Piping between the drycooler, any external pump and the cooling unit is required to complete the system.
Properly-sized pipes will help reduce pumping power and operating costs. Pipe material choices are typically copper,
plastic or steel/black iron. Consult glycol and pipe manufacturing literature for compatibility and sizing assistance.
Galvanized piping should not be used. Any copper piping installed should be “L” or “K” refrigerant-grade copper.
Drycooler supply and return connections vary in size and number. See Table 5.3 on page 34, and Table 5.4 on page 35.
Consider the following guidelines when planning and performing the piping installation:
•
Follow local piping codes, safety codes.
•
Qualified personnel must install and inspect system piping.
•
Do not hang or suspend piping from the drycooler-tube sheets protruding below the finned sections of the coil.
•
On multiple-pump packages install a check valve at the discharge of each pump to prevent back-flow through
the standby pump(s).
•
To extend the service life of the drycooler and pumps, install 16-20 mesh-screen filters/strainers in the supply
line to the pumps. The filter/strainer(s) should be easily replaced or cleaned.
•
Consider Installing hose bibs at the lowest point of the system to facilitate filling.
•
Keep piping runs as straight as possible, avoid unnecessary bends, and minimize additional fittings.
•
Isolate piping from the building with vibration-isolating supports. Use soft, flexible material to seal between
pipes and wall openings to prevent pipe damage.
•
Use welded or high-temperature soldered joints where possible. Threaded pipe joints, if needed, can be made
with tightly drawn Teflon™ tape.
•
Clean and prepare all pipe connections before joining. Be careful not to allow solder/joining debris to get inside
the lines during the connection process.
Vertiv | Liebert® Drycooler Installer/User Guide
32
Summary of Contents for Liebert Drycooler
Page 1: ...Liebert Air cooled Direct drive Drycooler Installer User Guide 50 Hz and 60 Hz ...
Page 10: ...Vertiv Liebert Drycooler Installer User Guide 6 This page intentionally left blank ...
Page 20: ...Vertiv Liebert Drycooler Installer User Guide 16 This page intentionally left blank ...
Page 24: ...Figure 4 2 Removing Protective Material Vertiv Liebert Drycooler Installer User Guide 20 ...
Page 34: ...Vertiv Liebert Drycooler Installer User Guide 30 This page intentionally left blank ...
Page 54: ...Vertiv Liebert Drycooler Installer User Guide 50 This page intentionally left blank ...
Page 62: ...Vertiv Liebert Drycooler Installer User Guide 58 This page intentionally left blank ...
Page 66: ...Vertiv Liebert Drycooler Installer User Guide 62 This page intentionally left blank ...
Page 68: ...Vertiv Liebert Drycooler Installer User Guide 64 This page intentionally left blank ...
Page 101: ...Vertiv Liebert Drycooler Installer User Guide ...