Carrier AquaSnap 61AF 022 Installation, Operation And Maintenance Instructions page 18

5 - ELECTRICAL DATA
Electrical data and operating conditions notes:
• 61AF 022-105 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 Carrier 61AF 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
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.
• The operating environment for the 61AF units is specified below:
1. Environment - Environment as classified in EN 60721 (corresponds to IEC
(1)
60721):
- outdoor installation
(1)
- ambient temperature range: -20°C to +40°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)
2. Power supply frequency variation: ± 2 Hz.
3. The neutral (N) conductor must not be connected directly tothe unit (if necessary
use a transformer).
4. 4. Overcurrent protection of the power supply conductors is notprovided with
the unit.
5. The factory-installed disconnect switch is of a type suitablefor power interruption
in accordance with EN 60947.
6. The units are designed for connection to TN networks (IEC60364). 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. Units delivered with speed drive (options 116) are not compatible
with IT network.
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 Carrier representative.
(1) The required protection level for this class is IP43BW (according to reference
document IEC 60529). All 61AF units are protected to IP44CW and fulfil this
protection condition.