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Total-Energo LLC offers specialized services for repairing Legrand DAKER DK Plus uninterruptible power supplies—single-phase online double-conversion UPSs designed to protect critical loads: servers, telecommunications and medical equipment, and security systems. We service models with capacities ranging from 1 to 10 kVA in Tower or Tower/Rack configurations (swappable form factor), including those with external battery modules for extended runtime.
Total-Energo LLC performs repairs of any complexity, including those beyond the warranty period. We perform restoration of inverter modules, logic boards, displays, and communication boards, as well as modernization and replacement of the battery pack in accordance with the load and requirements of the facility.
Repair Work Procedure
- Diagnostics — inspection of the control board, inverter, rectifier, bypass, fans, temperature sensors, and communication interfaces;
- Battery condition analysis — measurement of voltage and capacity of each cell, checking the balance between sections, number of cycles;
- Fault report preparation — preparation of a technical report on malfunctions and approval of the repair budget;
- Spare parts supply — original Legrand components: power boards, controllers, displays, SNMP boards, ventilation units, etc.;
- Preventive maintenance — cleaning the interior of dust, replacing thermal pads, checking fasteners, updating firmware;
- Repair — restoring the functionality of all components in accordance with the manufacturer’s standards;
- Commissioning — verification of operating modes (mains, battery, bypass), switching speed testing;
- Final load testing — simulation of emergency situations, monitoring of output voltage stability;
- Preparation of a work completion report — detailed report, technical conclusion, operating recommendations.
In the event of a complex restoration or the need for a test bench, repairs are performed at the service center of Total-Energo LLC.
Replacement and modernization of batteries
The Legrand DAKER DK Plus series features a replaceable battery module, which allows:
- To replace standard-type batteries (AGM or GEL) when capacity decreases or the battery’s service life is exhausted;
- Upgrade the system to LiFePO4 batteries with the following advantages:
- Service life of over 10 years / 6,000+ cycles;
- Increased resistance to temperature fluctuations and deep discharges;
- Lighter weight for the same capacity, lower heat generation;
- BMS protection and remote monitoring.
- Extended runtime — battery pack selection tailored to the customer’s specific load;
- Integration of external battery cabinets with automatic switching and temperature control.
DAKER DK Plus service support
- Scheduled maintenance according to Legrand regulations;
- Emergency response — on-site visits throughout Ukraine within 24–48 hours;
- Monitoring configuration via SNMP, MODBUS, connection to a local network, or SCADA;
- Regular technical audit — condition of components, batteries, temperatures, and load;
- Service history tracking — recording repairs, updates, and actions taken by facility personnel.
Service contract
Total-Energo LLC enters into contracts for long-term maintenance of Legrand DAKER DK Plus UPS units with fixed terms:
- Scheduled inspections — 1–4 times a year depending on the facility’s workload and importance;
- Stockpiling of critical components at our warehouse for specific models;
- Technical consultation regarding connection, modernization, and monitoring;
- Operational support in case of errors or critical failures;
- Detailed reporting for audits, IT departments, certification, or modernization planning.
Legrand DAKER DK Plus — a reliable solution for uninterrupted power supply to office, IT, and telecom equipment. Total-Energo LLC provides repair, upgrades, and full technical support to ensure the uninterrupted operation of your systems.