Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 415)

Component Definition and Maintenance 6-71
7000 “C” Frame 7000L-UM300I-EN-P – June 2013
Thermostatic Valve Replacement
Drive must be shut down while replacing the thermostatic valve.
1. Open valve 10 and drain all coolant before replacing the
thermostatic valve.
2. Note three flanges A, B and C on thermostatic valve. If you
cannot see the marks A, B and C on thermostatic valve, you
should mark three flanges. This is very important to put the
thermostatic valve in correct position. The mark C flange will be
in upper direction, and mark B flange will be in the bottom
direction.
3. First unbolt flange A and B. Unbolt flange C, which is in upper
direction, at the end.
To Heat Exchanger
TV1-C
Thermostatic Valve Housing
TV1-B
TV1-A
V10
Figure 6.57 – Thermostatic Valve Replacement