Carrier 23xl Start-Up, Operation And Maintenance Instructions Manual page 31

To access this display from the CVC default screen:
1. Press .
MENU
2. Press .
SERVICE
3. Scroll down to highlight CONTROL ALGORITHM STATUS
4. Press SELECT .
5. Scroll down to highlight
OVERRIDE
DESCRIPTION
Comp Motor Winding Temp
Comp Motor Temp Override
Condenser Pressure
Cond Press Override
Evaporator Refrig Temp
Evap Ref Override Temp
Comp Discharge Temp
Comp Discharge Alert
Oil Filter Delta P
Discharge Superheat
Rotor Inlet Temperature
Condenser Refrig Temp
NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on
maintenance screens.
To access this display from the CVC default screen:
1. Press MENU .
2. Press SERVICE .
3. Scroll down to highlight CONTROL ALGORITHM STATUS
4. Press SELECT .
5. Scroll down to highlight LL_MAINT.
DESCRIPTION
Lead Lag Control
LEADLAG: Configuration
Current Mode
Load Balance Option
LAG Start Time
LAG Stop Time
Prestart Fault Time
Pulldown: Delta T/Min
Satisfied ?
LEAD CHILLER in Control
LAG CHILLER: Mode
Run Status
Start/Stop
Recovery Start Request
STANDBY CHILLER: Mode
Run Status
Start/Stop
Recovery Start Request
Spare Temperature 1
Spare Temperature 2
NOTES:
1. DISABLE, LEAD, LAG, STANDBY, INVALID
2. DISABLE, LEAD, LAG, STANDBY, RECOVERY, CONFIG
3. Reset, Off, Local, CCN
4. Timeout, Ready, Recycle, Prestart, Startup, Ramping, Running, Demand, Override, Shutdown, Trippout, Pumpdown, Lockout
5. Stop, Start, Retain
6. All variables with CAPITAL LETTER point names are available for CCN read operation;
forcing shall not be supported on maintenance screens.
Table 3 — CVC Display Data (cont)
EXAMPLE 10 — OVERRIDE DISPLAY SCREEN
.
.
STATUS
–40-245
150-200
0-420
150-260
–40-245
2-245
–40-245
125-200
0-245
–20-999
–40-245
–40-245
EXAMPLE 11 — LL_MAINT DISPLAY SCREEN
.
.
STATUS
NOTE 1
NOTE 2
NOTE 3
0/1
2-60
2-60
2-30
x.xx
0/1
0/1
NOTE 3
NOTE 4
NOTE 5
0/1
NOTE 3
NOTE 4
NOTE 5
0/1
–40-245
–40-245
31
UNITS
DEG F
DEG F
PSI
PSI
DEG F
DEG F
DEG F
DEG F
PSI
^F
DEG F
DEG F
UNITS
DSABLE/ENABLE
MIN
MIN
MIN
^F
NO/YES
NO/YES
NO/YES
NO/YES
DEG F
DEG F
POINT
MTRW
MT_OVER
CRP
CP_OVER
ERT
RT_OVER
CMPD
CD_ALERT
OILF_PD
SUPRHEAT
ROTOR_T
CRT
POINT
leadlag
leadlag
llmode
loadbal
lagstart
lagstop
preflt
pull_dt
pull_sat
leadctrl
lagmode
lagstat
lag_s_s
lag_rec
stdmode
stdstat
std_s_s
std_rec
SPARE_T1
SPARE_T2