Panasonic PAW-DHWM300ZC, Installation Instructions Manual

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12
EN
USE OF ELECTRIC HEATING ELEMENT (only models with electric
heating elements)
The built-in electric heating elements, type SH are designed as backup heating of
water in closed and open type water heaters.
During operation, the heating element and protection tube of the probe should be
sufficiently immersed into water.
Temperature of the electric heater housing should not exceed 80 °C.
The installation should be carried out in compliance with the requirements defined by
the applicable regulations as well as local power supply regulations. The heater may
be connected by an authorised technician only.
Direct the power supply cord through the cable entry to the terminal pin in the electric
heater. Take into account the dimensions of the power supply cord (3x2,5 mm
2
or
5x1,5 mm
2
).
Connect the built-in electric heater to power supply network (in compliance with the
wiring diagram) and take into account the correct voltage values. Before putting into
service check if the wiring of the unit is made in compliance with the wiring diagram.
Electric wiring of the heaters with power of 2 kW or more is factory set to three-phase
voltage of 3~400 V (Figure 1) designed for direct regulation. Electric heaters with
2 kW power can be connected to single-phase voltage of 230 V (Figure 2) or to three-
phase voltage of 400 V (Figure 1), where the star connection should not be
connected to the ground conductor. The bridge connections on the terminal pin
should be made of 1,5 mm
2
copper wire.
1. Rotate the protective cover to the required position by removing the cover, turn it
around and mount it again. The sealing on the housing should not be moved in any
way and be careful not to damage it. Use original screws with washers. Damages
caused by unprofessional installation of the electric heaters will not be covered by the
guarantee.
Figure 1: Three-phase voltage 400 V Figure 2: Single-phase voltage 230 V
(default setting) (max. 3 kW)
WARNING: Do not forget to connect ground conductor!
The water heater must be connected with water inlet and outlet pipes. Other metal
parts of the water heater with which the user may come in contact with and which
may come in contact with water, should have permanent and reliable connection to
ground conductor. Connecting the heater to the electrical circuit must take place in
accordance with the standards for electrical appliances. An all-pole disconnect device
must be installed between the heater and the electrical circuit to comply with the
L1 L2 L3 N PE N L PE