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Total-Energo LLC provides professional repair and maintenance services for INVT HT11 Series Tower Online UPS units. This tower-style UPS series is characterized by high reliability, stable output voltage, and effective protection of mission-critical systems in commercial, industrial, and telecommunications environments. Our specialists perform repairs of any complexity for models with capacities ranging from 1 to 10 kVA, using original components and providing a quality guarantee.
Repair Work Procedure
Repair work is carried out according to the following clear plan:
- Diagnostics — comprehensive inspection of the device, reading event logs, analysis of the condition of the inverter, rectifier, cooling system, and battery pack;
- Preparation of a defect report — identification of detected malfunctions, creation of a list of necessary components and actions;
- Supply of spare parts — ordering original or compatible manufacturer parts if not in stock;
- Cleaning of equipment — removal of dust, cleaning of contacts, control boards, and cooling systems;
- Repair work — replacement of faulty electronic components and fans, testing of the control board, repair or replacement of the battery pack;
- Commissioning — device configuration, testing operation in all modes (online, bypass, standalone), monitoring of output parameters;
- Final testing — simulation of real-world load, verification of UPS stability and efficiency;
- Documentation — signing of the work completion report and provision of a detailed report to the customer.
In cases of complex malfunctions, repairs are performed at the service center of Total-Energo LLC using modern diagnostic equipment.
Battery maintenance
INVT HT11 UPS units are equipped with AGM or GEL batteries. We provide a full range of battery maintenance services:
- Battery testing — measurement of voltage, capacity, internal resistance, and assessment of the physical condition of the batteries;
- Battery replacement — installation of original or recommended equivalents;
- Battery pack upgrade — the option to switch to lithium iron phosphate (LiFePO4) batteries, which offer significant advantages;
Advantages of LiFePO4 over AGM and GEL batteries:
- Longer service life — up to 10–15 years, over 4,000 charge-discharge cycles;
- Higher energy density — compact size and lower weight;
- Improved safety — no risk of leakage or thermal runaway;
- Stable voltage under load;
- Intelligent protection system (BMS), which ensures balancing and control of the battery pack.
Service support
Total-Energo LLC provides a full range of services for the INVT HT11 UPS, including:
- Regular preventive inspections — cleaning, checking contacts, fans, and the control board;
- Testing of operating modes — online, bypass, and standalone;
- Software updates as needed;
- Consultations on operation and optimization of UPS performance;
- Rapid response to emergency situations with priority service.
Signing a service agreement
For corporate clients, we offer the conclusion of a service agreement for the INVT HT11 UPS, which guarantees:
- Regular scheduled visits by the service team;
- Priority troubleshooting in the event of emergencies;
- Provision of spare parts and batteries;
- Preventive maintenance to minimize the risk of failures;
- An individual approach and flexible terms of cooperation.
INVT HT11 Series Tower Online UPS — a reliable and modern solution that requires professional repair and maintenance. Total-Energo LLC ensures the quality, durability, and uninterrupted operation of your uninterruptible power supplies.