Optional Tank and Pump Module
12. This process occurs throughout the operating range of
the chiller system
13. If the primary microprocessor fails, the remaining
modules will continue to operate in response to
demand. Secondary modules in the chiller system,
B–3
each have a "distributed primary" microprocessor that
allows the system to keep operating if the primary
microprocessor fails. The only function the distributed
primary cannot perform, is the automatic rotation of
modules as described in
Step
2..
ARTC-SVX008A-EN