Alarms And Alerts - Carrier 19XR Start-Up, Operation And Maintenance Instructions Manual

IMPORTANT: The following notes apply to all Table 2
examples.
1. Only 12 lines of information appear on the CVC screen at any one
time. Press the NEXT or PREVIOUS softkey to highlight a
point or to view items below or above the current screen. Press
the NEXT softkey twice to page forward; press the
PREVIOUS softkey twice to page back.
2. To access the information shown in Examples 9 through 21, enter
your 4-digit password after pressing the SERVICE softkey. If
no softkeys are pressed for 15 minutes, the CVC automatically
logs off (to prevent unrestricted access to PIC II controls) and re-
verts to the default screen. If this happens, you must reenter your
password to access the tables shown in Examples 9 through 21.
3. Terms in the Description column of these tables are listed as they
appear on the CVC screen.
4. The CVC may be configured in English or Metric (SI) units using
the CVC CONFIGURATION screen. See the Service Operation
section, page 43, for instructions on making this change.
5. The items in the Reference Point Name column do not appear on
the CVC screen . They are data or variable names used in CCN or
Building Supervisor (BS) software. They are listed in these tables
as a convenience to the operator if it is necessary to cross ref-
erence CCN/BS documentation or use CCN/BS programs. For more
information, see the 19XR CCN literature.
DESCRIPTION
(PRIMARY MESSAGE)
(SECONDARY MESSAGE)
(DATE AND TIME)
Compressor Ontime
Entering Chilled Water
Leaving Chilled Water
Evaporator Temperature
Entering Condenser Water
Leaving Condenser Water
Condenser Temperature
Oil Pressure
Oil Sump Temp
Average Line Current
NOTE: The last three entries are used to indicate operating mode to the PIC II. These values may be forced by the CVC only.
Table 2 — CVC Display Data
EXAMPLE 1 — CVC DEFAULT SCREEN
The following data is displayed in the CVC Default screen.
RANGE UNITS
0-500000.0 HOURS
−40-245 DEG F
−40-245 DEG F
−40-245 DEG F
−40-245 DEG F
−40-245 DEG F
−40-245 DEG F
0-420 PSI
−40-245 DEG F
0-999 %
0-1
0-1
0-1
21
6. Reference Point Names shown in these tables in all capital letters
can be read by CCN and BS software. Of these capitalized names,
those preceded by a dagger can also be changed (that is, written
to) by the CCN, BS, and the CVC. Capitalized Reference Point
Names preceded by two asterisks can be changed only from the
CVC. Reference Point Names in lower case type can be viewed
by CCN or BS only by viewing the whole table.
7. Alarms and Alerts: An asterisk in the far right field of a CVC status
screen indicates that the chiller is in an alarm state; an exclama-
tion point in the far right field of the CVC screen indicates an alert
state. The asterisk (or exclamation point) indicates that the value
on that line has exceeded (or is approaching) a limit. For more
information on alarms and alerts, see the Alarms and Alerts
section, page 14.
LEGEND
CCN — Carrier Comfort Network
CHW — Chilled Water
CHWR — Chilled Water Return
CHWS — Chilled Water Supply
CVC — Chiller Visual Control
CT — Current Transformer
ECW — Entering Chilled Water
HGBP — Hot Gas Bypass
ISM — Integrated Starter Module
LCW — Leaving Chilled Water
LRA — Locked Rotor Amps
mA — Milliamps
P — Pressure
SS — Solid State
T — Temperature
VFD — Variable Frequency Drive
WSM — Water System Manager
REFERENCE POINT NAME
(ALARM HISTORY)
C HRS
ECW
LCW
ERT
ECDW
LCDW
CRT
OILPD
OILT
AMPS %
CCN
LOCAL
RESET
DISPLAY
CHW IN
CHW OUT
EVAP REF
CDW IN
CDW OUT
COND REF
OILPRESS
OIL TEMP
AMPS %