Power Up Controls And Check Oil Heater; Software Configuration; Input The Design Set Points; Input The Local Occupied Schedule - Carrier AquaEdge 19XR Series Start-Up, Operation And Maintenance Instructions Manual

above unit pressure. Oil should only be charged or removed
when the chiller is shut down.

Power Up Controls and Check Oil Heater

Ensure that an oil level is visible in the compressor and the chiller
is not in a vacuum before energizing the controls. Typically for
19XR2-E a circuit breaker in the starter energizes the oil heater
and the control circuit. For 19XR6/7 oil heater and control circuit
is powered from the control panel.
The oil heater is energized by powering the control circuit. This
should be done several hours before start-up to minimize oil-re-
frigerant migration. The oil heater is controlled by the PIC 6 and is
powered through a contactor in the power panel (19XR2-E) con-
trol panel (19XR6/7). A separate circuit breaker powers the heater,
oil pump, and the control circuit. This arrangement allows the
heater to energize when the main motor circuit breaker is off for
service work or extended shutdowns.

Software Configuration

WARNING
Do not operate the chiller before the control configurations
have been checked and a Control Test has been satisfactorily
completed. Protection by safety controls cannot be assumed
until all control configurations have been confirmed. Do not
assume the values in the chiller are correct. They should match
the chiller labels and data sheets for the selection. If you have
questions contact the Carrier Technical Service Manager or
Service Engineering.
See the 19XR with PIC 6 Controls Operation and Troubleshooting
manual for instructions on using the PIC 6 interface to configure
the 19XR unit. As the unit is configured, all configuration settings
should be written down. A log, such as the one shown on pages
CL-1 to CL-11, provides a list for configuration values for future
reference. When installing new software ensure to select to keep
all configuration data so all data does not have to be reentered
manually.

Input the Design Set Points

To access the set point screen, press the Main Menu icon on the
home screen. See Fig. 28.
Fig. 28 — Main Menu Icon
The Main Menu screen is displayed. Press the Set Point Table icon
(Fig. 29). Note that Login level must exceed Basic to have access
to this set point.
Fig. 29 — Main Menu — Set Point Table Icon
The set point screen is displayed (see Fig. 30). Set the base de-
mand limit set point, and either the LCW set point or the ECW set
point. To set a value, press the appropriate set point, enter the val-
ue, and press OK. For more information, see the 19XR with PIC 6
Controls Operation and Troubleshooting manual.
Fig. 30 — Set Point Table Screen

Input the Local Occupied Schedule

Access the schedule screen and set up the occupied time schedule ac-
cording to the customer's requirements. If no schedule is available,
the default is factory set for 24 hours occupied, 7 days per week in-
cluding holidays. The Schedule Menu as well as the Holiday Menu
can be reached through the Configuration Menu (see Appendix A on
page 110 for an overview of the available menus). When the control
mode is LOCAL SCHEDULE, the chiller will be automatically
started if the configured local schedule is occupied; it will be shut
down by the unoccupied schedule, EMSTOP software point, STOP
button on HMI screen, or remote emergency stop contact.
The Network Schedule should be configured if a CCN system is
being installed. When control mode is NETWORK, the chiller can
be started and stopped by the CHIL_S_S software point as written
by other equipment through the network command and network
schedule. The chiller can be shut down by EMSTOP software
point and remote emergency stop contact.
For more information about setting time schedules, see the 19XR
with PIC 6 Controls Operation and Troubleshooting manual.

Input Service Configurations

For specific values for the following configurations, refer to the
chiller performance data or job-specific data sheet:
• password
• log in/logout
• input time and date
• service parameters
• equipment configuration
• automated control test
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