POWERCIAT LX ST/HE/XE
EN-
24
Electrical data notes and operating conditions for LX units:
• LX 0808 to 3028 units have a single power connection point, while LX 3428 to
4608 units have two connection points.
• The electrics box includes the following standard features:
-
one main disconnect switch per circuit,
-
starter and motor protection devices for each compressor, the fan(s) and the
pump,
-
control devices.
Field connections:
• All connections to the system and the electrical installations must be in full
compliance with all applicable local regulations.
• LX ST/HE/XE units are designed and manufactured to ensure that these regulations
can be observed. The recommendations of European standard EN 60204-1
(corresponds to IEC 60204-1) (machine safety - electrical machine components
- part 1: General regulations) are specifically taken into account, when designing
the electrical equipment.
IMPORTANT:
• Generally, the recommendations of standard IEC 60364 are accepted as
compliance with the requirements of the installation regulations.
• The EN 60204 standard is the best means of ensuring compliance with
point 1.5.1 of the Machinery Directive.
Annex B of EN 60204-1 describes the electrical characteristics used for the
operation of the machines.
1.
Environment* . Environment as classified in EN 60364 (corresponds to
IEC 60364):
-
outdoor installation*;
-
ambient temperature range: from -20 °C to +55 °C**
-
altitude less than or equal to 2000 m (for the hydraulic module, see paragraph 4.7
of the installation, operation and maintenance manual)
-
presence of hard solids, class AE3 (no significant dust present)*;
-
presence of corrosive and polluting substances, class AF1 (negligible);
-
competence of personnel: BA4 (trained personnel); LX ST/HE/XE machines
are not intended to be installed in locations open to the public, including
people with disabilities and children.
2. Compatibility for low-frequency conducted disturbances according to IEC61000-2-2 and
to class 2 levels per IEC61000-2-4 standard:
-
power supply frequency variation : +-2 Hz;
-
phase imbalance: 2 %;
-
voltage total harmonic distortion (THD): 8 %.
3. The neutral wire (N) must not be connected directly to the unit (if necessary,
use a transformer).
4. Overcurrent protection of the power supply conductors is not provided with the
unit.
5. The factory.installed disconnect switch(es)/circuit breaker(s) is (are) of a type
suitable for power interruption in accordance with EN 60947-3 (corresponds
to IEC 60947-3).
6.
The units are designed for simplified connection on TN(s) networks
(IEC 60364). For IT networks provide a local earth and consult competent
local organisations to complete the electrical installation. Units delivered
with one or more variable frequency drives are not compatible with an
IT network. LX machines are designed for use in domestic / residential and
industrial environments:
Machines that are not equipped with variable frequency drive(s) are in
accordance with the codes :
-
61000-6-3: Generic standards - Emission standard for residential,
commercial and light-industrial environments.
-
61000-6-2: Generic standards - Immunity for industrial environments.
Machines that are equipped with variable frequency drive(s) are compliant
with the standard EN61800-3 - Adjustable speed electrical power drive
systems – part 3: EMC requirements and specific test methods for the
following classifications:
-
Use in the first and second environments***.
-
Category C2 applicable in the first environment, on stationary devices
designed to be installed and commissioned by a professional.
Warning: In a residential environment, this product may cause radio interference
in which case additional mitigation measures could be required.
• Leakage currents: if protection by monitoring the leakage currents is necessary
to ensure the safety of the installation, the presence of additional leakage
currents introduced by the use of variable frequency drive(s) in the unit must
be considered. In particular, the reinforced immunity protection types and/or a
control value not lower than 150 mA are recommended when selecting differential
protection devices.
• Capacitors integrated into the Power factor correction option may generate
electrical disturbances on the system to which the unit is connected. Presence
of these capacitors must be considered during the electrical study prior to the
start-up.
NOTE:
If particular aspects of an actual installation do not conform to the conditions
described above, or if there are other conditions which should be considered, always
contact your local CIAT representative.
*
The required protection level for this class is IP43BW (according to reference
document IEC 60529). All LX ST/HE/XE units are protected to IP44CW and
fulfil this protection condition.
**
The maximum ambient temperature allowed for machines equipped with
option 231 is +40°C
4 - PHYSICAL PROPERTIES AND ELECTRICAL DATA FOR LX UNITS
