Specifications

Table 2 — CVC Display Data (cont)
EXAMPLE 10 — OVERRIDE DISPLAY SCREEN
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 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 90-180 PSI CP OVER
Evaporator Refrig Temp −40-245 DEG F ERT
Evap Ref Override Temp 2-45 DEG F ERT
OVER
Comp Discharge Temp −40-245 DEG F CMPD
Comp Discharge Alert 125-200 DEG F CD
ALEERT
Comp Thrust Brg Temp −40-245 DEG F MTRB
Comp Thrust Brg Alert 165-185 DEG F TB ALERT
Actual Superheat −20-99 ^ F SUPRHEAT
Superheat Required 6-99 ^ F SUPR
REQ
Condenser Refrig Temp −40-245 DEG F CRT
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 MENU
.
2. Press SERVICE
.
3. Scroll down to highlight CONTROL ALGORITHM STATUS .
4. Press SELECT
.
5. Scroll down to highlight LL
MAINT. .
DESCRIPTION STATUS UNITS POINT
Lead Lag Control
LEAD/LAG: NOTE 1 leadlag
Configuration Current Mode NOTE 2 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 ^ DEG 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
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.
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