Specifications

Table 2 — CVC Display Data (cont)
EXAMPLE 8 — SETPOINT DISPLAY SCREEN
To access this display from the CVC default screen:
1. Press MENU
.
2. Press SETPOINT
(Base Demand Limit will be highlighted).
3. Press SELECT
.
DESCRIPTION STATUS UNITS POINT DEFAULT
Base Demand Limit
Control Point 40-100 % DLM 100
LCW Set Point 10-120 DEG F lcw
sp 50.0
ECW Set Point 15-120 DEG F ecw sp 60.0
Ice Build Set Point 15-60 DEG F ice
sp 40.0
Tower Fan High Set Point 55-105 DEG F TFH SP 75
NOTE: All variables are available for CCN read operation; forcing shall not be supported on set point screens.
EXAMPLE 9 — CAPACITY 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 CAPACITY
.
DESCRIPTION STATUS UNITS POINT
Entering Chilled Water −40-245 DEG F ECW
Leaving Chilled Water −40-245 DEG F LCW
Capacity Control
Control Point 10-120 DEG F ctrlpt
Control Point Error −99-99 DEG F cperr
ECW Delta T −99-99 DEG F ecwdt
ECW Reset −99-99 DEG F ecwres
LCW Reset −99-99 DEG F lcwres
Total Error + Resets −99-99 DEG F error
Guide Vane Delta −2-2 % gvd
Target Guide Vane Pos 0-100 % GV
TRG
Actual Guide Vane Pos 0-100 % GV POS
Target VFD Speed 0-100 % VFD
OUT
Actual VFD Speed 0-100 % VFD ACT
VFD Gain 0.1-1.5 VFD CTRL
Demand Inhibit Active 0-1 NO/YES DEM
INH
Amps/kW Ramp 0-100 % DMDLIM
NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance
screen.
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