Technical data

9
NOTES:
• 30GH/GZ 009-035 units have a single power connection
point.
• A separate power source (230 V, 1 ph, 50 Hz) that does
not exceed the main switch capacity is required to power
the compressor crankcase heater circuit. This source must
be supplied from a transformer. It must not be supplied
from a phase + neutral supply (for ground + neutral
systems).
• The control box includes the following standard features:
- Starter and motor protection devices for each
compressor and the fan(s)
- Control devices
• Field connections:
All connections to the system and the electrical
installations must be in full accordance with all
applicable codes.
• The Carrier 30GH/GZ 009-035 chillers are designed and
built to ensure conformance with local codes. The
recommendations of European standard EN 60 204-1
(machine safety - electrical machine components - part 1:
general regulations) are specifically taken into account,
when designing the electrical equipment.
• Conformance with EN 60 204 is the best means of
ensuring compliance with the Machines Directive and
§1.5.1. Generally the recommendations of IEC 364 are
accepted as compliance with the requirements of the
installation directives.
• Annex B of EN 60204-1 describes the electrical
characteristics used for the operation of the machines.
1. The operating environment for the 30GH/GZ 009-035
chillers is specified below:
• Environment* - Environment as classified in IEC 60 721:
- outdoor installation*
- ambient temperature range: -18°C to +46°C, class 4K4H*
- altitude: ≤ 2000 m*
- presence of hard solids, class 4S2 (no significant dust
present)
- presence of corrosive and polluting substances, class
4C2 (negligible)
- vibration and shock, class 4M2
• Competence of personnel, class BA4* (trained personnel -
IEC 364)
* The protection level required to conform to this class is
IP43BW (according to reference document IEC 529). All
30GH/GZ 009-035 units are protected to IP44CW and
fulfill this protection condition.
2. Power supply frequency variation: ± 2 Hz.
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 circuit breaker is of type “a” (EN 60
204-1 § 5.3.2).
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.