8 - 18 kVA Start-Up Checklist

1.Open (turn OFF) UPS Output Circuit Breaker.

2.Open (turn OFF) customer supplied distribution circuit breakers.

3.Turn OFF critical loads and plug them into output distribution units or customer-supplied distribution.

4.Turn ON battery circuit breaker on rear of UPS.

5.Roll unit to final position. If using flexible conduit for power connections, allow at least 18 inches of clearance around the UPS with enough conduit to roll UPS 3 feet from wall. If using rigid conduit, allow at least 3 feet of clearance around the UPS. Adjust leveling feet.

6.Close (turn ON) customer-supplied circuit breaker that supplies power to the UPS.

7.Close (turn ON) the UPS Input circuit breaker to supply power to UPS control circuits. The fans and LCD display activate.

8.The LCD display prompts you to review and accept default settings or configure the UPS for your application. See page 11 for default settings.

9.After configuration, automatic self-tests begin. If self- tests are OK, a horn sounds and the ”Close Breaker then Press ON” message appears. If any other message appears, contact Liebert at 1-800-222-5877.

10.Close (turn ON) Output circuit breaker on back of UPS and press the ON button.

11.The UPS tests the inverter and displays the Normal Operation message.

12.Close (turn ON) customer-supplied distribution circuit breakers.

13.Turn on each critical load one at a time. The UPS provides filtered, regulated power to protect valuable processes and data.

8-18kVA Single Line Diagram

AUTO / MANUAL BYPASS

 

 

N

 

 

SURGE

 

 

SUPPRESSION

 

 

AND EMI

 

 

FILTER

L1, L2

 

FRONT END CONVERTER

L1, L2

INVERTER

L1, L2

 

 

 

 

 

EMI

 

N

FILTER

L3 (OPT)

N

INVERTER

 

 

 

 

AUTO / MANUAL

G

 

BYPASS

 

 

BATTERY

 

G

CHARGER

 

 

BATTERY

 

 

 

 

DC

10

Page 10
Image 10
Liebert VM12000, VM18000 user manual 18kVA Single Line Diagram, KVA Start-Up Checklist

VM18000, VM12000 specifications

The Liebert VM12000 and VM18000 are advanced precision cooling systems designed to provide reliable temperature and humidity control in critical environments such as data centers, telecommunications facilities, and industrial applications. These systems are engineered to meet the diverse needs of modern infrastructures that demand optimal performance, energy efficiency, and robust reliability.

One of the key features of the Liebert VM series is its high cooling capacity. The VM12000 offers a cooling capacity of 12,000 BTU/h, while the VM18000 provides an impressive 18,000 BTU/h. This makes both models ideal for environments where heat load is significant, ensuring that critical equipment remains within operational limits. The systems employ variable speed technology, allowing them to dynamically adjust cooling output based on real-time conditions, which enhances energy efficiency and performance.

The Liebert VM series is equipped with advanced control systems, including microprocessor controls that enable precise monitoring and adjustments. Users can easily access real-time data through intuitive interfaces, allowing for seamless management of cooling settings. Additionally, the systems can be integrated into building management systems (BMS), offering centralized control that enhances operational efficiency.

Another notable characteristic of the VM series is its modular design. This allows for easy scalability, making it suitable for both small setups and large, complex installations. The flexibility offered by the modular design permits the addition of cooling units as cooling demands grow, ensuring that users can keep pace with their evolving requirements.

In terms of energy efficiency, the Liebert VM12000 and VM18000 meet and exceed the efficiency standards set by the industry. The systems utilize R-410A refrigerant, which is environmentally friendly and contributes to higher energy performance. This focus on sustainability not only reduces the carbon footprint but also lowers operating costs, providing significant savings over time.

Furthermore, the Liebert VM series is built with robust components designed for durability and longevity. The systems are engineered for high performance in demanding conditions, ensuring reliability even in the most challenging environments.

Overall, the Liebert VM12000 and VM18000 precision cooling units stand out for their high capacity, energy efficiency, advanced controls, and modularity. These features make them a top choice for businesses needing reliable cooling solutions to protect their critical infrastructure while also promoting energy sustainability.