Hitachi YUTAKI M R32 RASM-4VR1E Manual De Instrucciones página 26

ELECTRICAL AND CONTROL SETTINGS
8.2.1 Power and transmission wiring
connection
◆ Safety instructions

NOTE
Check the requirements and recommendations in this chapter
Electrical and control settings".
!
DANGER
• Do not connect the power supply to the unit prior to filling the
space heating circuit (and DHW circuit if it were the case) with
water and checking water pressure and the total absence of
any water leakage.
• Do not connect or adjust any wiring or connections unless the
main power switch is OFF.
• When using more than one power source, check and ensure
that all of them are turned OFF before operating the unit.
• Avoid wiring installation in contact with the refrigerant pipes,
water pipes, edges of plates and electrical components inside
the unit to prevent damage, which may cause electric shock
or short circuit.
8.3 Wiring size and minimum requirements of the protection devices
!
CAUTION
• Check to ensure that the field supplied electrical components (mains power switches, circuit breakers, wires, connectors and wire
terminals) have been properly selected according to the electrical data indicated on this chapter and they comply with national and local
codes. If it is necessary, contact with your local authority in regards to standards, rules, regulations, etc.
• Use a dedicated power circuit for the unit. Do not use a power circuit shared with the outdoor unit or any other appliance..
Use wires which are not lighter than the polychloroprene sheathed flexible cord (code designation 60245 IEC 57).
Model
RASM-(4-6)VR1E
RASM-(4-7)R1E
RASM-(4-6)VRW1E
RASM-(4-7)RW1E

NOTE
Only for RASM-(4-7)(V)R1E: The data corresponding to DHW tank
heater is calculated in combination with the domestic hot water
tank accessory "DHWT-(200/300)S-3.0H2E".
!
CAUTION
• Ensure specifically that there is an Earth Leakage Breaker (ELB)
installed for the units (outdoor 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 unit).
EN
PMML0578 rev.0 - 04/2022
Max
Power
Operation current
supply
(A)
- 29
~ 230 V
50 HzV
With
50Hz 41
DHWT
- 16
3N~ 400V
With
50Hz
29
DHWT
~ 230 V
50 HzV - 29
50Hz
3N~ 400V
- 16
50Hz
!
CAUTION
• Make sure that all wiring and protection devices are properly
selected, connected, identified and fixed to the correspond ing
terminals of the unit, specially the protection (earth) and power
wiring, taking into account the applicable national and local
regulations. Establish proper earthing; Incomplete earthing may
cause electrical shock.
• Protect the unit against the entry of small animals (like rodents)
which could damage the drain pipe and any internal wire or any
"8.
other electrical part, leading to electric shock or short-circuit.
• Keep a distance between each wiring terminal and attach
insulation tape or sleeve as shown in the figure.
Power supply Transmit-
cables ting cables
2 x 6.0 mm + GND
2
2 x 10.0 mm + GND
2
4 x 4.0 mm + GND
2
4 x 6.0 mm + GND
2
0.75 mm
2 x 6.0 mm + GND
2
4 x 4.0 mm + GND
2

NOTE
• 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).
Tape or sleeve
Actuator CB
cables (A)
32
50
20
2 x
2 x
32
0.75 mm
2
2
+ GND
32
20
ELB
(no. of
poles/A/
mA)
2/63/30
2/40/30
4/40/30
2/40/30
4/40/30
10