12
Installation, operation and maintenance instructions - VMGFE102
•
The operating environment for the AR05 units is specifi ed below:
1.
Environment* - Environment as classifi ed in EN 60721 (corresponds to IEC 60721):
- outdoor
installation*
-
ambient temperature range: -20°C to +48°C, class 4K4H
-
altitude: ≤ 2000 m
-
presence of hard solids, class 4S2 (no signifi cant dust present)
-
presence of corrosive and polluting substances, class 4C2 (negligible)
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.
Overcurrent protection of the power supply conductors is not provided with the
unit.
5. The factory-installed disconnect switch is of a type suitable for power interruption
in accordance with EN 60947.
6. The units are designed for connection to TN networks (IEC 60364). For IT networks
the earth connection must not be at the network earth. Provide a local earth,
consult competent local organisations to complete the electrical installation.
Caution: 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 Danfoss representative.
*
The required protection level for this class is IP43BW (according to reference
document IEC 60529). All AR05 units are protected to IP44CW and fulfi l this
protection condition.
Electrical data and operating conditions notes:
•
AR05 039-160 units have a single power connection point located immediately
upstream of the main disconnect switch.
•
The control box includes the following standard features:
-
a main disconnect switch,
-
starter and motor protection devices for each compressor, the fans and the
pump,
-
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 AR05 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
specifi cally 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 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.
