• Press QUIT to leave the selected decision or field with-
out saving any changes.
• Press ENTER to leave the selected decision or field and
save changes.
• Press NEXT to scroll the cursor bar down in order to
highlight a point or to view more points below the current
screen.
• Press PREVIOUS to scroll the cursor bar up in order to
highlight a point or to view points above the current screen.
• Press SELECT to view the next screen level (high-
lighted with the cursor bar), or to override (if allowable)
the highlighted point value.
• Press EXIT to return to the previous screen level.
• Press INCREASE or DECREASE to change the high-
lighted point value.
TO VIEW STATUS (Fig. 14) — The status table shows the
actual value of overall chiller status such as CONTROL MODE,
RUN STATUS, AUTO CHILLED WATER, RESET, and RE-
MOTE RESET SENSOR.
1. On the menu screen, press STATUS to view the list of
point status tables.
2. Press NEXT or PREVIOUS to highlight the desired
status table. The list of tables is:
• MAINSTAT — Overall chiller status
• STARTUP — Status required to perform startup 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
• ISM_STAT — Status of motor starter
• CVC_PSWD — Service menu password forcing ac-
cess screen
3. Press SELECT to view the desired point status table.
4. On
the
point
status
table,
press
NEXT
or
PREVIOUS until the desired point is displayed on the
screen.
OVERRIDE OPERATIONS
To Override a Value or Status
1. From any point status screen, press
NEXT
or
PREVIOUS to highlight the desired value.
2. Press SELECT to select the highlighted value. Then:
19XR_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
Average Line Current
OFF
Ready
0.0 Min
NO
NORMAL
STOP
Open
0.0 F
44.0 F
44.6 F
100%
0.0%
Fig. 14 — Example of Status Screen
15
Summary of Contents for HERMETIC CENTRIFUGAL LIQUID CHILLERS 19XR
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