D-EIMHP01702-23_00EN- 36/72
6.2.1 About electrical compliance (only for EWWT100)
Only EWWT100 shall comply to the following Standards, because its I<75 A.
The equipment complies with:
• EN/IEC 61000‑3‑11 = European/International Technical Standard setting the limits for voltage changes, voltage xxxx with
input current >16 A and ≤75 A per phase.
• EN/IEC 61000 3 12 = European/International Technical Standard setting the limits for harmonic currents produced by
equipment connected to public low-voltage systems with input current >16 A and ≤75 A per phase.
The equipment complies with EN/IEC 61000-3-11 provided that the system impedance is less than or equal to 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 𝐳
𝐬𝐲𝐬
if necessary, that the equipment is connected only to a supply with a system impedance
less than or 𝐳
𝐦𝐚𝐱
equal to 𝐳
𝐦𝐚𝐱
.
Electrical supply
The electrical equipment can operate correctly with the conditions specified below:
Steady state voltage: 0,9 to 1,1 of nominal voltage
0,99 to 1,01 of nominal frequency continuously
0,98 to 1,02 short time
Harmonic distortion not exceeding 10 % of the total r.m.s. voltage between live conductors for
the sum of the 2nd through to the 5
th
harmonic. An additional 2 % of the total r.m.s. voltage
between live conductors for the sum of the 6th through to the 30th harmonic is permissible.
Neither the voltage of the negative sequence component nor the voltage of the zero sequence
component in three-phase supplies exceeding 3 % of the positive sequence component
Supply interrupted or at zero voltage for not more than 3 ms at any random time in the supply
cycle with more than 1 s between successive interruptions.
Voltage dips not exceeding 20% of the peak voltage of the supply for more than one cycle with
more than 1 s between successive dips.
Electric connections
Provide an electrical circuit to connect the unit. It must be connected to the copper cables with an adequate section relativ e to the
plate absorption values and according to the current electrical standards.
Daikin Applied Europe S.p.A. declines all responsibility for an inadequate electrical connection.
The connections to the terminals must be made with copper terminals and cables, otherwise
overheating or corrosion may occur at the connection points with the risk of damaging the unit. The
electrical connection must be carried out by qualified personnel, in compliance with the laws in force.
There is a risk of electric shock.
The power supply to the unit must be set up in such a way that it can be switched on or off independently from that of other system
components and other equipment in general, by means of a general switch.
The electrical connection of the panel must be carried out maintaining the correct sequence of the phases. Refer to the specific wiring
diagram for the unit you have bought. Should the wiring diagram not be on the unit, or should it have been lost, please contact your
manufacturer representative, who will send you a copy. In case of discrepancy between wiring diagram and electrical panel/cables,
please contact the manufacturer representative.
Do not apply torque, tension or weight to the main switch terminals. Power line cables must be
supported by appropriate systems.
To avoid interference, all control wires must be connected separately from the power cables. To do this, use several electrical passage
ducts.
Simultaneous single and three-phase loads and phase unbalance can cause ground losses of up to 150 mA during normal unit
operation. If the unit includes devices that generate higher harmonics, such as an inverter or phase cut, ground losses can increase
to much higher values, about 2 A.
The protections for the power supply system must be designed according to the values mentioned above. A fuse must be present on
each phase and, where provided for by the national laws of the country of installation, a leak detector to earth.
This product complies with EMC (Electromagnetic Compatibility) standards for industrial environments. Therefore, it is not intended
for use in residential areas, e.g. installations where the product is connected to a low voltage public distribution system. Should this
To Next Page
Loading...
