Electrical Data Notes - Carrier 30RBM 160 Installation, Operation And Maintenance Instructions

5.9 - Electrical data notes

Electrical data for 30RBM/30RBP units:
• 30RBM/30RBP units have a single power connection point located immediately
upstream of the main switch.
• Control box includes:
Main disconnect switch,
-
Start-up and motor protection devices for each compressor, fans and pumps,
-
Control devices.
-
• Field connections:
All connections to the system and the electrical installations must be in accordance
with all applicable codes.
• 30RBM/30RBP units are designed and built to ensure conformance with these
codes. 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.
Notes
• Generally the recommendations of IEC 60364 are accepted as compliance with
the requirements of the installation regulation.
• Conformance with EN 60204-1 is the best means of ensuring compliance (§1.5.1)
with the Machinery Directive.
Annex B of standard EN 60204-1 specifies the electrical features used for the
operation of the units.
• Operating conditions of 30RBM/30RBP units are described below:
1. Physical environment*
The classification of environment is specified in standard EN 60364:
Outdoor installation*,
-
Ambient temperature range: minimum temperature -20°C to +48°C**,
-
Altitude: AC1 of 2000 m or less (for the hydronic module, see the paragraph
-
"Electrical data for the hydronic module"),
Presence of hard solid: Class AE3 (no significant dust present)*,
-
Presence of corrosive and polluting substances, class AF1 (negligible),
-
Competence of persons: BA4 (Persons wise).
-
2. Compatibility for low-frequency conducted disturbances according to class 2
levels per IEC61000-2-4 standard:
Power supply frequency variation: +- 2Hz
-
Phase imbalance : 2%
-
Total Voltage Harmonic Distortion (THDV): 8%
-
3. The neutral (N) line 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).
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6 The units are designed for connection to TN networks (IEC 60364). In IT networks,
if noise filters are integrated into the variable frequency drive(s), this will render
the units unsuitable for their intended purpose. In addition, the equipment
characteristics in case of insulation failure are modified. Provide a local earth;
consult competent local organisations to complete the electrical installation.
"30RBM/30RBP units are designed to use for domestic / residential and industrial
environments:
Units that are not equipped with variable frequency drive(s) are in accordance
with the standards codes.
- 61000-6-3: General standards - Standard emission for residential, commercial
and light industry,
- 61000-6-2: General standards - Immunity for industrial environments
Units equipped with variable frequency drive(s) (RBP, options: 28, 116V, 116W)
are in accordance with standard EN61800 - 3 electric power variable speed drives
- 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, to 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 type and/or a control value not
lower than 150 mA are recommended when selecting differential protection
devices.
• Capacitors integrated as part of option 231 can generate electrical
disturbances in the installation the unit is connected to. The 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 Carrier representative.
* The required protection level for this class is IP43BW (according to reference
document IEC 60529). All 30RQM/30RQP units are IP44CW and fulfil this
protection condition.
** The maximum allowable ambient temperature for units equipped with the Power
factor correction option is +40°C
*** - Example of installations of the first environment: Commercial and residential
buildings.
- Example of installations of the second environment: industrial zones, technical
rooms powered from a dedicated transformer.