Glycol/GLYCOOL Cooled Models

5.4.1Expansion Tanks, Fluid Relief Valves and Other Devices

An expansion tank must be provided for expansion and contraction of the fluid due to temperature change in this closed system. Vents are required at system high points to vent trapped air when fill- ing the system. A relief valve is a also a necessary piping component.

Depending on the complexity of the system, various other devices may be specified. Pressure gauges, flow switches, automatic air separator, tempering valves, standby pumps, sensors for electrical con- trols, and flow switches are just a few of these devices.

! CAUTION

Immediately following the use of water for leak testing or system cleaning, charge the tested system with the proper percentage of glycol and water for your coldest design ambient. Complete system drain-down cannot be assured and damage to the system could result from freezing of residual water.

5.5Filling Instructions

5.5.1 Preparing the System for Filling

It is important to remove any dirt, oil or metal filings that may contaminate the cooling system piping in order to prevent contamination of the fresh glycol solution and fouling of the drycooler piping. The system should be flushed thoroughly using a mild cleaning solution or high-quality water and then completely drained before charging with glycol. Cleaning new systems is just as important as clean- ing old ones. New systems can be coated with oil or a protective film; dirt and scale are also common. Any residual contaminants could adversely affect the heat transfer stability and performance of your system. In many cases, in both old and new systems, special cleaners are needed to remove scale, rust and hydrocarbon foulants from pipes, manifolds and passages. Clean heat transfer surfaces are important in maintaining the integrity of the heating/cooling system. For more information on clean- ers and degreasers, contact your sales representative. Follow the manufacturer's instructions when using these products.

Calculate the internal volume of the system as closely as possible. See Table 14 and Table 16 for unit volumes. Use volume in Table 15 for glycol piping volumes.

Table 14

Indoor unit glycol volume approximate gallons (liters) max.

Model (50 Hz)

 

Glycol Cooled

GLYCOOL

 

 

 

 

 

 

 

 

 

 

046WG/(045WG)

 

 

1.2 (4.5)

 

 

 

 

 

 

 

 

 

 

 

 

071WG/(070WG)

 

 

2.0 (7.5)

 

 

 

 

 

 

 

 

 

 

 

 

061G/(058G)

 

 

 

 

4.0 (15.1)

 

 

 

 

 

 

 

 

Table 15 Volume in standard Type “L” copper piping

 

 

 

 

 

 

Diameter (in.)

 

Volume

 

 

 

 

 

 

 

 

Outside

 

Inside

 

Gal/Ft

 

L/M

 

 

 

 

 

 

 

 

 

 

1/2

 

 

0.123

 

0.008

 

0.01

 

 

 

 

 

 

 

 

 

 

5/8

 

 

0.555

 

0.012

 

0.15

 

 

 

 

 

 

 

 

 

 

3/4

 

 

0.666

 

0.018

 

0.22

 

 

 

 

 

 

 

 

 

 

7/8

 

 

0.785

 

0.025

 

0.31

 

 

 

 

 

 

 

 

 

 

1-1/8

 

 

1.025

 

0.043

 

0.53

 

 

 

 

 

 

 

 

 

 

 

32

Page 37 Page 39
Page 38
Image 38
Liebert 3000 installation manual Filling Instructions, Expansion Tanks, Fluid Relief Valves and Other Devices
Page 37 Page 39

3000 specifications

The Liebert 3000 is a cutting-edge power protection solution designed to provide reliable and efficient backup power for critical applications. This uninterruptible power supply (UPS) system is engineered to safeguard sensitive electronic equipment from power disturbances, ensuring uninterrupted operations in data centers, telecommunications, and industrial environments.

One of the standout features of the Liebert 3000 is its high-efficiency design. With an efficiency rating of up to 94%, the system minimizes energy loss, resulting in lower operational costs and a reduced carbon footprint. This is particularly important in today's environmentally conscious climate, as organizations strive to meet sustainability goals while maintaining top-tier performance.

The Liebert 3000 employs advanced technologies to enhance its functionality. It incorporates online double-conversion technology, which provides a continuous supply of clean and regulated power. This technology ensures that connected loads receive stable voltage and frequency, shielding them from voltage spikes, sags, and outages. Additionally, the UPS offers features such as automatic battery testing, which helps ensure peak battery performance and reliability.

Another key characteristic of the Liebert 3000 is its modular design, allowing for flexible scalability. This means that organizations can easily expand the capacity of their UPS system as their power needs grow, without the need for extensive system overhauls. The modular architecture also facilitates simplified maintenance and reduces downtime, as individual modules can be serviced without interrupting power to the critical load.

The system is equipped with comprehensive monitoring and management capabilities. The Liebert 3000 provides real-time data on power usage, battery status, and system performance, enabling facility managers to make informed decisions and proactively address potential issues. The integration of remote management tools allows for seamless monitoring from anywhere, providing peace of mind for operators.

Overall, the Liebert 3000 combines high efficiency, advanced technology, and flexible design to deliver a robust power protection solution. Its reliability and performance make it a preferred choice for organizations seeking to protect their critical infrastructure while enhancing operational efficiency and sustainability. As businesses continue to rely on technology for their everyday operations, the Liebert 3000 stands out as a dependable safeguard against the uncertainties of power quality.
Top Page Image Contents