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ELECTRICAL AND CONTROL SETTINGS
4.3
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 indoor 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 EN 57).
Power
Model
supply
~ 230V
50Hz
HWM-
WE
3N~
400V
50Hz
NOTE
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 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).
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).
4.4
Transmission wiring between outdoor and
indoor unit
• The transmission is wired to terminals 1-2.
• The H-LINK II wiring system requires only two
transmission cables that connect the indoor unit and
the outdoor unit.
EN
PMML0599 rev.0 - 04/2022
Operation mode
current
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW
tank heaters
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW
tank heaters
Max
Power
Transmitting
supply
cables
(A)
cables
2 x 0.75 mm
2
1.5
+ GND
2 x 6.0 mm
+
2
28
GND
2 x 4.0 mm
+
2
15
GND
2 x 10.0 mm
2
41
+ GND
2 x
0.75 mm
4 x 0.75 mm
2
1.5
+ GND
4 x 2.5 mm
+
2
10
GND
4 x 2.5 mm
+
2
15
GND
4 x 6.0 mm
+
2
23
GND
1
1
• Use twist pair wires (0.75 mm
between outdoor unit and indoor unit. The wiring
must consist of 2-core wires (Do not use wire with
more than 3 cores).
• Use shielded wires for intermediate wiring to protect
the units from noise interference, with a length of less
than 300 m and a size in compliance with local codes.
• In the event that a conduit tube for field-wiring is not
used, fix rubber bushes to the panel with adhesive.
!
CAUTION
Ensure that the transmission wiring is not wrongly connected to any
live part that could be damaged the PCB.
ELB
Actuator
CB
(nº of
cables
(A)
poles/A/mA)
5
32
2/40/30
20
50
2/63/30
2 x
0.75 mm
2
2
+ GND
5
15
4/40/30
20
30
Indoor unit
2
Outdoor unit
2
) for operation wiring
2
4
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