned on this manual is also commonly known as Residual Current Device (RCD) or Residual Current
Circuit Breaker (RCCB).
•
The Circuit Breakers (CB) are also known as Thermal-Magnetic Circuit Breakers or just Magnetic Circuit Breakers (MCB).
Split system - R410A Outdoor unit
Model
Power supply
RAS-2WHVNP
RAS-2.5WHVNP
RAS-3WHVNP
1~ 230V 50Hz
RAS-4WHVNPE
RAS-5WHVNPE
RAS-6WHVNPE
RAS-4WHNPE
RAS-5WHNPE
RAS-6WHNPE
3N~ 400V 50Hz
RAS-8WHNPE
RAS-10WHNPE
MC: Maximum current; CB: Circuit breaker; ELB: Earth leakage breaker
Split system - R32 Outdoor unit
Model
RAS-2WHVRP
RAS-2.5WHVRP
RAS-3WHVRP
MC: Maximum current; CB: Circuit breaker; ELB: Earth leakage breaker
53
PMML0510 rev.1 - 10/2019
Applicable voltage
U max. (V)
253
440
Applicable voltage
Power supply
U max. (V)
1~ 230V 50Hz
253
MC
(A)
U min. (V)
14
16
18
207
30
30
30
14
14
360
16
24
24
MC
(A)
U min. (V)
10.4
207
12.9
15.8
CB
ELB
(A)
(nº of poles/A/mA)
16
16
20
2/40/30
32
32
32
15
15
20
4/40/30
25
25
CB
ELB
(A)
(nº of poles/A/mA)
16
16
2/40/30
20
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