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4.4 - BASIC ICVC OPERATIONS (using the softkeys)
To perform any of the operations described below, the PIC
III must be powered up and have successfully completed
its self test.
•
Press
QUIt
to leave the selected decision or field
without saving any changes.
INCREASE
DECREASE
QUIt
ENTER
•
Press
enteR
to leave the selected decision or field
and save changes.
INCREASE
DECREASE QUIT
enteR
•
Press
neXt
to scroll the cursor bar down in order to
highlight a point or to view more points below the
current screen.
neXt
PREVIOUS
SELECT
EXIT
•
Press
pReVIoUS
to scroll the cursor bar up in order
to highlight a point or to view points above the
current screen.
NEXT
pReVIoUS
SELECT
EXIT
•
Press
SeLeCt
to view the next screen level (high-
lighted with the cursor bar), or to override (if
allowable) the highlighted point value.
NEXT
PREVIOUS
SeLeCt
EXIT
•
Press
eXIt
to return to the previous screen level.
NEXT
PREVIOUS
SELECT
eXIt
•
Press
InCReASe
or
DeCReASe
to change the
highlighted point value.
InCReASe
DeCReASe
QUIT
ENTER
4.4.1 - to view status (Fig. 7)
The MAINSTAT table shows the actual value of overall
chiller status such as CONTROL MODE, RUN STATUS,
AUTO CHILLED WATER RESET and REMOTE
RESET SENSOR.
1. On the menu screen, press
StAtUS
to view the list of
point status tables.
StAtUS
SCHEDULE SETPOINT SERVICE
. Press
neXt
or
pReVIoUS
to highlight the desired
status table. The list of tables is:
•
MAINSTAT - Overall chiller status
•
STARTUP - Status required to perform start-up
of chiller
•
COMPRESS - Status of sensors related to the
compressor
•
HEAT_EX - Status of sensors related to the heat
exchangers
•
POWER - Status of motor input power
•
VFD_STAT - Status of the variable frequency
drive
•
ICVC_PSWD - Service menu password forcing
access screen
neXt
pReVIoUS
SELECT
EXIT
3. Press
SeLeCt
to view the desired point status table.
NEXT
PREVIOUS
SeLeCt
EXIT
4. On the point status table, press
neXt
or
pReVIoUS
until the desired point is displayed on the screen.
neXt
pReVIoUS
SELECT
EXIT
Fig. 7 - Example of Status screen
19XRV_II MAINSTAT
POINT STATUS
Control Mode
Run Status
Start Inhibit Timer
Occupied?
System Alert/Alarm
Chiller Start/Stop
Remote Start Contact
Temperature Reset
Control Point
Chilled Water Temp
Active Demand Limit
Percent Line Current
OFF
Ready
0.0 Min
NO
NORMAL
STOP
Open
0.0 F
44.0 F
44.6 F
100%
0.0%