The Liebert Hipulse D UPS manual provides guidance on maintenance and troubleshooting procedures. The following are some key points:
The Liebert HiPulse D operates in several distinct modes to optimize efficiency and maintain load availability under varying utility conditions. Normal (Online) Mode
The UPS should be installed in a cool, dry, and clean environment with adequate ventilation. The specified operating ambient temperature range is 0 °C to 40 °C without de-rating, and the maximum operating altitude is 1000m above mean sea level (MSL) without de-rating.
Maintain at least 1000mm (39 inches) of front clearance for maintenance access and airflow. Keep rear and top ventilation ports unobstructed.
The Liebert HiPulse D is a heavy-duty, industrial-grade three-phase Uninterruptible Power Supply (UPS) designed by Vertiv (formerly Emerson Network Power). Engineered to safeguard mission-critical infrastructure, this system provides robust power protection for data centers, manufacturing plants, healthcare facilities, and telecommunications hubs.
Clean air filters periodically to prevent overheating.
This system is ideally suited for:
Use the control panel to transfer the load from . Verify the "Bypass Supply" LED is active.
A manual wrap-around breaker isolates the internal electronics of the UPS for safe servicing while keeping the load energized by utility power. 5. Routine Maintenance and Troubleshooting
Close the UPS . The control panel will initialize, and the cooling fans will spin up.
| Parameter | Value | Units | | :--- | :--- | :--- | | | 300 / 400 | kVA | | Voltage Range for Inverter | 320 – 490 | Vdc | | Recommended No. of Lead-Acid Cells | 192 (380Vac) / 198 (400Vac) / 204 (415Vac) | No. | | Recommended Float Charge Voltage | 2.25 | V/el | | Recommended Boost Charge Voltage | 2.40 | V/el | | Recommended End of Discharge Voltage | 1.67 | V/el |
) along with a dedicated protective earth (PE) ground to the main input busbars.
Remove the mechanical padlock or interlock key from the Maintenance Bypass Switch (MBS).
Because the Hipulse D has evolved over years (including the later model), it is critical to use the manual matching your unit’s serial number and firmware version .
