D
–EIMAC01603-18_02EN - 19/27
6
ELECTRICAL INSTALLATION
6.1
General specifications
Refer to the specific wiring diagram for the unit you have bougth. 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 discrepance between wiring diagram and electrical panel/cables, please contact the manufacturer
representative.
All electrical connections to the unit must be carried out in compliance with laws and
regulations in force.
All installation, management and maintenance activities must be carried out by qualified
personnel.
There is a risk of electric shock.
This unit includes non-linear loads such as inverters, which have a natural current leakage to earth. If an Earth
Leakage Detector is installed upstream the unit, a type B device with a minimum threshold of 300 mA must be used.
Before any installation and connection works, the unit must be switched off and secured.
Since this unit includes inverters, the intermediate circuit of the capacitors remains
charged with high voltage for a short period of time after being switched off.
Do not operate to the unit before 20 minutes after the unit has been switched off.
Electrical equipment is capable of operating correctly in the intended ambient air temperature. For very hot
environments and for cold environments, additional measures are recommended (contact the manufacturer
representative).
The electrical equipment is capable of operating correctly when the relative humidity does not exceed 50 % at a
maximum temperature of +40 °C. Higher relative humidities are permitted at lower temperatures (for example 90%
at 20 °C).
Harmful effects of occasional condensation shall be avoided by design of the equipment or, where necessary, by
additional measures (contact the manufacturer representative).
This product complies with EMC 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 product need to be connected to a low voltage public distribution system, specific additional measures will have
to be taken to avoid interference with other sensitive equipment.
6.2
Electrical supply
The electrical equipment can operate correctly with the conditions specificed below:
Voltage
Steady state voltage: 0,9 to 1,1 of nominal voltage
Frequency
0,99 to 1,01 of nominal frequency continuosly
0,98 to 1,02 short time
Armonics
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.
Voltage
unbalance
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
Voltage
interruption
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
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.
6.3
Electric connections
Daikin Applied Europe S.p.A. declines all responsibility for an inadequate electrical connection.
Only use copper conductors. Failure to use copper conductors could result in overheating
or corrosion at connection points and could damage the unit.
To avoid interference, all control wires must be connected separately from the power cables. Use different electrical
passage ducts for this purpose.
