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