Hitachi Utopia RPI-2.5HRG User Manual

1-5
TROUBLESHOOTING
1.1.2 Checking of Electrical Wiring
 Check to ensure that the terminal for power source wiring (terminals “L1” to “L1” and “N” to “N” of
each terminal board: AC220V) and intermediate wiring (Operating Line: terminals “1” to “1” and “2”
to “2” of each terminal board: DC5V) between the indoor unit and the outdoor unit coincide correctly,
as figure below. If not, some component will be damaged.
 Check to ensure that the twist pair cable with shield (
≥0.75mm2) are used for intermediate wiring to
protect noise obstacle at total length of less than 1000m and size complied with local code.
 Check to ensure that the wirings and the breakers are chosen correctly, as shown in Table 1.1.
 All the field wiring and equipment must comply with local codes.
Example for Electrical Wiring Connection (Single Type)
Wiring Connection for Single Type
NOTE:
In case of the other wiring connection, refer to Technical Catalogue II.
Table 1.1 Electrical Data and Recommended Wiring, Breaker Size/1 Outdoor Unit
NOTE:
Regarding the wiring or breakers, follow to the local code.
L2
N
12 L1 L2
N
Mp
12AB
Outdoor Unit Indoor Unit
Shielded Twist-Pair Cable 0.75m
2
x 2
This cable dose not have any polarity.
Do not apply an excessive voltage to this
cable. (Rated Voltage: 5V)
Control CablePower Source Cable
Pay an attention to the phase
of power source when wiring.
L1
1
220V / 50Hz
240V / 50Hz
220V / 60Hz
1
220V / 50Hz
240V / 50Hz
220V / 60Hz
Remote Control
Switch Cable
(Field-Supplied)
Shielded Twist-Pair Cable
0.75m
2
x 2
This cable dose not have
any polarity.
Do not apply an excessive
voltage to this cable.
(Rated Voltage: 12V)
Remote
Control Switch
(Option)
Earth
Wiring
Earth
Wiring
ELB ELB
Main Switch Main Switch
*ELB *ELB
L2
N
12 L1 L2
N
Mp
12AB
Outdoor Unit Indoor Unit
Shielded Twist-Pair Cable 0.75m
2
x 2
This cable dose not have any polarity.
Do not apply an excessive voltage to this
cable. (Rated Voltage: 5V)
Control CablePower Source Cable
Pay an attention to the phase
of power source when wiring.
L1
1
220V / 50Hz
240V / 50Hz
220V / 60Hz
1
220V / 50Hz
240V / 50Hz
220V / 60Hz
Remote Control
Switch Cable
(Field-Supplied)
Shielded Twist-Pair Cable
0.75m
2
x 2
This cable dose not have
any polarity.
Do not apply an excessive
voltage to this cable.
(Rated Voltage: 12V)
Remote
Control Switch
(Option)
Earth
Wiring
Earth
Wiring
ELB ELB
Main Switch Main Switch
*ELB *ELB
E
RAS-3HVRG
RAS-4HVRG
RAS-5HVRG
Nominal
Current
Nominal
Sensitive
Current
(A) (φmm)
(A) (mA) (A)
RAS-3HVRG 22 40
RAS-4HVRG 23 40
RAS-5HVRG 31 MLFC 2SQ 50 50
ELB: Earthleakage Breaker: Apply low sensibility type.
MLFC: Flame Retardant Polyflex Wire
220-240V/50Hz,
220V/60Hz
30
MLFC 1.25SQ 40
Model
Power
Supply
ELB
Fuse
Power
Supply
Line
Max.
Running
Current

Hitachi Utopia RPI-2.5HRG Specifications

General

Brand	Hitachi
Model	Utopia RPI-2.5HRG
Category	Air Conditioner
Language	English