55
Connecting
Requirement
12.1.4.5
For WH-MDC05J3E5
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-2.
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-3 and can be connected to current supply
network.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-2.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-11 and shall be connected to suitable supply
network, with the following maximum permissible system impedance Z
max
= 0.450 ohm (
Ω
) at the interface.
Please liaise with supply authority to ensure that the Power Supply 2 is connected only to a supply of that
impedance or less.
For WH-MDC07J3E5 and WH-MDC09J3E5
This equipment’s Power Supply 1 complies with IEC/EN 61000-3-12.
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-11 and shall be connected to a suitable supply
network, having services current capacity
≥
100A per phase. Please liaise with supply authority that the service
current capacity at the interface point is sufficient for the installation of the equipment.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-2.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-11 and shall be connected to suitable supply
network, with the following maximum permissible system impedance Z
max
= 0.450 ohm (
Ω
) at the interface.
Please liaise with supply authority to ensure that the Power Supply 2 is connected only to a supply of that
impedance or less.
Connecting with external device (optional)
12.1.4.6
All connections shall
follow to the local national wiring standard.
It is strongly recommended to use manufacturer-recommended parts and accessories for installation.
For connection to main PCB
1 Two-way valve shall be spring and electronic type, refer to “Field Supply Accessories” table for details. Valve
cable shall be (3 x min 1.5 mm
2
), of type designation 60245 IEC 57 or heavier, or similarly double insulation
sheathed cable.
* note: - Two-way Valve shall be CE marking compliance component.
- Maximum load for the valve is 9.8VA.
2 Three-way valve shall be spring and electronic type. Valve cable shall be (3 x min 1.5 mm
2
), of type
designation 60245 IEC 57 or heavier, or similarly double insulation sheathed cable.
* note: - Shall be CE marking compliance component.
- It shall be directed to heating mode when it is OFF.
- Maximum load for the valve is 9.8VA.
3 Room thermostat cable must be (4 or 3 x min 0.5 mm
2
), of type designation 60245 IEC 57 or heavier cord, or
similarly double insulation sheathed cable.
4 Maximum output power of booster heater shall be
≤
3 kW. Booster heater cable must be (3 x min 1.5 mm
2
),
of type designation 60245 IEC 57 or heavier.
5 Extra pump cable shall be (2 x min 1.5 mm
2
), of type designation 60245 IEC 57 or heavier.
6 Boiler contact cable shall be (2 x min 0.5 mm
2
), of type designation 60245 IEC 57 or heavier.
7 External control shall be connected to 1-pole switch with min 3.0 mm contact gap. Its cable must be (2 x min
0.5 mm
2
), double insulation layer of PVC-sheathed or rubber-sheathed cable.
* note: - Switch used shall be CE compliance component.
- Maximum operating current shall be less than 3A
rms
.
8 Tank sensor shall be resistance type, please refer to graph below for the characteristic and details of sensor.
Its cable shall be (2 x min 0.3 mm
2
), double insulation layer (with insulation strength of min 30V) of PVC-
sheathed or rubber-sheathed cable.
9 Room sensor zone 1 cable shall be (2 x min 0.3 mm
2
) double insulation layer of PVC-sheathed or rubber-
sheathed.
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