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

Hermetic centrifugal liquid chillers with pic iii controls 50/60 hz hfc-134a
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Table 4 -- ICVC Display Data
I
IMPORTANT:
The
following
notes
apply
to all Table 4
examples.
1. Only 12 lines of information
appear on the chiller display screen
at any one time. Press the _
or I PREVlOUS I softkey to
highlight a point or to view items below or above the current
screen. Double click the _
softkey to page forward; press
the IPREVIOUS]
softkey twice to page back.
2. To access the information
shown in Examples
10 through 22,
enter a 4-digit password after pressing the _
softkey. If
no softkeys are pressed for 15 minutes, the ICVC automatically
logs off (to prevent unrestricted
access to PIC III controls) and
reverts to the default screen. If this happens, re-enter the pass-
word to access the tables shown in Examples 10 through 22.
3. Terms in the Description
column of these tables are listed as
they appear on the chiller display screen.
4. The ICVC may be configured in English or Metric (Sl) units using
the ICVC CONFIGURATION
screen. See the Service Operation
section, page 48, for instructions
on making this change.
5. The items in the Reference Point Name column do not appear on
the chiller display 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 reference
CCN/BS
documentation
or use CCN/BS
pro-
grams. For more information,
see the 19XRV CCN literature.
6. Reference
Point Names shown in these tables in all capital let-
ters 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 ICVC. Capitalized
Refer-
ence Point Names preceded
by two asterisks
can be changed
only from the ICVC. 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 ICVC sta-
tus screen indicates that the chiller is in an alarm state; an excla-
mation point in the far right field of the ICVC 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 16.
LEGEND
CCN
-- Carrier Comfort Network
CHW
-- Chilled Water
CHWR
-- Chilled Water Return
CHWS
-- Chilled Water Supply
CT
-- Current Transformer
ECW
-- Entering Chilled Water
HGBP
-- Hot Gas Bypass
ICVC
-- International
Chiller Visual Controller
LOW
-- Leaving Chilled Water
LRA
-- Locked Rotor Amps
mA
-- Milliamps
P
-- Pressure
PIC III
-- Product Integrated Controls III
SS
-- Solid State
T
-- Temperature
VFD
-- Variable Frequency Drive
WSM
-- Water System Manager
EXAMPLE 1 -- CHILLER DISPLAY DEFAULT SCREEN
The following data is displayed in the Default screen.
DESCRIPTION
STATUS
UNITS
REFERENCE
POINT NAME
DISPLAY
(ALARM HISTORY)
(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
0-500000.0
-40-245
-40-245
-40-245
-40-245
-40-245
-40-245
0-420
40-245
0-999
0-1
0-1
0-1
HOURS
DEG F
DEG F
DEG F
DEG F
DEG F
DEG F
PSI
DEG F
%
C HRS
ECW
LCW
ERT
ECDW
LCDW
CRT
OILPD
OILT
AMPS_%
CCN
LOCAL
RESET
NOTE: The last three entries are used to indicate operating mode to the PIC Ill. These values may be forced by the ICVC only.
CHW IN
CHW OUT
EVAP REF
CDW IN
CDW OUT
COND REF
OILPRESS
OIL TEMP
AMPS%
23

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