To View Status; Forcing Operations - Carrier AquaEdge 19XRV series Operation, Maintenance And Installation Manual

Single-stage or two-stage semi-hermetic centrifugal liquid chillers with pic iii controls and hfc-134a 50/60 hz
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TO VIEW STATUS (FIG. 22) — The status 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
point status tables.
2. Press
or
NEXT
PREVIOUS
status table. The list of tables is:
MAINSTAT — Overall chiller status
VPF_STAT — Variable primary flow surge prevention
algorithm 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 VFD
ICVC_PWD — Service menu password forcing access
screen
3. Press
to view the desired point status table.
SELECT
4. On the point status table, press
until the desired point is displayed on the screen.
19XRV_II MAINSTAT
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
Fig. 22 — Example of Status Screen
to view the list of
STATUS
to highlight the desired
or
NEXT
PREVIOUS
POINT STATUS
OFF
Ready
0.0 Min
NO
NORMAL
STOP
Open
0.0 F
44.0 F
44.6 F
100%
0.0%
a19-1615

FORCING OPERATIONS

To Force (manually override) a Value or Status
1. From any point status screen, press
to highlight the desired value.
PREVIOUS
2. Press
SELECT
For Discrete Points — Press
lect the desired state.
For
Analog
Points
to select the desired value.
DECREASE
3. Press
to register the new value.
ENTER
NOTE: When forcing or changing metric values, it is neces-
sary to hold down the softkey for a few seconds in order to see
a value change, especially on kilopascal values.
To Remove a Force
1. On the point status table press
to highlight the desired value.
2. Press
SELECT
3. Press
RELEASE
point to the PIC III's automatic control.
27
NEXT
to select the highlighted value.
or
START
STOP
Press
INCREASE
or
NEXT
PREVIOUS
to access the highlighted value.
to remove the force and return the
or
to se-
or

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