To View And Change Set Points; Service Operation - Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual

Fig. 19 — Example of Time Schedule
Operation Screen
7. Press to register the values and to move hori-
ENTER
zontally (left to right) within a period.
8. Press to leave the PERIOD or OVERRIDE.
EXIT
9. Either return to Step 4 to select another PERIOD or
OVERRIDE, or press
time schedule screen and save the changes.
10. The Holiday Designation (HOLIDEF table) may be
found in the Service Operation section, page 51. The
month, day, and duration for the holiday must be
assigned. The Broadcast function in the BRODEF
table also must be enabled for holiday periods to
function.
TO VIEW AND CHANGE SET POINTS (Fig. 20)
1. To view the SETPOINT table, from the MENU screen
press .
SETPOINT
2. There are 5 set points on this screen: BASE DEMAND
LIMIT, LCW SETPOINT (leaving chilled water set
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EXIT again to leave the current
point), ECW SETPOINT (entering chilled water set
point), ICE BUILD SETPOINT, and TOWER FAN
HIGH SETPOINT. Only one of the chilled water set
points can be active at one time. The set point that is
active is determined from the SERVICE menu. See the
Service Operation section, page 51. The ice build (ICE
BUILD) function is also activated and configured from
the SERVICE menu.
3. Press or
NEXT
set point entry.
4. Press
SELECT
5. Press
INCREASE
ed set point value.
6. Press to save the changes and return to the pre-
ENTER
vious screen.
SERVICE OPERATION — To view the menu-driven pro-
grams available for Service Operation, see Service Operation
section, page 51. For examples of ICVC display screens, see
Table 4.
Fig. 20 — Example of Set Point Screen
25
to highlight the desired
PREVIOUS
to modify the highlighted set point.
or to change the select-
DECREASE
19XRV_II SETPOINT SETPOINT SELECT
Base Demand Limit
100%
Control Point
LCW Setpoint
50.0 F
ECW Setpoint
60.0 F
ICE BUILD Setpoint
40.0 F
Tower Fan High Setpoint
85.0 F
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