Carrier AquaSnap 61WG Series - Page 37

37
4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA
Electrical data notes and operating conditions:
• 30WG units have a single power connection point, located immediately upstream
of the main disconnect switch.
• 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 30WG 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 specically 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 conditions for the units are specied below:
- Environment(1) - Environment as classied in EN 60721 (equivalent to
CEI60721):
- Indoor installation
- Ambient temperature range: +5 °C for the temperature minimum to +40 °C,
class 4K4H
- Humidity range (non-condensing)(1):
- 50% relative humidity at 40 °C
- 90% relative humidity at 20 °C
- Altitude: ≤ 2000 m (see note for table 4.7 in the IOM)
- Indoor installation(1)
- Presence of water: class AD2 (possibility of water droplets)
- Presence of hard solids, class 4S2 (no signicant dust present)
- Presence of corrosive and polluting substances, class 4C2 (negligible)
- Vibration and shock, class AG2, AH2
- Competence of personnel, class BA4(1) (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 simplied connection on TN(s) networks (IEC
60364).
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:
I 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 representative.
(1) The protection level of the control boxes required to conform to this class is IPX1B
(according to reference document IEC 60529). All units full this protection condition.
Units equipped with front casing panel meet class IP23. If the casing panel has
been removed, access to energised components is protected to level IPXXB.