Carrier AquaSnap Touch Pilot Junior Series - Page 29

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Electrical data and operating conditions notes:
• 30RQS/RQSY 039-160 units have a single power connection point located
immediately upstream of the eld power connections.
• The control box includes the following standard features:
- Starter and motor protection devices for each compressor, the fans and the
pump,
- The control devices.
- A main disconnect switch can be installed within the box with the option 70.
• Field connections:
All connections to the system and the electrical installations must be in full
accordance with all applicable local codes.
• The Carrier 30RQS/RQSY 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
equipment
(1)
.
• An auxiliary contactor is available with the QF breaker allowing a safety channel
installation to ensure a feedback output about heater and board power supply status
and then prevent evaporator from frosting when heaters and boards are off.
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 30RQS/RQSY units is specied below:
1. Environment
(2)
- Environment as classied in EN 60721 (corresponds to IEC
60721):
- outdoor installation
(2)
- ambient temperature range: -20°C to +48°C, class 4K4H
- altitude: ≤ 2000 m (see note for table 9.2 - Electrical data, hydraulic module)
- presence of hard solids, class 4S2 (no signi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
(option 70) is 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).
For IT networks provide a local earth and consult competent local organisations
to complete the electrical installation. Units delivered with speed drive
(options 28 and 116V/W) are not compatible with IT network.
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.
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 absence of main power disconnect switch on standard machines is an exception
that must be taken in account at eld installation level.
(2) The required protection level for this class is IP43BW (according to reference
document IEC 60529). All 30RQS/RQSY units
full this protection condition:
- Closed electrical box is IP44CW
- Open electrical box (when accessing to interface) is IPxxB
9 - ELECTRICAL DATA, 30RQS AND 30RQSY UNITS