Panasonic WH-MDC012H6E5 Service Manual page 16

Connecting Requirement
For WH-MDC12H6E5 and WH-MDC16H6E5

This equipment's power supply 1 complies with IEC/EN 61000-3-12 provided that the short circuit power S
greater than or equal to 1100kW at the interface point between the user's supply and the public system. It is the
responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network
operator if necessary, that the equipment is connected only to a supply with a short circuit power S
or equal to 1100kW.

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 61000-3-12.

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
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)

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
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
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
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
of type designation 60245 IEC 57 or heavier.
5 Extra pump cable shall be (2 x min 1.5 mm
6 Boiler contact cable shall be (2 x min 0.5 mm
7 External control shall be connected to 1-pole switch with min 3.0 mm contact gap. Its cable must be (2 x min
2
0.5 mm ), 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
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
sheathed or rubber-sheathed cable.
9 Room sensor zone 1 cable shall be (2 x min 0.3 mm
sheathed.
10 Outdoor air sensor cable shall be (2 x min 0.3 mm
sheathed.
2
), of type designation 60245 IEC 57 or heavier, or similarly double insulation
2
2
), of type designation 60245 IEC 57 or heavier.
2
), of type designation 60245 IEC 57 or heavier.
2
), double insulation layer (with insulation strength of min 30V) of PVC-
Tank Sensor Resistance Vs Temperature
16000
14000
12000
10000
8000
6000
4000
2000
0
-30 -20 -10
Tank sensor characteristic
2
) double insulation layer of PVC-sheathed or rubber-
2
) double insulation layer of PVC-sheathed or rubber-
= 0.193 ohm (Ω) at the interface.
max
), of type designation 60245 IEC 57 or heavier cord, or
.
rms
0 10 20 30
˚C
is
sc
greater than
sc
2
), of type
2
),