Carrier AquaForce PUREtec 30XW-VZE 451 Installation, Operation And Maintenance Instructions

15Electrical data notes and operating conditions, 30XW-VZE / 30XWHVZE units• The unit has one connection point per circuit.• The main switch disconnector and the main short circuit protection are not includedin the electrical cabinet.• Field connections: All connections to the system and the electrical installationsmust be in full accordance with all applicable codes.• The unit is designed and built to ensure conformance with local codes. Therecommendations 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(1) .• The absence of the main disconnect switch is an exception that shall be consideredat the building installation level.• Compliance of the installation to 1999/92/CE directive on minimum requirementsfor improving the safety and health protection of workers potentially at risk fromexplosive atmospheres: The electrical equipment is not designed for complianceto 2014/34/EU directive for equipment and protective systems intended for usein potentially explosive atmospheres. The compliance of the building installationwith article 3 Prevention of and protection against explosions shall be achievedby all necessary measures in the installation for prevention of the formation ofexplosive atmospheres• Annex B of EN 60204 1 describes the electrical characteristics used for theoperation of the machines. The ones described below apply to 30XW-VZE /30XWHVZE units and complement other information in this document:The operating environment for the units is specified below:1. 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)2. Power supply frequency variation: ± 2 Hz.3. The neutral (N) line must not be connected directly to the unit (if necessaryuse a transformer).4. Overcurrent protection of the power supply conductors is not provided withthe unit.5. The unit is designed for connection to TN systems (IEC 60364). For IT systemsthe earth connection must not be at the network earth. Provide a local earth,consult competent local organisations to complete the electrical installation.6. Electromagnetic environment: classification of the electromagnetic environmentis described in standard EN 61800-3 (corresponds to IEC 61800-3):- Immunity to external interference defined by the second environment(3)- Interference emission as defined in category C3*• Due to the harmonic currents the integrated frequency variator in the unit is asource of interference. An analysis may be required to verify if these interferencesexceed the compatibility limits of the other devices connected to the same powersupply network. The compatibility levels inside an electrical installation, that mustbe met at the in-plant coupling point (IPC) to which other loads are connected aredescribed in standard 61000-2-4. Two characteristics are required for this analysis:- The short-circuit ratio (Rsce) of the installation calculated at the in-plant couplingpoint (IPC).- The total harmonic current distortion rate (THDI), calculated for the machine atmaximum capacity.• Derived currents: If protection by monitoring the leakage currents is necessary toensure the safety of the installation, the presence of derived currents introducedby the use of frequency variators in the unit must be considered. In particular thereinforced immunity protection types and a control value not lower than 150 mAare recommended to control differential protection devices.NOTE: If particular aspects of an actual installation do not conform to theconditions described above, or if there are other conditions which should beconsidered, always contact your local Carrier representative.(1) Generally the recommendations of IEC 60364 are accepted as compliance withthe requirements of the installation directives. Conformance with EN 60204-1is the best means of ensuring compliance with the Machinery Directive.(2) The required protection level for this class is IP21B or IPX1B (according toreference document IEC 60529). All 30XW-VZE/30XWHVZE have IP23 unitsfulfil this protection condition.(3) Example of installations of the second environment: industrial zones, technicallocations supplied from a dedicated transformer.* Category C3 is suitable for use in an industrial environment and is not designedfor use in a public low-voltage system that supplies residential locations. As anoption, conformity with category C2 permits this type of installation.4 - PHYSICAL AND ELECTRICAL DATAGreyed text does not apply to units equipped with option 330 (Low GWP A1 R-515B refrigerant)