Start-up and Shutdown Procedure

6.2Shutdown Procedure

WARNING

After shutting down the unit, wait at least five minutes before removing any access panels or covers. Access panels should be removed by authorized service personnel only.

After the UPS has been shut down, the unit may still contain high voltages.

TEST BEFORE YOU TOUCH!

Before continuing, read the warnings on the inside front cover of this manual.

This section contains information on how to shut down the UPS from normal operation mode. This procedure applies to units with an APC-supplied Maintenance Bypass Panel.

1.If you have shut the loads down: Move on to step 2.

If the loads are to remain powered: Program the unit into static bypass operation:

a.Press to access the user parameters.

b.Press the or key until the display shows “Bypass operation: OFF”.

c.Press to turn static bypass operation on. The display should show “Bypass operation”.

d.Set the UPS bypass switch to “BYPASS”.

2.Press the red “OFF” button located inside the UPS front door.

3.Set the UPS AC disconnect switch to “OFF”.

4.If the UPS has external batteries:

a.Switch the battery breaker “OFF”.

b.Hold the pre-charge/discharge switch in the “discharge” position until the LED turns off.

5.If the UPS has internal batteries:

a.Open the DC fuse holder and remove the DC fuses (F001, F002, F003). Store the fuses in a safe place.

b.Open the UPS front door and press the green “ON” button to discharge the capacitors.

To restart the unit, see the section “Start-up from Maintenance Bypass” above.

6.(Optional) If the loads are not to be powered, turn off all AC power sources to the UPS and Maintenance Bypass Panel.

990-1378

Installation Guide APC BC300 Series 10kW 208/450/480V UPS

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APC 990-1378 manual Shutdown Procedure, If you have shut the loads down Move on to step

990-1378 specifications

The APC 990-1378 is a high-performance power supply designed for environments where reliability and efficiency are paramount. As a part of APC's range of power protection solutions, this unit is specifically engineered to safeguard critical electronic devices and maintain consistent power delivery even under demanding conditions.

One of the main features of the APC 990-1378 is its robust battery backup system. This ensures that connected devices remain operational during power outages, providing peace of mind for businesses and individuals relying on constant power supply for applications such as networking, telecommunications, and computer systems. The unit is equipped with advanced battery management technology that extends battery life while optimizing energy consumption.

In terms of technologies, the APC 990-1378 incorporates sine wave output, which delivers clean and stable power suitable for sensitive electronic equipment. This feature is essential for preventing equipment damage caused by power surges or fluctuations. Moreover, the power supply comes with multiple outlets, allowing users to connect several devices simultaneously without compromising performance.

Another characteristic that sets the APC 990-1378 apart is its intelligent LCD display. This user-friendly interface provides real-time information on power consumption, battery status, and system health, allowing users to monitor performance easily. The display also features customizable settings, giving users the flexibility to adapt the unit to their specific needs.

The build quality of the APC 990-1378 is impressive, designed to endure both indoor and outdoor environments. Its rugged casing and efficient cooling system guarantee reliable operation in various conditions, making it suitable for different applications, from home offices to enterprise data centers. Additionally, the compact design of this power supply saves valuable space, an essential consideration for users with limited installation areas.

The APC 990-1378 is also compatible with various management software solutions that facilitate remote monitoring and control. This capability is particularly beneficial for IT administrators who need to manage multiple units across different locations efficiently.

In summary, the APC 990-1378 is a versatile and reliable power supply that prioritizes performance, safety, and user convenience. Its advanced features and technologies make it a valuable asset for anyone seeking reliable power protection solutions in today's increasingly tech-driven world.