Carrier AQUAFORCE 30XW Series Installation, Operation And Maintenance Instructions page 20

4 - PHYSICAL AND ELECTRICAL DATA
Electrical data notes and operating conditions, 30XW units
• As standard:
30XW 254 to 862 units have a single power connection point located immediately
upstream of the main disconnect switch.
30XW 1002 to 1762 units have two connection points located immediately
upstream of the main disconnect switches.
• The control box includes the following standard features:
- One main disconnect switch per circuit
- Starter and motor protection devices for each compressor
- Anti-short cycle protection devices
- Control devices
• Field connections:
All connections to the system and the electrical installations must be in full
accordance with all applicable codes.
• The Carrier 30XW units are designed and built to ensure conformance with local
codes. The recommendations of European standard EN 60204-1 (corresponds
to IEC 60204-1) (machine safety - electrical machine components - part 1: general
regulations) are specifically taken into account, when designing the electrical
equipment.
• The absence of power supply disconnect switch(es) and short-cycle protection
devices in option 82A is an important factor that has to be taken into considera-tion
at the installation site.
Units equipped with one of these two options are supplied with a declaration of
incorporation, as required by the machinery directive.
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.
• Annex B of EN 60204 1 describes the electrical characteristics used for the
operation of the machines.
20
(1)
(1)
1. The operating environment for the 30XW units is specified below:
• Environment Environment as classified in EN 60721 (corresponds to IEC 60721):
(2)
- indoor installation
- ambient temperature range: minimum temperature +5°C to +42°C, class AA4
- altitude: lower than or equal to 2000 m
- presence of water: class AD2 (possibility of water droplets)
- presence of hard solids, class 4S2 (no significant dust present)
- presence of corrosive and polluting substances, class 4C2 (negligible)
- personal skills: BA4 (informed person)
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 disconnect switch(es)/circuit breaker(s) is (are) of a type
suitable for power interruption in accordance with EN 60947-3 (corresponds
to IEC 60947-3).
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.
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.
(1) Not provided for units equipped with option 82A
(2) The required protection level for this class is IP21B or IPX1B (according to
reference standard IEC 60529). All 30XW units fulfil this protection condition.
In general the casings fulfil class IP23 or IPX3B.