Rockwell Automation 20L PowerFlex 700L Liquid-Cooled Adjustable Frequency AC Drive - Manual (Page 89)

PowerFlex 700L Frames 2, 3A, and 3B Liquid-Cooled AC Drives User Manual
Publication 20L-UM001E-EN-P
Chapter
4
Cooling Loop Installation
Proper liquid cooling is critical to drive operation and reliability. This
chapter provides information about the types of drive cooling loops, drive
coolant requirements, and cooling loop connections for the PowerFlex 700L
Liquid-Cooled drive power structure.
Explanation of Cooling
Loop Types Liquid-to-Liquid Heat Exchanger
The liquid-to-liquid heat exchanger uses a heat transfer plate to transfer heat
from one liquid to another. This method requires a stable water supply from
the user.
Figure 4.1 Drive and Liquid-to-Liquid Heat Exchanger Plumbing Arrangement
Figure 4.2 shows a cooling loop diagram for a typical liquid-to-liquid heat
exchanger.
Topic Page
Explanation of Cooling Loop Types 4-1
Cooling Loop Application Guidelines 4-6
Drive Coolant Connections 4-7
Drive Coolant Requirements 4-10
PowerFlex 700L
Drive
Inlet
Drive
Outlet
Hose Kit
= hose or pipe connection
To Facility Water
To
Drive
Inlet
From
Drive
Outlet
Return
To
Supply
In
From
Supply
Liquid-to-Liquid
Heat Exchanger
Customer
Supplied Piping
Flow
Indicator