HYDROCIATTURBO TMLWT Water chillers Heat pump Electrical data notes for standard units Electrical data notes and operating conditions, HydrociatTURBO TMLWT units • As standard: variable frequency drive(s), this will render the units unsuitable for HYDROCIATTURBO TMLWT 1400 to HYDROCIATTURBO TMLWT2100 unitstheir intended purpose. In addition, the equipment characteristics in have a single power connection point located immediately upstream of the case of insulation failure are modified. main supply disconnect switche. For IT networks, the earth connection must not be at the network HYDROCIATTURBO TMLW 2300 to HYDROCIATTURBO TMLWT4200 units earth. Provide a local earth; consult competent local organisations to have two connection points located immediately upstream of the complete the electrical installation. main supply disconnect switches. 7. Electromagnetic environment: classification of the electromagnetic • Control box includes the following standard features: environment is described in standard EN 61800-3 (corresponds to IEC - Two disconnect switches per circuit: One main supply disconnect 61800-3): switch and one disconnect switch for the supply of the control part, the - Immunity to external interference defined by the second environment*** undervoltage protection circuit and the motor mechanism module, - Interference emission as defined in category C2 - Filtering compressor currrent devices Warning: In a residential environment, this product may cause radio - Anti-short cycle protection devices interference in which case additional mitigation measures could be - Control devices supply by internal transformers. required. • Field connections: The compressor variable frequency drive is a source of perturbations from All connections to the system and the electrical installations must be inthe harmonic currents. An investigation could be necessary to check that accordance with all applicable codes.* the perturbations don't exceed the compatibility limits with the other devices HYDROCIATTURBOTMLWT units are designed and built to ensure connected on the same power supply network. In an electrical installation, • conformance with these codes. The recommendations of European the levels of compatibility to be observed at the internal coupling point (IPC) standard EN 60204-1 (corresponds to IEC 60204-1) (machine safety to which other loads are connected are described in standard IEC 61000-2-4. - electrical machine components - part 1:general regulations) are • Leakage currents: If protection by monitoring the leakage currents specifically taken into account, when designing the electrical is necessary to ensure the safety of the installation, the presence of equipment. additional leakage currents introduced by the use of variable • Generally the recommendations of IEC 60364 are accepted as frequency drive(s) in the compressor must be considered. compliance with the requirements of the installation regulation. In particular, the reinforced immunity protection types and a control • Annex B of standard EN 60204-1specifies the electrical featuresused value not lower than 150 mA are recommended when selecting for the operation of the units. The features below complete the differential protective devices. informations given in this document: NOTE: If particular aspects of an actual installation do not conform to the 1. Physical environment: conditions described above, or if there are other conditions which should The classification of environment is specified in standard EN 60364: be considered, always contact your local Carrier representative. - Indoor installation**, - Ambient temperature range: minimum temperature +5°C to +42°C, * Generally, the recommendations of the standard of International class AA4 Electrotechnical Commission (IEC60364) are identified to meet the - Altitude: AC1 of 2000 m or less, requirements of the installation guidelines. - Presence of water: Class AD2 (possibility of water droplets)** ** The required protection level for this class is IP21B or IPX1B - Presence of hard solid: Class AE2 (no significant dust present)**, (according to reference documentIEC 60529). All HYDROCIATTURBOTM - Presence of corrosive and polluting substances, class AF1 (negligible), LWT units are IP23 and fulfil this protection condition. - Competence of persons: BA4 (Persons wise), *** Example of second environnement installations: Industrial areas, - Overvoltage category: II (2,5KV). technical facilities supplied by a dedicated transformer 2. Compatibility for low-frequency conducted disturbances according to class 2 levels per IEC61000-2-4 standard: - Power supply frequency variation: +- 2Hz - Phase imbalance : 2% 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) 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). In IT networks,if noise filters are integrated into the compressor(s) CATALOGUE 2021 567 567