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Operation
Operator Responsibilities
It is important that the operator become familiar with the equipment and the system before attempting to operate the
chiller. In addition to reading this manual, the operator should study operation manual OM CentrifMicro II (latest
edition) and the control diagram furnished with the unit before starting, operating, or shutting it down.
During the initial startup of the chiller the Daikin technician will be available to answer any questions and instruct in the
proper operating procedures.
It is recommended that the operator maintain an operating log for each individual chiller unit. In addition, a separate
maintenance log should be kept of the periodic maintenance and servicing activities.
This Daikin centrifugal chiller represents a substantial investment and deserves the attention and care normally given to
keep this equipment in good working order. If the operator encounters abnormal or unusual operating conditions, it is
recommended that a Daikin service technician be consulted.
Daikin conducts training for centrifugal operators at its factory Training Center in Staunton, Virginia, several times a
year. These sessions are structured to provide basic classroom instruction and include hands-on operating and
troubleshooting exercises. For further information, contact your Daikin representative.
Standby Power
It is essential that any centrifugal chiller connected to standby power come to a complete stop on grid power and then
be restarted with the standby power. Attempting to switch from regular grid line power to auxiliary power while the
compressor is running can result in extreme transient torque that will severely damage the compressor.
MicroTech II
Control
All chillers are equipped with the Daikin MicroTech II control system consisting of:
•
Operator toucDHSCreen interface panel (shown at the left). It consists of a 12-inch Super VGA color screen
and a floppy drive. See Figure 16.
•
Unit Control Panel containing the MicroTech II unit controller and miscellaneous switches and field
connection terminals.
•
Compressor Control Panel for each compressor containing the MicroTech II compressor controller and lube
system control components.
Figure 16, MicroTech II Control Panel
NOTE
: Detailed information on the operation of the MicroTech II control is contained in the
OM CentrifMicro
II
operating manual.