12
4.2 - Electrical data
30RW/RWA (without hydronic module)
020
025
030
040
045
060
070
080
090
110
120
135
150
160
185
210
245
275
300
Power circuit
Nominal voltage
V-ph-Hz 400-3-50
Voltage range
V
360-440
Control circuit supply
The control circuit is supplied via the unit-mounted transformer
Maximum power input, 30RW and 30RWA*
kW
8.1
10.3 12.0 15.8 18.0 22.3 27.8 31.6 36.1 42.4 48.8 54.0 59.1 63.2 72.2 84.9 97.6 107.9 118.2
Nominal current draw
30RW**
A
9.9
12.6 14.6 17.9 21.1 27.2 32.5 35.8 42.1 48.1 54.0 61.0 68.0 71.7 84.2 96.1 108.0 122.0 136.0
30RWA***
A
10.4 13.3 15.5 19.1 22.4 28.8 34.5 38.1 44.8 51.4 58.0 64.7 71.4 76.3 89.6 102.8 116.0 129.4 142.8
Maximum current draw
30RW and 30RWA****
A
13.7 17.6 20.5 25.9 30.2 38.0 46.3 51.8 60.5 69.2 78.0 87.0 96.0 104
120.9 138.5 156.0 174.0 192.0
Max. start-up current
(standard unit without
electronic starter, 30RW and 30RWA†
A
86.0 130.0 130.0 135.0 155.0 147.6 155.5 160.9 185.2 245.2 254.0 309.0 318.0 212.6 245.7 314.5 332.0 396.0 414.0
Max. start-up current
(unit with optional
electronic starter), 30 RW and 30RWA‡
A
51.6 78.0 78.0 81.0 93.0 95.6 101.5 106.9 123.2 159.2 168.0 201.0 210.0 158.6 183.7 228.5 246.0 288.0 306.0
Holding current for three-phase short
circuits 30RW/RWA
kA
7.5
7.5
7.5
7.5
7.5
10
10
10
10
10
10
10
10
18
18
18
18
18
18
* Power input of the compressor(s) at maximum unit operating conditions: entering/leaving evaporator water temperature = 15°C/10°C, maximum condensing
temperature of 65°C, and 400 V nominal voltage.
** Nominal unit current draw at standard conditions: evaporator entering/leaving water temperature 12°C/7°C, condenser entering/leaving water temperature 30°C/35°C.
The current values are given at 400 V nominal voltage.
*** Nominal unit current draw at standard conditions: evaporator entering/leaving water temperature 12°C/7°C, saturated condensing temperature (dew point) 45°C,
subcooling 5 K. The current values are given at 400 V nominal voltage.
**** Maximum unit operating current at maximum unit power input and 400 V.
† Maximum instantaneous starting current at 400 V nominal voltage and with compressor in across-the-line start (maximum operating current of the smallest
compressor(s) + locked rotor current of the largest compressor).
‡ Maximum instantaneous starting current at 400 V nominal voltage and with compressor with electronic starter (maximum operating current of the smallest
compressor(s) + reduced start-up current of the largest compressor).
Electrical data notes and operating conditions:
• 30RW and 30RWA 020-300 units have a single power connection point.
• The control box includes the following standard features:
- the starter and motor protection devices for each compressor and the pumps
- the control devices
• Field connections:
All connections to the system and the electrical installations must be in full
accordance with all applicable local codes.
• The Carrier 30RW and 30RWA units are designed and built to ensure
conformance with these codes. The recommendations of European standard
EN 60204-1 (machine safety - electrical machine components - part 1: general
regulations - corresponds to IEC 60204-1) are specifically taken into account,
when designing the electrical unit equipment.
NOTES:
• Generally the recommendations of IEC 60364 are accepted as compliance
with the requirements of the installation directives. Conformance with EN
60204-1 is the best means of ensuring compliance with the Machines Directive
§ 1.5.1.
• Annex B of EN 60204-1 describes the electrical characteristics used for the
operation of the machines.
1. The operating environment for the 30RW and 30RWA chillers is specified
below:
Environment* - Environment as classified in IEC 60364 § 3:
- ambient temperature range: +5°C to +40°C, class AA4
- humidity range (non-condensing)*:
- 50% relative humidity at 40°C
- 90% relative humidity at 20°C
- altitude: ≤ 2000 m (see note for table 4.4 - Electrical data, hydronic module)
- indoor installation*
- presence of water: class AD2* (possibility of water droplets)
- presence of hard solids, class AE2* (no significant dust present)
- presence of corrosive and polluting substances, class AF1 (negligible)
- vibration and shock, class AG2, AH2
- competence of personnel, class BA4* (trained personnel - IEC 60364)
2. Power supply frequency variation: ± 2 Hz.
3. The neutral (N) conductor must not be connected directly to the unit (if
necessary use a transformer).
4. Over-current 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.
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.
7. Derived currents: If protection by monitoring of derived currents is necessary to
ensure the safety of the installation, the control of the cut-out value must take the
presence of leak currents into consideration that result from the use of frequency
converters in the unit. A value of at least 150 mA is recommended to control
differential protection devices.
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 protection level of the control boxes required to conform to this class is
IP21B (according to reference document IEC 60529). All 30RW and 30RWA
units with correctly installed casing panels fulfil this protection condition.
