Comments On Electrical Data - Carrier Aquasnap 30RB Series Installation, Operation And Maintenance Instructions

5 - PHYSICAL AND ELECTRICAL DATA FOR THE UNITS
5.7 - Comments on electrical data notes
• AquaSnap 30RB/30RQ units have a single power connection point located
immediately upstream of the main disconnect switch.
• Control box includes:
- A main disconnect switch,
- The start-up and motor protection devices for each compressor, the fans and
the pumps,
- The control devices.
• Field connections:
All connections to the system and the electrical installations must be in accordance
with all applicable codes.
• The AquaSnap 30RB/30RQ units are designed and built to ensure compliance
with these regulations. The recommendations of European standard EN 60204-
1 (corresponding to IEC 60204-1) (Safety of machinery- Electrical equipment of
machines - part 1: General requirements) 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.
• The operating conditions for AquaSnap 30RB/30RQ units are described below:
1. Environment*
The classification of environment is specified in standard EN 60364:
- Outdoor installation*,
- Ambient temperature range: minimum temperature -20 °C to +46 °C,
- Altitude: AC1 of 2000 m or less (for the hydraulic module, see the paragraph
"Electrical data for the hydraulic module"),
- Presence of solid foreign bodies: Class AE3 (no significant dust present)*,
- Presence of corrosive and polluting substances, class AF1 (negligible),
- Competence of personnel: BA4 (trained personnel).
2. Compatibility for low-frequency conducted disturbances at class 2 levels as
per the IEC 61000-2-4 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).
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 machines unsuitable for their intended purpose. In addition,
the short-circuit holding current characteristics are modified. Provide a local
earth, consult competent local organisations to complete the electrical
installation.
AquaSnap 30RB/30RQ machines are designed for use in domestic / residential
a n d i n d u s t r i a l
Machines that are not equipped with speed regulators or are equipped with
options 282A/B comply with general standards:
- 61000-6-3: General standards - Emission standard for residential, commercial
and light-industrial environments,
- 61000-6-2: General standards - Immunity for industrial environments
Machines equipped with one or several variable frequency drives (options:
6B, 28,12, 16,15LS) comply with the standard:
- 61000-6-4: Emission standard for industrial environments
- 61000-6-2: General standards - Immunity for industrial environments
• Leakage currents: if protection by monitoring the leakage currents is necessary
to ensure the safety of the installation, the presence of a circuit with a DC
component and derived currents introduced by the use of variable frequency
drive(s) on the machine must be taken into account (options: 6B, 28,12, 16,15LS).
In particular, these protections must be:
- able to protect circuits with AC and DC components.
- a reinforced immunity protection type, with an adjustment value of no less than
150 mA
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 AquaSnap 30RB/30RQ units are IP44CW and fulfil
this protection condition.
e n v i r o n m e n t s :
17