Carrier 19XR,XRV Hermetic Centrifugal Liquid Chillers User Manual
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Table 2 — CVC/ICVC Display Data (cont)
EXAMPLE 2 — MAINTSTAT DISPLAY SCREEN
To access this display from the CVC/ICVC default screen:
1. Press .
2. Press
(
will be highlighted).
3. Press .
NOTES:
1. Reset, Off, Local, CCN
2. Timeout, Ready, Recycle, Prestart, Start-up, Ramping, Running, Demand, Override, Shutdown, Trippout, Pumpdown, Lockout
3. Normal, Alert, Alarm
4. All variables with capital letter point names are available for CCN read operation. Those shown with (*) support write operations for all CCN
devices.
EXAMPLE 3 — STARTUP DISPLAY SCREEN
To access this display from the CVC/ICVC default screen:
1. Press
.
2. Press .
3. Scroll down to highlight
.
4. Press .
NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation. Those shown with (**) shall support write
operations for the CVC/ICVC only.
DESCRIPTION
STATUS
UNITS
POINT
Control Mode
NOTE 1
NOTE 1
MODE
Run Status
NOTE 2
NOTE 2
STATUS
Start Inhibit Timer
0-15
min
T_START
Occupied?
0/1
NO/YES
OCC
System Alert/Alarm
0-2
NOTE 3
SYS_ALM
*Chiller Start/Stop
0/1
STOP/START
CHIL_S_S
*Remote Start Contact
0/1
OPEN/CLOSE
REMCON
Temperature Reset
–30-30
DEG F
T_RESET
*Control Point
10-120
DEG F
LCW_STPT
Chilled Water Temp
–40-245
DEG F
CHW_TMP
*Active Demand Limit
40-100
%
DEM_LIM
Average Line Current
0-999
%
%_AMPS
Motor Percent Kilowatts
0-999
%
KW_P
Auto Demand Limit Input
4-20
mA
AUTODEM
Auto Chilled Water Reset
4-20
mA
AUTORES
Remote Reset Sensor
–40-245
DEG F
R_RESET
Total Compressor Starts
0-99999
c_starts
Starts in 12 Hours
0-8
STARTS
Compressor Ontime
0-500000.0
HOURS
c_hrs
*Service Ontime
0-32767
HOURS
S_HRS
Ice Build Contact
0-1
OPEN/CLOSE
ICE_CON
Refrigerant Leak Sensor
0-20
mA
REF_LEAK
DESCRIPTION
STATUS
UNITS
POINT
Actual Guide Vane Pos
0-100
%
GV_ACT
**Chilled Water Pump
0-1
OFF/ON
CHWP
Chilled Water Flow
0-1
NO/YES
CHW_FLOW
**Condenser Water Pump
0-1
OFF/ON
CDP
Condenser Water Flow
0-1
NO/YES
CDW_FLOW
Oil Pump Relay
0-1
OFF/ON
OILR
**Oil Pump Delta P
–6.7-200
^PSI
OILPD
Compressor Start Relay
0-1
OFF/ON
CMPR
Compressor Start Contact
0-1
OPEN/CLOSED
CR_AUX
Starter Trans Relay
0-1
OFF/ON
CMPTRANS
Compressor Run Contact
0-1
OPEN/CLOSED
RUN_AUX
**Tower Fan Relay Low
0-1
OFF/ON
TFR_LOW
**Tower Fan Relay High
0-1
OFF/ON
TFR_HIGH
Starter Fault
0-1
ALARM/NORMAL
STR_FLT
Spare Safety Input
0-1
ALARM/NORMAL
SAFETY
Shunt Trip Relay
0-1
OFF/ON
TRIPR
ISM Fault Status
0-255
STRSTAT
MENU
STATUS
MAINSTAT
SELECT
MENU
STATUS
STARTUP
SELECT